LinuxLists.cc - Crash 2.6.19

2009-11-19 12:16:07

Subject: Crash 2.6.19

Hi, I really dont know if this is the right mailing list. But I have a
really serious problem with the linux kernel on a production server.
The kernel version is 2.6.19 and the following is my config:

-------------- CUT
#
# Automatically generated make config: don't edit
# Linux kernel version: 2.6.19.2
# Mon Jan 14 09:18:58 2008
#
CONFIG_X86_32=y
CONFIG_GENERIC_TIME=y
CONFIG_LOCKDEP_SUPPORT=y
CONFIG_STACKTRACE_SUPPORT=y
CONFIG_SEMAPHORE_SLEEPERS=y
CONFIG_X86=y
CONFIG_MMU=y
CONFIG_GENERIC_ISA_DMA=y
CONFIG_GENERIC_IOMAP=y
CONFIG_GENERIC_HWEIGHT=y
CONFIG_ARCH_MAY_HAVE_PC_FDC=y
CONFIG_DMI=y
CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"

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

#
# General setup
#
CONFIG_LOCALVERSION="mykernelname2007"
CONFIG_LOCALVERSION_AUTO=y
CONFIG_SWAP=y
CONFIG_SYSVIPC=y
# CONFIG_IPC_NS is not set
CONFIG_POSIX_MQUEUE=y
CONFIG_BSD_PROCESS_ACCT=y
CONFIG_BSD_PROCESS_ACCT_V3=y
# CONFIG_TASKSTATS is not set
# CONFIG_UTS_NS is not set
# CONFIG_AUDIT is not set
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
# CONFIG_CPUSETS is not set
# CONFIG_RELAY is not set
CONFIG_INITRAMFS_SOURCE=""
# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
CONFIG_SYSCTL=y
# CONFIG_EMBEDDED is not set
CONFIG_UID16=y
CONFIG_SYSCTL_SYSCALL=y
CONFIG_KALLSYMS=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_SLAB=y
CONFIG_VM_EVENT_COUNTERS=y
CONFIG_RT_MUTEXES=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 is not set
CONFIG_MODVERSIONS=y
# CONFIG_MODULE_SRCVERSION_ALL is not set
CONFIG_KMOD=y
CONFIG_STOP_MACHINE=y

#
# Block layer
#
CONFIG_BLOCK=y
# CONFIG_LBD is not set
# CONFIG_BLK_DEV_IO_TRACE is not set
# CONFIG_LSF is not set

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

#
# Processor type and features
#
CONFIG_SMP=y
CONFIG_X86_PC=y
# 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 is not set
# CONFIG_X86_ES7000 is not set
# 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 is not set
CONFIG_NR_CPUS=2
CONFIG_SCHED_SMT=y
# CONFIG_SCHED_MC is not set
CONFIG_PREEMPT_NONE=y
# CONFIG_PREEMPT_VOLUNTARY is not set
# CONFIG_PREEMPT is not set
# CONFIG_PREEMPT_BKL is not set
CONFIG_X86_LOCAL_APIC=y
CONFIG_X86_IO_APIC=y
CONFIG_X86_MCE=y
CONFIG_X86_MCE_NONFATAL=y
# CONFIG_X86_MCE_P4THERMAL is not set
CONFIG_VM86=y
# CONFIG_TOSHIBA is not set
# CONFIG_I8K is not set
# CONFIG_X86_REBOOTFIXUPS is not set
# CONFIG_MICROCODE is not set
CONFIG_X86_MSR=y
CONFIG_X86_CPUID=y

#
# Firmware Drivers
#
# CONFIG_EDD is not set
# CONFIG_DELL_RBU is not set
# CONFIG_DCDBAS is not set
# CONFIG_NOHIGHMEM is not set
CONFIG_HIGHMEM4G=y
# CONFIG_HIGHMEM64G is not set
CONFIG_PAGE_OFFSET=0xC0000000
CONFIG_HIGHMEM=y
CONFIG_ARCH_FLATMEM_ENABLE=y
CONFIG_ARCH_SPARSEMEM_ENABLE=y
CONFIG_ARCH_SELECT_MEMORY_MODEL=y
CONFIG_ARCH_POPULATES_NODE_MAP=y
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=y
CONFIG_SPLIT_PTLOCK_CPUS=4
# CONFIG_RESOURCES_64BIT is not set
# CONFIG_HIGHPTE is not set
# CONFIG_MATH_EMULATION is not set
CONFIG_MTRR=y
# CONFIG_EFI is not set
CONFIG_IRQBALANCE=y
# CONFIG_REGPARM is not set
CONFIG_SECCOMP=y
# 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_CRASH_DUMP is not set
CONFIG_PHYSICAL_START=0x100000
# CONFIG_HOTPLUG_CPU is not set
CONFIG_COMPAT_VDSO=y
CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y

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

#
# ACPI (Advanced Configuration and Power Interface) Support
#
CONFIG_ACPI=y
CONFIG_ACPI_AC=y
CONFIG_ACPI_BATTERY=y
CONFIG_ACPI_BUTTON=y
# CONFIG_ACPI_VIDEO is not set
# CONFIG_ACPI_HOTKEY is not set
CONFIG_ACPI_FAN=y
# CONFIG_ACPI_DOCK is not set
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=y
# CONFIG_ACPI_CONTAINER is not set
# CONFIG_ACPI_SBS is not set

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

#
# CPU Frequency scaling
#
# CONFIG_CPU_FREQ is not set

#
# 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_HT_IRQ 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=y
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 is not set
# CONFIG_IP_ADVANCED_ROUTER is not set
CONFIG_IP_FIB_HASH=y
# CONFIG_IP_PNP is not set
# CONFIG_NET_IPIP is not set
# CONFIG_NET_IPGRE is not set
# CONFIG_ARPD is not set
CONFIG_SYN_COOKIES=y
# CONFIG_INET_AH is not set
# CONFIG_INET_ESP is not set
# CONFIG_INET_IPCOMP is not set
# CONFIG_INET_XFRM_TUNNEL is not set
# CONFIG_INET_TUNNEL is not set
# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
# CONFIG_INET_XFRM_MODE_TUNNEL is not set
# CONFIG_INET_XFRM_MODE_BEET is not set
CONFIG_INET_DIAG=y
CONFIG_INET_TCP_DIAG=y
# CONFIG_TCP_CONG_ADVANCED is not set
CONFIG_TCP_CONG_CUBIC=y
CONFIG_DEFAULT_TCP_CONG="cubic"
# CONFIG_IPV6 is not set
# CONFIG_INET6_XFRM_TUNNEL is not set
# CONFIG_INET6_TUNNEL is not set
# CONFIG_NETWORK_SECMARK 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_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_SYS_HYPERVISOR 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=y
# 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 is not set
# CONFIG_BLK_DEV_INITRD is not set
# CONFIG_CDROM_PKTCDVD is not set
# CONFIG_ATA_OVER_ETH is not set

#
# Misc devices
#
# CONFIG_IBM_ASM is not set
# CONFIG_SGI_IOC4 is not set
# CONFIG_TIFM_CORE is not set

#
# ATA/ATAPI/MFM/RLL support
#
CONFIG_IDE=y
CONFIG_BLK_DEV_IDE=y

#
# Please see Documentation/ide.txt for help/info on IDE drives
#
# CONFIG_BLK_DEV_IDE_SATA is not set
# CONFIG_BLK_DEV_HD_IDE is not set
CONFIG_BLK_DEV_IDEDISK=y
# CONFIG_IDEDISK_MULTI_MODE is not set
CONFIG_BLK_DEV_IDECD=y
# CONFIG_BLK_DEV_IDETAPE is not set
# CONFIG_BLK_DEV_IDEFLOPPY is not set
# CONFIG_BLK_DEV_IDESCSI is not set
# CONFIG_IDE_TASK_IOCTL is not set

#
# IDE chipset support/bugfixes
#
CONFIG_IDE_GENERIC=y
# CONFIG_BLK_DEV_CMD640 is not set
CONFIG_BLK_DEV_IDEPCI=y
# CONFIG_IDEPCI_SHARE_IRQ is not set
# CONFIG_BLK_DEV_OFFBOARD is not set
CONFIG_BLK_DEV_GENERIC=y
# CONFIG_BLK_DEV_OPTI621 is not set
# CONFIG_BLK_DEV_RZ1000 is not set
CONFIG_BLK_DEV_IDEDMA_PCI=y
# CONFIG_BLK_DEV_IDEDMA_FORCED is not set
# CONFIG_IDEDMA_PCI_AUTO is not set
# CONFIG_BLK_DEV_AEC62XX is not set
# CONFIG_BLK_DEV_ALI15X3 is not set
# CONFIG_BLK_DEV_AMD74XX is not set
# CONFIG_BLK_DEV_ATIIXP is not set
# CONFIG_BLK_DEV_CMD64X is not set
# CONFIG_BLK_DEV_TRIFLEX is not set
# CONFIG_BLK_DEV_CY82C693 is not set
# CONFIG_BLK_DEV_CS5520 is not set
# CONFIG_BLK_DEV_CS5530 is not set
# CONFIG_BLK_DEV_CS5535 is not set
# CONFIG_BLK_DEV_HPT34X is not set
# CONFIG_BLK_DEV_HPT366 is not set
# CONFIG_BLK_DEV_JMICRON is not set
# CONFIG_BLK_DEV_SC1200 is not set
CONFIG_BLK_DEV_PIIX=y
# CONFIG_BLK_DEV_IT821X is not set
# CONFIG_BLK_DEV_NS87415 is not set
# CONFIG_BLK_DEV_PDC202XX_OLD is not set
# CONFIG_BLK_DEV_PDC202XX_NEW is not set
# CONFIG_BLK_DEV_SVWKS is not set
# CONFIG_BLK_DEV_SIIMAGE is not set
# CONFIG_BLK_DEV_SIS5513 is not set
# CONFIG_BLK_DEV_SLC90E66 is not set
# CONFIG_BLK_DEV_TRM290 is not set
# CONFIG_BLK_DEV_VIA82CXXX is not set
# CONFIG_IDE_ARM is not set
CONFIG_BLK_DEV_IDEDMA=y
# CONFIG_IDEDMA_IVB is not set
# CONFIG_IDEDMA_AUTO is not set
# CONFIG_BLK_DEV_HD is not set

