2006-03-22 22:10:33

by Mark Rustad

[permalink] [raw]
Subject: 2.6.16 hugetlbfs problem

Folks,

I seem to be having trouble using hugetlbfs with kernel 2.6.16. I
have a small test program that worked with 2.6.16-rc5, but fails with
2.6.16-rc6 or the release. The program is below. Given a path to a
file on a hugetlbfs, it opens/creates the file, mmaps it and tries to
access the first word. On 2.6.16-rc5, it works. On 2.6.16, it hangs
page-faulting until it is killed.

#include <stdint.h>
#include <unistd.h>
#include <sys/types.h>
#include <stdio.h>
#include <fcntl.h>
#include <sys/mman.h>
#include <sys/stat.h>


int main(int argc, char *argv[])
{
unsigned len = 4 * 1024 * 1024;
void *vaddr = (void *)0x48000000;
int hfd;
void *p;
int *ip;

if (!argc || !argv[1] || !argv[1][0]) {
fprintf(stderr, "Missing argument\n");
return 1;
}
hfd = open(argv[1], O_RDWR | O_CREAT, S_IRUSR | S_IWUSR);
if (hfd < 0) {
perror("open");
return 1;
}
p = mmap(vaddr, len, PROT_READ | PROT_WRITE, MAP_SHARED | MAP_FIXED,
hfd, 0);
if (p == MAP_FAILED) {
perror("mmap");
fprintf(stderr, "mmap failed at %p\n", vaddr);
return 1;
}
ip = p;
*ip = 0; // This loops on page faults
close(hfd);
printf("Size %d in file %s\n", len, argv[1]);

return 0;
}

Any ideas?

--
Mark Rustad, [email protected]


2006-03-22 22:14:45

by David Miller

[permalink] [raw]
Subject: Re: 2.6.16 hugetlbfs problem

From: Mark Rustad <[email protected]>
Date: Wed, 22 Mar 2006 16:10:33 -0600

> I seem to be having trouble using hugetlbfs with kernel 2.6.16. I
> have a small test program that worked with 2.6.16-rc5, but fails with
> 2.6.16-rc6 or the release. The program is below. Given a path to a
> file on a hugetlbfs, it opens/creates the file, mmaps it and tries to
> access the first word. On 2.6.16-rc5, it works. On 2.6.16, it hangs
> page-faulting until it is killed.

On what platform? Things like hugetlb and address space layout
(you're requesting a specific mmap() address I noticed) are very
platform specific.

2006-03-22 23:32:57

by Mark Rustad

[permalink] [raw]
Subject: Re: 2.6.16 hugetlbfs problem

On Mar 22, 2006, at 4:13 PM, David S. Miller wrote:

> From: Mark Rustad <[email protected]>
> Date: Wed, 22 Mar 2006 16:10:33 -0600
>
>> I seem to be having trouble using hugetlbfs with kernel 2.6.16. I
>> have a small test program that worked with 2.6.16-rc5, but fails with
>> 2.6.16-rc6 or the release. The program is below. Given a path to a
>> file on a hugetlbfs, it opens/creates the file, mmaps it and tries to
>> access the first word. On 2.6.16-rc5, it works. On 2.6.16, it hangs
>> page-faulting until it is killed.
>
> On what platform? Things like hugetlb and address space layout
> (you're requesting a specific mmap() address I noticed) are very
> platform specific.

This is on a Xeon, without PAE with the 1GB no-highmem memory map, in
all three cases. This is a 32-bit kernel running on a Nacona CPU. I
also had an unmap call over the range to be mmap-ed, but the failure/
success cases were the same, so I removed it to reduce the test
program further.

--
Mark Rustad, [email protected]

2006-03-23 05:43:53

by Chen, Kenneth W

[permalink] [raw]
Subject: RE: 2.6.16 hugetlbfs problem

Mark Rustad wrote on Wednesday, March 22, 2006 3:33 PM
> >> I seem to be having trouble using hugetlbfs with kernel 2.6.16. I
> >> have a small test program that worked with 2.6.16-rc5, but fails with
> >> 2.6.16-rc6 or the release. The program is below. Given a path to a
> >> file on a hugetlbfs, it opens/creates the file, mmaps it and tries to
> >> access the first word. On 2.6.16-rc5, it works. On 2.6.16, it hangs
> >> page-faulting until it is killed.
> >
> > On what platform? Things like hugetlb and address space layout
> > (you're requesting a specific mmap() address I noticed) are very
> > platform specific.
>
> This is on a Xeon, without PAE with the 1GB no-highmem memory map, in
> all three cases. This is a 32-bit kernel running on a Nacona CPU. I
> also had an unmap call over the range to be mmap-ed, but the failure/
> success cases were the same, so I removed it to reduce the test
> program further.

It might be something else happening in your environment. I ran your test
code on a similar system. It ran just fine.

- Ken

2006-03-23 15:37:00

by Mark Rustad

[permalink] [raw]
Subject: Re: 2.6.16 hugetlbfs problem

On Mar 22, 2006, at 11:43 PM, Chen, Kenneth W wrote:

> Mark Rustad wrote on Wednesday, March 22, 2006 3:33 PM
>>>> I seem to be having trouble using hugetlbfs with kernel 2.6.16. I
>>>> have a small test program that worked with 2.6.16-rc5, but fails
>>>> with
>>>> 2.6.16-rc6 or the release. The program is below. Given a path to a
>>>> file on a hugetlbfs, it opens/creates the file, mmaps it and
>>>> tries to
>>>> access the first word. On 2.6.16-rc5, it works. On 2.6.16, it hangs
>>>> page-faulting until it is killed.
>>>
>>> On what platform? Things like hugetlb and address space layout
>>> (you're requesting a specific mmap() address I noticed) are very
>>> platform specific.
>>
>> This is on a Xeon, without PAE with the 1GB no-highmem memory map, in
>> all three cases. This is a 32-bit kernel running on a Nacona CPU. I
>> also had an unmap call over the range to be mmap-ed, but the failure/
>> success cases were the same, so I removed it to reduce the test
>> program further.
>
> It might be something else happening in your environment. I ran
> your test
> code on a similar system. It ran just fine.

Perhaps. I have tried more stuff here, but still no joy. I have put
my kernel configuration below. You will see that it is a mostly-
monolithic kernel. It is weird that it works with 2.6.16-rc5, but not
later. I looked at the incremental patch but nothing jumped out at
me, but I am not a vm wizard. I will look again.

#
# Automatically generated make config: don't edit
# Linux kernel version: 2.6.16-0a
# Mon Mar 20 12:42:24 2006
#
CONFIG_X86_32=y
CONFIG_SEMAPHORE_SLEEPERS=y
CONFIG_X86=y
CONFIG_MMU=y
CONFIG_GENERIC_ISA_DMA=y
CONFIG_GENERIC_IOMAP=y
CONFIG_ARCH_MAY_HAVE_PC_FDC=y
CONFIG_DMI=y

#
# Code maturity level options
#
CONFIG_EXPERIMENTAL=y
CONFIG_LOCK_KERNEL=y
CONFIG_INIT_ENV_ARG_LIMIT=32

#
# General setup
#
CONFIG_LOCALVERSION=""
# CONFIG_LOCALVERSION_AUTO is not set
CONFIG_SWAP=y
# CONFIG_SYSVIPC is not set
# CONFIG_POSIX_MQUEUE is not set
# CONFIG_BSD_PROCESS_ACCT is not set
CONFIG_SYSCTL=y
# CONFIG_AUDIT is not set
# CONFIG_IKCONFIG is not set
# CONFIG_CPUSETS is not set
CONFIG_INITRAMFS_SOURCE=""
# CONFIG_UID16 is not set
# CONFIG_VM86 is not set
# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
CONFIG_EMBEDDED=y
CONFIG_KALLSYMS=y
CONFIG_KALLSYMS_ALL=y
# CONFIG_KALLSYMS_EXTRA_PASS is not set
CONFIG_HOTPLUG=y
CONFIG_PRINTK=y
CONFIG_BUG=y
CONFIG_ELF_CORE=y
CONFIG_BASE_FULL=y
CONFIG_FUTEX=y
CONFIG_EPOLL=y
CONFIG_SHMEM=y
CONFIG_CC_ALIGN_FUNCTIONS=0
CONFIG_CC_ALIGN_LABELS=0
CONFIG_CC_ALIGN_LOOPS=0
CONFIG_CC_ALIGN_JUMPS=0
CONFIG_SLAB=y
# CONFIG_TINY_SHMEM is not set
CONFIG_BASE_SMALL=0
# CONFIG_SLOB is not set

#
# Loadable module support
#
CONFIG_MODULES=y
CONFIG_MODULE_UNLOAD=y
CONFIG_MODULE_FORCE_UNLOAD=y
CONFIG_OBSOLETE_MODPARM=y
# CONFIG_MODVERSIONS is not set
# CONFIG_MODULE_SRCVERSION_ALL is not set
# CONFIG_KMOD is not set
CONFIG_STOP_MACHINE=y

#
# Block layer
#
CONFIG_LBD=y

#
# IO Schedulers
#
CONFIG_IOSCHED_NOOP=y
# CONFIG_IOSCHED_AS is not set
# CONFIG_IOSCHED_DEADLINE is not set
# CONFIG_IOSCHED_CFQ is not set
# CONFIG_DEFAULT_AS is not set
# CONFIG_DEFAULT_DEADLINE is not set
# CONFIG_DEFAULT_CFQ is not set
CONFIG_DEFAULT_NOOP=y
CONFIG_DEFAULT_IOSCHED="noop"

#
# Processor type and features
#
# CONFIG_X86_PC is not set
# CONFIG_X86_ELAN is not set
# CONFIG_X86_VOYAGER is not set
# CONFIG_X86_NUMAQ is not set
# CONFIG_X86_SUMMIT is not set
# CONFIG_X86_BIGSMP is not set
# CONFIG_X86_VISWS is not set
CONFIG_X86_GENERICARCH=y
# CONFIG_X86_ES7000 is not set
CONFIG_X86_CYCLONE_TIMER=y
# CONFIG_M386 is not set
# CONFIG_M486 is not set
# CONFIG_M586 is not set
# CONFIG_M586TSC is not set
# CONFIG_M586MMX is not set
# CONFIG_M686 is not set
# CONFIG_MPENTIUMII is not set
# CONFIG_MPENTIUMIII is not set
# CONFIG_MPENTIUMM is not set
CONFIG_MPENTIUM4=y
# CONFIG_MK6 is not set
# CONFIG_MK7 is not set
# CONFIG_MK8 is not set
# CONFIG_MCRUSOE is not set
# CONFIG_MEFFICEON is not set
# CONFIG_MWINCHIPC6 is not set
# CONFIG_MWINCHIP2 is not set
# CONFIG_MWINCHIP3D is not set
# CONFIG_MGEODEGX1 is not set
# CONFIG_MGEODE_LX is not set
# CONFIG_MCYRIXIII is not set
# CONFIG_MVIAC3_2 is not set
# CONFIG_X86_GENERIC is not set
CONFIG_X86_CMPXCHG=y
CONFIG_X86_XADD=y
CONFIG_X86_L1_CACHE_SHIFT=7
CONFIG_RWSEM_XCHGADD_ALGORITHM=y
CONFIG_GENERIC_CALIBRATE_DELAY=y
CONFIG_X86_WP_WORKS_OK=y
CONFIG_X86_INVLPG=y
CONFIG_X86_BSWAP=y
CONFIG_X86_POPAD_OK=y
CONFIG_X86_CMPXCHG64=y
CONFIG_X86_GOOD_APIC=y
CONFIG_X86_INTEL_USERCOPY=y
CONFIG_X86_USE_PPRO_CHECKSUM=y
CONFIG_X86_TSC=y
CONFIG_HPET_TIMER=y
CONFIG_HPET_EMULATE_RTC=y
CONFIG_SMP=y
CONFIG_NR_CPUS=2
# CONFIG_SCHED_SMT is not set
# CONFIG_PREEMPT_NONE is not set
# CONFIG_PREEMPT_VOLUNTARY is not set
CONFIG_PREEMPT=y
CONFIG_PREEMPT_BKL=y
CONFIG_X86_LOCAL_APIC=y
CONFIG_X86_IO_APIC=y
CONFIG_X86_MCE=y
CONFIG_X86_MCE_NONFATAL=y
CONFIG_X86_MCE_P4THERMAL=y
# CONFIG_TOSHIBA is not set
# CONFIG_I8K is not set
# CONFIG_X86_REBOOTFIXUPS is not set
CONFIG_MICROCODE=y
CONFIG_X86_MSR=y
CONFIG_X86_CPUID=y

#
# Firmware Drivers
#
CONFIG_EDD=y
# CONFIG_DELL_RBU is not set
# CONFIG_DCDBAS is not set
CONFIG_NOHIGHMEM=y
# CONFIG_HIGHMEM4G is not set
# CONFIG_HIGHMEM64G is not set
# CONFIG_VMSPLIT_3G is not set
CONFIG_VMSPLIT_3G_OPT=y
# CONFIG_VMSPLIT_2G is not set
# CONFIG_VMSPLIT_1G is not set
CONFIG_PAGE_OFFSET=0xB0000000
CONFIG_SELECT_MEMORY_MODEL=y
CONFIG_FLATMEM_MANUAL=y
# CONFIG_DISCONTIGMEM_MANUAL is not set
# CONFIG_SPARSEMEM_MANUAL is not set
CONFIG_FLATMEM=y
CONFIG_FLAT_NODE_MEM_MAP=y
# CONFIG_SPARSEMEM_STATIC is not set
CONFIG_SPLIT_PTLOCK_CPUS=4
# CONFIG_MATH_EMULATION is not set
CONFIG_MTRR=y
# CONFIG_EFI is not set
# CONFIG_IRQBALANCE is not set
CONFIG_REGPARM=y
# CONFIG_SECCOMP is not set
# CONFIG_HZ_100 is not set
CONFIG_HZ_250=y
# CONFIG_HZ_1000 is not set
CONFIG_HZ=250
# CONFIG_KEXEC is not set
CONFIG_PHYSICAL_START=0x100000
# CONFIG_HOTPLUG_CPU is not set
CONFIG_DOUBLEFAULT=y

#
# Power management options (ACPI, APM)
#
CONFIG_PM=y
# CONFIG_PM_LEGACY is not set
# CONFIG_PM_DEBUG is not set

#
# ACPI (Advanced Configuration and Power Interface) Support
#
CONFIG_ACPI=y
# CONFIG_ACPI_AC is not set
# CONFIG_ACPI_BATTERY is not set
CONFIG_ACPI_BUTTON=y
# CONFIG_ACPI_VIDEO is not set
# CONFIG_ACPI_HOTKEY is not set
CONFIG_ACPI_FAN=y
CONFIG_ACPI_PROCESSOR=y
CONFIG_ACPI_THERMAL=y
# CONFIG_ACPI_ASUS is not set
# CONFIG_ACPI_IBM is not set
# CONFIG_ACPI_TOSHIBA is not set
CONFIG_ACPI_BLACKLIST_YEAR=0
# CONFIG_ACPI_DEBUG is not set
CONFIG_ACPI_EC=y
CONFIG_ACPI_POWER=y
CONFIG_ACPI_SYSTEM=y
# CONFIG_X86_PM_TIMER is not set
# CONFIG_ACPI_CONTAINER is not set

#
# APM (Advanced Power Management) BIOS Support
#
# CONFIG_APM is not set

#
# CPU Frequency scaling
#
CONFIG_CPU_FREQ=y
CONFIG_CPU_FREQ_TABLE=y
# CONFIG_CPU_FREQ_DEBUG is not set
CONFIG_CPU_FREQ_STAT=y
# CONFIG_CPU_FREQ_STAT_DETAILS is not set
CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE=y
# CONFIG_CPU_FREQ_DEFAULT_GOV_USERSPACE is not set
CONFIG_CPU_FREQ_GOV_PERFORMANCE=y
# CONFIG_CPU_FREQ_GOV_POWERSAVE is not set
# CONFIG_CPU_FREQ_GOV_USERSPACE is not set
# CONFIG_CPU_FREQ_GOV_ONDEMAND is not set
# CONFIG_CPU_FREQ_GOV_CONSERVATIVE is not set

#
# CPUFreq processor drivers
#
# CONFIG_X86_ACPI_CPUFREQ is not set
# CONFIG_X86_POWERNOW_K6 is not set
# CONFIG_X86_POWERNOW_K7 is not set
# CONFIG_X86_POWERNOW_K8 is not set
# CONFIG_X86_GX_SUSPMOD is not set
CONFIG_X86_SPEEDSTEP_CENTRINO=y
CONFIG_X86_SPEEDSTEP_CENTRINO_ACPI=y
CONFIG_X86_SPEEDSTEP_CENTRINO_TABLE=y
# CONFIG_X86_SPEEDSTEP_ICH is not set
# CONFIG_X86_SPEEDSTEP_SMI is not set
CONFIG_X86_P4_CLOCKMOD=y
# CONFIG_X86_CPUFREQ_NFORCE2 is not set
# CONFIG_X86_LONGRUN is not set
# CONFIG_X86_LONGHAUL is not set

#
# shared options
#
# CONFIG_X86_ACPI_CPUFREQ_PROC_INTF is not set
CONFIG_X86_SPEEDSTEP_LIB=y

#
# Bus options (PCI, PCMCIA, EISA, MCA, ISA)
#
CONFIG_PCI=y
# CONFIG_PCI_GOBIOS is not set
# CONFIG_PCI_GOMMCONFIG is not set
# CONFIG_PCI_GODIRECT is not set
CONFIG_PCI_GOANY=y
CONFIG_PCI_BIOS=y
CONFIG_PCI_DIRECT=y
CONFIG_PCI_MMCONFIG=y
# CONFIG_PCIEPORTBUS is not set
# CONFIG_PCI_MSI is not set
# CONFIG_PCI_LEGACY_PROC is not set
# CONFIG_PCI_DEBUG is not set
CONFIG_ISA_DMA_API=y
# CONFIG_ISA is not set
# CONFIG_MCA is not set
# CONFIG_SCx200 is not set

#
# PCCARD (PCMCIA/CardBus) support
#
# CONFIG_PCCARD is not set

#
# PCI Hotplug Support
#
# CONFIG_HOTPLUG_PCI is not set

#
# Executable file formats
#
CONFIG_BINFMT_ELF=y
# CONFIG_BINFMT_AOUT is not set
CONFIG_BINFMT_MISC=y

#
# Networking
#
CONFIG_NET=y

#
# Networking options
#
# CONFIG_NETDEBUG is not set
CONFIG_PACKET=y
CONFIG_PACKET_MMAP=y
CONFIG_UNIX=y
# CONFIG_NET_KEY is not set
CONFIG_INET=y
CONFIG_IP_MULTICAST=y
CONFIG_IP_ADVANCED_ROUTER=y
CONFIG_ASK_IP_FIB_HASH=y
# CONFIG_IP_FIB_TRIE is not set
CONFIG_IP_FIB_HASH=y
CONFIG_IP_MULTIPLE_TABLES=y
# CONFIG_IP_ROUTE_MULTIPATH is not set
# CONFIG_IP_ROUTE_VERBOSE is not set
# CONFIG_IP_PNP is not set
# CONFIG_NET_IPIP is not set
# CONFIG_NET_IPGRE is not set
# CONFIG_IP_MROUTE is not set
# CONFIG_ARPD is not set
# CONFIG_SYN_COOKIES is not set
# CONFIG_INET_AH is not set
# CONFIG_INET_ESP is not set
# CONFIG_INET_IPCOMP is not set
# CONFIG_INET_TUNNEL is not set
CONFIG_INET_DIAG=y
CONFIG_INET_TCP_DIAG=y
# CONFIG_TCP_CONG_ADVANCED is not set
CONFIG_TCP_CONG_BIC=y
CONFIG_IPV6=y
# CONFIG_IPV6_PRIVACY is not set
# CONFIG_INET6_AH is not set
# CONFIG_INET6_ESP is not set
# CONFIG_INET6_IPCOMP is not set
# CONFIG_INET6_TUNNEL is not set
# CONFIG_IPV6_TUNNEL is not set
# CONFIG_NETFILTER is not set

#
# DCCP Configuration (EXPERIMENTAL)
#
# CONFIG_IP_DCCP is not set

#
# SCTP Configuration (EXPERIMENTAL)
#
# CONFIG_IP_SCTP is not set

#
# TIPC Configuration (EXPERIMENTAL)
#
# CONFIG_TIPC is not set
# CONFIG_ATM is not set
# CONFIG_BRIDGE is not set
# CONFIG_VLAN_8021Q is not set
# CONFIG_DECNET is not set
# CONFIG_LLC2 is not set
# CONFIG_IPX is not set
# CONFIG_ATALK is not set
# CONFIG_X25 is not set
# CONFIG_LAPB is not set
# CONFIG_NET_DIVERT is not set
# CONFIG_ECONET is not set
# CONFIG_WAN_ROUTER is not set

#
# QoS and/or fair queueing
#
# CONFIG_NET_SCHED is not set

#
# Network testing
#
# CONFIG_NET_PKTGEN is not set
# CONFIG_HAMRADIO is not set
# CONFIG_IRDA is not set
# CONFIG_BT is not set
# CONFIG_IEEE80211 is not set

#
# Device Drivers
#

#
# Generic Driver Options
#
CONFIG_STANDALONE=y
CONFIG_PREVENT_FIRMWARE_BUILD=y
# CONFIG_FW_LOADER is not set
# CONFIG_DEBUG_DRIVER is not set

