I'm getting the following oops when doing the following commands:
modprobe ib_srp
<add targets(s) to ib_srp using sysfs>
rmmod ib_srp
modprobe ib_srp
<OOPS>
I'm going to try and track down how the list is getting corrupted; it
looks like attribute_container_list in
drivers/base/attribute_container.c is the one getting corrupted.
Before I get too far into this, has anyone seen this one before? I
looked at 'git diff v2.6.24-rc4..' and didn't see any changes that would
stand out as fixing it.
list_add corruption. prev->next should be next (ffffffff81423ad0), but was 0000000000000000. (prev=ffff8108464cddd8).
------------[ cut here ]------------
kernel BUG at lib/list_debug.c:33!
invalid opcode: 0000 [1] SMP
CPU 3
Modules linked in: ib_srp sg sd_mod ib_iser libiscsi scsi_transport_iscsi rdma_ucm ib_ucm rdma_cm iw_cm ib_addr scsi_transport_srp scsi_mod ib_cm ib_ipoib ib_sa ib_uverbs ib_umad ib_mthca ib_mad ib_core ehci_hcd ohci_hcd nfs lockd nfs_acl sunrpc unionfs forcedeth
Pid: 3640, comm: modprobe Not tainted 2.6.24-rc5 #2
RIP: 0010:[<ffffffff810f53aa>] [<ffffffff810f53aa>] __list_add+0x42/0x56
RSP: 0018:ffff810844077f18 EFLAGS: 00010292
RAX: 0000000000000079 RBX: ffff810846619000 RCX: ffffffff812b7308
RDX: ffffffff812b7308 RSI: 0000000000000046 RDI: ffffffff812b7300
RBP: ffffffff881432c0 R08: ffffffff812b72f0 R09: 0000000000000000
R10: 0000000100000000 R11: 0000000000000000 R12: 00002b54c0f72010
R13: 0000000000000000 R14: 00000000006180c8 R15: 00002b54c0f72010
FS: 00002b54c14bb6e0(0000) GS:ffff810846531840(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
CR2: 00002b54c0fcd00f CR3: 0000000843ddc000 CR4: 00000000000006e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Process modprobe (pid: 3640, threadinfo ffff810844076000, task ffff8108402444c0)
Stack: 0000000000000000 ffffffff8115170f ffff810846619000 ffffffff88138448
0000000000000000 ffffffff88142080 000000000005b1cb ffffffff8809e00d
ffffffff88142080 ffffffff81056af1 0000000000000000 0000000000000000
Call Trace:
[<ffffffff8115170f>] attribute_container_register+0x44/0x54
[<ffffffff88138448>] :scsi_transport_srp:srp_attach_transport+0x74/0x115
[<ffffffff8809e00d>] :ib_srp:srp_init_module+0xd/0xc1
[<ffffffff81056af1>] sys_init_module+0xad/0x14b
[<ffffffff8100be6e>] system_call+0x7e/0x83
Code: 0f 0b eb fe 48 89 7e 08 48 89 37 48 89 47 08 48 89 38 59 c3
RIP [<ffffffff810f53aa>] __list_add+0x42/0x56
RSP <ffff810844077f18>