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

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

#
# SCSI Transports
#
# CONFIG_SCSI_SPI_ATTRS is not set
# CONFIG_SCSI_FC_ATTRS is not set
# CONFIG_SCSI_ISCSI_ATTRS is not set
# CONFIG_SCSI_SAS_ATTRS is not set
# CONFIG_SCSI_SAS_LIBSAS is not set

#
# SCSI low-level drivers
#
# CONFIG_ISCSI_TCP is not set
# 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_AIC7XXX is not set
# CONFIG_SCSI_AIC7XXX_OLD is not set
# CONFIG_SCSI_AIC79XX is not set
# CONFIG_SCSI_AIC94XX is not set
# CONFIG_SCSI_DPT_I2O is not set
# CONFIG_SCSI_ADVANSYS is not set
# CONFIG_SCSI_ARCMSR is not set
# CONFIG_MEGARAID_NEWGEN is not set
CONFIG_MEGARAID_LEGACY=y
# CONFIG_MEGARAID_SAS is not set
# CONFIG_SCSI_HPTIOP 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_STEX is not set
# CONFIG_SCSI_SYM53C8XX_2 is not set
# CONFIG_SCSI_IPR is not set
# CONFIG_SCSI_QLOGIC_1280 is not set
# CONFIG_SCSI_QLA_FC is not set
# CONFIG_SCSI_QLA_ISCSI 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

#
# Serial ATA (prod) and Parallel ATA (experimental) drivers
#
CONFIG_ATA=y
# CONFIG_SATA_AHCI is not set
# CONFIG_SATA_SVW is not set
CONFIG_ATA_PIIX=y
# CONFIG_SATA_MV is not set
# CONFIG_SATA_NV is not set
# CONFIG_PDC_ADMA is not set
# CONFIG_SATA_QSTOR is not set
CONFIG_SATA_PROMISE=y
# CONFIG_SATA_SX4 is not set
# CONFIG_SATA_SIL is not set
# CONFIG_SATA_SIL24 is not set
# CONFIG_SATA_SIS is not set
# CONFIG_SATA_ULI is not set
# CONFIG_SATA_VIA is not set
# CONFIG_SATA_VITESSE is not set
CONFIG_SATA_INTEL_COMBINED=y
# CONFIG_PATA_ALI is not set
# CONFIG_PATA_AMD is not set
# CONFIG_PATA_ARTOP is not set
# CONFIG_PATA_ATIIXP is not set
# CONFIG_PATA_CMD64X is not set
# CONFIG_PATA_CS5520 is not set
# CONFIG_PATA_CS5530 is not set
# CONFIG_PATA_CS5535 is not set
# CONFIG_PATA_CYPRESS is not set
# CONFIG_PATA_EFAR is not set
# CONFIG_ATA_GENERIC is not set
# CONFIG_PATA_HPT366 is not set
# CONFIG_PATA_HPT37X is not set
# CONFIG_PATA_HPT3X2N is not set
# CONFIG_PATA_HPT3X3 is not set
# CONFIG_PATA_IT821X is not set
# CONFIG_PATA_JMICRON is not set
# CONFIG_PATA_TRIFLEX is not set
# CONFIG_PATA_MPIIX is not set
# CONFIG_PATA_OLDPIIX is not set
# CONFIG_PATA_NETCELL is not set
# CONFIG_PATA_NS87410 is not set
# CONFIG_PATA_OPTI is not set
# CONFIG_PATA_OPTIDMA is not set
# CONFIG_PATA_PDC_OLD is not set
# CONFIG_PATA_RADISYS is not set
# CONFIG_PATA_RZ1000 is not set
# CONFIG_PATA_SC1200 is not set
# CONFIG_PATA_SERVERWORKS is not set
# CONFIG_PATA_PDC2027X is not set
# CONFIG_PATA_SIL680 is not set
# CONFIG_PATA_SIS is not set
# CONFIG_PATA_VIA is not set
# CONFIG_PATA_WINBOND is not set

#
# Multi-device support (RAID and LVM)
#
CONFIG_MD=y
CONFIG_BLK_DEV_MD=y
# CONFIG_MD_LINEAR is not set
# CONFIG_MD_RAID0 is not set
CONFIG_MD_RAID1=y
# CONFIG_MD_RAID10 is not set
# CONFIG_MD_RAID456 is not set
# CONFIG_MD_MULTIPATH is not set
# CONFIG_MD_FAULTY is not set
CONFIG_BLK_DEV_DM=y
# CONFIG_DM_DEBUG is not set
# CONFIG_DM_CRYPT is not set
# CONFIG_DM_SNAPSHOT is not set
# CONFIG_DM_MIRROR is not set
# CONFIG_DM_ZERO is not set
# CONFIG_DM_MULTIPATH 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=y
# 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 is not set
# CONFIG_NS83820 is not set
# CONFIG_HAMACHI is not set
# CONFIG_YELLOWFIN is not set
CONFIG_R8169=y
# CONFIG_R8169_NAPI 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
# CONFIG_QLA3XXX is not set

#
# Ethernet (10000 Mbit)
#
# CONFIG_CHELSIO_T1 is not set
# CONFIG_IXGB is not set
# CONFIG_S2IO is not set
# CONFIG_MYRI10GE 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
# CONFIG_INPUT_FF_MEMLESS is not set

#
# Userland interfaces
#
CONFIG_INPUT_MOUSEDEV=y
CONFIG_INPUT_MOUSEDEV_PSAUX=y
CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024
CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768
# 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_KEYBOARD_STOWAWAY is not set
CONFIG_INPUT_MOUSE=y
CONFIG_MOUSE_PS2=y
# CONFIG_MOUSE_SERIAL is not set
# CONFIG_MOUSE_VSXXXAA is not set
# CONFIG_INPUT_JOYSTICK is not set
# CONFIG_INPUT_TOUCHSCREEN is not set
CONFIG_INPUT_MISC=y
CONFIG_INPUT_PCSPKR=y
# CONFIG_INPUT_WISTRON_BTNS is not set
# CONFIG_INPUT_UINPUT 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_VT_HW_CONSOLE_BINDING is not set
# CONFIG_SERIAL_NONSTANDARD is not set

#
# Serial drivers
#
# CONFIG_SERIAL_8250 is not set

#
# Non-8250 serial port support
#
# CONFIG_SERIAL_JSM is not set
CONFIG_UNIX98_PTYS=y
CONFIG_LEGACY_PTYS=y
CONFIG_LEGACY_PTY_COUNT=256

#
# IPMI
#
# CONFIG_IPMI_HANDLER is not set

#
# Watchdog Cards
#
# CONFIG_WATCHDOG is not set
# CONFIG_HW_RANDOM is not set
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_PC8736x_GPIO is not set
# CONFIG_NSC_GPIO 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_OCORES 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=y
# CONFIG_SENSORS_PCF8574 is not set
# CONFIG_SENSORS_PCA9539 is not set
# CONFIG_SENSORS_PCF8591 is not set
# CONFIG_SENSORS_MAX6875 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 is not set
# CONFIG_SENSORS_ABITUGURU is not set
# 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_K8TEMP 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_SMSC47M192 is not set
# CONFIG_SENSORS_SMSC47B397 is not set
# CONFIG_SENSORS_VIA686A is not set
# CONFIG_SENSORS_VT1211 is not set
# CONFIG_SENSORS_VT8231 is not set
# CONFIG_SENSORS_W83781D is not set
# CONFIG_SENSORS_W83791D is not set
# CONFIG_SENSORS_W83792D is not set
# CONFIG_SENSORS_W83L785TS is not set
# CONFIG_SENSORS_W83627HF is not set
CONFIG_SENSORS_W83627EHF=y
# CONFIG_SENSORS_HDAPS is not set
# CONFIG_HWMON_DEBUG_CHIP is not set

#
# Multimedia devices
#
# CONFIG_VIDEO_DEV is not set

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

#
# Graphics support
#
# CONFIG_FIRMWARE_EDID is not set
# CONFIG_FB is not set

#
# Console display driver support
#
CONFIG_VGA_CONSOLE=y
# CONFIG_VGACON_SOFT_SCROLLBACK is not set
# CONFIG_VIDEO_SELECT is not set
CONFIG_DUMMY_CONSOLE=y
# CONFIG_BACKLIGHT_LCD_SUPPORT is not set

#
# Sound
#
# CONFIG_SOUND is not set

#
# USB support
#
CONFIG_USB_ARCH_HAS_HCD=y
CONFIG_USB_ARCH_HAS_OHCI=y
CONFIG_USB_ARCH_HAS_EHCI=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_EHCI_TT_NEWSCHED is not set
# CONFIG_USB_ISP116X_HCD is not set
# CONFIG_USB_OHCI_HCD is not set
CONFIG_USB_UHCI_HCD=y
# 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 is not set
# CONFIG_USB_STORAGE_ISD200 is not set
# 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_STORAGE_KARMA is not set
# CONFIG_USB_LIBUSUAL is not set