#
# Connector - unified userspace <-> kernelspace linker
#
# CONFIG_CONNECTOR is not set

#
# Memory Technology Devices (MTD)
#
# CONFIG_MTD is not set

#
# Parallel port support
#
# CONFIG_PARPORT is not set

#
# Plug and Play support
#
# CONFIG_PNP is not set

#
# Block devices
#
# CONFIG_BLK_DEV_FD is not set
# CONFIG_BLK_CPQ_DA is not set
# CONFIG_BLK_CPQ_CISS_DA is not set
# CONFIG_BLK_DEV_DAC960 is not set
# CONFIG_BLK_DEV_UMEM is not set
# CONFIG_BLK_DEV_COW_COMMON is not set
CONFIG_BLK_DEV_LOOP=y
# CONFIG_BLK_DEV_CRYPTOLOOP is not set
# CONFIG_BLK_DEV_NBD is not set
# CONFIG_BLK_DEV_SX8 is not set
# CONFIG_BLK_DEV_UB is not set
CONFIG_BLK_DEV_RAM=y
CONFIG_BLK_DEV_RAM_COUNT=8
CONFIG_BLK_DEV_RAM_SIZE=8192
CONFIG_BLK_DEV_INITRD=y
# CONFIG_CDROM_PKTCDVD is not set
# CONFIG_ATA_OVER_ETH is not set

#
# ATA/ATAPI/MFM/RLL support
#
# CONFIG_IDE is not set

#
# SCSI device support
#
# CONFIG_RAID_ATTRS is not set
CONFIG_SCSI=y
CONFIG_SCSI_PROC_FS=y

#
# SCSI support type (disk, tape, CD-ROM)
#
CONFIG_BLK_DEV_SD=y
# CONFIG_CHR_DEV_ST is not set
# CONFIG_CHR_DEV_OSST is not set
CONFIG_BLK_DEV_SR=y
# CONFIG_BLK_DEV_SR_VENDOR is not set
CONFIG_CHR_DEV_SG=y
# CONFIG_CHR_DEV_SCH is not set

#
# Some SCSI devices (e.g. CD jukebox) support multiple LUNs
#
# CONFIG_SCSI_MULTI_LUN is not set
# CONFIG_SCSI_CONSTANTS is not set
CONFIG_SCSI_LOGGING=y

#
# SCSI Transport Attributes
#
# CONFIG_SCSI_SPI_ATTRS is not set
# CONFIG_SCSI_FC_ATTRS is not set
CONFIG_SCSI_ISCSI_ATTRS=y
# CONFIG_SCSI_SAS_ATTRS is not set

#
# SCSI Transport Layers
#
CONFIG_SAS_CLASS=y
CONFIG_SAS_DEBUG=y

#
# SCSI low-level drivers
#
CONFIG_ISCSI_TCP=m
# CONFIG_BLK_DEV_3W_XXXX_RAID is not set
# CONFIG_SCSI_3W_9XXX is not set
# CONFIG_SCSI_ACARD is not set
# CONFIG_SCSI_AACRAID is not set
CONFIG_SCSI_AIC94XX=m
CONFIG_AIC94XX_DEBUG=y
# CONFIG_SCSI_AIC7XXX is not set
# CONFIG_SCSI_AIC7XXX_OLD is not set
# CONFIG_SCSI_AIC79XX is not set
# CONFIG_SCSI_DPT_I2O is not set
# CONFIG_MEGARAID_NEWGEN is not set
# CONFIG_MEGARAID_LEGACY is not set
# CONFIG_MEGARAID_SAS is not set
CONFIG_SCSI_SATA=y
# CONFIG_SCSI_SATA_AHCI is not set
# CONFIG_SCSI_SATA_SVW is not set
# CONFIG_SCSI_ATA_PIIX is not set
# CONFIG_SCSI_SATA_MV is not set
# CONFIG_SCSI_SATA_NV is not set
# CONFIG_SCSI_PDC_ADMA is not set
# CONFIG_SCSI_SATA_QSTOR is not set
# CONFIG_SCSI_SATA_PROMISE is not set
# CONFIG_SCSI_SATA_SX4 is not set
# CONFIG_SCSI_SATA_SIL is not set
# CONFIG_SCSI_SATA_SIL24 is not set
# CONFIG_SCSI_SATA_SIS is not set
# CONFIG_SCSI_SATA_ULI is not set
# CONFIG_SCSI_SATA_VIA is not set
# CONFIG_SCSI_SATA_VITESSE is not set
# CONFIG_SCSI_BUSLOGIC is not set
# CONFIG_SCSI_DMX3191D is not set
# CONFIG_SCSI_EATA is not set
# CONFIG_SCSI_FUTURE_DOMAIN is not set
# CONFIG_SCSI_GDTH is not set
# CONFIG_SCSI_IPS is not set
# CONFIG_SCSI_INITIO is not set
# CONFIG_SCSI_INIA100 is not set
# CONFIG_SCSI_SYM53C8XX_2 is not set
# CONFIG_SCSI_IPR is not set
# CONFIG_SCSI_QLOGIC_FC is not set
# CONFIG_SCSI_QLOGIC_1280 is not set
# CONFIG_SCSI_QLA_FC is not set
# CONFIG_SCSI_LPFC is not set
# CONFIG_SCSI_DC395x is not set
# CONFIG_SCSI_DC390T is not set
# CONFIG_SCSI_NSP32 is not set
# CONFIG_SCSI_DEBUG is not set

#
# Multi-device support (RAID and LVM)
#
# CONFIG_MD is not set

#
# Fusion MPT device support
#
# CONFIG_FUSION is not set
# CONFIG_FUSION_SPI is not set
# CONFIG_FUSION_FC is not set
# CONFIG_FUSION_SAS is not set

#
# IEEE 1394 (FireWire) support
#
# CONFIG_IEEE1394 is not set

#
# I2O device support
#
# CONFIG_I2O is not set

#
# Network device support
#
CONFIG_NETDEVICES=y
# CONFIG_DUMMY is not set
# CONFIG_BONDING is not set
# CONFIG_EQUALIZER is not set
# CONFIG_TUN is not set

#
# ARCnet devices
#
# CONFIG_ARCNET is not set

#
# PHY device support
#

#
# Ethernet (10 or 100Mbit)
#
# CONFIG_NET_ETHERNET is not set

#
# Ethernet (1000 Mbit)
#
# CONFIG_ACENIC is not set
# CONFIG_DL2K is not set
CONFIG_E1000=y
CONFIG_E1000_NAPI=y
# CONFIG_E1000_DISABLE_PACKET_SPLIT is not set
# CONFIG_NS83820 is not set
# CONFIG_HAMACHI is not set
# CONFIG_YELLOWFIN is not set
# CONFIG_R8169 is not set
# CONFIG_SIS190 is not set
# CONFIG_SKGE is not set
# CONFIG_SKY2 is not set
# CONFIG_SK98LIN is not set
# CONFIG_TIGON3 is not set
# CONFIG_BNX2 is not set

#
# Ethernet (10000 Mbit)
#
# CONFIG_CHELSIO_T1 is not set
# CONFIG_IXGB is not set
# CONFIG_S2IO is not set

#
# Token Ring devices
#
# CONFIG_TR is not set

#
# Wireless LAN (non-hamradio)
#
# CONFIG_NET_RADIO is not set

#
# Wan interfaces
#
# CONFIG_WAN is not set
# CONFIG_FDDI is not set
# CONFIG_HIPPI is not set
# CONFIG_PPP is not set
# CONFIG_SLIP is not set
# CONFIG_NET_FC is not set
# CONFIG_SHAPER is not set
# CONFIG_NETCONSOLE is not set
# CONFIG_NETPOLL is not set
# CONFIG_NET_POLL_CONTROLLER is not set

#
# ISDN subsystem
#
# CONFIG_ISDN is not set

#
# Telephony Support
#
# CONFIG_PHONE is not set

#
# Input device support
#
CONFIG_INPUT=y

#
# Userland interfaces
#
# CONFIG_INPUT_MOUSEDEV is not set
# CONFIG_INPUT_JOYDEV is not set
# CONFIG_INPUT_TSDEV is not set
# CONFIG_INPUT_EVDEV is not set
# CONFIG_INPUT_EVBUG is not set

#
# Input Device Drivers
#
CONFIG_INPUT_KEYBOARD=y
CONFIG_KEYBOARD_ATKBD=y
# CONFIG_KEYBOARD_SUNKBD is not set
# CONFIG_KEYBOARD_LKKBD is not set
# CONFIG_KEYBOARD_XTKBD is not set
# CONFIG_KEYBOARD_NEWTON is not set
# CONFIG_INPUT_MOUSE is not set
# CONFIG_INPUT_JOYSTICK is not set
# CONFIG_INPUT_TOUCHSCREEN is not set
# CONFIG_INPUT_MISC is not set

#
# Hardware I/O ports
#
CONFIG_SERIO=y
CONFIG_SERIO_I8042=y
# CONFIG_SERIO_SERPORT is not set
# CONFIG_SERIO_CT82C710 is not set
# CONFIG_SERIO_PCIPS2 is not set
CONFIG_SERIO_LIBPS2=y
# CONFIG_SERIO_RAW is not set
# CONFIG_GAMEPORT is not set

#
# Character devices
#
CONFIG_VT=y
CONFIG_VT_CONSOLE=y
CONFIG_HW_CONSOLE=y
# CONFIG_SERIAL_NONSTANDARD is not set

#
# Serial drivers
#
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_CONSOLE=y
# CONFIG_SERIAL_8250_ACPI is not set
CONFIG_SERIAL_8250_NR_UARTS=4
CONFIG_SERIAL_8250_RUNTIME_UARTS=4
CONFIG_SERIAL_8250_EXTENDED=y
# CONFIG_SERIAL_8250_MANY_PORTS is not set
CONFIG_SERIAL_8250_SHARE_IRQ=y
# CONFIG_SERIAL_8250_DETECT_IRQ is not set
# CONFIG_SERIAL_8250_RSA is not set

#
# Non-8250 serial port support
#
CONFIG_SERIAL_CORE=y
CONFIG_SERIAL_CORE_CONSOLE=y
# CONFIG_SERIAL_JSM is not set
CONFIG_UNIX98_PTYS=y
# CONFIG_LEGACY_PTYS is not set

#
# IPMI
#
# CONFIG_IPMI_HANDLER is not set

#
# Watchdog Cards
#
CONFIG_WATCHDOG=y
CONFIG_WATCHDOG_NOWAYOUT=y

#
# Watchdog Device Drivers
#
CONFIG_SOFT_WATCHDOG=m
# CONFIG_ACQUIRE_WDT is not set
# CONFIG_ADVANTECH_WDT is not set
# CONFIG_ALIM1535_WDT is not set
# CONFIG_ALIM7101_WDT is not set
# CONFIG_SC520_WDT is not set
# CONFIG_EUROTECH_WDT is not set
# CONFIG_IB700_WDT is not set
# CONFIG_IBMASR is not set
# CONFIG_WAFER_WDT is not set
# CONFIG_I6300ESB_WDT is not set
# CONFIG_I8XX_TCO is not set
# CONFIG_SC1200_WDT is not set
# CONFIG_60XX_WDT is not set
# CONFIG_SBC8360_WDT is not set
# CONFIG_CPU5_WDT is not set
# CONFIG_W83627HF_WDT is not set
# CONFIG_W83877F_WDT is not set
# CONFIG_W83977F_WDT is not set
# CONFIG_MACHZ_WDT is not set
# CONFIG_SBC_EPX_C3_WATCHDOG is not set

#
# PCI-based Watchdog Cards
#
# CONFIG_PCIPCWATCHDOG is not set
# CONFIG_WDTPCI is not set

#
# USB-based Watchdog Cards
#
# CONFIG_USBPCWATCHDOG is not set
CONFIG_HW_RANDOM=y
CONFIG_NVRAM=y
CONFIG_RTC=y
# CONFIG_DTLK is not set
# CONFIG_R3964 is not set
# CONFIG_APPLICOM is not set
# CONFIG_SONYPI is not set

#
# Ftape, the floppy tape device driver
#
# CONFIG_AGP is not set
# CONFIG_DRM is not set
# CONFIG_MWAVE is not set
# CONFIG_CS5535_GPIO is not set
# CONFIG_RAW_DRIVER is not set
# CONFIG_HPET is not set
# CONFIG_HANGCHECK_TIMER is not set

#
# TPM devices
#
# CONFIG_TCG_TPM is not set
# CONFIG_TELCLOCK is not set

#
# I2C support
#
CONFIG_I2C=y
CONFIG_I2C_CHARDEV=y

#
# I2C Algorithms
#
# CONFIG_I2C_ALGOBIT is not set
# CONFIG_I2C_ALGOPCF is not set
# CONFIG_I2C_ALGOPCA is not set

#
# I2C Hardware Bus support
#
# CONFIG_I2C_ALI1535 is not set
# CONFIG_I2C_ALI1563 is not set
# CONFIG_I2C_ALI15X3 is not set
# CONFIG_I2C_AMD756 is not set
# CONFIG_I2C_AMD8111 is not set
CONFIG_I2C_I801=y
# CONFIG_I2C_I810 is not set
# CONFIG_I2C_PIIX4 is not set
CONFIG_I2C_ISA=y
# CONFIG_I2C_NFORCE2 is not set
# CONFIG_I2C_PARPORT_LIGHT is not set
# CONFIG_I2C_PROSAVAGE is not set
# CONFIG_I2C_SAVAGE4 is not set
# CONFIG_SCx200_ACB is not set
# CONFIG_I2C_SIS5595 is not set
# CONFIG_I2C_SIS630 is not set
# CONFIG_I2C_SIS96X is not set
# CONFIG_I2C_STUB is not set
# CONFIG_I2C_VIA is not set
# CONFIG_I2C_VIAPRO is not set
# CONFIG_I2C_VOODOO3 is not set
# CONFIG_I2C_PCA_ISA is not set

#
# Miscellaneous I2C Chip support
#
# CONFIG_SENSORS_DS1337 is not set
# CONFIG_SENSORS_DS1374 is not set
# CONFIG_SENSORS_EEPROM is not set
# CONFIG_SENSORS_PCF8574 is not set
CONFIG_SENSORS_PCA9551=m
# CONFIG_SENSORS_PCA9539 is not set
# CONFIG_SENSORS_PCF8591 is not set
# CONFIG_SENSORS_RTC8564 is not set
# CONFIG_SENSORS_MAX6875 is not set
# CONFIG_RTC_X1205_I2C is not set
# CONFIG_I2C_DEBUG_CORE is not set
# CONFIG_I2C_DEBUG_ALGO is not set
# CONFIG_I2C_DEBUG_BUS is not set
# CONFIG_I2C_DEBUG_CHIP is not set

#
# SPI support
#
# CONFIG_SPI is not set
# CONFIG_SPI_MASTER is not set

#
# Dallas's 1-wire bus
#
# CONFIG_W1 is not set

#
# Hardware Monitoring support
#
CONFIG_HWMON=y
CONFIG_HWMON_VID=y
# CONFIG_SENSORS_ADM1021 is not set
# CONFIG_SENSORS_ADM1025 is not set
# CONFIG_SENSORS_ADM1026 is not set
# CONFIG_SENSORS_ADM1031 is not set
# CONFIG_SENSORS_ADM9240 is not set
# CONFIG_SENSORS_ASB100 is not set
# CONFIG_SENSORS_ATXP1 is not set
# CONFIG_SENSORS_DS1621 is not set
# CONFIG_SENSORS_F71805F is not set
# CONFIG_SENSORS_FSCHER is not set
# CONFIG_SENSORS_FSCPOS is not set
# CONFIG_SENSORS_GL518SM is not set
# CONFIG_SENSORS_GL520SM is not set
# CONFIG_SENSORS_IT87 is not set
# CONFIG_SENSORS_LM63 is not set
# CONFIG_SENSORS_LM75 is not set
# CONFIG_SENSORS_LM77 is not set
# CONFIG_SENSORS_LM78 is not set
# CONFIG_SENSORS_LM80 is not set
# CONFIG_SENSORS_LM83 is not set
# CONFIG_SENSORS_LM85 is not set
# CONFIG_SENSORS_LM87 is not set
# CONFIG_SENSORS_LM90 is not set
# CONFIG_SENSORS_LM92 is not set
# CONFIG_SENSORS_MAX1619 is not set
# CONFIG_SENSORS_PC87360 is not set
# CONFIG_SENSORS_SIS5595 is not set
# CONFIG_SENSORS_SMSC47M1 is not set
# CONFIG_SENSORS_SMSC47B397 is not set
# CONFIG_SENSORS_VIA686A is not set
# CONFIG_SENSORS_VT8231 is not set
# CONFIG_SENSORS_W83781D is not set
CONFIG_SENSORS_W83792D=m
# CONFIG_SENSORS_W83L785TS is not set
CONFIG_SENSORS_W83627HF=y
# CONFIG_SENSORS_W83627EHF is not set
# CONFIG_SENSORS_HDAPS is not set
# CONFIG_HWMON_DEBUG_CHIP is not set

#
# Misc devices
#
# CONFIG_IBM_ASM is not set

#
# Multimedia Capabilities Port drivers
#

#
# Multimedia devices
#
# CONFIG_VIDEO_DEV is not set

#
# Digital Video Broadcasting Devices
#
# CONFIG_DVB is not set

#
# Graphics support
#
# CONFIG_FB is not set
# CONFIG_VIDEO_SELECT is not set

#
# Console display driver support
#
CONFIG_VGA_CONSOLE=y
CONFIG_DUMMY_CONSOLE=y

#
# Sound
#
# CONFIG_SOUND is not set

#
# USB support
#
CONFIG_USB_ARCH_HAS_HCD=y
CONFIG_USB_ARCH_HAS_OHCI=y
CONFIG_USB=y
# CONFIG_USB_DEBUG is not set

#
# Miscellaneous USB options
#
CONFIG_USB_DEVICEFS=y
# CONFIG_USB_BANDWIDTH is not set
# CONFIG_USB_DYNAMIC_MINORS is not set
# CONFIG_USB_SUSPEND is not set
# CONFIG_USB_OTG is not set

#
# USB Host Controller Drivers
#
CONFIG_USB_EHCI_HCD=y
# CONFIG_USB_EHCI_SPLIT_ISO is not set
# CONFIG_USB_EHCI_ROOT_HUB_TT is not set
# CONFIG_USB_ISP116X_HCD is not set
# CONFIG_USB_OHCI_HCD is not set
# CONFIG_USB_UHCI_HCD is not set
# CONFIG_USB_SL811_HCD is not set

#
# USB Device Class drivers
#
# CONFIG_USB_ACM is not set
# CONFIG_USB_PRINTER is not set

#
# NOTE: USB_STORAGE enables SCSI, and 'SCSI disk support'
#

#
# may also be needed; see USB_STORAGE Help for more information
#
CONFIG_USB_STORAGE=y
# CONFIG_USB_STORAGE_DEBUG is not set
# CONFIG_USB_STORAGE_DATAFAB is not set
CONFIG_USB_STORAGE_FREECOM=y
# CONFIG_USB_STORAGE_DPCM is not set
# CONFIG_USB_STORAGE_USBAT is not set
# CONFIG_USB_STORAGE_SDDR09 is not set
# CONFIG_USB_STORAGE_SDDR55 is not set
# CONFIG_USB_STORAGE_JUMPSHOT is not set
# CONFIG_USB_STORAGE_ALAUDA is not set
CONFIG_USB_LIBUSUAL=y

#
# USB Input Devices
#
CONFIG_USB_HID=y
CONFIG_USB_HIDINPUT=y
# CONFIG_USB_HIDINPUT_POWERBOOK is not set
# CONFIG_HID_FF is not set
# CONFIG_USB_HIDDEV is not set
# CONFIG_USB_AIPTEK is not set
# CONFIG_USB_WACOM is not set
# CONFIG_USB_ACECAD is not set
# CONFIG_USB_KBTAB is not set
# CONFIG_USB_POWERMATE is not set
# CONFIG_USB_MTOUCH is not set
# CONFIG_USB_ITMTOUCH is not set
# CONFIG_USB_EGALAX is not set
# CONFIG_USB_YEALINK is not set
# CONFIG_USB_XPAD is not set
# CONFIG_USB_ATI_REMOTE is not set
# CONFIG_USB_ATI_REMOTE2 is not set
# CONFIG_USB_KEYSPAN_REMOTE is not set
# CONFIG_USB_APPLETOUCH is not set

#
# USB Imaging devices
#
# CONFIG_USB_MDC800 is not set
# CONFIG_USB_MICROTEK is not set

#
# USB Multimedia devices
#
# CONFIG_USB_DABUSB is not set

#
# Video4Linux support is needed for USB Multimedia device support
#

#
# USB Network Adapters
#
# CONFIG_USB_CATC is not set
# CONFIG_USB_KAWETH is not set
# CONFIG_USB_PEGASUS is not set
# CONFIG_USB_RTL8150 is not set
# CONFIG_USB_USBNET is not set
# CONFIG_USB_MON is not set

#
# USB port drivers
#

#
# USB Serial Converter support
#
# CONFIG_USB_SERIAL is not set

#
# USB Miscellaneous drivers
#
# CONFIG_USB_EMI62 is not set
# CONFIG_USB_EMI26 is not set
# CONFIG_USB_AUERSWALD is not set
# CONFIG_USB_RIO500 is not set
# CONFIG_USB_LEGOTOWER is not set
# CONFIG_USB_LCD is not set
# CONFIG_USB_LED is not set
# CONFIG_USB_CYTHERM is not set
# CONFIG_USB_PHIDGETKIT is not set
# CONFIG_USB_PHIDGETSERVO is not set
# CONFIG_USB_IDMOUSE is not set
# CONFIG_USB_SISUSBVGA is not set
# CONFIG_USB_LD is not set
# CONFIG_USB_TEST is not set

#
# USB DSL modem support
#

#
# USB Gadget Support
#
# CONFIG_USB_GADGET is not set

#
# MMC/SD Card support
#
# CONFIG_MMC is not set

#
# InfiniBand support
#
# CONFIG_INFINIBAND is not set

#
# EDAC - error detection and reporting (RAS) (EXPERIMENTAL)
#
CONFIG_EDAC=y

#
# Reporting subsystems
#
# CONFIG_EDAC_DEBUG is not set
CONFIG_EDAC_MM_EDAC=y
# CONFIG_EDAC_AMD76X is not set
# CONFIG_EDAC_E7XXX is not set
CONFIG_EDAC_E752X=y
# CONFIG_EDAC_I82875P is not set
# CONFIG_EDAC_I82860 is not set
# CONFIG_EDAC_R82600 is not set
CONFIG_EDAC_POLL=y

#
# File systems
#
CONFIG_EXT2_FS=y
CONFIG_EXT2_FS_XATTR=y
CONFIG_EXT2_FS_POSIX_ACL=y
# CONFIG_EXT2_FS_SECURITY is not set
# CONFIG_EXT2_FS_XIP is not set
CONFIG_EXT3_FS=y
CONFIG_EXT3_FS_XATTR=y
CONFIG_EXT3_FS_POSIX_ACL=y
# CONFIG_EXT3_FS_SECURITY is not set
CONFIG_JBD=y
# CONFIG_JBD_DEBUG is not set
CONFIG_FS_MBCACHE=y
# CONFIG_REISERFS_FS is not set
# CONFIG_JFS_FS is not set
CONFIG_FS_POSIX_ACL=y
# CONFIG_XFS_FS is not set
# CONFIG_OCFS2_FS is not set
# CONFIG_MINIX_FS is not set
# CONFIG_ROMFS_FS is not set
# CONFIG_INOTIFY is not set
# CONFIG_QUOTA is not set
# CONFIG_DNOTIFY is not set
# CONFIG_AUTOFS_FS is not set
# CONFIG_AUTOFS4_FS is not set
# CONFIG_FUSE_FS is not set

#
# CD-ROM/DVD Filesystems
#
CONFIG_ISO9660_FS=y
CONFIG_JOLIET=y
# CONFIG_ZISOFS is not set
# CONFIG_UDF_FS is not set

#
# DOS/FAT/NT Filesystems
#
CONFIG_FAT_FS=y
CONFIG_MSDOS_FS=y
CONFIG_VFAT_FS=y
CONFIG_FAT_DEFAULT_CODEPAGE=437
CONFIG_FAT_DEFAULT_IOCHARSET="iso8859-1"
# CONFIG_NTFS_FS is not set

#
# Pseudo filesystems
#
CONFIG_PROC_FS=y
# CONFIG_PROC_KCORE is not set
CONFIG_SYSFS=y
CONFIG_TMPFS=y
CONFIG_HUGETLBFS=y
CONFIG_HUGETLB_PAGE=y
CONFIG_RAMFS=y
CONFIG_RELAYFS_FS=y
# CONFIG_CONFIGFS_FS is not set

#
# Miscellaneous filesystems
#
# CONFIG_ADFS_FS is not set
# CONFIG_AFFS_FS is not set
# CONFIG_HFS_FS is not set
# CONFIG_HFSPLUS_FS is not set
# CONFIG_BEFS_FS is not set
# CONFIG_BFS_FS is not set
# CONFIG_EFS_FS is not set
# CONFIG_CRAMFS is not set
# CONFIG_VXFS_FS is not set
# CONFIG_HPFS_FS is not set
# CONFIG_QNX4FS_FS is not set
# CONFIG_SYSV_FS is not set
# CONFIG_UFS_FS is not set

#
# Network File Systems
#
CONFIG_NFS_FS=y
CONFIG_NFS_V3=y
# CONFIG_NFS_V3_ACL is not set
# CONFIG_NFS_V4 is not set
# CONFIG_NFS_DIRECTIO is not set
# CONFIG_NFSD is not set
CONFIG_LOCKD=y
CONFIG_LOCKD_V4=y
CONFIG_NFS_COMMON=y
CONFIG_SUNRPC=y
# CONFIG_RPCSEC_GSS_KRB5 is not set
# CONFIG_RPCSEC_GSS_SPKM3 is not set
# CONFIG_SMB_FS is not set
# CONFIG_CIFS is not set
# CONFIG_NCP_FS is not set
# CONFIG_CODA_FS is not set
# CONFIG_AFS_FS is not set
# CONFIG_9P_FS is not set

#
# Partition Types
#
# CONFIG_PARTITION_ADVANCED is not set
CONFIG_MSDOS_PARTITION=y

#
# Native Language Support
#
CONFIG_NLS=y
CONFIG_NLS_DEFAULT="UTF-8"
CONFIG_NLS_CODEPAGE_437=y
# CONFIG_NLS_CODEPAGE_737 is not set
# CONFIG_NLS_CODEPAGE_775 is not set
# CONFIG_NLS_CODEPAGE_850 is not set
# CONFIG_NLS_CODEPAGE_852 is not set
# CONFIG_NLS_CODEPAGE_855 is not set
# CONFIG_NLS_CODEPAGE_857 is not set
# CONFIG_NLS_CODEPAGE_860 is not set
# CONFIG_NLS_CODEPAGE_861 is not set
# CONFIG_NLS_CODEPAGE_862 is not set
# CONFIG_NLS_CODEPAGE_863 is not set
# CONFIG_NLS_CODEPAGE_864 is not set
# CONFIG_NLS_CODEPAGE_865 is not set
# CONFIG_NLS_CODEPAGE_866 is not set
# CONFIG_NLS_CODEPAGE_869 is not set
# CONFIG_NLS_CODEPAGE_936 is not set
# CONFIG_NLS_CODEPAGE_950 is not set
# CONFIG_NLS_CODEPAGE_932 is not set
# CONFIG_NLS_CODEPAGE_949 is not set
# CONFIG_NLS_CODEPAGE_874 is not set
# CONFIG_NLS_ISO8859_8 is not set
# CONFIG_NLS_CODEPAGE_1250 is not set
# CONFIG_NLS_CODEPAGE_1251 is not set
CONFIG_NLS_ASCII=y
CONFIG_NLS_ISO8859_1=y
# CONFIG_NLS_ISO8859_2 is not set
# CONFIG_NLS_ISO8859_3 is not set
# CONFIG_NLS_ISO8859_4 is not set
# CONFIG_NLS_ISO8859_5 is not set
# CONFIG_NLS_ISO8859_6 is not set
# CONFIG_NLS_ISO8859_7 is not set
# CONFIG_NLS_ISO8859_9 is not set
# CONFIG_NLS_ISO8859_13 is not set
# CONFIG_NLS_ISO8859_14 is not set
CONFIG_NLS_ISO8859_15=y
# CONFIG_NLS_KOI8_R is not set
# CONFIG_NLS_KOI8_U is not set
CONFIG_NLS_UTF8=y

#
# Instrumentation Support
#
# CONFIG_PROFILING is not set
# CONFIG_KPROBES is not set

#
# Kernel hacking
#
# CONFIG_PRINTK_TIME is not set
CONFIG_MAGIC_SYSRQ=y
CONFIG_DEBUG_KERNEL=y
CONFIG_LOG_BUF_SHIFT=16
CONFIG_DETECT_SOFTLOCKUP=y
# CONFIG_SCHEDSTATS is not set
CONFIG_DEBUG_SLAB=y
# CONFIG_DEBUG_PREEMPT is not set
CONFIG_DEBUG_MUTEXES=y
CONFIG_DEBUG_SPINLOCK=y
CONFIG_DEBUG_SPINLOCK_SLEEP=y
# CONFIG_DEBUG_KOBJECT is not set
CONFIG_DEBUG_BUGVERBOSE=y
# CONFIG_DEBUG_INFO is not set
# CONFIG_DEBUG_FS is not set
CONFIG_DEBUG_VM=y
# CONFIG_FRAME_POINTER is not set
CONFIG_FORCED_INLINING=y
# CONFIG_RCU_TORTURE_TEST is not set
CONFIG_EARLY_PRINTK=y
CONFIG_DEBUG_STACKOVERFLOW=y
# CONFIG_DEBUG_STACK_USAGE is not set
CONFIG_DEBUG_PAGEALLOC=y
# CONFIG_DEBUG_RODATA is not set
CONFIG_4KSTACKS=y
CONFIG_X86_FIND_SMP_CONFIG=y
CONFIG_X86_MPPARSE=y

#
# Security options
#
# CONFIG_KEYS is not set
# CONFIG_SECURITY is not set

#
# Cryptographic options
#
CONFIG_CRYPTO=y
# CONFIG_CRYPTO_HMAC is not set
# CONFIG_CRYPTO_NULL is not set
# CONFIG_CRYPTO_MD4 is not set
CONFIG_CRYPTO_MD5=y
# CONFIG_CRYPTO_SHA1 is not set
# CONFIG_CRYPTO_SHA256 is not set
# CONFIG_CRYPTO_SHA512 is not set
# CONFIG_CRYPTO_WP512 is not set
# CONFIG_CRYPTO_TGR192 is not set
# CONFIG_CRYPTO_DES is not set
# CONFIG_CRYPTO_BLOWFISH is not set
# CONFIG_CRYPTO_TWOFISH is not set
# CONFIG_CRYPTO_SERPENT is not set
# CONFIG_CRYPTO_AES is not set
# CONFIG_CRYPTO_AES_586 is not set
# CONFIG_CRYPTO_CAST5 is not set
# CONFIG_CRYPTO_CAST6 is not set
# CONFIG_CRYPTO_TEA is not set
# CONFIG_CRYPTO_ARC4 is not set
# CONFIG_CRYPTO_KHAZAD is not set
# CONFIG_CRYPTO_ANUBIS is not set
# CONFIG_CRYPTO_DEFLATE is not set
# CONFIG_CRYPTO_MICHAEL_MIC is not set
CONFIG_CRYPTO_CRC32C=y
# CONFIG_CRYPTO_TEST is not set

#
# Hardware crypto devices
#
# CONFIG_CRYPTO_DEV_PADLOCK is not set

#
# Library routines
#
# CONFIG_CRC_CCITT is not set
# CONFIG_CRC16 is not set
CONFIG_CRC32=y
CONFIG_LIBCRC32C=y
CONFIG_GENERIC_HARDIRQS=y
CONFIG_GENERIC_IRQ_PROBE=y
CONFIG_GENERIC_PENDING_IRQ=y
CONFIG_X86_SMP=y
CONFIG_X86_HT=y
CONFIG_X86_BIOS_REBOOT=y
CONFIG_X86_TRAMPOLINE=y
CONFIG_KTIME_SCALAR=y

--
Mark Rustad, [email protected]

2006-03-23 19:13:50

by Mark Rustad

[permalink] [raw]
Subject: Re: 2.6.16 hugetlbfs problem

On Mar 23, 2006, at 9:36 AM, Mark Rustad wrote:

> On Mar 22, 2006, at 11:43 PM, Chen, Kenneth W wrote:
>
>> Mark Rustad wrote on Wednesday, March 22, 2006 3:33 PM
>>>>> I seem to be having trouble using hugetlbfs with kernel 2.6.16. I
>>>>> have a small test program that worked with 2.6.16-rc5, but
>>>>> fails with
>>>>> 2.6.16-rc6 or the release. The program is below. Given a path to a
>>>>> file on a hugetlbfs, it opens/creates the file, mmaps it and
>>>>> tries to
>>>>> access the first word. On 2.6.16-rc5, it works. On 2.6.16, it
>>>>> hangs
>>>>> page-faulting until it is killed.
>>>>
>>>> On what platform? Things like hugetlb and address space layout
>>>> (you're requesting a specific mmap() address I noticed) are very
>>>> platform specific.
>>>
>>> This is on a Xeon, without PAE with the 1GB no-highmem memory
>>> map, in
>>> all three cases. This is a 32-bit kernel running on a Nacona CPU. I
>>> also had an unmap call over the range to be mmap-ed, but the
>>> failure/
>>> success cases were the same, so I removed it to reduce the test
>>> program further.
>>
>> It might be something else happening in your environment. I ran
>> your test
>> code on a similar system. It ran just fine.
>
> Perhaps. I have tried more stuff here, but still no joy. I have put
> my kernel configuration below. You will see that it is a mostly-
> monolithic kernel. It is weird that it works with 2.6.16-rc5, but
> not later. I looked at the incremental patch but nothing jumped out
> at me, but I am not a vm wizard. I will look again.

It appears that this problem is configuration-related. By turning off
the kernel debugging options that I had on, things started working. I
have not yet isolated which of the options being enabled is causing
the problem, but there was no noise in the kernel log when they were
enabled and I was experiencing the problem. I will post more after I
know more.

The kernel version was a red herring. I had turned on the kernel
debugging options between the two builds. I had just mistakenly
associated the failure with the update and had forgotten the
debugging options that I had added when I configured the new kernel.
I had turned them to just look more carefully for general trouble. No
good deed goes unpunished. :-)