#
# USB Input Devices
#
CONFIG_USB_HID=y
# CONFIG_USB_HIDINPUT is not set
CONFIG_USB_HIDDEV=y
# 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_TOUCHSCREEN 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 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_MII 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_ADUTUX 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_CYPRESS_CY7C63 is not set
# CONFIG_USB_CYTHERM is not set
# CONFIG_USB_PHIDGET is not set
# CONFIG_USB_IDMOUSE is not set
# CONFIG_USB_FTDI_ELAN is not set
# CONFIG_USB_APPLEDISPLAY is not set
# CONFIG_USB_SISUSBVGA is not set
# CONFIG_USB_LD is not set
# CONFIG_USB_TRANCEVIBRATOR 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

#
# LED devices
#
# CONFIG_NEW_LEDS is not set

#
# LED drivers
#

#
# LED Triggers
#

#
# InfiniBand support
#
# CONFIG_INFINIBAND is not set

#
# EDAC - error detection and reporting (RAS) (EXPERIMENTAL)
#
# CONFIG_EDAC is not set

#
# Real Time Clock
#
# CONFIG_RTC_CLASS is not set

#
# DMA Engine support
#
# CONFIG_DMA_ENGINE is not set

#
# DMA Clients
#

#
# DMA Devices
#

#
# 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 is not set
# CONFIG_EXT4DEV_FS is not set
CONFIG_FS_MBCACHE=y
CONFIG_REISERFS_FS=y
# CONFIG_REISERFS_CHECK is not set
CONFIG_REISERFS_PROC_INFO=y
CONFIG_REISERFS_FS_XATTR=y
CONFIG_REISERFS_FS_POSIX_ACL=y
# CONFIG_REISERFS_FS_SECURITY is not set
# CONFIG_JFS_FS is not set
CONFIG_FS_POSIX_ACL=y
CONFIG_XFS_FS=y
CONFIG_XFS_QUOTA=y
# CONFIG_XFS_SECURITY is not set
CONFIG_XFS_POSIX_ACL=y
# CONFIG_XFS_RT is not set
# CONFIG_GFS2_FS is not set
# CONFIG_OCFS2_FS is not set
# CONFIG_MINIX_FS is not set
# CONFIG_ROMFS_FS is not set
CONFIG_INOTIFY=y
CONFIG_INOTIFY_USER=y
CONFIG_QUOTA=y
# CONFIG_QFMT_V1 is not set
CONFIG_QFMT_V2=y
CONFIG_QUOTACTL=y
CONFIG_DNOTIFY=y
CONFIG_AUTOFS_FS=y
CONFIG_AUTOFS4_FS=y
# 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=850
CONFIG_FAT_DEFAULT_IOCHARSET="iso8859-15"
# CONFIG_NTFS_FS is not set

#
# Pseudo filesystems
#
CONFIG_PROC_FS=y
CONFIG_PROC_KCORE=y
CONFIG_PROC_SYSCTL=y
CONFIG_SYSFS=y
CONFIG_TMPFS=y
# CONFIG_TMPFS_POSIX_ACL is not set
# CONFIG_HUGETLBFS is not set
# CONFIG_HUGETLB_PAGE is not set
CONFIG_RAMFS=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 is not set
# CONFIG_NFSD is not set
CONFIG_SMB_FS=y
CONFIG_SMB_NLS_DEFAULT=y
CONFIG_SMB_NLS_REMOTE="cp850"
CONFIG_CIFS=y
CONFIG_CIFS_STATS=y
CONFIG_CIFS_STATS2=y
# CONFIG_CIFS_WEAK_PW_HASH is not set
CONFIG_CIFS_XATTR=y
CONFIG_CIFS_POSIX=y
# CONFIG_CIFS_DEBUG2 is not set
# CONFIG_CIFS_EXPERIMENTAL 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="UTF8"
# CONFIG_NLS_CODEPAGE_437 is not set
# CONFIG_NLS_CODEPAGE_737 is not set
# CONFIG_NLS_CODEPAGE_775 is not set
CONFIG_NLS_CODEPAGE_850=y
# 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 is not set
# CONFIG_NLS_ISO8859_1 is not set
# 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_TRACE_IRQFLAGS_SUPPORT=y
# CONFIG_PRINTK_TIME is not set
# CONFIG_ENABLE_MUST_CHECK is not set
# CONFIG_MAGIC_SYSRQ is not set
# CONFIG_UNUSED_SYMBOLS is not set
# CONFIG_DEBUG_KERNEL is not set
CONFIG_LOG_BUF_SHIFT=15
CONFIG_DEBUG_BUGVERBOSE=y
# CONFIG_DEBUG_FS is not set
# CONFIG_UNWIND_INFO is not set
# CONFIG_HEADERS_CHECK is not set
CONFIG_EARLY_PRINTK=y
CONFIG_X86_FIND_SMP_CONFIG=y
CONFIG_X86_MPPARSE=y
CONFIG_DOUBLEFAULT=y

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

#
# Cryptographic options
#
# CONFIG_CRYPTO is not set

#
# Library routines
#
# CONFIG_CRC_CCITT is not set
# CONFIG_CRC16 is not set
CONFIG_CRC32=y
# CONFIG_LIBCRC32C is not set
CONFIG_PLIST=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

-------------- CUT

and the following are the kernel log before the crash:

------------- CUT

Nov 19 11:43:15 kernel: Bad page state in process 'smbd'
Nov 19 11:43:15 kernel: page:c10d4880 flags:0x4000000c
mapping:f55eef50 mapcount:0 count:0
Nov 19 11:43:15 kernel: Trying to fix it up, but a reboot is needed
Nov 19 11:43:15 kernel: Backtrace:
Nov 19 11:43:15 kernel: [<c0141183>] bad_page+0x5e/0x91
Nov 19 11:43:15 kernel: [<c014185c>] free_hot_cold_page+0x123/0x134
Nov 19 11:43:15 kernel: [<c027a8d4>] xfs_buf_free+0x38/0xfc
Nov 19 11:43:15 kernel: [<c023b401>] xfs_da_brelse+0x7f/0xc3
Nov 19 11:43:15 kernel: [<c0224aeb>] xfs_attr_fetch+0x28e/0x2bc
Nov 19 11:43:15 kernel: [<c0224c58>] xfs_attr_get+0xb2/0xce
Nov 19 11:43:15 kernel: [<c0224ba6>] xfs_attr_get+0x0/0xce
Nov 19 11:43:15 kernel: [<c021a2fc>] xfs_acl_get_attr+0x53/0x7c
Nov 19 11:43:15 kernel: [<c021a8c7>] xfs_acl_vget+0x43/0x228
Nov 19 11:43:15 kernel: [<c021adf5>] xfs_acl_iaccess+0x188/0x323
Nov 19 11:43:15 kernel: [<c0221a3c>] attr_system_get+0x37/0x6c
Nov 19 11:43:15 kernel: [<c027f63a>] xfs_vn_getxattr+0x7c/0x8c
Nov 19 11:43:15 kernel: [<c0174dd2>] vfs_getxattr+0x50/0x78
Nov 19 11:43:15 kernel: [<c0174e62>] getxattr+0x68/0x109
Nov 19 11:43:15 kernel: [<c0170231>] mntput_no_expire+0x1c/0x77
Nov 19 11:43:15 kernel: [<c0164540>] link_path_walk+0x73/0xe2
Nov 19 11:43:15 kernel: [<c016478d>] do_path_lookup+0x89/0x1d1
Nov 19 11:43:15 kernel: [<c0163530>] getname+0x80/0xb9
Nov 19 11:43:15 kernel: [<c016515e>] __user_walk_fd+0x43/0x4d
Nov 19 11:43:15 kernel: [<c0174fcd>] sys_getxattr+0x3d/0x4f
Nov 19 11:43:15 kernel: [<c0102e9b>] syscall_call+0x7/0xb
Nov 19 11:43:15 kernel: [<c01559fc>] shmem_file_setup+0x1a/0x1ad
Nov 19 11:43:15 kernel: =======================
Nov 19 11:48:55 kernel: Bad page state in process 'smbd'
Nov 19 11:48:55 kernel: page:c10c0e00 flags:0x4000000c
mapping:f746e4d0 mapcount:0 count:0
Nov 19 11:48:55 kernel: Trying to fix it up, but a reboot is needed
Nov 19 11:48:55 kernel: Backtrace:
Nov 19 11:48:55 kernel: [<c0141183>] bad_page+0x5e/0x91
Nov 19 11:48:55 kernel: [<c014185c>] free_hot_cold_page+0x123/0x134
Nov 19 11:48:55 kernel: [<c027a8d4>] xfs_buf_free+0x38/0xfc
Nov 19 11:48:55 kernel: [<c023b401>] xfs_da_brelse+0x7f/0xc3
Nov 19 11:48:55 kernel: [<c0224aeb>] xfs_attr_fetch+0x28e/0x2bc
Nov 19 11:48:55 kernel: [<c0224c58>] xfs_attr_get+0xb2/0xce
Nov 19 11:48:55 kernel: [<c0224ba6>] xfs_attr_get+0x0/0xce
Nov 19 11:48:55 kernel: [<c021a2fc>] xfs_acl_get_attr+0x53/0x7c
Nov 19 11:48:55 kernel: [<c021a8c7>] xfs_acl_vget+0x43/0x228
Nov 19 11:48:55 kernel: [<c021adf5>] xfs_acl_iaccess+0x188/0x323
Nov 19 11:48:55 kernel: [<c0221a3c>] attr_system_get+0x37/0x6c
Nov 19 11:48:55 kernel: [<c027f63a>] xfs_vn_getxattr+0x7c/0x8c
Nov 19 11:48:55 kernel: [<c0174dd2>] vfs_getxattr+0x50/0x78
Nov 19 11:48:55 kernel: [<c0174e62>] getxattr+0x68/0x109
Nov 19 11:48:55 kernel: [<c0170231>] mntput_no_expire+0x1c/0x77
Nov 19 11:48:55 kernel: [<c0164540>] link_path_walk+0x73/0xe2
Nov 19 11:48:55 kernel: [<c016478d>] do_path_lookup+0x89/0x1d1
Nov 19 11:48:55 kernel: [<c0163530>] getname+0x80/0xb9
Nov 19 11:48:55 kernel: [<c016515e>] __user_walk_fd+0x43/0x4d
Nov 19 11:48:55 kernel: [<c0174fcd>] sys_getxattr+0x3d/0x4f
Nov 19 11:48:55 kernel: [<c0102e9b>] syscall_call+0x7/0xb
Nov 19 11:48:55 kernel: =======================
Nov 19 11:48:55 kernel: ReiserFS: warning: is_tree_node: node level 0
does not match to the expected one 1
Nov 19 11:48:55 kernel: ReiserFS: md4: warning: vs-5150:
search_by_key: invalid format found in block 1245223. Fsck?
Nov 19 11:48:55 kernel: ReiserFS: md4: warning: vs-13050:
reiserfs_update_sd: i/o failure occurred trying to update [140 8161
0x0 SD] stat data
Nov 19 11:48:55 kernel: ReiserFS: warning: is_tree_node: node level 0
does not match to the expected one 1
Nov 19 11:48:55 kernel: ReiserFS: md4: warning: vs-5150:
search_by_key: invalid format found in block 1245223. Fsck?
Nov 19 11:48:55 kernel: ReiserFS: md4: warning: vs-13050:
reiserfs_update_sd: i/o failure occurred trying to update [140 8161
0x0 SD] stat data
Nov 19 11:48:55 kernel: ReiserFS: warning: is_tree_node: node level 0
does not match to the expected one 1
Nov 19 11:48:55 kernel: ReiserFS: md4: warning: vs-5150:
search_by_key: invalid format found in block 1245223. Fsck?
Nov 19 11:48:55 kernel: ReiserFS: md4: warning: vs-13050:
reiserfs_update_sd: i/o failure occurred trying to update [140 8161
0x0 SD] stat data
Nov 19 11:48:55 kernel: ReiserFS: warning: is_tree_node: node level 0
does not match to the expected one 1
Nov 19 11:48:55 kernel: ReiserFS: md4: warning: vs-5150:
search_by_key: invalid format found in block 1245223. Fsck?