> #
> # Automatically generated make config: don't edit
> # Linux kernel version: 2.6.16-0a
> # Mon Mar 20 12:42:24 2006
> #
> CONFIG_X86_32=y
> CONFIG_SEMAPHORE_SLEEPERS=y
> CONFIG_X86=y
> CONFIG_MMU=y
> CONFIG_GENERIC_ISA_DMA=y
> CONFIG_GENERIC_IOMAP=y
> CONFIG_ARCH_MAY_HAVE_PC_FDC=y
> CONFIG_DMI=y
>
> #
> # Code maturity level options
> #
> CONFIG_EXPERIMENTAL=y
> CONFIG_LOCK_KERNEL=y
> CONFIG_INIT_ENV_ARG_LIMIT=32
>
> #
> # General setup
> #
> CONFIG_LOCALVERSION=""
> # CONFIG_LOCALVERSION_AUTO is not set
> CONFIG_SWAP=y
> # CONFIG_SYSVIPC is not set
> # CONFIG_POSIX_MQUEUE is not set
> # CONFIG_BSD_PROCESS_ACCT is not set
> CONFIG_SYSCTL=y
> # CONFIG_AUDIT is not set
> # CONFIG_IKCONFIG is not set
> # CONFIG_CPUSETS is not set
> CONFIG_INITRAMFS_SOURCE=""
> # CONFIG_UID16 is not set
> # CONFIG_VM86 is not set
> # CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
> CONFIG_EMBEDDED=y
> CONFIG_KALLSYMS=y
> CONFIG_KALLSYMS_ALL=y
> # CONFIG_KALLSYMS_EXTRA_PASS is not set
> CONFIG_HOTPLUG=y
> CONFIG_PRINTK=y
> CONFIG_BUG=y
> CONFIG_ELF_CORE=y
> CONFIG_BASE_FULL=y
> CONFIG_FUTEX=y
> CONFIG_EPOLL=y
> CONFIG_SHMEM=y
> CONFIG_CC_ALIGN_FUNCTIONS=0
> CONFIG_CC_ALIGN_LABELS=0
> CONFIG_CC_ALIGN_LOOPS=0
> CONFIG_CC_ALIGN_JUMPS=0
> CONFIG_SLAB=y
> # CONFIG_TINY_SHMEM is not set
> CONFIG_BASE_SMALL=0
> # CONFIG_SLOB is not set
>
> #
> # Loadable module support
> #
> CONFIG_MODULES=y
> CONFIG_MODULE_UNLOAD=y
> CONFIG_MODULE_FORCE_UNLOAD=y
> CONFIG_OBSOLETE_MODPARM=y
> # CONFIG_MODVERSIONS is not set
> # CONFIG_MODULE_SRCVERSION_ALL is not set
> # CONFIG_KMOD is not set
> CONFIG_STOP_MACHINE=y
>
> #
> # Block layer
> #
> CONFIG_LBD=y
>
> #
> # IO Schedulers
> #
> CONFIG_IOSCHED_NOOP=y
> # CONFIG_IOSCHED_AS is not set
> # CONFIG_IOSCHED_DEADLINE is not set
> # CONFIG_IOSCHED_CFQ is not set
> # CONFIG_DEFAULT_AS is not set
> # CONFIG_DEFAULT_DEADLINE is not set
> # CONFIG_DEFAULT_CFQ is not set
> CONFIG_DEFAULT_NOOP=y
> CONFIG_DEFAULT_IOSCHED="noop"
>
> #
> # Processor type and features
> #
> # CONFIG_X86_PC is not set
> # CONFIG_X86_ELAN is not set
> # CONFIG_X86_VOYAGER is not set
> # CONFIG_X86_NUMAQ is not set
> # CONFIG_X86_SUMMIT is not set
> # CONFIG_X86_BIGSMP is not set
> # CONFIG_X86_VISWS is not set
> CONFIG_X86_GENERICARCH=y
> # CONFIG_X86_ES7000 is not set
> CONFIG_X86_CYCLONE_TIMER=y
> # CONFIG_M386 is not set
> # CONFIG_M486 is not set
> # CONFIG_M586 is not set
> # CONFIG_M586TSC is not set
> # CONFIG_M586MMX is not set
> # CONFIG_M686 is not set
> # CONFIG_MPENTIUMII is not set
> # CONFIG_MPENTIUMIII is not set
> # CONFIG_MPENTIUMM is not set
> CONFIG_MPENTIUM4=y
> # CONFIG_MK6 is not set
> # CONFIG_MK7 is not set
> # CONFIG_MK8 is not set
> # CONFIG_MCRUSOE is not set
> # CONFIG_MEFFICEON is not set
> # CONFIG_MWINCHIPC6 is not set
> # CONFIG_MWINCHIP2 is not set
> # CONFIG_MWINCHIP3D is not set
> # CONFIG_MGEODEGX1 is not set
> # CONFIG_MGEODE_LX is not set
> # CONFIG_MCYRIXIII is not set
> # CONFIG_MVIAC3_2 is not set
> # CONFIG_X86_GENERIC is not set
> CONFIG_X86_CMPXCHG=y
> CONFIG_X86_XADD=y
> CONFIG_X86_L1_CACHE_SHIFT=7
> CONFIG_RWSEM_XCHGADD_ALGORITHM=y
> CONFIG_GENERIC_CALIBRATE_DELAY=y
> CONFIG_X86_WP_WORKS_OK=y
> CONFIG_X86_INVLPG=y
> CONFIG_X86_BSWAP=y
> CONFIG_X86_POPAD_OK=y
> CONFIG_X86_CMPXCHG64=y
> CONFIG_X86_GOOD_APIC=y
> CONFIG_X86_INTEL_USERCOPY=y
> CONFIG_X86_USE_PPRO_CHECKSUM=y
> CONFIG_X86_TSC=y
> CONFIG_HPET_TIMER=y
> CONFIG_HPET_EMULATE_RTC=y
> CONFIG_SMP=y
> CONFIG_NR_CPUS=2
> # CONFIG_SCHED_SMT is not set
> # CONFIG_PREEMPT_NONE is not set
> # CONFIG_PREEMPT_VOLUNTARY is not set
> CONFIG_PREEMPT=y
> CONFIG_PREEMPT_BKL=y
> CONFIG_X86_LOCAL_APIC=y
> CONFIG_X86_IO_APIC=y
> CONFIG_X86_MCE=y
> CONFIG_X86_MCE_NONFATAL=y
> CONFIG_X86_MCE_P4THERMAL=y
> # CONFIG_TOSHIBA is not set
> # CONFIG_I8K is not set
> # CONFIG_X86_REBOOTFIXUPS is not set
> CONFIG_MICROCODE=y
> CONFIG_X86_MSR=y
> CONFIG_X86_CPUID=y
>
> #
> # Firmware Drivers
> #
> CONFIG_EDD=y
> # CONFIG_DELL_RBU is not set
> # CONFIG_DCDBAS is not set
> CONFIG_NOHIGHMEM=y
> # CONFIG_HIGHMEM4G is not set
> # CONFIG_HIGHMEM64G is not set
> # CONFIG_VMSPLIT_3G is not set
> CONFIG_VMSPLIT_3G_OPT=y
> # CONFIG_VMSPLIT_2G is not set
> # CONFIG_VMSPLIT_1G is not set
> CONFIG_PAGE_OFFSET=0xB0000000
> CONFIG_SELECT_MEMORY_MODEL=y
> CONFIG_FLATMEM_MANUAL=y
> # CONFIG_DISCONTIGMEM_MANUAL is not set
> # CONFIG_SPARSEMEM_MANUAL is not set
> CONFIG_FLATMEM=y
> CONFIG_FLAT_NODE_MEM_MAP=y
> # CONFIG_SPARSEMEM_STATIC is not set
> CONFIG_SPLIT_PTLOCK_CPUS=4
> # CONFIG_MATH_EMULATION is not set
> CONFIG_MTRR=y
> # CONFIG_EFI is not set
> # CONFIG_IRQBALANCE is not set
> CONFIG_REGPARM=y
> # CONFIG_SECCOMP is not set
> # CONFIG_HZ_100 is not set
> CONFIG_HZ_250=y
> # CONFIG_HZ_1000 is not set
> CONFIG_HZ=250
> # CONFIG_KEXEC is not set
> CONFIG_PHYSICAL_START=0x100000
> # CONFIG_HOTPLUG_CPU is not set
> CONFIG_DOUBLEFAULT=y
>
> #
> # Power management options (ACPI, APM)
> #
> CONFIG_PM=y
> # CONFIG_PM_LEGACY is not set
> # CONFIG_PM_DEBUG is not set
>
> #
> # ACPI (Advanced Configuration and Power Interface) Support
> #
> CONFIG_ACPI=y
> # CONFIG_ACPI_AC is not set
> # CONFIG_ACPI_BATTERY is not set
> CONFIG_ACPI_BUTTON=y
> # CONFIG_ACPI_VIDEO is not set
> # CONFIG_ACPI_HOTKEY is not set
> CONFIG_ACPI_FAN=y
> CONFIG_ACPI_PROCESSOR=y
> CONFIG_ACPI_THERMAL=y
> # CONFIG_ACPI_ASUS is not set
> # CONFIG_ACPI_IBM is not set
> # CONFIG_ACPI_TOSHIBA is not set
> CONFIG_ACPI_BLACKLIST_YEAR=0
> # CONFIG_ACPI_DEBUG is not set
> CONFIG_ACPI_EC=y
> CONFIG_ACPI_POWER=y
> CONFIG_ACPI_SYSTEM=y
> # CONFIG_X86_PM_TIMER is not set
> # CONFIG_ACPI_CONTAINER is not set
>
> #
> # APM (Advanced Power Management) BIOS Support
> #
> # CONFIG_APM is not set
>
> #
> # CPU Frequency scaling
> #
> CONFIG_CPU_FREQ=y
> CONFIG_CPU_FREQ_TABLE=y
> # CONFIG_CPU_FREQ_DEBUG is not set
> CONFIG_CPU_FREQ_STAT=y
> # CONFIG_CPU_FREQ_STAT_DETAILS is not set
> CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE=y
> # CONFIG_CPU_FREQ_DEFAULT_GOV_USERSPACE is not set
> CONFIG_CPU_FREQ_GOV_PERFORMANCE=y
> # CONFIG_CPU_FREQ_GOV_POWERSAVE is not set
> # CONFIG_CPU_FREQ_GOV_USERSPACE is not set
> # CONFIG_CPU_FREQ_GOV_ONDEMAND is not set
> # CONFIG_CPU_FREQ_GOV_CONSERVATIVE is not set
>
> #
> # CPUFreq processor drivers
> #
> # CONFIG_X86_ACPI_CPUFREQ is not set
> # CONFIG_X86_POWERNOW_K6 is not set
> # CONFIG_X86_POWERNOW_K7 is not set
> # CONFIG_X86_POWERNOW_K8 is not set
> # CONFIG_X86_GX_SUSPMOD is not set
> CONFIG_X86_SPEEDSTEP_CENTRINO=y
> CONFIG_X86_SPEEDSTEP_CENTRINO_ACPI=y
> CONFIG_X86_SPEEDSTEP_CENTRINO_TABLE=y
> # CONFIG_X86_SPEEDSTEP_ICH is not set
> # CONFIG_X86_SPEEDSTEP_SMI is not set
> CONFIG_X86_P4_CLOCKMOD=y
> # CONFIG_X86_CPUFREQ_NFORCE2 is not set
> # CONFIG_X86_LONGRUN is not set
> # CONFIG_X86_LONGHAUL is not set
>
> #
> # shared options
> #
> # CONFIG_X86_ACPI_CPUFREQ_PROC_INTF is not set
> CONFIG_X86_SPEEDSTEP_LIB=y
>
> #
> # Bus options (PCI, PCMCIA, EISA, MCA, ISA)
> #
> CONFIG_PCI=y
> # CONFIG_PCI_GOBIOS is not set
> # CONFIG_PCI_GOMMCONFIG is not set
> # CONFIG_PCI_GODIRECT is not set
> CONFIG_PCI_GOANY=y
> CONFIG_PCI_BIOS=y
> CONFIG_PCI_DIRECT=y
> CONFIG_PCI_MMCONFIG=y
> # CONFIG_PCIEPORTBUS is not set
> # CONFIG_PCI_MSI is not set
> # CONFIG_PCI_LEGACY_PROC is not set
> # CONFIG_PCI_DEBUG is not set
> CONFIG_ISA_DMA_API=y
> # CONFIG_ISA is not set
> # CONFIG_MCA is not set
> # CONFIG_SCx200 is not set
>
> #
> # PCCARD (PCMCIA/CardBus) support
> #
> # CONFIG_PCCARD is not set
>
> #
> # PCI Hotplug Support
> #
> # CONFIG_HOTPLUG_PCI is not set
>
> #
> # Executable file formats
> #
> CONFIG_BINFMT_ELF=y
> # CONFIG_BINFMT_AOUT is not set
> CONFIG_BINFMT_MISC=y
>
> #
> # Networking
> #
> CONFIG_NET=y
>
> #
> # Networking options
> #
> # CONFIG_NETDEBUG is not set
> CONFIG_PACKET=y
> CONFIG_PACKET_MMAP=y
> CONFIG_UNIX=y
> # CONFIG_NET_KEY is not set
> CONFIG_INET=y
> CONFIG_IP_MULTICAST=y
> CONFIG_IP_ADVANCED_ROUTER=y
> CONFIG_ASK_IP_FIB_HASH=y
> # CONFIG_IP_FIB_TRIE is not set
> CONFIG_IP_FIB_HASH=y
> CONFIG_IP_MULTIPLE_TABLES=y
> # CONFIG_IP_ROUTE_MULTIPATH is not set
> # CONFIG_IP_ROUTE_VERBOSE is not set
> # CONFIG_IP_PNP is not set
> # CONFIG_NET_IPIP is not set
> # CONFIG_NET_IPGRE is not set
> # CONFIG_IP_MROUTE is not set
> # CONFIG_ARPD is not set
> # CONFIG_SYN_COOKIES is not set
> # CONFIG_INET_AH is not set
> # CONFIG_INET_ESP is not set
> # CONFIG_INET_IPCOMP is not set
> # CONFIG_INET_TUNNEL is not set
> CONFIG_INET_DIAG=y
> CONFIG_INET_TCP_DIAG=y
> # CONFIG_TCP_CONG_ADVANCED is not set
> CONFIG_TCP_CONG_BIC=y
> CONFIG_IPV6=y
> # CONFIG_IPV6_PRIVACY is not set
> # CONFIG_INET6_AH is not set
> # CONFIG_INET6_ESP is not set
> # CONFIG_INET6_IPCOMP is not set
> # CONFIG_INET6_TUNNEL is not set
> # CONFIG_IPV6_TUNNEL is not set
> # CONFIG_NETFILTER is not set
>
> #
> # DCCP Configuration (EXPERIMENTAL)
> #
> # CONFIG_IP_DCCP is not set
>
> #
> # SCTP Configuration (EXPERIMENTAL)
> #
> # CONFIG_IP_SCTP is not set
>
> #
> # TIPC Configuration (EXPERIMENTAL)
> #
> # CONFIG_TIPC is not set
> # CONFIG_ATM is not set
> # CONFIG_BRIDGE is not set
> # CONFIG_VLAN_8021Q is not set
> # CONFIG_DECNET is not set
> # CONFIG_LLC2 is not set
> # CONFIG_IPX is not set
> # CONFIG_ATALK is not set
> # CONFIG_X25 is not set
> # CONFIG_LAPB is not set
> # CONFIG_NET_DIVERT is not set
> # CONFIG_ECONET is not set
> # CONFIG_WAN_ROUTER is not set
>
> #
> # QoS and/or fair queueing
> #
> # CONFIG_NET_SCHED is not set
>
> #
> # Network testing
> #
> # CONFIG_NET_PKTGEN is not set
> # CONFIG_HAMRADIO is not set
> # CONFIG_IRDA is not set
> # CONFIG_BT is not set
> # CONFIG_IEEE80211 is not set
>
> #
> # Device Drivers
> #
>
> #
> # Generic Driver Options
> #
> CONFIG_STANDALONE=y
> CONFIG_PREVENT_FIRMWARE_BUILD=y
> # CONFIG_FW_LOADER is not set
> # CONFIG_DEBUG_DRIVER is not set
>
> #
> # Connector - unified userspace <-> kernelspace linker
> #
> # CONFIG_CONNECTOR is not set
>
> #
> # Memory Technology Devices (MTD)
> #
> # CONFIG_MTD is not set
>
> #
> # Parallel port support
> #
> # CONFIG_PARPORT is not set
>
> #
> # Plug and Play support
> #
> # CONFIG_PNP is not set
>
> #
> # Block devices
> #
> # CONFIG_BLK_DEV_FD is not set
> # CONFIG_BLK_CPQ_DA is not set
> # CONFIG_BLK_CPQ_CISS_DA is not set
> # CONFIG_BLK_DEV_DAC960 is not set
> # CONFIG_BLK_DEV_UMEM is not set
> # CONFIG_BLK_DEV_COW_COMMON is not set
> CONFIG_BLK_DEV_LOOP=y
> # CONFIG_BLK_DEV_CRYPTOLOOP is not set
> # CONFIG_BLK_DEV_NBD is not set
> # CONFIG_BLK_DEV_SX8 is not set
> # CONFIG_BLK_DEV_UB is not set
> CONFIG_BLK_DEV_RAM=y
> CONFIG_BLK_DEV_RAM_COUNT=8
> CONFIG_BLK_DEV_RAM_SIZE=8192
> CONFIG_BLK_DEV_INITRD=y
> # CONFIG_CDROM_PKTCDVD is not set
> # CONFIG_ATA_OVER_ETH is not set
>
> #
> # ATA/ATAPI/MFM/RLL support
> #
> # CONFIG_IDE is not set
>
> #
> # SCSI device support
> #
> # CONFIG_RAID_ATTRS is not set
> CONFIG_SCSI=y
> CONFIG_SCSI_PROC_FS=y
>
> #
> # SCSI support type (disk, tape, CD-ROM)
> #
> CONFIG_BLK_DEV_SD=y
> # CONFIG_CHR_DEV_ST is not set
> # CONFIG_CHR_DEV_OSST is not set
> CONFIG_BLK_DEV_SR=y
> # CONFIG_BLK_DEV_SR_VENDOR is not set
> CONFIG_CHR_DEV_SG=y
> # CONFIG_CHR_DEV_SCH is not set
>
> #
> # Some SCSI devices (e.g. CD jukebox) support multiple LUNs
> #
> # CONFIG_SCSI_MULTI_LUN is not set
> # CONFIG_SCSI_CONSTANTS is not set
> CONFIG_SCSI_LOGGING=y
>
> #
> # SCSI Transport Attributes
> #
> # CONFIG_SCSI_SPI_ATTRS is not set
> # CONFIG_SCSI_FC_ATTRS is not set
> CONFIG_SCSI_ISCSI_ATTRS=y
> # CONFIG_SCSI_SAS_ATTRS is not set
>
> #
> # SCSI Transport Layers
> #
> CONFIG_SAS_CLASS=y
> CONFIG_SAS_DEBUG=y
>
> #
> # SCSI low-level drivers
> #
> CONFIG_ISCSI_TCP=m
> # CONFIG_BLK_DEV_3W_XXXX_RAID is not set
> # CONFIG_SCSI_3W_9XXX is not set
> # CONFIG_SCSI_ACARD is not set
> # CONFIG_SCSI_AACRAID is not set
> CONFIG_SCSI_AIC94XX=m
> CONFIG_AIC94XX_DEBUG=y
> # CONFIG_SCSI_AIC7XXX is not set
> # CONFIG_SCSI_AIC7XXX_OLD is not set
> # CONFIG_SCSI_AIC79XX is not set
> # CONFIG_SCSI_DPT_I2O is not set
> # CONFIG_MEGARAID_NEWGEN is not set
> # CONFIG_MEGARAID_LEGACY is not set
> # CONFIG_MEGARAID_SAS is not set
> CONFIG_SCSI_SATA=y
> # CONFIG_SCSI_SATA_AHCI is not set
> # CONFIG_SCSI_SATA_SVW is not set
> # CONFIG_SCSI_ATA_PIIX is not set
> # CONFIG_SCSI_SATA_MV is not set
> # CONFIG_SCSI_SATA_NV is not set
> # CONFIG_SCSI_PDC_ADMA is not set
> # CONFIG_SCSI_SATA_QSTOR is not set
> # CONFIG_SCSI_SATA_PROMISE is not set
> # CONFIG_SCSI_SATA_SX4 is not set
> # CONFIG_SCSI_SATA_SIL is not set
> # CONFIG_SCSI_SATA_SIL24 is not set
> # CONFIG_SCSI_SATA_SIS is not set
> # CONFIG_SCSI_SATA_ULI is not set
> # CONFIG_SCSI_SATA_VIA is not set
> # CONFIG_SCSI_SATA_VITESSE is not set
> # CONFIG_SCSI_BUSLOGIC is not set
> # CONFIG_SCSI_DMX3191D is not set
> # CONFIG_SCSI_EATA is not set
> # CONFIG_SCSI_FUTURE_DOMAIN is not set
> # CONFIG_SCSI_GDTH is not set
> # CONFIG_SCSI_IPS is not set
> # CONFIG_SCSI_INITIO is not set
> # CONFIG_SCSI_INIA100 is not set
> # CONFIG_SCSI_SYM53C8XX_2 is not set
> # CONFIG_SCSI_IPR is not set
> # CONFIG_SCSI_QLOGIC_FC is not set
> # CONFIG_SCSI_QLOGIC_1280 is not set
> # CONFIG_SCSI_QLA_FC is not set
> # CONFIG_SCSI_LPFC is not set
> # CONFIG_SCSI_DC395x is not set
> # CONFIG_SCSI_DC390T is not set
> # CONFIG_SCSI_NSP32 is not set
> # CONFIG_SCSI_DEBUG is not set
>
> #
> # Multi-device support (RAID and LVM)
> #
> # CONFIG_MD is not set
>
> #
> # Fusion MPT device support
> #
> # CONFIG_FUSION is not set
> # CONFIG_FUSION_SPI is not set
> # CONFIG_FUSION_FC is not set
> # CONFIG_FUSION_SAS is not set
>
> #
> # IEEE 1394 (FireWire) support
> #
> # CONFIG_IEEE1394 is not set
>
> #
> # I2O device support
> #
> # CONFIG_I2O is not set
>
> #
> # Network device support
> #
> CONFIG_NETDEVICES=y
> # CONFIG_DUMMY is not set
> # CONFIG_BONDING is not set
> # CONFIG_EQUALIZER is not set
> # CONFIG_TUN is not set
>
> #
> # ARCnet devices
> #
> # CONFIG_ARCNET is not set
>
> #
> # PHY device support
> #
>
> #
> # Ethernet (10 or 100Mbit)
> #
> # CONFIG_NET_ETHERNET is not set
>
> #
> # Ethernet (1000 Mbit)
> #
> # CONFIG_ACENIC is not set
> # CONFIG_DL2K is not set
> CONFIG_E1000=y
> CONFIG_E1000_NAPI=y
> # CONFIG_E1000_DISABLE_PACKET_SPLIT is not set
> # CONFIG_NS83820 is not set
> # CONFIG_HAMACHI is not set
> # CONFIG_YELLOWFIN is not set
> # CONFIG_R8169 is not set
> # CONFIG_SIS190 is not set
> # CONFIG_SKGE is not set
> # CONFIG_SKY2 is not set
> # CONFIG_SK98LIN is not set
> # CONFIG_TIGON3 is not set
> # CONFIG_BNX2 is not set
>
> #
> # Ethernet (10000 Mbit)
> #
> # CONFIG_CHELSIO_T1 is not set
> # CONFIG_IXGB is not set
> # CONFIG_S2IO is not set
>
> #
> # Token Ring devices
> #
> # CONFIG_TR is not set
>
> #
> # Wireless LAN (non-hamradio)
> #
> # CONFIG_NET_RADIO is not set
>
> #
> # Wan interfaces
> #
> # CONFIG_WAN is not set
> # CONFIG_FDDI is not set
> # CONFIG_HIPPI is not set
> # CONFIG_PPP is not set
> # CONFIG_SLIP is not set
> # CONFIG_NET_FC is not set
> # CONFIG_SHAPER is not set
> # CONFIG_NETCONSOLE is not set
> # CONFIG_NETPOLL is not set
> # CONFIG_NET_POLL_CONTROLLER is not set
>
> #
> # ISDN subsystem
> #
> # CONFIG_ISDN is not set
>
> #
> # Telephony Support
> #
> # CONFIG_PHONE is not set
>
> #
> # Input device support
> #
> CONFIG_INPUT=y
>
> #
> # Userland interfaces
> #
> # CONFIG_INPUT_MOUSEDEV is not set
> # CONFIG_INPUT_JOYDEV is not set
> # CONFIG_INPUT_TSDEV is not set
> # CONFIG_INPUT_EVDEV is not set
> # CONFIG_INPUT_EVBUG is not set
>
> #
> # Input Device Drivers
> #
> CONFIG_INPUT_KEYBOARD=y
> CONFIG_KEYBOARD_ATKBD=y
> # CONFIG_KEYBOARD_SUNKBD is not set
> # CONFIG_KEYBOARD_LKKBD is not set
> # CONFIG_KEYBOARD_XTKBD is not set
> # CONFIG_KEYBOARD_NEWTON is not set
> # CONFIG_INPUT_MOUSE is not set
> # CONFIG_INPUT_JOYSTICK is not set
> # CONFIG_INPUT_TOUCHSCREEN is not set
> # CONFIG_INPUT_MISC is not set
>
> #
> # Hardware I/O ports
> #
> CONFIG_SERIO=y
> CONFIG_SERIO_I8042=y
> # CONFIG_SERIO_SERPORT is not set
> # CONFIG_SERIO_CT82C710 is not set
> # CONFIG_SERIO_PCIPS2 is not set
> CONFIG_SERIO_LIBPS2=y
> # CONFIG_SERIO_RAW is not set
> # CONFIG_GAMEPORT is not set
>
> #
> # Character devices
> #
> CONFIG_VT=y
> CONFIG_VT_CONSOLE=y
> CONFIG_HW_CONSOLE=y
> # CONFIG_SERIAL_NONSTANDARD is not set
>
> #
> # Serial drivers
> #
> CONFIG_SERIAL_8250=y
> CONFIG_SERIAL_8250_CONSOLE=y
> # CONFIG_SERIAL_8250_ACPI is not set
> CONFIG_SERIAL_8250_NR_UARTS=4
> CONFIG_SERIAL_8250_RUNTIME_UARTS=4
> CONFIG_SERIAL_8250_EXTENDED=y
> # CONFIG_SERIAL_8250_MANY_PORTS is not set
> CONFIG_SERIAL_8250_SHARE_IRQ=y
> # CONFIG_SERIAL_8250_DETECT_IRQ is not set
> # CONFIG_SERIAL_8250_RSA is not set
>
> #
> # Non-8250 serial port support
> #
> CONFIG_SERIAL_CORE=y
> CONFIG_SERIAL_CORE_CONSOLE=y
> # CONFIG_SERIAL_JSM is not set
> CONFIG_UNIX98_PTYS=y
> # CONFIG_LEGACY_PTYS is not set
>
> #
> # IPMI
> #
> # CONFIG_IPMI_HANDLER is not set
>
> #
> # Watchdog Cards
> #
> CONFIG_WATCHDOG=y
> CONFIG_WATCHDOG_NOWAYOUT=y
>
> #
> # Watchdog Device Drivers
> #
> CONFIG_SOFT_WATCHDOG=m
> # CONFIG_ACQUIRE_WDT is not set
> # CONFIG_ADVANTECH_WDT is not set
> # CONFIG_ALIM1535_WDT is not set
> # CONFIG_ALIM7101_WDT is not set
> # CONFIG_SC520_WDT is not set
> # CONFIG_EUROTECH_WDT is not set
> # CONFIG_IB700_WDT is not set
> # CONFIG_IBMASR is not set
> # CONFIG_WAFER_WDT is not set
> # CONFIG_I6300ESB_WDT is not set
> # CONFIG_I8XX_TCO is not set
> # CONFIG_SC1200_WDT is not set
> # CONFIG_60XX_WDT is not set
> # CONFIG_SBC8360_WDT is not set
> # CONFIG_CPU5_WDT is not set
> # CONFIG_W83627HF_WDT is not set
> # CONFIG_W83877F_WDT is not set
> # CONFIG_W83977F_WDT is not set
> # CONFIG_MACHZ_WDT is not set
> # CONFIG_SBC_EPX_C3_WATCHDOG is not set
>
> #
> # PCI-based Watchdog Cards
> #
> # CONFIG_PCIPCWATCHDOG is not set
> # CONFIG_WDTPCI is not set
>
> #
> # USB-based Watchdog Cards
> #
> # CONFIG_USBPCWATCHDOG is not set
> CONFIG_HW_RANDOM=y
> CONFIG_NVRAM=y
> CONFIG_RTC=y
> # CONFIG_DTLK is not set
> # CONFIG_R3964 is not set
> # CONFIG_APPLICOM is not set
> # CONFIG_SONYPI is not set
>
> #
> # Ftape, the floppy tape device driver
> #
> # CONFIG_AGP is not set
> # CONFIG_DRM is not set
> # CONFIG_MWAVE is not set
> # CONFIG_CS5535_GPIO is not set
> # CONFIG_RAW_DRIVER is not set
> # CONFIG_HPET is not set
> # CONFIG_HANGCHECK_TIMER is not set
>
> #
> # TPM devices
> #
> # CONFIG_TCG_TPM is not set
> # CONFIG_TELCLOCK is not set
>
> #
> # I2C support
> #
> CONFIG_I2C=y
> CONFIG_I2C_CHARDEV=y
>
> #
> # I2C Algorithms
> #
> # CONFIG_I2C_ALGOBIT is not set
> # CONFIG_I2C_ALGOPCF is not set
> # CONFIG_I2C_ALGOPCA is not set
>
> #
> # I2C Hardware Bus support
> #
> # CONFIG_I2C_ALI1535 is not set
> # CONFIG_I2C_ALI1563 is not set
> # CONFIG_I2C_ALI15X3 is not set
> # CONFIG_I2C_AMD756 is not set
> # CONFIG_I2C_AMD8111 is not set
> CONFIG_I2C_I801=y
> # CONFIG_I2C_I810 is not set
> # CONFIG_I2C_PIIX4 is not set
> CONFIG_I2C_ISA=y
> # CONFIG_I2C_NFORCE2 is not set
> # CONFIG_I2C_PARPORT_LIGHT is not set
> # CONFIG_I2C_PROSAVAGE is not set
> # CONFIG_I2C_SAVAGE4 is not set
> # CONFIG_SCx200_ACB is not set
> # CONFIG_I2C_SIS5595 is not set
> # CONFIG_I2C_SIS630 is not set
> # CONFIG_I2C_SIS96X is not set
> # CONFIG_I2C_STUB is not set
> # CONFIG_I2C_VIA is not set
> # CONFIG_I2C_VIAPRO is not set
> # CONFIG_I2C_VOODOO3 is not set
> # CONFIG_I2C_PCA_ISA is not set
>
> #
> # Miscellaneous I2C Chip support
> #
> # CONFIG_SENSORS_DS1337 is not set
> # CONFIG_SENSORS_DS1374 is not set
> # CONFIG_SENSORS_EEPROM is not set
> # CONFIG_SENSORS_PCF8574 is not set
> CONFIG_SENSORS_PCA9551=m
> # CONFIG_SENSORS_PCA9539 is not set
> # CONFIG_SENSORS_PCF8591 is not set
> # CONFIG_SENSORS_RTC8564 is not set
> # CONFIG_SENSORS_MAX6875 is not set
> # CONFIG_RTC_X1205_I2C is not set
> # CONFIG_I2C_DEBUG_CORE is not set
> # CONFIG_I2C_DEBUG_ALGO is not set
> # CONFIG_I2C_DEBUG_BUS is not set
> # CONFIG_I2C_DEBUG_CHIP is not set
>
> #
> # SPI support
> #
> # CONFIG_SPI is not set
> # CONFIG_SPI_MASTER is not set
>
> #
> # Dallas's 1-wire bus
> #
> # CONFIG_W1 is not set
>
> #
> # Hardware Monitoring support
> #
> CONFIG_HWMON=y
> CONFIG_HWMON_VID=y
> # CONFIG_SENSORS_ADM1021 is not set
> # CONFIG_SENSORS_ADM1025 is not set
> # CONFIG_SENSORS_ADM1026 is not set
> # CONFIG_SENSORS_ADM1031 is not set
> # CONFIG_SENSORS_ADM9240 is not set
> # CONFIG_SENSORS_ASB100 is not set
> # CONFIG_SENSORS_ATXP1 is not set
> # CONFIG_SENSORS_DS1621 is not set
> # CONFIG_SENSORS_F71805F is not set
> # CONFIG_SENSORS_FSCHER is not set
> # CONFIG_SENSORS_FSCPOS is not set
> # CONFIG_SENSORS_GL518SM is not set
> # CONFIG_SENSORS_GL520SM is not set
> # CONFIG_SENSORS_IT87 is not set
> # CONFIG_SENSORS_LM63 is not set
> # CONFIG_SENSORS_LM75 is not set
> # CONFIG_SENSORS_LM77 is not set
> # CONFIG_SENSORS_LM78 is not set
> # CONFIG_SENSORS_LM80 is not set
> # CONFIG_SENSORS_LM83 is not set
> # CONFIG_SENSORS_LM85 is not set
> # CONFIG_SENSORS_LM87 is not set
> # CONFIG_SENSORS_LM90 is not set
> # CONFIG_SENSORS_LM92 is not set
> # CONFIG_SENSORS_MAX1619 is not set
> # CONFIG_SENSORS_PC87360 is not set
> # CONFIG_SENSORS_SIS5595 is not set
> # CONFIG_SENSORS_SMSC47M1 is not set
> # CONFIG_SENSORS_SMSC47B397 is not set
> # CONFIG_SENSORS_VIA686A is not set
> # CONFIG_SENSORS_VT8231 is not set
> # CONFIG_SENSORS_W83781D is not set
> CONFIG_SENSORS_W83792D=m
> # CONFIG_SENSORS_W83L785TS is not set
> CONFIG_SENSORS_W83627HF=y
> # CONFIG_SENSORS_W83627EHF is not set
> # CONFIG_SENSORS_HDAPS is not set
> # CONFIG_HWMON_DEBUG_CHIP is not set
>
> #
> # Misc devices
> #
> # CONFIG_IBM_ASM is not set
>
> #
> # Multimedia Capabilities Port drivers
> #
>
> #
> # Multimedia devices
> #
> # CONFIG_VIDEO_DEV is not set
>
> #
> # Digital Video Broadcasting Devices
> #
> # CONFIG_DVB is not set
>
> #
> # Graphics support
> #
> # CONFIG_FB is not set
> # CONFIG_VIDEO_SELECT is not set
>
> #
> # Console display driver support
> #
> CONFIG_VGA_CONSOLE=y
> CONFIG_DUMMY_CONSOLE=y
>
> #
> # Sound
> #
> # CONFIG_SOUND is not set
>
> #
> # USB support
> #
> CONFIG_USB_ARCH_HAS_HCD=y
> CONFIG_USB_ARCH_HAS_OHCI=y
> CONFIG_USB=y
> # CONFIG_USB_DEBUG is not set
>
> #
> # Miscellaneous USB options
> #
> CONFIG_USB_DEVICEFS=y
> # CONFIG_USB_BANDWIDTH is not set
> # CONFIG_USB_DYNAMIC_MINORS is not set
> # CONFIG_USB_SUSPEND is not set
> # CONFIG_USB_OTG is not set
>
> #
> # USB Host Controller Drivers
> #
> CONFIG_USB_EHCI_HCD=y
> # CONFIG_USB_EHCI_SPLIT_ISO is not set
> # CONFIG_USB_EHCI_ROOT_HUB_TT is not set
> # CONFIG_USB_ISP116X_HCD is not set
> # CONFIG_USB_OHCI_HCD is not set
> # CONFIG_USB_UHCI_HCD is not set
> # CONFIG_USB_SL811_HCD is not set
>
> #
> # USB Device Class drivers
> #
> # CONFIG_USB_ACM is not set
> # CONFIG_USB_PRINTER is not set
>
> #
> # NOTE: USB_STORAGE enables SCSI, and 'SCSI disk support'
> #
>
> #
> # may also be needed; see USB_STORAGE Help for more information
> #
> CONFIG_USB_STORAGE=y
> # CONFIG_USB_STORAGE_DEBUG is not set
> # CONFIG_USB_STORAGE_DATAFAB is not set
> CONFIG_USB_STORAGE_FREECOM=y
> # CONFIG_USB_STORAGE_DPCM is not set
> # CONFIG_USB_STORAGE_USBAT is not set
> # CONFIG_USB_STORAGE_SDDR09 is not set
> # CONFIG_USB_STORAGE_SDDR55 is not set
> # CONFIG_USB_STORAGE_JUMPSHOT is not set
> # CONFIG_USB_STORAGE_ALAUDA is not set
> CONFIG_USB_LIBUSUAL=y
>
> #
> # USB Input Devices
> #
> CONFIG_USB_HID=y
> CONFIG_USB_HIDINPUT=y
> # CONFIG_USB_HIDINPUT_POWERBOOK is not set
> # CONFIG_HID_FF is not set
> # CONFIG_USB_HIDDEV is not set
> # CONFIG_USB_AIPTEK is not set
> # CONFIG_USB_WACOM is not set
> # CONFIG_USB_ACECAD is not set
> # CONFIG_USB_KBTAB is not set
> # CONFIG_USB_POWERMATE is not set
> # CONFIG_USB_MTOUCH is not set
> # CONFIG_USB_ITMTOUCH is not set
> # CONFIG_USB_EGALAX is not set
> # CONFIG_USB_YEALINK is not set
> # CONFIG_USB_XPAD is not set
> # CONFIG_USB_ATI_REMOTE is not set
> # CONFIG_USB_ATI_REMOTE2 is not set
> # CONFIG_USB_KEYSPAN_REMOTE is not set
> # CONFIG_USB_APPLETOUCH is not set
>
> #
> # USB Imaging devices
> #
> # CONFIG_USB_MDC800 is not set
> # CONFIG_USB_MICROTEK is not set
>
> #
> # USB Multimedia devices
> #
> # CONFIG_USB_DABUSB is not set
>
> #
> # Video4Linux support is needed for USB Multimedia device support
> #
>
> #
> # USB Network Adapters
> #
> # CONFIG_USB_CATC is not set
> # CONFIG_USB_KAWETH is not set
> # CONFIG_USB_PEGASUS is not set
> # CONFIG_USB_RTL8150 is not set
> # CONFIG_USB_USBNET is not set
> # CONFIG_USB_MON is not set
>
> #
> # USB port drivers
> #
>
> #
> # USB Serial Converter support
> #
> # CONFIG_USB_SERIAL is not set
>
> #
> # USB Miscellaneous drivers
> #
> # CONFIG_USB_EMI62 is not set
> # CONFIG_USB_EMI26 is not set
> # CONFIG_USB_AUERSWALD is not set
> # CONFIG_USB_RIO500 is not set
> # CONFIG_USB_LEGOTOWER is not set
> # CONFIG_USB_LCD is not set
> # CONFIG_USB_LED is not set
> # CONFIG_USB_CYTHERM is not set
> # CONFIG_USB_PHIDGETKIT is not set
> # CONFIG_USB_PHIDGETSERVO is not set
> # CONFIG_USB_IDMOUSE is not set
> # CONFIG_USB_SISUSBVGA is not set
> # CONFIG_USB_LD is not set
> # CONFIG_USB_TEST is not set
>
> #
> # USB DSL modem support
> #
>
> #
> # USB Gadget Support
> #
> # CONFIG_USB_GADGET is not set
>
> #
> # MMC/SD Card support
> #
> # CONFIG_MMC is not set
>
> #
> # InfiniBand support
> #
> # CONFIG_INFINIBAND is not set
>
> #
> # EDAC - error detection and reporting (RAS) (EXPERIMENTAL)
> #
> CONFIG_EDAC=y
>
> #
> # Reporting subsystems
> #
> # CONFIG_EDAC_DEBUG is not set
> CONFIG_EDAC_MM_EDAC=y
> # CONFIG_EDAC_AMD76X is not set
> # CONFIG_EDAC_E7XXX is not set
> CONFIG_EDAC_E752X=y
> # CONFIG_EDAC_I82875P is not set
> # CONFIG_EDAC_I82860 is not set
> # CONFIG_EDAC_R82600 is not set
> CONFIG_EDAC_POLL=y
>
> #
> # File systems
> #
> CONFIG_EXT2_FS=y
> CONFIG_EXT2_FS_XATTR=y
> CONFIG_EXT2_FS_POSIX_ACL=y
> # CONFIG_EXT2_FS_SECURITY is not set
> # CONFIG_EXT2_FS_XIP is not set
> CONFIG_EXT3_FS=y
> CONFIG_EXT3_FS_XATTR=y
> CONFIG_EXT3_FS_POSIX_ACL=y
> # CONFIG_EXT3_FS_SECURITY is not set
> CONFIG_JBD=y
> # CONFIG_JBD_DEBUG is not set
> CONFIG_FS_MBCACHE=y
> # CONFIG_REISERFS_FS is not set
> # CONFIG_JFS_FS is not set
> CONFIG_FS_POSIX_ACL=y
> # CONFIG_XFS_FS is not set
> # CONFIG_OCFS2_FS is not set
> # CONFIG_MINIX_FS is not set
> # CONFIG_ROMFS_FS is not set
> # CONFIG_INOTIFY is not set
> # CONFIG_QUOTA is not set
> # CONFIG_DNOTIFY is not set
> # CONFIG_AUTOFS_FS is not set
> # CONFIG_AUTOFS4_FS is not set
> # CONFIG_FUSE_FS is not set
>
> #
> # CD-ROM/DVD Filesystems
> #
> CONFIG_ISO9660_FS=y
> CONFIG_JOLIET=y
> # CONFIG_ZISOFS is not set
> # CONFIG_UDF_FS is not set
>
> #
> # DOS/FAT/NT Filesystems
> #
> CONFIG_FAT_FS=y
> CONFIG_MSDOS_FS=y
> CONFIG_VFAT_FS=y
> CONFIG_FAT_DEFAULT_CODEPAGE=437
> CONFIG_FAT_DEFAULT_IOCHARSET="iso8859-1"
> # CONFIG_NTFS_FS is not set
>
> #
> # Pseudo filesystems
> #
> CONFIG_PROC_FS=y
> # CONFIG_PROC_KCORE is not set
> CONFIG_SYSFS=y
> CONFIG_TMPFS=y
> CONFIG_HUGETLBFS=y
> CONFIG_HUGETLB_PAGE=y
> CONFIG_RAMFS=y
> CONFIG_RELAYFS_FS=y
> # CONFIG_CONFIGFS_FS is not set
>
> #
> # Miscellaneous filesystems
> #
> # CONFIG_ADFS_FS is not set
> # CONFIG_AFFS_FS is not set
> # CONFIG_HFS_FS is not set
> # CONFIG_HFSPLUS_FS is not set
> # CONFIG_BEFS_FS is not set
> # CONFIG_BFS_FS is not set
> # CONFIG_EFS_FS is not set
> # CONFIG_CRAMFS is not set
> # CONFIG_VXFS_FS is not set
> # CONFIG_HPFS_FS is not set
> # CONFIG_QNX4FS_FS is not set
> # CONFIG_SYSV_FS is not set
> # CONFIG_UFS_FS is not set
>
> #
> # Network File Systems
> #
> CONFIG_NFS_FS=y
> CONFIG_NFS_V3=y
> # CONFIG_NFS_V3_ACL is not set
> # CONFIG_NFS_V4 is not set
> # CONFIG_NFS_DIRECTIO is not set
> # CONFIG_NFSD is not set
> CONFIG_LOCKD=y
> CONFIG_LOCKD_V4=y
> CONFIG_NFS_COMMON=y
> CONFIG_SUNRPC=y
> # CONFIG_RPCSEC_GSS_KRB5 is not set
> # CONFIG_RPCSEC_GSS_SPKM3 is not set
> # CONFIG_SMB_FS is not set
> # CONFIG_CIFS is not set
> # CONFIG_NCP_FS is not set
> # CONFIG_CODA_FS is not set
> # CONFIG_AFS_FS is not set
> # CONFIG_9P_FS is not set
>
> #
> # Partition Types
> #
> # CONFIG_PARTITION_ADVANCED is not set
> CONFIG_MSDOS_PARTITION=y
>
> #
> # Native Language Support
> #
> CONFIG_NLS=y
> CONFIG_NLS_DEFAULT="UTF-8"
> CONFIG_NLS_CODEPAGE_437=y
> # CONFIG_NLS_CODEPAGE_737 is not set
> # CONFIG_NLS_CODEPAGE_775 is not set
> # CONFIG_NLS_CODEPAGE_850 is not set
> # CONFIG_NLS_CODEPAGE_852 is not set
> # CONFIG_NLS_CODEPAGE_855 is not set
> # CONFIG_NLS_CODEPAGE_857 is not set
> # CONFIG_NLS_CODEPAGE_860 is not set
> # CONFIG_NLS_CODEPAGE_861 is not set
> # CONFIG_NLS_CODEPAGE_862 is not set
> # CONFIG_NLS_CODEPAGE_863 is not set
> # CONFIG_NLS_CODEPAGE_864 is not set
> # CONFIG_NLS_CODEPAGE_865 is not set
> # CONFIG_NLS_CODEPAGE_866 is not set
> # CONFIG_NLS_CODEPAGE_869 is not set
> # CONFIG_NLS_CODEPAGE_936 is not set
> # CONFIG_NLS_CODEPAGE_950 is not set
> # CONFIG_NLS_CODEPAGE_932 is not set
> # CONFIG_NLS_CODEPAGE_949 is not set
> # CONFIG_NLS_CODEPAGE_874 is not set
> # CONFIG_NLS_ISO8859_8 is not set
> # CONFIG_NLS_CODEPAGE_1250 is not set
> # CONFIG_NLS_CODEPAGE_1251 is not set
> CONFIG_NLS_ASCII=y
> CONFIG_NLS_ISO8859_1=y
> # CONFIG_NLS_ISO8859_2 is not set
> # CONFIG_NLS_ISO8859_3 is not set
> # CONFIG_NLS_ISO8859_4 is not set
> # CONFIG_NLS_ISO8859_5 is not set
> # CONFIG_NLS_ISO8859_6 is not set
> # CONFIG_NLS_ISO8859_7 is not set
> # CONFIG_NLS_ISO8859_9 is not set
> # CONFIG_NLS_ISO8859_13 is not set
> # CONFIG_NLS_ISO8859_14 is not set
> CONFIG_NLS_ISO8859_15=y
> # CONFIG_NLS_KOI8_R is not set
> # CONFIG_NLS_KOI8_U is not set
> CONFIG_NLS_UTF8=y
>
> #
> # Instrumentation Support
> #
> # CONFIG_PROFILING is not set
> # CONFIG_KPROBES is not set
>
> #
> # Kernel hacking
> #
> # CONFIG_PRINTK_TIME is not set
> CONFIG_MAGIC_SYSRQ=y
> CONFIG_DEBUG_KERNEL=y
> CONFIG_LOG_BUF_SHIFT=16
> CONFIG_DETECT_SOFTLOCKUP=y
> # CONFIG_SCHEDSTATS is not set
> CONFIG_DEBUG_SLAB=y
> # CONFIG_DEBUG_PREEMPT is not set
> CONFIG_DEBUG_MUTEXES=y
> CONFIG_DEBUG_SPINLOCK=y
> CONFIG_DEBUG_SPINLOCK_SLEEP=y
> # CONFIG_DEBUG_KOBJECT is not set
> CONFIG_DEBUG_BUGVERBOSE=y
> # CONFIG_DEBUG_INFO is not set
> # CONFIG_DEBUG_FS is not set
> CONFIG_DEBUG_VM=y
> # CONFIG_FRAME_POINTER is not set
> CONFIG_FORCED_INLINING=y
> # CONFIG_RCU_TORTURE_TEST is not set
> CONFIG_EARLY_PRINTK=y
> CONFIG_DEBUG_STACKOVERFLOW=y
> # CONFIG_DEBUG_STACK_USAGE is not set
> CONFIG_DEBUG_PAGEALLOC=y
> # CONFIG_DEBUG_RODATA is not set
> CONFIG_4KSTACKS=y
> CONFIG_X86_FIND_SMP_CONFIG=y
> CONFIG_X86_MPPARSE=y
>
> #
> # Security options
> #
> # CONFIG_KEYS is not set
> # CONFIG_SECURITY is not set
>
> #
> # Cryptographic options
> #
> CONFIG_CRYPTO=y
> # CONFIG_CRYPTO_HMAC is not set
> # CONFIG_CRYPTO_NULL is not set
> # CONFIG_CRYPTO_MD4 is not set
> CONFIG_CRYPTO_MD5=y
> # CONFIG_CRYPTO_SHA1 is not set
> # CONFIG_CRYPTO_SHA256 is not set
> # CONFIG_CRYPTO_SHA512 is not set
> # CONFIG_CRYPTO_WP512 is not set
> # CONFIG_CRYPTO_TGR192 is not set
> # CONFIG_CRYPTO_DES is not set
> # CONFIG_CRYPTO_BLOWFISH is not set
> # CONFIG_CRYPTO_TWOFISH is not set
> # CONFIG_CRYPTO_SERPENT is not set
> # CONFIG_CRYPTO_AES is not set
> # CONFIG_CRYPTO_AES_586 is not set
> # CONFIG_CRYPTO_CAST5 is not set
> # CONFIG_CRYPTO_CAST6 is not set
> # CONFIG_CRYPTO_TEA is not set
> # CONFIG_CRYPTO_ARC4 is not set
> # CONFIG_CRYPTO_KHAZAD is not set
> # CONFIG_CRYPTO_ANUBIS is not set
> # CONFIG_CRYPTO_DEFLATE is not set
> # CONFIG_CRYPTO_MICHAEL_MIC is not set
> CONFIG_CRYPTO_CRC32C=y
> # CONFIG_CRYPTO_TEST is not set
>
> #
> # Hardware crypto devices
> #
> # CONFIG_CRYPTO_DEV_PADLOCK is not set
>
> #
> # Library routines
> #
> # CONFIG_CRC_CCITT is not set
> # CONFIG_CRC16 is not set
> CONFIG_CRC32=y
> CONFIG_LIBCRC32C=y
> CONFIG_GENERIC_HARDIRQS=y
> CONFIG_GENERIC_IRQ_PROBE=y
> CONFIG_GENERIC_PENDING_IRQ=y
> CONFIG_X86_SMP=y
> CONFIG_X86_HT=y
> CONFIG_X86_BIOS_REBOOT=y
> CONFIG_X86_TRAMPOLINE=y
> CONFIG_KTIME_SCALAR=y

--
Mark Rustad, [email protected]

2006-03-24 17:52:18

by Mark Rustad

[permalink] [raw]
Subject: Re: 2.6.16 hugetlbfs problem - DEBUG_PAGEALLOC

On Mar 23, 2006, at 1:13 PM, Mark Rustad wrote:

> On Mar 23, 2006, at 9:36 AM, Mark Rustad wrote:
>
>> On Mar 22, 2006, at 11:43 PM, Chen, Kenneth W wrote:
>>
>>> Mark Rustad wrote on Wednesday, March 22, 2006 3:33 PM
>>>>>> I seem to be having trouble using hugetlbfs with kernel 2.6.16. I
>>>>>> have a small test program that worked with 2.6.16-rc5, but
>>>>>> fails with
>>>>>> 2.6.16-rc6 or the release. The program is below. Given a path
>>>>>> to a
>>>>>> file on a hugetlbfs, it opens/creates the file, mmaps it and
>>>>>> tries to
>>>>>> access the first word. On 2.6.16-rc5, it works. On 2.6.16, it
>>>>>> hangs
>>>>>> page-faulting until it is killed.
>>>>>
>>>>> On what platform? Things like hugetlb and address space layout
>>>>> (you're requesting a specific mmap() address I noticed) are very
>>>>> platform specific.
>>>>
>>>> This is on a Xeon, without PAE with the 1GB no-highmem memory
>>>> map, in
>>>> all three cases. This is a 32-bit kernel running on a Nacona CPU. I
>>>> also had an unmap call over the range to be mmap-ed, but the
>>>> failure/
>>>> success cases were the same, so I removed it to reduce the test
>>>> program further.
>>>
>>> It might be something else happening in your environment. I ran
>>> your test
>>> code on a similar system. It ran just fine.
>>
>> Perhaps. I have tried more stuff here, but still no joy. I have
>> put my kernel configuration below. You will see that it is a
>> mostly-monolithic kernel. It is weird that it works with 2.6.16-
>> rc5, but not later. I looked at the incremental patch but nothing
>> jumped out at me, but I am not a vm wizard. I will look again.
>
> It appears that this problem is configuration-related. By turning
> off the kernel debugging options that I had on, things started
> working. I have not yet isolated which of the options being enabled
> is causing the problem, but there was no noise in the kernel log
> when they were enabled and I was experiencing the problem. I will
> post more after I know more.
>
> The kernel version was a red herring. I had turned on the kernel
> debugging options between the two builds. I had just mistakenly
> associated the failure with the update and had forgotten the
> debugging options that I had added when I configured the new
> kernel. I had turned them to just look more carefully for general
> trouble. No good deed goes unpunished. :-)

I have narrowed this down to DEBUG_PAGEALLOC. If that option is
enabled, attempts to reference areas mmap-ed from hugetlbfs files
fault forever. You can see that I had that set in the failing config
I reported below.