............ A LOT OF THESE

Nov 19 11:48:55 kernel: ReiserFS: warning: is_tree_node: node level 0
does not match to the expected one 1
Nov 19 11:48:55 kernel: ReiserFS: md4: warning: vs-5150:
search_by_key: invalid format found in block 1245223. Fsck?
Nov 19 11:48:55 kernel: ReiserFS: md4: warning: vs-13050:
reiserfs_update_sd: i/o failure occurred trying to update [140 8161
0x0 SD] stat data
Nov 19 11:48:55 kernel: ReiserFS: warning: is_tree_node: node level 0
does not match to the expected one 1
Nov 19 11:48:55 kernel: ReiserFS: md4: warning: vs-5150:
search_by_key: invalid format found in block 1245223. Fsck?
Nov 19 11:48:55 kernel: ReiserFS: warning: is_tree_node: node level 0
does not match to the expected one 1
Nov 19 11:48:55 kernel: ReiserFS: md4: warning: vs-5150:
search_by_key: invalid format found in block 1245223. Fsck?
Nov 19 11:48:55 kernel: ReiserFS: warning: is_tree_node: node level 0
does not match to the expected one 1
Nov 19 11:48:55 kernel: ReiserFS: md4: warning: vs-5150:
search_by_key: invalid format found in block 1245223. Fsck?
Nov 19 11:48:55 kernel: ReiserFS: md4: warning: vs-13050:
reiserfs_update_sd: i/o failure occurred trying to update [140 8161
0x0 SD] stat data
Nov 19 11:48:57 kernel: Bad page state in process 'smbd'
Nov 19 11:48:57 kernel: page:c10c0e00 flags:0x40000060
mapping:f7411d51 mapcount:1 count:1
Nov 19 11:48:57 kernel: Trying to fix it up, but a reboot is needed
Nov 19 11:48:57 kernel: Backtrace:
Nov 19 11:48:57 kernel: [<c0141183>] bad_page+0x5e/0x91
Nov 19 11:48:57 kernel: [<c0141bcb>] get_page_from_freelist+0x2ee/0x333
Nov 19 11:48:57 kernel: [<c0141c5f>] __alloc_pages+0x4f/0x2df
Nov 19 11:48:57 kernel: [<c022f617>] xfs_bmap_search_multi_extents+0xa8/0xf2
Nov 19 11:48:57 kernel: [<c013cef1>] find_lock_page+0x28/0x8c
Nov 19 11:48:57 kernel: [<c013db69>] find_or_create_page+0xa0/0xb4
Nov 19 11:48:57 kernel: [<c027b5ce>] xfs_buf_get_flags+0x191/0x4d5
Nov 19 11:48:57 kernel: [<c026b48b>] xfs_trans_get_buf+0x122/0x163
Nov 19 11:48:57 kernel: [<c023bd7c>] xfs_da_do_buf+0x710/0x980
Nov 19 11:48:57 kernel: [<c023c0cf>] xfs_da_get_buf+0x3b/0x3f
Nov 19 11:48:57 kernel: [<c02257e8>] xfs_attr_leaf_create+0x49/0x127
Nov 19 11:48:57 kernel: [<c02257e8>] xfs_attr_leaf_create+0x49/0x127
Nov 19 11:48:57 kernel: [<c02276fa>] xfs_attr_shortform_to_leaf+0x132/0x2b3
Nov 19 11:48:57 kernel: [<c025dd1e>] xfs_log_reserve+0x538/0x670
Nov 19 11:48:57 kernel: [<c026bb54>] xfs_trans_log_inode+0x24/0x44
Nov 19 11:48:57 kernel: [<c0226c83>] xfs_attr_shortform_create+0x63/0x6a
Nov 19 11:48:57 kernel: [<c0224354>] xfs_attr_set_int+0x633/0xb3c
Nov 19 11:48:57 kernel: [<c0277bf0>] kmem_zone_alloc+0x60/0xdd
Nov 19 11:48:57 kernel: [<c0224c74>] xfs_attr_set+0x0/0xb6
Nov 19 11:48:57 kernel: [<c021a555>] xfs_acl_set_attr+0xe4/0x119
Nov 19 11:48:57 kernel: [<c021ac32>] xfs_acl_vset+0x186/0x1c1
Nov 19 11:48:57 kernel: [<c0221bfb>] attr_system_set+0x6e/0x86
Nov 19 11:48:57 kernel: [<c017526a>] vfs_setxattr+0x9c/0x136
Nov 19 11:48:57 kernel: [<c017538e>] setxattr+0x8a/0x11d
Nov 19 11:48:57 kernel: [<c0170231>] mntput_no_expire+0x1c/0x77
Nov 19 11:48:57 kernel: [<c0164540>] link_path_walk+0x73/0xe2
Nov 19 11:48:57 kernel: [<c016478d>] do_path_lookup+0x89/0x1d1
Nov 19 11:48:57 kernel: [<c0163530>] getname+0x80/0xb9
Nov 19 11:48:57 kernel: [<c016515e>] __user_walk_fd+0x43/0x4d
Nov 19 11:48:57 kernel: [<c0175503>] sys_setxattr+0x45/0x62
Nov 19 11:48:57 kernel: [<c0102e9b>] syscall_call+0x7/0xb
Nov 19 11:48:57 kernel: [<c01559fc>] shmem_file_setup+0x1a/0x1ad
Nov 19 11:48:57 kernel: =======================
Nov 19 11:48:57 kernel: BUG: unable to handle kernel paging request
at virtual address 00100104
Nov 19 11:48:57 kernel: printing eip:
Nov 19 11:48:57 kernel: c01419c6
Nov 19 11:48:57 kernel: *pde = 00000000
Nov 19 11:48:57 kernel: Oops: 0002 [#1]
Nov 19 11:48:57 kernel: SMP
Nov 19 11:48:57 kernel: Modules linked in: sym53c8xx scsi_transport_spi
Nov 19 11:48:57 kernel: CPU: 0
Nov 19 11:48:57 kernel: EIP: 0060:[<c01419c6>] Tainted: G B VLI
Nov 19 11:48:57 kernel: EFLAGS: 00210002 (2.6.19.2mykernelname #1)
Nov 19 11:48:57 kernel: EIP is at get_page_from_freelist+0xe9/0x333
Nov 19 11:48:57 kernel: eax: c10c0e18 ebx: c0452a00 ecx: 00100100
edx: 00200200
Nov 19 11:48:57 kernel: esi: c10c0e00 edi: 00000001 ebp: c0452980
esp: d0931c94
Nov 19 11:48:57 kernel: ds: 007b es: 007b ss: 0068
Nov 19 11:48:57 kernel: Process smbd (pid: 17420, ti=d0930000
task=c1ab8550 task.ti=d0930000)
Nov 19 11:48:57 kernel: Stack: c0452980 00000000 00000492 00000002
00000044 00000001 00000001 00000000
Nov 19 11:48:57 kernel: 00000000 00000002 00000000 000200d2 c04530a4
00200203 00000000 ffffa5a5
Nov 19 11:48:57 kernel: 5a5a5a5a 00000000 00000001 c04530a0 c1ab8550
000200d2 00000000 c0141c5f
Nov 19 11:48:57 kernel: Call Trace:
Nov 19 11:48:57 kernel: [<c0141c5f>] __alloc_pages+0x4f/0x2df
Nov 19 11:48:57 kernel: [<c013cef1>] find_lock_page+0x28/0x8c
Nov 19 11:48:57 kernel: [<c013db69>] find_or_create_page+0xa0/0xb4
Nov 19 11:48:57 kernel: [<c017cafa>] block_truncate_page+0x6b/0x258
Nov 19 11:48:57 kernel: [<c027eed9>] xfs_vn_truncate+0x2b/0x2f
Nov 19 11:48:57 kernel: [<c0278253>] xfs_get_blocks+0x0/0x2b
Nov 19 11:48:57 kernel: [<c014afbb>] vmtruncate+0xae/0x13b
Nov 19 11:48:57 kernel: [<c0271fc5>] xfs_setattr+0x7e2/0x1247
Nov 19 11:48:57 kernel: [<c027f4b0>] xfs_vn_setattr+0x101/0x15a
Nov 19 11:48:57 kernel: [<c016ec0c>] notify_change+0xc9/0x315
Nov 19 11:48:57 kernel: [<c0159b29>] do_truncate+0x62/0x79
Nov 19 11:48:57 kernel: [<c0159f50>] do_sys_ftruncate+0xe6/0x14c
Nov 19 11:48:57 kernel: [<c0159fd1>] sys_ftruncate64+0x1b/0x1f
Nov 19 11:48:57 kernel: [<c0102e9b>] syscall_call+0x7/0xb
Nov 19 11:48:57 kernel: [<c01559fc>] shmem_file_setup+0x1a/0x1ad
Nov 19 11:48:57 kernel: =======================
Nov 19 11:48:57 kernel: Code: 0f 94 c0 89 44 24 48 8b 44 24 1c 01 c0
01 c0 03 44 24 1c 01 c0 01 c0 89 44 24 20 e9 9a 00 00 00 8b 43 0c 8d
70 e8 8b 08 8b 50 04 <89> 51 04 89 0a c7 00 00 01 10 00 c7 40 04 00 02
20 00 83 2b 01
Nov 19 11:48:57 kernel: EIP: [<c01419c6>]
get_page_from_freelist+0xe9/0x333 SS:ESP 0068:d0931c94
Nov 19 11:49:02 kernel: <0>Eeek! page_mapcount(page) went negative! (-1)
Nov 19 11:49:02 kernel: page->flags = 40000070
Nov 19 11:49:02 kernel: page->count = 2
Nov 19 11:49:02 kernel: page->mapping = f55eef50
Nov 19 11:49:02 kernel: ------------[ cut here ]------------
Nov 19 11:49:02 kernel: kernel BUG at mm/rmap.c:581!
Nov 19 11:49:02 kernel: invalid opcode: 0000 [#2]
Nov 19 11:49:02 kernel: SMP
Nov 19 11:49:02 kernel: Modules linked in: sym53c8xx scsi_transport_spi
Nov 19 11:49:02 kernel: CPU: 0
Nov 19 11:49:02 kernel: EIP: 0060:[<c014eff2>] Tainted: G B VLI
Nov 19 11:49:02 kernel: EFLAGS: 00210286 (2.6.19.2mykernelname #1)
Nov 19 11:49:02 kernel: EIP is at page_remove_rmap+0x92/0xa1
Nov 19 11:49:02 kernel: eax: 0000001e ebx: c10c0e00 ecx: ffffffff
edx: 00200046
Nov 19 11:49:02 kernel: esi: c10c0e00 edi: 08416000 ebp: 00000020
esp: e958dea0
Nov 19 11:49:02 kernel: ds: 007b es: 007b ss: 0068
Nov 19 11:49:02 kernel: Process smbd (pid: 20205, ti=e958c000
task=c5f36a70 task.ti=e958c000)
Nov 19 11:49:02 kernel: Stack: c03f3ca6 f55eef50 d957d058 c014904b
c10c0e00 08416000 06070067 00000000
Nov 19 11:49:02 kernel: 00000001 084ff000 f3615084 e8607e40 c1806940
ffffffed ffffffff e8607e84
Nov 19 11:49:02 kernel: f3615084 084fefff 0023edf2 084ff000 00000000
e958df24 d769bbfc e8607e40
Nov 19 11:49:02 kernel: Call Trace:
Nov 19 11:49:02 kernel: [<c014904b>] unmap_vmas+0x295/0x566
Nov 19 11:49:02 kernel: [<c014c0a3>] exit_mmap+0x8b/0x118
Nov 19 11:49:02 kernel: [<c0119166>] mmput+0x29/0x8c
Nov 19 11:49:02 kernel: [<c011cb59>] exit_mm+0x8b/0xf8
Nov 19 11:49:02 kernel: [<c011e12d>] do_exit+0xf4/0x8c6
Nov 19 11:49:02 kernel: [<c0113613>] do_page_fault+0x501/0x64e
Nov 19 11:49:02 kernel: [<c011e92e>] do_group_exit+0x2f/0x81
Nov 19 11:49:02 kernel: [<c0102e9b>] syscall_call+0x7/0xb
Nov 19 11:49:02 kernel: [<c03d007b>] wait_for_completion_timeout+0x81/0xc3
Nov 19 11:49:02 kernel: =======================
Nov 19 11:49:02 kernel: Code: f6 c4 40 75 30 8b 42 04 89 44 24 04 c7
04 24 8f 3c 3f c0 e8 0a cf fc ff 8b 43 10 89 44 24 04 c7 04 24 a6 3c
3f c0 e8 f7 ce fc ff <0f> 0b 45 02 6d 3c 3f c0 eb 85 8b 53 0c eb cb 55
57 56 53 83 ec
Nov 19 11:49:02 kernel: EIP: [<c014eff2>] page_remove_rmap+0x92/0xa1
SS:ESP 0068:e958dea0
Nov 19 11:49:02 kernel: <1>Fixing recursive fault but reboot is needed!