>> #
>> # Automatically generated make config: don't edit
>> # Linux kernel version: 2.6.16-0a
>> # Mon Mar 20 12:42:24 2006
>> #
>> CONFIG_X86_32=y
>> CONFIG_SEMAPHORE_SLEEPERS=y
>> CONFIG_X86=y
>> CONFIG_MMU=y
>> CONFIG_GENERIC_ISA_DMA=y
>> CONFIG_GENERIC_IOMAP=y
>> CONFIG_ARCH_MAY_HAVE_PC_FDC=y
>> CONFIG_DMI=y
>>
>> #
>> # Code maturity level options
>> #
>> CONFIG_EXPERIMENTAL=y
>> CONFIG_LOCK_KERNEL=y
>> CONFIG_INIT_ENV_ARG_LIMIT=32
>>
>> #
>> # General setup
>> #
>> CONFIG_LOCALVERSION=""
>> # CONFIG_LOCALVERSION_AUTO is not set
>> CONFIG_SWAP=y
>> # CONFIG_SYSVIPC is not set
>> # CONFIG_POSIX_MQUEUE is not set
>> # CONFIG_BSD_PROCESS_ACCT is not set
>> CONFIG_SYSCTL=y
>> # CONFIG_AUDIT is not set
>> # CONFIG_IKCONFIG is not set
>> # CONFIG_CPUSETS is not set
>> CONFIG_INITRAMFS_SOURCE=""
>> # CONFIG_UID16 is not set
>> # CONFIG_VM86 is not set
>> # CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
>> CONFIG_EMBEDDED=y
>> CONFIG_KALLSYMS=y
>> CONFIG_KALLSYMS_ALL=y
>> # CONFIG_KALLSYMS_EXTRA_PASS is not set
>> CONFIG_HOTPLUG=y
>> CONFIG_PRINTK=y
>> CONFIG_BUG=y
>> CONFIG_ELF_CORE=y
>> CONFIG_BASE_FULL=y
>> CONFIG_FUTEX=y
>> CONFIG_EPOLL=y
>> CONFIG_SHMEM=y
>> CONFIG_CC_ALIGN_FUNCTIONS=0
>> CONFIG_CC_ALIGN_LABELS=0
>> CONFIG_CC_ALIGN_LOOPS=0
>> CONFIG_CC_ALIGN_JUMPS=0
>> CONFIG_SLAB=y
>> # CONFIG_TINY_SHMEM is not set
>> CONFIG_BASE_SMALL=0
>> # CONFIG_SLOB is not set
>>
>> #
>> # Loadable module support
>> #
>> CONFIG_MODULES=y
>> CONFIG_MODULE_UNLOAD=y
>> CONFIG_MODULE_FORCE_UNLOAD=y
>> CONFIG_OBSOLETE_MODPARM=y
>> # CONFIG_MODVERSIONS is not set
>> # CONFIG_MODULE_SRCVERSION_ALL is not set
>> # CONFIG_KMOD is not set
>> CONFIG_STOP_MACHINE=y
>>
>> #
>> # Block layer
>> #
>> CONFIG_LBD=y
>>
>> #
>> # IO Schedulers
>> #
>> CONFIG_IOSCHED_NOOP=y
>> # CONFIG_IOSCHED_AS is not set
>> # CONFIG_IOSCHED_DEADLINE is not set
>> # CONFIG_IOSCHED_CFQ is not set
>> # CONFIG_DEFAULT_AS is not set
>> # CONFIG_DEFAULT_DEADLINE is not set
>> # CONFIG_DEFAULT_CFQ is not set
>> CONFIG_DEFAULT_NOOP=y
>> CONFIG_DEFAULT_IOSCHED="noop"
>>
>> #
>> # Processor type and features
>> #
>> # CONFIG_X86_PC is not set
>> # CONFIG_X86_ELAN is not set
>> # CONFIG_X86_VOYAGER is not set
>> # CONFIG_X86_NUMAQ is not set
>> # CONFIG_X86_SUMMIT is not set
>> # CONFIG_X86_BIGSMP is not set
>> # CONFIG_X86_VISWS is not set
>> CONFIG_X86_GENERICARCH=y
>> # CONFIG_X86_ES7000 is not set
>> CONFIG_X86_CYCLONE_TIMER=y
>> # CONFIG_M386 is not set
>> # CONFIG_M486 is not set
>> # CONFIG_M586 is not set
>> # CONFIG_M586TSC is not set
>> # CONFIG_M586MMX is not set
>> # CONFIG_M686 is not set
>> # CONFIG_MPENTIUMII is not set
>> # CONFIG_MPENTIUMIII is not set
>> # CONFIG_MPENTIUMM is not set
>> CONFIG_MPENTIUM4=y
>> # CONFIG_MK6 is not set
>> # CONFIG_MK7 is not set
>> # CONFIG_MK8 is not set
>> # CONFIG_MCRUSOE is not set
>> # CONFIG_MEFFICEON is not set
>> # CONFIG_MWINCHIPC6 is not set
>> # CONFIG_MWINCHIP2 is not set
>> # CONFIG_MWINCHIP3D is not set
>> # CONFIG_MGEODEGX1 is not set
>> # CONFIG_MGEODE_LX is not set
>> # CONFIG_MCYRIXIII is not set
>> # CONFIG_MVIAC3_2 is not set
>> # CONFIG_X86_GENERIC is not set
>> CONFIG_X86_CMPXCHG=y
>> CONFIG_X86_XADD=y
>> CONFIG_X86_L1_CACHE_SHIFT=7
>> CONFIG_RWSEM_XCHGADD_ALGORITHM=y
>> CONFIG_GENERIC_CALIBRATE_DELAY=y
>> CONFIG_X86_WP_WORKS_OK=y
>> CONFIG_X86_INVLPG=y
>> CONFIG_X86_BSWAP=y
>> CONFIG_X86_POPAD_OK=y
>> CONFIG_X86_CMPXCHG64=y
>> CONFIG_X86_GOOD_APIC=y
>> CONFIG_X86_INTEL_USERCOPY=y
>> CONFIG_X86_USE_PPRO_CHECKSUM=y
>> CONFIG_X86_TSC=y
>> CONFIG_HPET_TIMER=y
>> CONFIG_HPET_EMULATE_RTC=y
>> CONFIG_SMP=y
>> CONFIG_NR_CPUS=2
>> # CONFIG_SCHED_SMT is not set
>> # CONFIG_PREEMPT_NONE is not set
>> # CONFIG_PREEMPT_VOLUNTARY is not set
>> CONFIG_PREEMPT=y
>> CONFIG_PREEMPT_BKL=y
>> CONFIG_X86_LOCAL_APIC=y
>> CONFIG_X86_IO_APIC=y
>> CONFIG_X86_MCE=y
>> CONFIG_X86_MCE_NONFATAL=y
>> CONFIG_X86_MCE_P4THERMAL=y
>> # CONFIG_TOSHIBA is not set
>> # CONFIG_I8K is not set
>> # CONFIG_X86_REBOOTFIXUPS is not set
>> CONFIG_MICROCODE=y
>> CONFIG_X86_MSR=y
>> CONFIG_X86_CPUID=y
>>
>> #
>> # Firmware Drivers
>> #
>> CONFIG_EDD=y
>> # CONFIG_DELL_RBU is not set
>> # CONFIG_DCDBAS is not set
>> CONFIG_NOHIGHMEM=y
>> # CONFIG_HIGHMEM4G is not set
>> # CONFIG_HIGHMEM64G is not set
>> # CONFIG_VMSPLIT_3G is not set
>> CONFIG_VMSPLIT_3G_OPT=y
>> # CONFIG_VMSPLIT_2G is not set
>> # CONFIG_VMSPLIT_1G is not set
>> CONFIG_PAGE_OFFSET=0xB0000000
>> CONFIG_SELECT_MEMORY_MODEL=y
>> CONFIG_FLATMEM_MANUAL=y
>> # CONFIG_DISCONTIGMEM_MANUAL is not set
>> # CONFIG_SPARSEMEM_MANUAL is not set
>> CONFIG_FLATMEM=y
>> CONFIG_FLAT_NODE_MEM_MAP=y
>> # CONFIG_SPARSEMEM_STATIC is not set
>> CONFIG_SPLIT_PTLOCK_CPUS=4
>> # CONFIG_MATH_EMULATION is not set
>> CONFIG_MTRR=y
>> # CONFIG_EFI is not set
>> # CONFIG_IRQBALANCE is not set
>> CONFIG_REGPARM=y
>> # CONFIG_SECCOMP is not set
>> # CONFIG_HZ_100 is not set
>> CONFIG_HZ_250=y
>> # CONFIG_HZ_1000 is not set
>> CONFIG_HZ=250
>> # CONFIG_KEXEC is not set
>> CONFIG_PHYSICAL_START=0x100000
>> # CONFIG_HOTPLUG_CPU is not set
>> CONFIG_DOUBLEFAULT=y
>>
>> #
>> # Power management options (ACPI, APM)
>> #
>> CONFIG_PM=y
>> # CONFIG_PM_LEGACY is not set
>> # CONFIG_PM_DEBUG is not set
>>
>> #
>> # ACPI (Advanced Configuration and Power Interface) Support
>> #
>> CONFIG_ACPI=y
>> # CONFIG_ACPI_AC is not set
>> # CONFIG_ACPI_BATTERY is not set
>> CONFIG_ACPI_BUTTON=y
>> # CONFIG_ACPI_VIDEO is not set
>> # CONFIG_ACPI_HOTKEY is not set
>> CONFIG_ACPI_FAN=y
>> CONFIG_ACPI_PROCESSOR=y
>> CONFIG_ACPI_THERMAL=y
>> # CONFIG_ACPI_ASUS is not set
>> # CONFIG_ACPI_IBM is not set
>> # CONFIG_ACPI_TOSHIBA is not set
>> CONFIG_ACPI_BLACKLIST_YEAR=0
>> # CONFIG_ACPI_DEBUG is not set
>> CONFIG_ACPI_EC=y
>> CONFIG_ACPI_POWER=y
>> CONFIG_ACPI_SYSTEM=y
>> # CONFIG_X86_PM_TIMER is not set
>> # CONFIG_ACPI_CONTAINER is not set
>>
>> #
>> # APM (Advanced Power Management) BIOS Support
>> #
>> # CONFIG_APM is not set
>>
>> #
>> # CPU Frequency scaling
>> #
>> CONFIG_CPU_FREQ=y
>> CONFIG_CPU_FREQ_TABLE=y
>> # CONFIG_CPU_FREQ_DEBUG is not set
>> CONFIG_CPU_FREQ_STAT=y
>> # CONFIG_CPU_FREQ_STAT_DETAILS is not set
>> CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE=y
>> # CONFIG_CPU_FREQ_DEFAULT_GOV_USERSPACE is not set
>> CONFIG_CPU_FREQ_GOV_PERFORMANCE=y
>> # CONFIG_CPU_FREQ_GOV_POWERSAVE is not set
>> # CONFIG_CPU_FREQ_GOV_USERSPACE is not set
>> # CONFIG_CPU_FREQ_GOV_ONDEMAND is not set
>> # CONFIG_CPU_FREQ_GOV_CONSERVATIVE is not set
>>
>> #
>> # CPUFreq processor drivers
>> #
>> # CONFIG_X86_ACPI_CPUFREQ is not set
>> # CONFIG_X86_POWERNOW_K6 is not set
>> # CONFIG_X86_POWERNOW_K7 is not set
>> # CONFIG_X86_POWERNOW_K8 is not set
>> # CONFIG_X86_GX_SUSPMOD is not set
>> CONFIG_X86_SPEEDSTEP_CENTRINO=y
>> CONFIG_X86_SPEEDSTEP_CENTRINO_ACPI=y
>> CONFIG_X86_SPEEDSTEP_CENTRINO_TABLE=y
>> # CONFIG_X86_SPEEDSTEP_ICH is not set
>> # CONFIG_X86_SPEEDSTEP_SMI is not set
>> CONFIG_X86_P4_CLOCKMOD=y
>> # CONFIG_X86_CPUFREQ_NFORCE2 is not set
>> # CONFIG_X86_LONGRUN is not set
>> # CONFIG_X86_LONGHAUL is not set
>>
>> #
>> # shared options
>> #
>> # CONFIG_X86_ACPI_CPUFREQ_PROC_INTF is not set
>> CONFIG_X86_SPEEDSTEP_LIB=y
>>
>> #
>> # Bus options (PCI, PCMCIA, EISA, MCA, ISA)
>> #
>> CONFIG_PCI=y
>> # CONFIG_PCI_GOBIOS is not set
>> # CONFIG_PCI_GOMMCONFIG is not set
>> # CONFIG_PCI_GODIRECT is not set
>> CONFIG_PCI_GOANY=y
>> CONFIG_PCI_BIOS=y
>> CONFIG_PCI_DIRECT=y
>> CONFIG_PCI_MMCONFIG=y
>> # CONFIG_PCIEPORTBUS is not set
>> # CONFIG_PCI_MSI is not set
>> # CONFIG_PCI_LEGACY_PROC is not set
>> # CONFIG_PCI_DEBUG is not set
>> CONFIG_ISA_DMA_API=y
>> # CONFIG_ISA is not set
>> # CONFIG_MCA is not set
>> # CONFIG_SCx200 is not set
>>
>> #
>> # PCCARD (PCMCIA/CardBus) support
>> #
>> # CONFIG_PCCARD is not set
>>
>> #
>> # PCI Hotplug Support
>> #
>> # CONFIG_HOTPLUG_PCI is not set
>>
>> #
>> # Executable file formats
>> #
>> CONFIG_BINFMT_ELF=y
>> # CONFIG_BINFMT_AOUT is not set
>> CONFIG_BINFMT_MISC=y
>>
>> #
>> # Networking
>> #
>> CONFIG_NET=y
>>
>> #
>> # Networking options
>> #
>> # CONFIG_NETDEBUG is not set
>> CONFIG_PACKET=y
>> CONFIG_PACKET_MMAP=y
>> CONFIG_UNIX=y
>> # CONFIG_NET_KEY is not set
>> CONFIG_INET=y
>> CONFIG_IP_MULTICAST=y
>> CONFIG_IP_ADVANCED_ROUTER=y
>> CONFIG_ASK_IP_FIB_HASH=y
>> # CONFIG_IP_FIB_TRIE is not set
>> CONFIG_IP_FIB_HASH=y
>> CONFIG_IP_MULTIPLE_TABLES=y
>> # CONFIG_IP_ROUTE_MULTIPATH is not set
>> # CONFIG_IP_ROUTE_VERBOSE is not set
>> # CONFIG_IP_PNP is not set
>> # CONFIG_NET_IPIP is not set
>> # CONFIG_NET_IPGRE is not set
>> # CONFIG_IP_MROUTE is not set
>> # CONFIG_ARPD is not set
>> # CONFIG_SYN_COOKIES is not set
>> # CONFIG_INET_AH is not set
>> # CONFIG_INET_ESP is not set
>> # CONFIG_INET_IPCOMP is not set
>> # CONFIG_INET_TUNNEL is not set
>> CONFIG_INET_DIAG=y
>> CONFIG_INET_TCP_DIAG=y
>> # CONFIG_TCP_CONG_ADVANCED is not set
>> CONFIG_TCP_CONG_BIC=y
>> CONFIG_IPV6=y
>> # CONFIG_IPV6_PRIVACY is not set
>> # CONFIG_INET6_AH is not set
>> # CONFIG_INET6_ESP is not set
>> # CONFIG_INET6_IPCOMP is not set
>> # CONFIG_INET6_TUNNEL is not set
>> # CONFIG_IPV6_TUNNEL is not set
>> # CONFIG_NETFILTER is not set
>>
>> #
>> # DCCP Configuration (EXPERIMENTAL)
>> #
>> # CONFIG_IP_DCCP is not set
>>
>> #
>> # SCTP Configuration (EXPERIMENTAL)
>> #
>> # CONFIG_IP_SCTP is not set
>>
>> #
>> # TIPC Configuration (EXPERIMENTAL)
>> #
>> # CONFIG_TIPC is not set
>> # CONFIG_ATM is not set
>> # CONFIG_BRIDGE is not set
>> # CONFIG_VLAN_8021Q is not set
>> # CONFIG_DECNET is not set
>> # CONFIG_LLC2 is not set
>> # CONFIG_IPX is not set
>> # CONFIG_ATALK is not set
>> # CONFIG_X25 is not set
>> # CONFIG_LAPB is not set
>> # CONFIG_NET_DIVERT is not set
>> # CONFIG_ECONET is not set
>> # CONFIG_WAN_ROUTER is not set
>>
>> #
>> # QoS and/or fair queueing
>> #
>> # CONFIG_NET_SCHED is not set
>>
>> #
>> # Network testing
>> #
>> # CONFIG_NET_PKTGEN is not set
>> # CONFIG_HAMRADIO is not set
>> # CONFIG_IRDA is not set
>> # CONFIG_BT is not set
>> # CONFIG_IEEE80211 is not set
>>
>> #
>> # Device Drivers
>> #
>>
>> #
>> # Generic Driver Options
>> #
>> CONFIG_STANDALONE=y
>> CONFIG_PREVENT_FIRMWARE_BUILD=y
>> # CONFIG_FW_LOADER is not set
>> # CONFIG_DEBUG_DRIVER is not set
>>
>> #
>> # Connector - unified userspace <-> kernelspace linker
>> #
>> # CONFIG_CONNECTOR is not set
>>
>> #
>> # Memory Technology Devices (MTD)
>> #
>> # CONFIG_MTD is not set
>>
>> #
>> # Parallel port support
>> #
>> # CONFIG_PARPORT is not set
>>
>> #
>> # Plug and Play support
>> #
>> # CONFIG_PNP is not set
>>
>> #
>> # Block devices
>> #
>> # CONFIG_BLK_DEV_FD is not set
>> # CONFIG_BLK_CPQ_DA is not set
>> # CONFIG_BLK_CPQ_CISS_DA is not set
>> # CONFIG_BLK_DEV_DAC960 is not set
>> # CONFIG_BLK_DEV_UMEM is not set
>> # CONFIG_BLK_DEV_COW_COMMON is not set
>> CONFIG_BLK_DEV_LOOP=y
>> # CONFIG_BLK_DEV_CRYPTOLOOP is not set
>> # CONFIG_BLK_DEV_NBD is not set
>> # CONFIG_BLK_DEV_SX8 is not set
>> # CONFIG_BLK_DEV_UB is not set
>> CONFIG_BLK_DEV_RAM=y
>> CONFIG_BLK_DEV_RAM_COUNT=8
>> CONFIG_BLK_DEV_RAM_SIZE=8192
>> CONFIG_BLK_DEV_INITRD=y
>> # CONFIG_CDROM_PKTCDVD is not set
>> # CONFIG_ATA_OVER_ETH is not set
>>
>> #
>> # ATA/ATAPI/MFM/RLL support
>> #
>> # CONFIG_IDE is not set
>>
>> #
>> # SCSI device support
>> #
>> # CONFIG_RAID_ATTRS is not set
>> CONFIG_SCSI=y
>> CONFIG_SCSI_PROC_FS=y
>>
>> #
>> # SCSI support type (disk, tape, CD-ROM)
>> #
>> CONFIG_BLK_DEV_SD=y
>> # CONFIG_CHR_DEV_ST is not set
>> # CONFIG_CHR_DEV_OSST is not set
>> CONFIG_BLK_DEV_SR=y
>> # CONFIG_BLK_DEV_SR_VENDOR is not set
>> CONFIG_CHR_DEV_SG=y
>> # CONFIG_CHR_DEV_SCH is not set
>>
>> #
>> # Some SCSI devices (e.g. CD jukebox) support multiple LUNs
>> #
>> # CONFIG_SCSI_MULTI_LUN is not set
>> # CONFIG_SCSI_CONSTANTS is not set
>> CONFIG_SCSI_LOGGING=y
>>
>> #
>> # SCSI Transport Attributes
>> #
>> # CONFIG_SCSI_SPI_ATTRS is not set
>> # CONFIG_SCSI_FC_ATTRS is not set
>> CONFIG_SCSI_ISCSI_ATTRS=y
>> # CONFIG_SCSI_SAS_ATTRS is not set
>>
>> #
>> # SCSI Transport Layers
>> #
>> CONFIG_SAS_CLASS=y
>> CONFIG_SAS_DEBUG=y
>>
>> #
>> # SCSI low-level drivers
>> #
>> CONFIG_ISCSI_TCP=m
>> # CONFIG_BLK_DEV_3W_XXXX_RAID is not set
>> # CONFIG_SCSI_3W_9XXX is not set
>> # CONFIG_SCSI_ACARD is not set
>> # CONFIG_SCSI_AACRAID is not set
>> CONFIG_SCSI_AIC94XX=m
>> CONFIG_AIC94XX_DEBUG=y
>> # CONFIG_SCSI_AIC7XXX is not set
>> # CONFIG_SCSI_AIC7XXX_OLD is not set
>> # CONFIG_SCSI_AIC79XX is not set
>> # CONFIG_SCSI_DPT_I2O is not set
>> # CONFIG_MEGARAID_NEWGEN is not set
>> # CONFIG_MEGARAID_LEGACY is not set
>> # CONFIG_MEGARAID_SAS is not set
>> CONFIG_SCSI_SATA=y
>> # CONFIG_SCSI_SATA_AHCI is not set
>> # CONFIG_SCSI_SATA_SVW is not set
>> # CONFIG_SCSI_ATA_PIIX is not set
>> # CONFIG_SCSI_SATA_MV is not set
>> # CONFIG_SCSI_SATA_NV is not set
>> # CONFIG_SCSI_PDC_ADMA is not set
>> # CONFIG_SCSI_SATA_QSTOR is not set
>> # CONFIG_SCSI_SATA_PROMISE is not set
>> # CONFIG_SCSI_SATA_SX4 is not set
>> # CONFIG_SCSI_SATA_SIL is not set
>> # CONFIG_SCSI_SATA_SIL24 is not set
>> # CONFIG_SCSI_SATA_SIS is not set
>> # CONFIG_SCSI_SATA_ULI is not set
>> # CONFIG_SCSI_SATA_VIA is not set
>> # CONFIG_SCSI_SATA_VITESSE is not set
>> # CONFIG_SCSI_BUSLOGIC is not set
>> # CONFIG_SCSI_DMX3191D is not set
>> # CONFIG_SCSI_EATA is not set
>> # CONFIG_SCSI_FUTURE_DOMAIN is not set
>> # CONFIG_SCSI_GDTH is not set
>> # CONFIG_SCSI_IPS is not set
>> # CONFIG_SCSI_INITIO is not set
>> # CONFIG_SCSI_INIA100 is not set
>> # CONFIG_SCSI_SYM53C8XX_2 is not set
>> # CONFIG_SCSI_IPR is not set
>> # CONFIG_SCSI_QLOGIC_FC is not set
>> # CONFIG_SCSI_QLOGIC_1280 is not set
>> # CONFIG_SCSI_QLA_FC is not set
>> # CONFIG_SCSI_LPFC is not set
>> # CONFIG_SCSI_DC395x is not set
>> # CONFIG_SCSI_DC390T is not set
>> # CONFIG_SCSI_NSP32 is not set
>> # CONFIG_SCSI_DEBUG is not set
>>
>> #
>> # Multi-device support (RAID and LVM)
>> #
>> # CONFIG_MD is not set
>>
>> #
>> # Fusion MPT device support
>> #
>> # CONFIG_FUSION is not set
>> # CONFIG_FUSION_SPI is not set
>> # CONFIG_FUSION_FC is not set
>> # CONFIG_FUSION_SAS is not set
>>
>> #
>> # IEEE 1394 (FireWire) support
>> #
>> # CONFIG_IEEE1394 is not set
>>
>> #
>> # I2O device support
>> #
>> # CONFIG_I2O is not set
>>
>> #
>> # Network device support
>> #
>> CONFIG_NETDEVICES=y
>> # CONFIG_DUMMY is not set
>> # CONFIG_BONDING is not set
>> # CONFIG_EQUALIZER is not set
>> # CONFIG_TUN is not set
>>
>> #
>> # ARCnet devices
>> #
>> # CONFIG_ARCNET is not set
>>
>> #
>> # PHY device support
>> #
>>
>> #
>> # Ethernet (10 or 100Mbit)
>> #
>> # CONFIG_NET_ETHERNET is not set
>>
>> #
>> # Ethernet (1000 Mbit)
>> #
>> # CONFIG_ACENIC is not set
>> # CONFIG_DL2K is not set
>> CONFIG_E1000=y
>> CONFIG_E1000_NAPI=y
>> # CONFIG_E1000_DISABLE_PACKET_SPLIT is not set
>> # CONFIG_NS83820 is not set
>> # CONFIG_HAMACHI is not set
>> # CONFIG_YELLOWFIN is not set
>> # CONFIG_R8169 is not set
>> # CONFIG_SIS190 is not set
>> # CONFIG_SKGE is not set
>> # CONFIG_SKY2 is not set
>> # CONFIG_SK98LIN is not set
>> # CONFIG_TIGON3 is not set
>> # CONFIG_BNX2 is not set
>>
>> #
>> # Ethernet (10000 Mbit)
>> #
>> # CONFIG_CHELSIO_T1 is not set
>> # CONFIG_IXGB is not set
>> # CONFIG_S2IO is not set
>>
>> #
>> # Token Ring devices
>> #
>> # CONFIG_TR is not set
>>
>> #
>> # Wireless LAN (non-hamradio)
>> #
>> # CONFIG_NET_RADIO is not set
>>
>> #
>> # Wan interfaces
>> #
>> # CONFIG_WAN is not set
>> # CONFIG_FDDI is not set
>> # CONFIG_HIPPI is not set
>> # CONFIG_PPP is not set
>> # CONFIG_SLIP is not set
>> # CONFIG_NET_FC is not set
>> # CONFIG_SHAPER is not set
>> # CONFIG_NETCONSOLE is not set
>> # CONFIG_NETPOLL is not set
>> # CONFIG_NET_POLL_CONTROLLER is not set
>>
>> #
>> # ISDN subsystem
>> #
>> # CONFIG_ISDN is not set
>>
>> #
>> # Telephony Support
>> #
>> # CONFIG_PHONE is not set
>>
>> #
>> # Input device support
>> #
>> CONFIG_INPUT=y
>>
>> #
>> # Userland interfaces
>> #
>> # CONFIG_INPUT_MOUSEDEV is not set
>> # CONFIG_INPUT_JOYDEV is not set
>> # CONFIG_INPUT_TSDEV is not set
>> # CONFIG_INPUT_EVDEV is not set
>> # CONFIG_INPUT_EVBUG is not set
>>
>> #
>> # Input Device Drivers
>> #
>> CONFIG_INPUT_KEYBOARD=y
>> CONFIG_KEYBOARD_ATKBD=y
>> # CONFIG_KEYBOARD_SUNKBD is not set
>> # CONFIG_KEYBOARD_LKKBD is not set
>> # CONFIG_KEYBOARD_XTKBD is not set
>> # CONFIG_KEYBOARD_NEWTON is not set
>> # CONFIG_INPUT_MOUSE is not set
>> # CONFIG_INPUT_JOYSTICK is not set
>> # CONFIG_INPUT_TOUCHSCREEN is not set
>> # CONFIG_INPUT_MISC is not set
>>
>> #
>> # Hardware I/O ports
>> #
>> CONFIG_SERIO=y
>> CONFIG_SERIO_I8042=y
>> # CONFIG_SERIO_SERPORT is not set