------------- CUT

The server is a fileserver with 6 raid 1 disks
the filesystems are ext2 (/boot), reiserfs (/usr, /var, /tmp, /home,
/) and xfs (/srv, /srv2, /srv3)

The server has also a *unused* scsi card for dat with the following lkm:
Module Size Used by
sym53c8xx 74260 0
scsi_transport_spi 25088 1 sym53c8xx

I have 2 or 3 crash per day in the last 4 - 5 days.
Before those it was a uptime of 200 days.

Anyone could help me ?

bye
lewis

2009-11-19 12:41:59

by Ahmed, Subhan (UK)

[permalink] [raw]

Subject: Kernel 2.6.27.7-9 for Suse 11.1 help required with CPU Clock freq/speed/ticks

Hi All,

I know this is not email list for programming questions but it relates
to Kernel as well, in fact relying on kernel. Could someone please
through a light or guide me to the right direction.

Problem Statement: High CPU clock speed/freq
Requirement: Obtain a stable CPU clock ticks/speed/freq on
Suse 11.1 with kernel 2.6.27.7-9
Questions: Please refer to the bottom of this page
Artifacts in Use:
-----------------------------------
OS: Suse 11.1
GCC Version: 4.3.2 (Suse Linux) [gcc_4_3-brach revision
141291]
Kernel: 2.6.27.7-9
Kernel Mods:
* Un-check the Tickless option
* Timer Frequency - 1000Hz
* Preempt kernel

Others 1
-----------
OS: Suse 10.2
GCC Version: 4.1.2 20061115 (prerelease)(SUSE Linux)
Kernel: 2.6.18.2-34-default
Kernel Mods:
* Preemptible Kernel
(Low-Latency Desktop) (NEW)
* Preempt The Big Kernel Lock
(NEW)
* Timer frequency (NEW) - 1000
Hz (NEW)

Others 2
-----------
OS: Suse 9.3
GCC Version: 3.3.5 20050117 (prerelease)(SUSE Linux)
Kernel 2.6.11.4-20a-default
Kernel Mods: None

I executed the following c++ code on the above stated builds

CODE - file name test.cpp
#include <signal.h>
#include <sys/time.h>
#include <iostream>
#include <cstdlib>

using namespace std;

long long int counter = 0;
struct timeval last_time;
struct timeval curr_time;
double dif = 0.0;
double freq_sum = 0.0;
double reps = 0.0;
double freq_min = 99999.0;
double freq_max = 0.0;
long long int num_too_low = 0;

void time_check(int data)
{
// work out the frequecy of the SIGALRMs
++counter;
if (counter >= 1000)
{

// need to work out time since last 1000 ticks
gettimeofday(&curr_time, NULL);
dif = ((curr_time.tv_usec + curr_time.tv_sec * 1000000)
- (last_time.tv_usec + last_time.tv_sec * 1000000));
double freq = (counter / dif) * 1000000;

freq_sum = ((freq_sum * reps) + freq) / (reps + 1) ;

++reps;
cout << "Frequency = " << freq << " reps= " << dif / 1000000 <<
endl;
if (freq_min > freq) freq_min = freq;
if (freq_max < freq) freq_max = freq;
if (freq < 950)
++num_too_low;
last_time = curr_time;
counter = 0;
}
}

int main (int argc, char * argv[])
{
cout << "go" /* << "\a \a \a" */ << endl;

int res;
gettimeofday(&last_time, NULL);
struct sigaction action;

struct itimerval timer_value;

timer_value.it_value.tv_sec = 0;
timer_value.it_value.tv_usec = 1;
timer_value.it_interval.tv_sec = 0;
timer_value.it_interval.tv_usec = 1;

action.sa_handler = time_check;
action.sa_flags = SA_NOMASK;
sigemptyset(&action.sa_mask);

sigaction( SIGALRM, &action, NULL);
res = setitimer( ITIMER_REAL, &timer_value, NULL );
if (res == -1)
cout << "error in setitimer" << endl;

cout << "Starting CPU Test program" << endl;
// loop for a long time

while (reps < 3000.0)
{
sleep(1);
}
cout << "average CPU frequency = " << freq_sum << endl;
cout << "reps = " << reps << endl;
cout << "Min = " << freq_min << " Max = " << freq_max << endl;
cout << "number of low = " << num_too_low << endl;
return 0;
}

Compiled the above code with "g++ -o test test.cpp"
Run the above code with "./test"

Observations:
SUSE Version AVG. Frequency AVG. REPS
Suse 9.3 999.xxx to 990.xxx reps > 1
(on average)
Suse 10.2 999.xxx to 998.xxx reps (1
- 1.001)
Suse 10.3 1000.xxx to 912.xxx reps (1 - 1.090)
Suse 11.1 0 to 324263.xxx reps
(-2e-0.6 upto 0.005112)

Suse 11.1 - Options:

- Turn off ACPI in options when booting with clock=tsc | clock=pit

Observations for suse 11.1 with options acpi=off and clock=tsc |
clock=pit

SUSE Version AVG. Frequency AVG. REPS
Suse 11.1 710.xxx to 999.xxx reps
(1.37xx to 1.0002)

Hardware used for Suse 11.1 - HP Pavilion Slimline s3821uk Desktop PC
(NQ808AA) specifications - HP Home & Home Office products
http://h10010.www1.hp.com/wwpc/uk/en/ho/WF10a/12454-12454-3329740-64546-
64546-3884669.html?jumpid=in_r2515_uk/en/hho/ipg/psc404redirect-ot-xx-xx
-/chev/

While testing no other application/s were running.

Question:

* Is my c++ code correct?
* Am I using the correct way to get the clock ticks or is there more
reliable tchnique avaliable to do this?
* Is that a problem with new Kernel if so is it a known issue ?
* Do I need to modify the Kernel to obtain regular and stable clock tick
at 1000 Hz ?
* Do I have to upgrade the Kernel ?
* Would be great, if pointed to the right direction for solution (e.g.
another forum) if no solution at hand.

Thanks

********************************************************************
This email and any attachments are confidential to the intended
recipient and may also be privileged. If you are not the intended
recipient please delete it from your system and notify the sender.
You should not copy it or use it for any purpose nor disclose or
distribute its contents to any other person.
********************************************************************

2009-11-19 16:32:13

by bluedefense bluedefense

[permalink] [raw]

Subject: Crash 2.6.19

2009-11-19 17:22:58

by Bryan Donlan

[permalink] [raw]

Subject: Re: Crash 2.6.19

On Thu, Nov 19, 2009 at 7:16 AM, bluedefense bluedefense
<[email protected]> wrote:
> Hi, I really dont know if this is the right mailing list. But I have a
> really serious problem with the linux kernel on a production server.
> The kernel version is 2.6.19 and the following is my config:

That's a three year old kernel version - I don't know if anyone's
going to be very inclined to try to debug it. I'd recommend trying to
upgrade to a more recent version.

2009-11-19 18:48:15

by Ahmed, Subhan (UK)

[permalink] [raw]

Subject: Kernel 2.6.27.7-9 for Suse 11.1 help required with CPU Clock freq/speed/ticks

2009-11-20 10:57:47

by Ahmed, Subhan (UK)

[permalink] [raw]

Subject: Kernel 2.6.27.7-9 for Suse 11.1 help required with CPU Clock freq/speed/ticks

Hi All,

I know this is not email list for programming questions but it relates
to Kernel as well, in fact relying on kernel. Could someone please
through a light or guide me to the right direction.

Problem Statement: High CPU clock speed/freq
Requirement: Obtain a stable CPU clock ticks/speed/freq on
Suse 11.1 with kernel 2.6.27.7-9
Questions: Please refer to the bottom of this page
Artifacts in Use:
-----------------------------------
OS: Suse 11.1
GCC Version: 4.3.2 (Suse Linux) [gcc_4_3-brach revision
141291]
Kernel: 2.6.27.7-9
Kernel Mods:
* Un-check the Tickless option
* Timer Frequency - 1000Hz
* Preempt kernel

Others 1
-----------
OS: Suse 10.2
GCC Version: 4.1.2 20061115 (prerelease)(SUSE Linux)
Kernel: 2.6.18.2-34-default
Kernel Mods:
* Preemptible Kernel
(Low-Latency Desktop) (NEW)
* Preempt The Big Kernel Lock
(NEW)
* Timer frequency (NEW) - 1000
Hz (NEW)

Others 2
-----------
OS: Suse 9.3
GCC Version: 3.3.5 20050117 (prerelease)(SUSE Linux)
Kernel 2.6.11.4-20a-default
Kernel Mods: None

I executed the following c++ code on the above stated builds

CODE - file name test.cpp
#include <signal.h>
#include <sys/time.h>
#include <iostream>
#include <cstdlib>

using namespace std;

long long int counter = 0;
struct timeval last_time;
struct timeval curr_time;
double dif = 0.0;
double freq_sum = 0.0;
double reps = 0.0;
double freq_min = 99999.0;
double freq_max = 0.0;
long long int num_too_low = 0;

void time_check(int data)
{
// work out the frequecy of the SIGALRMs
++counter;
if (counter >= 1000)
{

// need to work out time since last 1000 ticks
gettimeofday(&curr_time, NULL);
dif = ((curr_time.tv_usec + curr_time.tv_sec * 1000000)
- (last_time.tv_usec + last_time.tv_sec * 1000000));
double freq = (counter / dif) * 1000000;

freq_sum = ((freq_sum * reps) + freq) / (reps + 1) ;

++reps;
cout << "Frequency = " << freq << " reps= " << dif / 1000000 <<
endl;
if (freq_min > freq) freq_min = freq;
if (freq_max < freq) freq_max = freq;
if (freq < 950)
++num_too_low;
last_time = curr_time;
counter = 0;
}
}

int main (int argc, char * argv[])
{
cout << "go" /* << "\a \a \a" */ << endl;

int res;
gettimeofday(&last_time, NULL);
struct sigaction action;

struct itimerval timer_value;

timer_value.it_value.tv_sec = 0;
timer_value.it_value.tv_usec = 1;
timer_value.it_interval.tv_sec = 0;
timer_value.it_interval.tv_usec = 1;

action.sa_handler = time_check;
action.sa_flags = SA_NOMASK;
sigemptyset(&action.sa_mask);

sigaction( SIGALRM, &action, NULL);
res = setitimer( ITIMER_REAL, &timer_value, NULL );
if (res == -1)
cout << "error in setitimer" << endl;

cout << "Starting CPU Test program" << endl;
// loop for a long time

while (reps < 3000.0)
{
sleep(1);
}
cout << "average CPU frequency = " << freq_sum << endl;
cout << "reps = " << reps << endl;
cout << "Min = " << freq_min << " Max = " << freq_max << endl;
cout << "number of low = " << num_too_low << endl;
return 0;
}

Compiled the above code with "g++ -o test test.cpp"
Run the above code with "./test"

Observations:
SUSE Version AVG. Frequency AVG. REPS
Suse 9.3 999.xxx to 990.xxx reps > 1
(on average)
Suse 10.2 999.xxx to 998.xxx reps (1
- 1.001)
Suse 10.3 1000.xxx to 912.xxx reps (1 - 1.090)
Suse 11.1 0 to 324263.xxx reps
(-2e-0.6 upto 0.005112)

Suse 11.1 - Options:

- Turn off ACPI in options when booting with clock=tsc | clock=pit

Observations for suse 11.1 with options acpi=off and clock=tsc |
clock=pit

SUSE Version AVG. Frequency AVG. REPS
Suse 11.1 710.xxx to 999.xxx reps
(1.37xx to 1.0002)

Hardware used for Suse 11.1 - HP Pavilion Slimline s3821uk Desktop PC
(NQ808AA) specifications - HP Home & Home Office products
http://h10010.www1.hp.com/wwpc/uk/en/ho/WF10a/12454-12454-3329740-64546-
64546-3884669.html?jumpid=in_r2515_uk/en/hho/ipg/psc404redirect-ot-xx-xx
-/chev/

While testing no other application/s were running.

Question:

* Is my c++ code correct?
* Am I using the correct way to get the clock ticks or is there more
reliable tchnique avaliable to do this?
* Is that a problem with new Kernel if so is it a known issue ?
* Do I need to modify the Kernel to obtain regular and stable clock tick
at 1000 Hz ?
* Do I have to upgrade the Kernel ?
* Would be great, if pointed to the right direction for solution (e.g.
another forum) if no solution at hand.

Thanks

Subhan

********************************************************************
This email and any attachments are confidential to the intended
recipient and may also be privileged. If you are not the intended
recipient please delete it from your system and notify the sender.
You should not copy it or use it for any purpose nor disclose or
distribute its contents to any other person.
********************************************************************

2009-11-23 14:47:21

by Ahmed, Subhan (UK)

[permalink] [raw]

Subject: RE: Kernel 2.6.27.7-9 for Suse 11.1 help required with CPU Clock freq/speed/ticks

Hi All,

I have requested response on below, I can hold on and wait if someone
can help on this but do let me know if this is not the right place to
ask such questions. Thanks for help.

Subhan

-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of Ahmed, Subhan
(UK)
Sent: 20 November 2009 10:58
To: [email protected]
Subject: Kernel 2.6.27.7-9 for Suse 11.1 help required with CPU Clock
freq/speed/ticks

*** WARNING ***

This message has originated outside your organisation,
either from an external partner or the Global Internet.
Keep this in mind if you answer this message.