>> # CONFIG_SERIO_CT82C710 is not set
>> # CONFIG_SERIO_PCIPS2 is not set
>> CONFIG_SERIO_LIBPS2=y
>> # CONFIG_SERIO_RAW is not set
>> # CONFIG_GAMEPORT is not set
>>
>> #
>> # Character devices
>> #
>> CONFIG_VT=y
>> CONFIG_VT_CONSOLE=y
>> CONFIG_HW_CONSOLE=y
>> # CONFIG_SERIAL_NONSTANDARD is not set
>>
>> #
>> # Serial drivers
>> #
>> CONFIG_SERIAL_8250=y
>> CONFIG_SERIAL_8250_CONSOLE=y
>> # CONFIG_SERIAL_8250_ACPI is not set
>> CONFIG_SERIAL_8250_NR_UARTS=4
>> CONFIG_SERIAL_8250_RUNTIME_UARTS=4
>> CONFIG_SERIAL_8250_EXTENDED=y
>> # CONFIG_SERIAL_8250_MANY_PORTS is not set
>> CONFIG_SERIAL_8250_SHARE_IRQ=y
>> # CONFIG_SERIAL_8250_DETECT_IRQ is not set
>> # CONFIG_SERIAL_8250_RSA is not set
>>
>> #
>> # Non-8250 serial port support
>> #
>> CONFIG_SERIAL_CORE=y
>> CONFIG_SERIAL_CORE_CONSOLE=y
>> # CONFIG_SERIAL_JSM is not set
>> CONFIG_UNIX98_PTYS=y
>> # CONFIG_LEGACY_PTYS is not set
>>
>> #
>> # IPMI
>> #
>> # CONFIG_IPMI_HANDLER is not set
>>
>> #
>> # Watchdog Cards
>> #
>> CONFIG_WATCHDOG=y
>> CONFIG_WATCHDOG_NOWAYOUT=y
>>
>> #
>> # Watchdog Device Drivers
>> #
>> CONFIG_SOFT_WATCHDOG=m
>> # CONFIG_ACQUIRE_WDT is not set
>> # CONFIG_ADVANTECH_WDT is not set
>> # CONFIG_ALIM1535_WDT is not set
>> # CONFIG_ALIM7101_WDT is not set
>> # CONFIG_SC520_WDT is not set
>> # CONFIG_EUROTECH_WDT is not set
>> # CONFIG_IB700_WDT is not set
>> # CONFIG_IBMASR is not set
>> # CONFIG_WAFER_WDT is not set
>> # CONFIG_I6300ESB_WDT is not set
>> # CONFIG_I8XX_TCO is not set
>> # CONFIG_SC1200_WDT is not set
>> # CONFIG_60XX_WDT is not set
>> # CONFIG_SBC8360_WDT is not set
>> # CONFIG_CPU5_WDT is not set
>> # CONFIG_W83627HF_WDT is not set
>> # CONFIG_W83877F_WDT is not set
>> # CONFIG_W83977F_WDT is not set
>> # CONFIG_MACHZ_WDT is not set
>> # CONFIG_SBC_EPX_C3_WATCHDOG is not set
>>
>> #
>> # PCI-based Watchdog Cards
>> #
>> # CONFIG_PCIPCWATCHDOG is not set
>> # CONFIG_WDTPCI is not set
>>
>> #
>> # USB-based Watchdog Cards
>> #
>> # CONFIG_USBPCWATCHDOG is not set
>> CONFIG_HW_RANDOM=y
>> CONFIG_NVRAM=y
>> CONFIG_RTC=y
>> # CONFIG_DTLK is not set
>> # CONFIG_R3964 is not set
>> # CONFIG_APPLICOM is not set
>> # CONFIG_SONYPI is not set
>>
>> #
>> # Ftape, the floppy tape device driver
>> #
>> # CONFIG_AGP is not set
>> # CONFIG_DRM is not set
>> # CONFIG_MWAVE is not set
>> # CONFIG_CS5535_GPIO is not set
>> # CONFIG_RAW_DRIVER is not set
>> # CONFIG_HPET is not set
>> # CONFIG_HANGCHECK_TIMER is not set
>>
>> #
>> # TPM devices
>> #
>> # CONFIG_TCG_TPM is not set
>> # CONFIG_TELCLOCK is not set
>>
>> #
>> # I2C support
>> #
>> CONFIG_I2C=y
>> CONFIG_I2C_CHARDEV=y
>>
>> #
>> # I2C Algorithms
>> #
>> # CONFIG_I2C_ALGOBIT is not set
>> # CONFIG_I2C_ALGOPCF is not set
>> # CONFIG_I2C_ALGOPCA is not set
>>
>> #
>> # I2C Hardware Bus support
>> #
>> # CONFIG_I2C_ALI1535 is not set
>> # CONFIG_I2C_ALI1563 is not set
>> # CONFIG_I2C_ALI15X3 is not set
>> # CONFIG_I2C_AMD756 is not set
>> # CONFIG_I2C_AMD8111 is not set
>> CONFIG_I2C_I801=y
>> # CONFIG_I2C_I810 is not set
>> # CONFIG_I2C_PIIX4 is not set
>> CONFIG_I2C_ISA=y
>> # CONFIG_I2C_NFORCE2 is not set
>> # CONFIG_I2C_PARPORT_LIGHT is not set
>> # CONFIG_I2C_PROSAVAGE is not set
>> # CONFIG_I2C_SAVAGE4 is not set
>> # CONFIG_SCx200_ACB is not set
>> # CONFIG_I2C_SIS5595 is not set
>> # CONFIG_I2C_SIS630 is not set
>> # CONFIG_I2C_SIS96X is not set
>> # CONFIG_I2C_STUB is not set
>> # CONFIG_I2C_VIA is not set
>> # CONFIG_I2C_VIAPRO is not set
>> # CONFIG_I2C_VOODOO3 is not set
>> # CONFIG_I2C_PCA_ISA is not set
>>
>> #
>> # Miscellaneous I2C Chip support
>> #
>> # CONFIG_SENSORS_DS1337 is not set
>> # CONFIG_SENSORS_DS1374 is not set
>> # CONFIG_SENSORS_EEPROM is not set
>> # CONFIG_SENSORS_PCF8574 is not set
>> CONFIG_SENSORS_PCA9551=m
>> # CONFIG_SENSORS_PCA9539 is not set
>> # CONFIG_SENSORS_PCF8591 is not set
>> # CONFIG_SENSORS_RTC8564 is not set
>> # CONFIG_SENSORS_MAX6875 is not set
>> # CONFIG_RTC_X1205_I2C is not set
>> # CONFIG_I2C_DEBUG_CORE is not set
>> # CONFIG_I2C_DEBUG_ALGO is not set
>> # CONFIG_I2C_DEBUG_BUS is not set
>> # CONFIG_I2C_DEBUG_CHIP is not set
>>
>> #
>> # SPI support
>> #
>> # CONFIG_SPI is not set
>> # CONFIG_SPI_MASTER is not set
>>
>> #
>> # Dallas's 1-wire bus
>> #
>> # CONFIG_W1 is not set
>>
>> #
>> # Hardware Monitoring support
>> #
>> CONFIG_HWMON=y
>> CONFIG_HWMON_VID=y
>> # CONFIG_SENSORS_ADM1021 is not set
>> # CONFIG_SENSORS_ADM1025 is not set
>> # CONFIG_SENSORS_ADM1026 is not set
>> # CONFIG_SENSORS_ADM1031 is not set
>> # CONFIG_SENSORS_ADM9240 is not set
>> # CONFIG_SENSORS_ASB100 is not set
>> # CONFIG_SENSORS_ATXP1 is not set
>> # CONFIG_SENSORS_DS1621 is not set
>> # CONFIG_SENSORS_F71805F is not set
>> # CONFIG_SENSORS_FSCHER is not set
>> # CONFIG_SENSORS_FSCPOS is not set
>> # CONFIG_SENSORS_GL518SM is not set
>> # CONFIG_SENSORS_GL520SM is not set
>> # CONFIG_SENSORS_IT87 is not set
>> # CONFIG_SENSORS_LM63 is not set
>> # CONFIG_SENSORS_LM75 is not set
>> # CONFIG_SENSORS_LM77 is not set
>> # CONFIG_SENSORS_LM78 is not set
>> # CONFIG_SENSORS_LM80 is not set
>> # CONFIG_SENSORS_LM83 is not set
>> # CONFIG_SENSORS_LM85 is not set
>> # CONFIG_SENSORS_LM87 is not set
>> # CONFIG_SENSORS_LM90 is not set
>> # CONFIG_SENSORS_LM92 is not set
>> # CONFIG_SENSORS_MAX1619 is not set
>> # CONFIG_SENSORS_PC87360 is not set
>> # CONFIG_SENSORS_SIS5595 is not set
>> # CONFIG_SENSORS_SMSC47M1 is not set
>> # CONFIG_SENSORS_SMSC47B397 is not set
>> # CONFIG_SENSORS_VIA686A is not set
>> # CONFIG_SENSORS_VT8231 is not set
>> # CONFIG_SENSORS_W83781D is not set
>> CONFIG_SENSORS_W83792D=m
>> # CONFIG_SENSORS_W83L785TS is not set
>> CONFIG_SENSORS_W83627HF=y
>> # CONFIG_SENSORS_W83627EHF is not set
>> # CONFIG_SENSORS_HDAPS is not set
>> # CONFIG_HWMON_DEBUG_CHIP is not set
>>
>> #
>> # Misc devices
>> #
>> # CONFIG_IBM_ASM is not set
>>
>> #
>> # Multimedia Capabilities Port drivers
>> #
>>
>> #
>> # Multimedia devices
>> #
>> # CONFIG_VIDEO_DEV is not set
>>
>> #
>> # Digital Video Broadcasting Devices
>> #
>> # CONFIG_DVB is not set
>>
>> #
>> # Graphics support
>> #
>> # CONFIG_FB is not set
>> # CONFIG_VIDEO_SELECT is not set
>>
>> #
>> # Console display driver support
>> #
>> CONFIG_VGA_CONSOLE=y
>> CONFIG_DUMMY_CONSOLE=y
>>
>> #
>> # Sound
>> #
>> # CONFIG_SOUND is not set
>>
>> #
>> # USB support
>> #
>> CONFIG_USB_ARCH_HAS_HCD=y
>> CONFIG_USB_ARCH_HAS_OHCI=y
>> CONFIG_USB=y
>> # CONFIG_USB_DEBUG is not set
>>
>> #
>> # Miscellaneous USB options
>> #
>> CONFIG_USB_DEVICEFS=y
>> # CONFIG_USB_BANDWIDTH is not set
>> # CONFIG_USB_DYNAMIC_MINORS is not set
>> # CONFIG_USB_SUSPEND is not set
>> # CONFIG_USB_OTG is not set
>>
>> #
>> # USB Host Controller Drivers
>> #
>> CONFIG_USB_EHCI_HCD=y
>> # CONFIG_USB_EHCI_SPLIT_ISO is not set
>> # CONFIG_USB_EHCI_ROOT_HUB_TT is not set
>> # CONFIG_USB_ISP116X_HCD is not set
>> # CONFIG_USB_OHCI_HCD is not set
>> # CONFIG_USB_UHCI_HCD is not set
>> # CONFIG_USB_SL811_HCD is not set
>>
>> #
>> # USB Device Class drivers
>> #
>> # CONFIG_USB_ACM is not set
>> # CONFIG_USB_PRINTER is not set
>>
>> #
>> # NOTE: USB_STORAGE enables SCSI, and 'SCSI disk support'
>> #
>>
>> #
>> # may also be needed; see USB_STORAGE Help for more information
>> #
>> CONFIG_USB_STORAGE=y
>> # CONFIG_USB_STORAGE_DEBUG is not set
>> # CONFIG_USB_STORAGE_DATAFAB is not set
>> CONFIG_USB_STORAGE_FREECOM=y
>> # CONFIG_USB_STORAGE_DPCM is not set
>> # CONFIG_USB_STORAGE_USBAT is not set
>> # CONFIG_USB_STORAGE_SDDR09 is not set
>> # CONFIG_USB_STORAGE_SDDR55 is not set
>> # CONFIG_USB_STORAGE_JUMPSHOT is not set
>> # CONFIG_USB_STORAGE_ALAUDA is not set
>> CONFIG_USB_LIBUSUAL=y
>>
>> #
>> # USB Input Devices
>> #
>> CONFIG_USB_HID=y
>> CONFIG_USB_HIDINPUT=y
>> # CONFIG_USB_HIDINPUT_POWERBOOK is not set
>> # CONFIG_HID_FF is not set
>> # CONFIG_USB_HIDDEV is not set
>> # CONFIG_USB_AIPTEK is not set
>> # CONFIG_USB_WACOM is not set
>> # CONFIG_USB_ACECAD is not set
>> # CONFIG_USB_KBTAB is not set
>> # CONFIG_USB_POWERMATE is not set
>> # CONFIG_USB_MTOUCH is not set
>> # CONFIG_USB_ITMTOUCH is not set
>> # CONFIG_USB_EGALAX is not set
>> # CONFIG_USB_YEALINK is not set
>> # CONFIG_USB_XPAD is not set
>> # CONFIG_USB_ATI_REMOTE is not set
>> # CONFIG_USB_ATI_REMOTE2 is not set
>> # CONFIG_USB_KEYSPAN_REMOTE is not set
>> # CONFIG_USB_APPLETOUCH is not set
>>
>> #
>> # USB Imaging devices
>> #
>> # CONFIG_USB_MDC800 is not set
>> # CONFIG_USB_MICROTEK is not set
>>
>> #
>> # USB Multimedia devices
>> #
>> # CONFIG_USB_DABUSB is not set
>>
>> #
>> # Video4Linux support is needed for USB Multimedia device support
>> #
>>
>> #
>> # USB Network Adapters
>> #
>> # CONFIG_USB_CATC is not set
>> # CONFIG_USB_KAWETH is not set
>> # CONFIG_USB_PEGASUS is not set
>> # CONFIG_USB_RTL8150 is not set
>> # CONFIG_USB_USBNET is not set
>> # CONFIG_USB_MON is not set
>>
>> #
>> # USB port drivers
>> #
>>
>> #
>> # USB Serial Converter support
>> #
>> # CONFIG_USB_SERIAL is not set
>>
>> #
>> # USB Miscellaneous drivers
>> #
>> # CONFIG_USB_EMI62 is not set
>> # CONFIG_USB_EMI26 is not set
>> # CONFIG_USB_AUERSWALD is not set
>> # CONFIG_USB_RIO500 is not set
>> # CONFIG_USB_LEGOTOWER is not set
>> # CONFIG_USB_LCD is not set
>> # CONFIG_USB_LED is not set
>> # CONFIG_USB_CYTHERM is not set
>> # CONFIG_USB_PHIDGETKIT is not set
>> # CONFIG_USB_PHIDGETSERVO is not set
>> # CONFIG_USB_IDMOUSE is not set
>> # CONFIG_USB_SISUSBVGA is not set
>> # CONFIG_USB_LD is not set
>> # CONFIG_USB_TEST is not set
>>
>> #
>> # USB DSL modem support
>> #
>>
>> #
>> # USB Gadget Support
>> #
>> # CONFIG_USB_GADGET is not set
>>
>> #
>> # MMC/SD Card support
>> #
>> # CONFIG_MMC is not set
>>
>> #
>> # InfiniBand support
>> #
>> # CONFIG_INFINIBAND is not set
>>
>> #
>> # EDAC - error detection and reporting (RAS) (EXPERIMENTAL)
>> #
>> CONFIG_EDAC=y
>>
>> #
>> # Reporting subsystems
>> #
>> # CONFIG_EDAC_DEBUG is not set
>> CONFIG_EDAC_MM_EDAC=y
>> # CONFIG_EDAC_AMD76X is not set
>> # CONFIG_EDAC_E7XXX is not set
>> CONFIG_EDAC_E752X=y
>> # CONFIG_EDAC_I82875P is not set
>> # CONFIG_EDAC_I82860 is not set
>> # CONFIG_EDAC_R82600 is not set
>> CONFIG_EDAC_POLL=y
>>
>> #
>> # File systems
>> #
>> CONFIG_EXT2_FS=y
>> CONFIG_EXT2_FS_XATTR=y
>> CONFIG_EXT2_FS_POSIX_ACL=y
>> # CONFIG_EXT2_FS_SECURITY is not set
>> # CONFIG_EXT2_FS_XIP is not set
>> CONFIG_EXT3_FS=y
>> CONFIG_EXT3_FS_XATTR=y
>> CONFIG_EXT3_FS_POSIX_ACL=y
>> # CONFIG_EXT3_FS_SECURITY is not set
>> CONFIG_JBD=y
>> # CONFIG_JBD_DEBUG is not set
>> CONFIG_FS_MBCACHE=y
>> # CONFIG_REISERFS_FS is not set
>> # CONFIG_JFS_FS is not set
>> CONFIG_FS_POSIX_ACL=y
>> # CONFIG_XFS_FS is not set
>> # CONFIG_OCFS2_FS is not set
>> # CONFIG_MINIX_FS is not set
>> # CONFIG_ROMFS_FS is not set
>> # CONFIG_INOTIFY is not set
>> # CONFIG_QUOTA is not set
>> # CONFIG_DNOTIFY is not set
>> # CONFIG_AUTOFS_FS is not set
>> # CONFIG_AUTOFS4_FS is not set
>> # CONFIG_FUSE_FS is not set
>>
>> #
>> # CD-ROM/DVD Filesystems
>> #
>> CONFIG_ISO9660_FS=y
>> CONFIG_JOLIET=y
>> # CONFIG_ZISOFS is not set
>> # CONFIG_UDF_FS is not set
>>
>> #
>> # DOS/FAT/NT Filesystems
>> #
>> CONFIG_FAT_FS=y
>> CONFIG_MSDOS_FS=y
>> CONFIG_VFAT_FS=y
>> CONFIG_FAT_DEFAULT_CODEPAGE=437
>> CONFIG_FAT_DEFAULT_IOCHARSET="iso8859-1"
>> # CONFIG_NTFS_FS is not set
>>
>> #
>> # Pseudo filesystems
>> #
>> CONFIG_PROC_FS=y
>> # CONFIG_PROC_KCORE is not set
>> CONFIG_SYSFS=y
>> CONFIG_TMPFS=y
>> CONFIG_HUGETLBFS=y
>> CONFIG_HUGETLB_PAGE=y
>> CONFIG_RAMFS=y
>> CONFIG_RELAYFS_FS=y
>> # CONFIG_CONFIGFS_FS is not set
>>
>> #
>> # Miscellaneous filesystems
>> #
>> # CONFIG_ADFS_FS is not set
>> # CONFIG_AFFS_FS is not set
>> # CONFIG_HFS_FS is not set
>> # CONFIG_HFSPLUS_FS is not set
>> # CONFIG_BEFS_FS is not set
>> # CONFIG_BFS_FS is not set
>> # CONFIG_EFS_FS is not set
>> # CONFIG_CRAMFS is not set
>> # CONFIG_VXFS_FS is not set
>> # CONFIG_HPFS_FS is not set
>> # CONFIG_QNX4FS_FS is not set
>> # CONFIG_SYSV_FS is not set
>> # CONFIG_UFS_FS is not set
>>
>> #
>> # Network File Systems
>> #
>> CONFIG_NFS_FS=y
>> CONFIG_NFS_V3=y
>> # CONFIG_NFS_V3_ACL is not set
>> # CONFIG_NFS_V4 is not set
>> # CONFIG_NFS_DIRECTIO is not set
>> # CONFIG_NFSD is not set
>> CONFIG_LOCKD=y
>> CONFIG_LOCKD_V4=y
>> CONFIG_NFS_COMMON=y
>> CONFIG_SUNRPC=y
>> # CONFIG_RPCSEC_GSS_KRB5 is not set
>> # CONFIG_RPCSEC_GSS_SPKM3 is not set
>> # CONFIG_SMB_FS is not set
>> # CONFIG_CIFS is not set
>> # CONFIG_NCP_FS is not set
>> # CONFIG_CODA_FS is not set
>> # CONFIG_AFS_FS is not set
>> # CONFIG_9P_FS is not set
>>
>> #
>> # Partition Types
>> #
>> # CONFIG_PARTITION_ADVANCED is not set
>> CONFIG_MSDOS_PARTITION=y
>>
>> #
>> # Native Language Support
>> #
>> CONFIG_NLS=y
>> CONFIG_NLS_DEFAULT="UTF-8"
>> CONFIG_NLS_CODEPAGE_437=y
>> # CONFIG_NLS_CODEPAGE_737 is not set
>> # CONFIG_NLS_CODEPAGE_775 is not set
>> # CONFIG_NLS_CODEPAGE_850 is not set
>> # CONFIG_NLS_CODEPAGE_852 is not set
>> # CONFIG_NLS_CODEPAGE_855 is not set
>> # CONFIG_NLS_CODEPAGE_857 is not set
>> # CONFIG_NLS_CODEPAGE_860 is not set
>> # CONFIG_NLS_CODEPAGE_861 is not set
>> # CONFIG_NLS_CODEPAGE_862 is not set
>> # CONFIG_NLS_CODEPAGE_863 is not set
>> # CONFIG_NLS_CODEPAGE_864 is not set
>> # CONFIG_NLS_CODEPAGE_865 is not set
>> # CONFIG_NLS_CODEPAGE_866 is not set
>> # CONFIG_NLS_CODEPAGE_869 is not set
>> # CONFIG_NLS_CODEPAGE_936 is not set
>> # CONFIG_NLS_CODEPAGE_950 is not set
>> # CONFIG_NLS_CODEPAGE_932 is not set
>> # CONFIG_NLS_CODEPAGE_949 is not set
>> # CONFIG_NLS_CODEPAGE_874 is not set
>> # CONFIG_NLS_ISO8859_8 is not set
>> # CONFIG_NLS_CODEPAGE_1250 is not set
>> # CONFIG_NLS_CODEPAGE_1251 is not set
>> CONFIG_NLS_ASCII=y
>> CONFIG_NLS_ISO8859_1=y
>> # CONFIG_NLS_ISO8859_2 is not set
>> # CONFIG_NLS_ISO8859_3 is not set
>> # CONFIG_NLS_ISO8859_4 is not set
>> # CONFIG_NLS_ISO8859_5 is not set
>> # CONFIG_NLS_ISO8859_6 is not set
>> # CONFIG_NLS_ISO8859_7 is not set
>> # CONFIG_NLS_ISO8859_9 is not set
>> # CONFIG_NLS_ISO8859_13 is not set
>> # CONFIG_NLS_ISO8859_14 is not set
>> CONFIG_NLS_ISO8859_15=y
>> # CONFIG_NLS_KOI8_R is not set
>> # CONFIG_NLS_KOI8_U is not set
>> CONFIG_NLS_UTF8=y
>>
>> #
>> # Instrumentation Support
>> #
>> # CONFIG_PROFILING is not set
>> # CONFIG_KPROBES is not set
>>
>> #
>> # Kernel hacking
>> #
>> # CONFIG_PRINTK_TIME is not set
>> CONFIG_MAGIC_SYSRQ=y
>> CONFIG_DEBUG_KERNEL=y
>> CONFIG_LOG_BUF_SHIFT=16
>> CONFIG_DETECT_SOFTLOCKUP=y
>> # CONFIG_SCHEDSTATS is not set
>> CONFIG_DEBUG_SLAB=y
>> # CONFIG_DEBUG_PREEMPT is not set
>> CONFIG_DEBUG_MUTEXES=y
>> CONFIG_DEBUG_SPINLOCK=y
>> CONFIG_DEBUG_SPINLOCK_SLEEP=y
>> # CONFIG_DEBUG_KOBJECT is not set
>> CONFIG_DEBUG_BUGVERBOSE=y
>> # CONFIG_DEBUG_INFO is not set
>> # CONFIG_DEBUG_FS is not set
>> CONFIG_DEBUG_VM=y
>> # CONFIG_FRAME_POINTER is not set
>> CONFIG_FORCED_INLINING=y
>> # CONFIG_RCU_TORTURE_TEST is not set
>> CONFIG_EARLY_PRINTK=y
>> CONFIG_DEBUG_STACKOVERFLOW=y
>> # CONFIG_DEBUG_STACK_USAGE is not set
>> CONFIG_DEBUG_PAGEALLOC=y
>> # CONFIG_DEBUG_RODATA is not set
>> CONFIG_4KSTACKS=y
>> CONFIG_X86_FIND_SMP_CONFIG=y
>> CONFIG_X86_MPPARSE=y
>>
>> #
>> # Security options
>> #
>> # CONFIG_KEYS is not set
>> # CONFIG_SECURITY is not set
>>
>> #
>> # Cryptographic options
>> #
>> CONFIG_CRYPTO=y
>> # CONFIG_CRYPTO_HMAC is not set
>> # CONFIG_CRYPTO_NULL is not set
>> # CONFIG_CRYPTO_MD4 is not set
>> CONFIG_CRYPTO_MD5=y
>> # CONFIG_CRYPTO_SHA1 is not set
>> # CONFIG_CRYPTO_SHA256 is not set
>> # CONFIG_CRYPTO_SHA512 is not set
>> # CONFIG_CRYPTO_WP512 is not set
>> # CONFIG_CRYPTO_TGR192 is not set
>> # CONFIG_CRYPTO_DES is not set
>> # CONFIG_CRYPTO_BLOWFISH is not set
>> # CONFIG_CRYPTO_TWOFISH is not set
>> # CONFIG_CRYPTO_SERPENT is not set
>> # CONFIG_CRYPTO_AES is not set
>> # CONFIG_CRYPTO_AES_586 is not set
>> # CONFIG_CRYPTO_CAST5 is not set
>> # CONFIG_CRYPTO_CAST6 is not set
>> # CONFIG_CRYPTO_TEA is not set
>> # CONFIG_CRYPTO_ARC4 is not set
>> # CONFIG_CRYPTO_KHAZAD is not set
>> # CONFIG_CRYPTO_ANUBIS is not set
>> # CONFIG_CRYPTO_DEFLATE is not set
>> # CONFIG_CRYPTO_MICHAEL_MIC is not set
>> CONFIG_CRYPTO_CRC32C=y
>> # CONFIG_CRYPTO_TEST is not set
>>
>> #
>> # Hardware crypto devices
>> #
>> # CONFIG_CRYPTO_DEV_PADLOCK is not set
>>
>> #
>> # Library routines
>> #
>> # CONFIG_CRC_CCITT is not set
>> # CONFIG_CRC16 is not set
>> CONFIG_CRC32=y
>> CONFIG_LIBCRC32C=y
>> CONFIG_GENERIC_HARDIRQS=y
>> CONFIG_GENERIC_IRQ_PROBE=y
>> CONFIG_GENERIC_PENDING_IRQ=y
>> CONFIG_X86_SMP=y
>> CONFIG_X86_HT=y
>> CONFIG_X86_BIOS_REBOOT=y
>> CONFIG_X86_TRAMPOLINE=y
>> CONFIG_KTIME_SCALAR=y
>
> --
> Mark Rustad, [email protected]
>