Hi All,

I know this is not email list for programming questions but it relates
to Kernel as well, in fact relying on kernel. Could someone please
through a light or guide me to the right direction.

Problem Statement: High CPU clock speed/freq
Requirement: Obtain a stable CPU clock ticks/speed/freq on
Suse 11.1 with kernel 2.6.27.7-9
Questions: Please refer to the bottom of this page
Artifacts in Use:
-----------------------------------
OS: Suse 11.1
GCC Version: 4.3.2 (Suse Linux) [gcc_4_3-brach revision
141291]
Kernel: 2.6.27.7-9
Kernel Mods:
* Un-check the Tickless option
* Timer Frequency - 1000Hz
* Preempt kernel

Others 1
-----------
OS: Suse 10.2
GCC Version: 4.1.2 20061115 (prerelease)(SUSE Linux)
Kernel: 2.6.18.2-34-default
Kernel Mods:
* Preemptible Kernel
(Low-Latency Desktop) (NEW)
* Preempt The Big Kernel Lock
(NEW)
* Timer frequency (NEW) - 1000
Hz (NEW)

Others 2
-----------
OS: Suse 9.3
GCC Version: 3.3.5 20050117 (prerelease)(SUSE Linux)
Kernel 2.6.11.4-20a-default
Kernel Mods: None

I executed the following c++ code on the above stated builds

CODE - file name test.cpp
#include <signal.h>
#include <sys/time.h>
#include <iostream>
#include <cstdlib>

using namespace std;

long long int counter = 0;
struct timeval last_time;
struct timeval curr_time;
double dif = 0.0;
double freq_sum = 0.0;
double reps = 0.0;
double freq_min = 99999.0;
double freq_max = 0.0;
long long int num_too_low = 0;

void time_check(int data)
{
// work out the frequecy of the SIGALRMs
++counter;
if (counter >= 1000)
{

// need to work out time since last 1000 ticks
gettimeofday(&curr_time, NULL);
dif = ((curr_time.tv_usec + curr_time.tv_sec * 1000000)
- (last_time.tv_usec + last_time.tv_sec * 1000000));
double freq = (counter / dif) * 1000000;

freq_sum = ((freq_sum * reps) + freq) / (reps + 1) ;

++reps;
cout << "Frequency = " << freq << " reps= " << dif / 1000000 <<
endl;
if (freq_min > freq) freq_min = freq;
if (freq_max < freq) freq_max = freq;
if (freq < 950)
++num_too_low;
last_time = curr_time;
counter = 0;
}
}

int main (int argc, char * argv[])
{
cout << "go" /* << "\a \a \a" */ << endl;

int res;
gettimeofday(&last_time, NULL);
struct sigaction action;

struct itimerval timer_value;

timer_value.it_value.tv_sec = 0;
timer_value.it_value.tv_usec = 1;
timer_value.it_interval.tv_sec = 0;
timer_value.it_interval.tv_usec = 1;

action.sa_handler = time_check;
action.sa_flags = SA_NOMASK;
sigemptyset(&action.sa_mask);

sigaction( SIGALRM, &action, NULL);
res = setitimer( ITIMER_REAL, &timer_value, NULL );
if (res == -1)
cout << "error in setitimer" << endl;

cout << "Starting CPU Test program" << endl;
// loop for a long time

while (reps < 3000.0)
{
sleep(1);
}
cout << "average CPU frequency = " << freq_sum << endl;
cout << "reps = " << reps << endl;
cout << "Min = " << freq_min << " Max = " << freq_max << endl;
cout << "number of low = " << num_too_low << endl;
return 0;
}

Compiled the above code with "g++ -o test test.cpp"
Run the above code with "./test"

Observations:
SUSE Version AVG. Frequency AVG. REPS
Suse 9.3 999.xxx to 990.xxx reps > 1
(on average)
Suse 10.2 999.xxx to 998.xxx reps (1
- 1.001)
Suse 10.3 1000.xxx to 912.xxx reps (1 - 1.090)
Suse 11.1 0 to 324263.xxx reps
(-2e-0.6 upto 0.005112)

Suse 11.1 - Options:

- Turn off ACPI in options when booting with clock=tsc | clock=pit

Observations for suse 11.1 with options acpi=off and clock=tsc |
clock=pit

SUSE Version AVG. Frequency AVG. REPS
Suse 11.1 710.xxx to 999.xxx reps
(1.37xx to 1.0002)

Hardware used for Suse 11.1 - HP Pavilion Slimline s3821uk Desktop PC
(NQ808AA) specifications - HP Home & Home Office products
http://h10010.www1.hp.com/wwpc/uk/en/ho/WF10a/12454-12454-3329740-64546-
64546-3884669.html?jumpid=in_r2515_uk/en/hho/ipg/psc404redirect-ot-xx-xx
-/chev/

While testing no other application/s were running.

Question:

* Is my c++ code correct?
* Am I using the correct way to get the clock ticks or is there more
reliable tchnique avaliable to do this?
* Is that a problem with new Kernel if so is it a known issue ?
* Do I need to modify the Kernel to obtain regular and stable clock tick
at 1000 Hz ?
* Do I have to upgrade the Kernel ?
* Would be great, if pointed to the right direction for solution (e.g.
another forum) if no solution at hand.

Thanks

Subhan

********************************************************************
This email and any attachments are confidential to the intended
recipient and may also be privileged. If you are not the intended
recipient please delete it from your system and notify the sender.
You should not copy it or use it for any purpose nor disclose or
distribute its contents to any other person.
********************************************************************

2009-11-24 11:41:05

by Ahmed, Subhan (UK)

[permalink] [raw]

Subject: RE: Kernel 2.6.27.7-9 for Suse 11.1 help required with CPU Clock freq/speed/ticks

Is anyone getting this message at all.

-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of Ahmed, Subhan
(UK)
Sent: 23 November 2009 14:47
To: [email protected]
Subject: RE: Kernel 2.6.27.7-9 for Suse 11.1 help required with CPU
Clock freq/speed/ticks

*** WARNING ***

This message has originated outside your organisation,
either from an external partner or the Global Internet.
Keep this in mind if you answer this message.

Hi All,

I have requested response on below, I can hold on and wait if someone
can help on this but do let me know if this is not the right place to
ask such questions. Thanks for help.

Subhan

-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of Ahmed, Subhan
(UK)
Sent: 20 November 2009 10:58
To: [email protected]
Subject: Kernel 2.6.27.7-9 for Suse 11.1 help required with CPU Clock
freq/speed/ticks

*** WARNING ***

This message has originated outside your organisation,
either from an external partner or the Global Internet.
Keep this in mind if you answer this message.

Hi All,

I know this is not email list for programming questions but it relates
to Kernel as well, in fact relying on kernel. Could someone please
through a light or guide me to the right direction.

Problem Statement: High CPU clock speed/freq
Requirement: Obtain a stable CPU clock ticks/speed/freq on
Suse 11.1 with kernel 2.6.27.7-9
Questions: Please refer to the bottom of this page
Artifacts in Use:
-----------------------------------
OS: Suse 11.1
GCC Version: 4.3.2 (Suse Linux) [gcc_4_3-brach revision
141291]
Kernel: 2.6.27.7-9
Kernel Mods:
* Un-check the Tickless option
* Timer Frequency - 1000Hz
* Preempt kernel

Others 1
-----------
OS: Suse 10.2
GCC Version: 4.1.2 20061115 (prerelease)(SUSE Linux)
Kernel: 2.6.18.2-34-default
Kernel Mods:
* Preemptible Kernel
(Low-Latency Desktop) (NEW)
* Preempt The Big Kernel Lock
(NEW)
* Timer frequency (NEW) - 1000
Hz (NEW)

Others 2
-----------
OS: Suse 9.3
GCC Version: 3.3.5 20050117 (prerelease)(SUSE Linux)
Kernel 2.6.11.4-20a-default
Kernel Mods: None

I executed the following c++ code on the above stated builds

CODE - file name test.cpp
#include <signal.h>
#include <sys/time.h>
#include <iostream>
#include <cstdlib>

using namespace std;

long long int counter = 0;
struct timeval last_time;
struct timeval curr_time;
double dif = 0.0;
double freq_sum = 0.0;
double reps = 0.0;
double freq_min = 99999.0;
double freq_max = 0.0;
long long int num_too_low = 0;

void time_check(int data)
{
// work out the frequecy of the SIGALRMs
++counter;
if (counter >= 1000)
{

// need to work out time since last 1000 ticks
gettimeofday(&curr_time, NULL);
dif = ((curr_time.tv_usec + curr_time.tv_sec * 1000000)
- (last_time.tv_usec + last_time.tv_sec * 1000000));
double freq = (counter / dif) * 1000000;

freq_sum = ((freq_sum * reps) + freq) / (reps + 1) ;

++reps;
cout << "Frequency = " << freq << " reps= " << dif / 1000000 <<
endl;
if (freq_min > freq) freq_min = freq;
if (freq_max < freq) freq_max = freq;
if (freq < 950)
++num_too_low;
last_time = curr_time;
counter = 0;
}
}

int main (int argc, char * argv[])
{
cout << "go" /* << "\a \a \a" */ << endl;

int res;
gettimeofday(&last_time, NULL);
struct sigaction action;

struct itimerval timer_value;

timer_value.it_value.tv_sec = 0;
timer_value.it_value.tv_usec = 1;
timer_value.it_interval.tv_sec = 0;
timer_value.it_interval.tv_usec = 1;

action.sa_handler = time_check;
action.sa_flags = SA_NOMASK;
sigemptyset(&action.sa_mask);

sigaction( SIGALRM, &action, NULL);
res = setitimer( ITIMER_REAL, &timer_value, NULL );
if (res == -1)
cout << "error in setitimer" << endl;

cout << "Starting CPU Test program" << endl;
// loop for a long time

while (reps < 3000.0)
{
sleep(1);
}
cout << "average CPU frequency = " << freq_sum << endl;
cout << "reps = " << reps << endl;
cout << "Min = " << freq_min << " Max = " << freq_max << endl;
cout << "number of low = " << num_too_low << endl;
return 0;
}