--
Mark Rustad, [email protected]

2006-03-25 01:24:37

by Chen, Kenneth W

[permalink] [raw]
Subject: RE: 2.6.16 hugetlbfs problem - DEBUG_PAGEALLOC

Mark Rustad wrote on Friday, March 24, 2006 9:52 AM
> I have narrowed this down to DEBUG_PAGEALLOC. If that option is
> enabled, attempts to reference areas mmap-ed from hugetlbfs files
> fault forever. You can see that I had that set in the failing config
> I reported below.

Yeah, it turns out that the debug option is not compatible with hugetlb
page support. That debug option turns off PSE. Once it is turned off in
CR4, cpu will ignore pse bit in the pmd and causing infinite page-not-
present fault :-(

void __init early_cpu_init(void)
{ ...

#ifdef CONFIG_DEBUG_PAGEALLOC
/* pse is not compatible with on-the-fly unmapping,
* disable it even if the cpus claim to support it.
*/
clear_bit(X86_FEATURE_PSE, boot_cpu_data.x86_capability);
disable_pse = 1;
#endif


[patch] mark DEBUG_PAGEALLOC to be mutually exclusive option with
HUGETLBFS. Bug found by Mark Rustad.

Signed-off-by: Ken Chen <[email protected]>


--- ./arch/i386/Kconfig.debug.orig 2006-03-24 17:50:39.000000000 -0800
+++ ./arch/i386/Kconfig.debug 2006-03-24 17:50:58.000000000 -0800
@@ -36,7 +36,7 @@

config DEBUG_PAGEALLOC
bool "Page alloc debugging"
- depends on DEBUG_KERNEL && !SOFTWARE_SUSPEND
+ depends on DEBUG_KERNEL && !SOFTWARE_SUSPEND && !HUGETLBFS
help
Unmap pages from the kernel linear mapping after free_pages().
This results in a large slowdown, but helps to find certain types


2006-03-25 01:48:23

by David Miller

[permalink] [raw]
Subject: Re: 2.6.16 hugetlbfs problem - DEBUG_PAGEALLOC

From: "Chen, Kenneth W" <[email protected]>
Date: Fri, 24 Mar 2006 17:24:41 -0800

> Yeah, it turns out that the debug option is not compatible with hugetlb
> page support. That debug option turns off PSE. Once it is turned off in
> CR4, cpu will ignore pse bit in the pmd and causing infinite page-not-
> present fault :-(

Thanks for tracking this down.

2006-03-25 02:57:12

by Andrew Morton

[permalink] [raw]
Subject: Re: 2.6.16 hugetlbfs problem - DEBUG_PAGEALLOC

"Chen, Kenneth W" <[email protected]> wrote:
>
> Mark Rustad wrote on Friday, March 24, 2006 9:52 AM
> > I have narrowed this down to DEBUG_PAGEALLOC. If that option is
> > enabled, attempts to reference areas mmap-ed from hugetlbfs files
> > fault forever. You can see that I had that set in the failing config
> > I reported below.
>
> Yeah, it turns out that the debug option is not compatible with hugetlb
> page support. That debug option turns off PSE. Once it is turned off in
> CR4, cpu will ignore pse bit in the pmd and causing infinite page-not-
> present fault :-(

I wonder if any of the other architectures which implement both these
features might have problems too.

2006-03-25 07:29:04

by Chen, Kenneth W

[permalink] [raw]
Subject: RE: 2.6.16 hugetlbfs problem - DEBUG_PAGEALLOC

Andrew Morton wrote on Friday, March 24, 2006 6:54 PM
> "Chen, Kenneth W" <[email protected]> wrote:
> >
> > Mark Rustad wrote on Friday, March 24, 2006 9:52 AM
> > > I have narrowed this down to DEBUG_PAGEALLOC. If that option is
> > > enabled, attempts to reference areas mmap-ed from hugetlbfs files
> > > fault forever. You can see that I had that set in the failing config
> > > I reported below.
> >
> > Yeah, it turns out that the debug option is not compatible with hugetlb
> > page support. That debug option turns off PSE. Once it is turned off in
> > CR4, cpu will ignore pse bit in the pmd and causing infinite page-not-
> > present fault :-(
>
> I wonder if any of the other architectures which implement both these
> features might have problems too.


Only 32-bit x86 arch implements both. We get away by not having DEBUG_PAGEALLOC
feature on any other arch.

I read the ia32 processor manual, it says the pse flag in CR4 controls
4K/4M mapping in addition to pse bit in page directory entry. But in
PAE mode, cr4.pse is ignored and pse bit in pmd controls 4K/2M mapping.
I was going to verify that on my ia32 box, but apparently, turning on
64G highmem gives me machine reset at boot. (is it a known regression?)

X86-64 surly ignores cr4.pse for 4K/2M mapping. It is solely controlled
by pse bit in pmd.

- Ken

2006-03-25 08:18:55

by Andrew Morton

[permalink] [raw]
Subject: Re: 2.6.16 hugetlbfs problem - DEBUG_PAGEALLOC

"Chen, Kenneth W" <[email protected]> wrote:
>
> Andrew Morton wrote on Friday, March 24, 2006 6:54 PM
> > "Chen, Kenneth W" <[email protected]> wrote:
> > >
> > > Mark Rustad wrote on Friday, March 24, 2006 9:52 AM
> > > > I have narrowed this down to DEBUG_PAGEALLOC. If that option is
> > > > enabled, attempts to reference areas mmap-ed from hugetlbfs files
> > > > fault forever. You can see that I had that set in the failing config
> > > > I reported below.
> > >
> > > Yeah, it turns out that the debug option is not compatible with hugetlb
> > > page support. That debug option turns off PSE. Once it is turned off in
> > > CR4, cpu will ignore pse bit in the pmd and causing infinite page-not-
> > > present fault :-(
> >
> > I wonder if any of the other architectures which implement both these
> > features might have problems too.
>
>
> Only 32-bit x86 arch implements both. We get away by not having DEBUG_PAGEALLOC
> feature on any other arch.

OK, thanks.

> ...
> I was going to verify that on my ia32 box, but apparently, turning on
> 64G highmem gives me machine reset at boot. (is it a known regression?)

Works OK here.

quad:/home/akpm> cat /proc/meminfo
MemTotal: 7251348 kB
MemFree: 7180680 kB
Buffers: 18868 kB
Cached: 20980 kB
SwapCached: 0 kB
Active: 32100 kB
Inactive: 14440 kB
HighTotal: 6422528 kB
HighFree: 6390924 kB
LowTotal: 828820 kB
LowFree: 789756 kB
SwapTotal: 4000040 kB
SwapFree: 4000040 kB
Dirty: 128 kB
Writeback: 0 kB
Mapped: 10112 kB
Slab: 11352 kB
CommitLimit: 7625712 kB
Committed_AS: 15292 kB
PageTables: 520 kB
VmallocTotal: 118776 kB
VmallocUsed: 2180 kB
VmallocChunk: 116356 kB
HugePages_Total: 0
HugePages_Free: 0
HugePages_Rsvd: 0
Hugepagesize: 2048 kB