Compiled the above code with "g++ -o test test.cpp"
Run the above code with "./test"

Observations:
SUSE Version AVG. Frequency AVG. REPS
Suse 9.3 999.xxx to 990.xxx reps > 1
(on average)
Suse 10.2 999.xxx to 998.xxx reps (1
- 1.001)
Suse 10.3 1000.xxx to 912.xxx reps (1 - 1.090)
Suse 11.1 0 to 324263.xxx reps
(-2e-0.6 upto 0.005112)

Suse 11.1 - Options:

- Turn off ACPI in options when booting with clock=tsc | clock=pit

Observations for suse 11.1 with options acpi=off and clock=tsc |
clock=pit

SUSE Version AVG. Frequency AVG. REPS
Suse 11.1 710.xxx to 999.xxx reps
(1.37xx to 1.0002)

Hardware used for Suse 11.1 - HP Pavilion Slimline s3821uk Desktop PC
(NQ808AA) specifications - HP Home & Home Office products
http://h10010.www1.hp.com/wwpc/uk/en/ho/WF10a/12454-12454-3329740-64546-
64546-3884669.html?jumpid=in_r2515_uk/en/hho/ipg/psc404redirect-ot-xx-xx
-/chev/

While testing no other application/s were running.

Question:

* Is my c++ code correct?
* Am I using the correct way to get the clock ticks or is there more
reliable tchnique avaliable to do this?
* Is that a problem with new Kernel if so is it a known issue ?
* Do I need to modify the Kernel to obtain regular and stable clock tick
at 1000 Hz ?
* Do I have to upgrade the Kernel ?
* Would be great, if pointed to the right direction for solution (e.g.
another forum) if no solution at hand.

Thanks

Subhan

********************************************************************
This email and any attachments are confidential to the intended
recipient and may also be privileged. If you are not the intended
recipient please delete it from your system and notify the sender.
You should not copy it or use it for any purpose nor disclose or
distribute its contents to any other person.
********************************************************************

2009-11-24 14:47:29

by Corrado Zoccolo

[permalink] [raw]

Subject: Re: Kernel 2.6.27.7-9 for Suse 11.1 help required with CPU Clock freq/speed/ticks

On Thu, Nov 19, 2009 at 1:32 PM, Ahmed, Subhan (UK)
<[email protected]> wrote:
> Hi All,
>
> I know this is not email list for programming questions but it relates
> to Kernel as well, in fact relying on kernel. Could someone please
> through a light or guide me to the right direction.
>
>
> Problem Statement: High CPU clock speed/freq
> Requirement: Obtain a stable CPU clock ticks/speed/freq on
> Suse 11.1 with kernel 2.6.27.7-9
> Questions: Please refer to the bottom of this page
> Artifacts in Use:
> -----------------------------------
> OS: Suse 11.1
> GCC Version: 4.3.2 (Suse Linux) [gcc_4_3-brach revision
> 141291]
> Kernel: 2.6.27.7-9
> Kernel Mods:
> * Un-check the Tickless option
> * Timer Frequency - 1000Hz
> * Preempt kernel
>
> Others 1
> -----------
> OS: Suse 10.2
> GCC Version: 4.1.2 20061115 (prerelease)(SUSE Linux)
> Kernel: 2.6.18.2-34-default
> Kernel Mods:
> * Preemptible Kernel
> (Low-Latency Desktop) (NEW)
> * Preempt The Big Kernel Lock
> (NEW)
> * Timer frequency (NEW) - 1000
> Hz (NEW)
>
> Others 2
> -----------
> OS: Suse 9.3
> GCC Version: 3.3.5 20050117 (prerelease)(SUSE Linux)
> Kernel 2.6.11.4-20a-default
> Kernel Mods: None
>
> I executed the following c++ code on the above stated builds
>
> CODE - file name test.cpp
> #include <signal.h>
> #include <sys/time.h>
> #include <iostream>
> #include <cstdlib>
>
>
> using namespace std;
>
> long long int counter = 0;
> struct timeval last_time;
> struct timeval curr_time;
> double dif = 0.0;
> double freq_sum = 0.0;
> double reps = 0.0;
> double freq_min = 99999.0;
> double freq_max = 0.0;
> long long int num_too_low = 0;
>
> void time_check(int data)
> {
> // work out the frequecy of the SIGALRMs
> ++counter;
> if (counter >= 1000)
> {
>
> // need to work out time since last 1000 ticks
> gettimeofday(&curr_time, NULL);
> dif = ((curr_time.tv_usec + curr_time.tv_sec * 1000000)
> - (last_time.tv_usec + last_time.tv_sec * 1000000));
> double freq = (counter / dif) * 1000000;
>
> freq_sum = ((freq_sum * reps) + freq) / (reps + 1) ;
>
> ++reps;
> cout << "Frequency = " << freq << " reps= " << dif / 1000000 <<
> endl;
> if (freq_min > freq) freq_min = freq;
> if (freq_max < freq) freq_max = freq;
> if (freq < 950)
> ++num_too_low;
> last_time = curr_time;
> counter = 0;
> }
> }
>
> int main (int argc, char * argv[])
> {
> cout << "go" /* << "\a \a \a" */ << endl;
>
> int res;
> gettimeofday(&last_time, NULL);
> struct sigaction action;
>
> struct itimerval timer_value;
>
> timer_value.it_value.tv_sec = 0;
> timer_value.it_value.tv_usec = 1;
> timer_value.it_interval.tv_sec = 0;
> timer_value.it_interval.tv_usec = 1;
>
> action.sa_handler = time_check;
> action.sa_flags = SA_NOMASK;
> sigemptyset(&action.sa_mask);
>
> sigaction( SIGALRM, &action, NULL);
> res = setitimer( ITIMER_REAL, &timer_value, NULL );
> if (res == -1)
> cout << "error in setitimer" << endl;
>
> cout << "Starting CPU Test program" << endl;
> // loop for a long time
>
> while (reps < 3000.0)
> {
> sleep(1);
> }
> cout << "average CPU frequency = " << freq_sum << endl;
> cout << "reps = " << reps << endl;
> cout << "Min = " << freq_min << " Max = " << freq_max << endl;
> cout << "number of low = " << num_too_low << endl;
> return 0;
> }
>
> Compiled the above code with "g++ -o test test.cpp"
> Run the above code with "./test"
>
> Observations:
> SUSE Version AVG. Frequency AVG. REPS
> Suse 9.3 999.xxx to 990.xxx reps > 1
> (on average)
> Suse 10.2 999.xxx to 998.xxx reps (1
> - 1.001)
> Suse 10.3 1000.xxx to 912.xxx reps (1 - 1.090)
> Suse 11.1 0 to 324263.xxx reps
> (-2e-0.6 upto 0.005112)
>
> Suse 11.1 - Options:
>
> - Turn off ACPI in options when booting with clock=tsc | clock=pit
>
> Observations for suse 11.1 with options acpi=off and clock=tsc |
> clock=pit
>
> SUSE Version AVG. Frequency AVG. REPS
> Suse 11.1 710.xxx to 999.xxx reps
> (1.37xx to 1.0002)
>
> Hardware used for Suse 11.1 - HP Pavilion Slimline s3821uk Desktop PC
> (NQ808AA) specifications - HP Home & Home Office products
> http://h10010.www1.hp.com/wwpc/uk/en/ho/WF10a/12454-12454-3329740-64546-
> 64546-3884669.html?jumpid=in_r2515_uk/en/hho/ipg/psc404redirect-ot-xx-xx
> -/chev/
>
> While testing no other application/s were running.
>
> Question:
>
> * Is my c++ code correct?
No. It segfaults on my machine.
BTW, it doesn't measure the clock ticks.
It measures the maximum frequency at which the kernel can fire the
sigalarm, if the machine is fast enough running the time_check.
If the machine is not fast enough, it will print random values (due to
time_check being not reentrant) or segfault.

> * Am I using the correct way to get the clock ticks or is there more
> reliable tchnique avaliable to do this?
Clock ticks do not matter to userspace with newer kernels, since the
high resolution timers can give you a flow of interrupts at 1us
delays.
> * Is that a problem with new Kernel if so is it a known issue ?
No, it is an improvement.
> * Do I need to modify the Kernel to obtain regular and stable clock tick
> at 1000 Hz ?
You can probably disable the high resolution timers, but maybe
changing the way you look at the problem you are solving would be
better. Why are you trying to measure clock ticks? What is the real
problem you want to solve?

> * Do I have to upgrade the Kernel ?
> * Would be great, if pointed to the right direction for solution (e.g.
> another forum) if no solution at hand.
>
> Thanks

Thanks,
Corrado

--
__________________________________________________________________________

dott. Corrado Zoccolo mailto:[email protected]
PhD - Department of Computer Science - University of Pisa, Italy
--------------------------------------------------------------------------
The self-confidence of a warrior is not the self-confidence of the average
man. The average man seeks certainty in the eyes of the onlooker and calls
that self-confidence. The warrior seeks impeccability in his own eyes and
calls that humbleness.
Tales of Power - C. Castaneda