#
# Automatically generated make config: don't edit
# Linux kernel version: 2.6.24-rc5
# Fri Dec 21 14:46:03 2007
#
CONFIG_64BIT=y
# CONFIG_X86_32 is not set
CONFIG_X86_64=y
CONFIG_X86=y
CONFIG_GENERIC_TIME=y
CONFIG_GENERIC_CMOS_UPDATE=y
CONFIG_CLOCKSOURCE_WATCHDOG=y
CONFIG_GENERIC_CLOCKEVENTS=y
CONFIG_GENERIC_CLOCKEVENTS_BROADCAST=y
CONFIG_LOCKDEP_SUPPORT=y
CONFIG_STACKTRACE_SUPPORT=y
CONFIG_SEMAPHORE_SLEEPERS=y
CONFIG_MMU=y
CONFIG_ZONE_DMA=y
# CONFIG_QUICKLIST is not set
CONFIG_GENERIC_ISA_DMA=y
CONFIG_GENERIC_IOMAP=y
CONFIG_GENERIC_BUG=y
CONFIG_GENERIC_HWEIGHT=y
CONFIG_ARCH_MAY_HAVE_PC_FDC=y
CONFIG_DMI=y
CONFIG_RWSEM_GENERIC_SPINLOCK=y
# CONFIG_RWSEM_XCHGADD_ALGORITHM is not set
# CONFIG_ARCH_HAS_ILOG2_U32 is not set
# CONFIG_ARCH_HAS_ILOG2_U64 is not set
CONFIG_GENERIC_CALIBRATE_DELAY=y
CONFIG_GENERIC_TIME_VSYSCALL=y
CONFIG_ARCH_SUPPORTS_OPROFILE=y
CONFIG_ZONE_DMA32=y
CONFIG_ARCH_POPULATES_NODE_MAP=y
CONFIG_AUDIT_ARCH=y
CONFIG_GENERIC_HARDIRQS=y
CONFIG_GENERIC_IRQ_PROBE=y
CONFIG_GENERIC_PENDING_IRQ=y
# CONFIG_KTIME_SCALAR is not set
CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
#
# General setup
#
CONFIG_EXPERIMENTAL=y
CONFIG_LOCK_KERNEL=y
CONFIG_INIT_ENV_ARG_LIMIT=32
CONFIG_LOCALVERSION=""
# CONFIG_LOCALVERSION_AUTO is not set
CONFIG_SWAP=y
CONFIG_SYSVIPC=y
CONFIG_SYSVIPC_SYSCTL=y
CONFIG_POSIX_MQUEUE=y
# CONFIG_BSD_PROCESS_ACCT is not set
CONFIG_TASKSTATS=y
CONFIG_TASK_DELAY_ACCT=y
CONFIG_TASK_XACCT=y
CONFIG_TASK_IO_ACCOUNTING=y
# CONFIG_USER_NS is not set
# CONFIG_PID_NS is not set
CONFIG_AUDIT=y
CONFIG_AUDITSYSCALL=y
CONFIG_AUDIT_TREE=y
# CONFIG_IKCONFIG is not set
CONFIG_LOG_BUF_SHIFT=17
# CONFIG_CGROUPS is not set
# CONFIG_FAIR_GROUP_SCHED is not set
CONFIG_SYSFS_DEPRECATED=y
CONFIG_RELAY=y
CONFIG_BLK_DEV_INITRD=y
CONFIG_INITRAMFS_SOURCE=""
CONFIG_CC_OPTIMIZE_FOR_SIZE=y
CONFIG_SYSCTL=y
# CONFIG_EMBEDDED is not set
CONFIG_UID16=y
CONFIG_SYSCTL_SYSCALL=y
CONFIG_KALLSYMS=y
CONFIG_KALLSYMS_ALL=y
CONFIG_KALLSYMS_EXTRA_PASS=y
CONFIG_HOTPLUG=y
CONFIG_PRINTK=y
CONFIG_BUG=y
CONFIG_ELF_CORE=y
CONFIG_BASE_FULL=y
CONFIG_FUTEX=y
CONFIG_ANON_INODES=y
CONFIG_EPOLL=y
CONFIG_SIGNALFD=y
CONFIG_EVENTFD=y
CONFIG_SHMEM=y
CONFIG_VM_EVENT_COUNTERS=y
CONFIG_SLAB=y
# CONFIG_SLUB is not set
# CONFIG_SLOB is not set
CONFIG_RT_MUTEXES=y
# CONFIG_TINY_SHMEM is not set
CONFIG_BASE_SMALL=0
CONFIG_MODULES=y
CONFIG_MODULE_UNLOAD=y
# CONFIG_MODULE_FORCE_UNLOAD is not set
# CONFIG_MODVERSIONS is not set
# CONFIG_MODULE_SRCVERSION_ALL is not set
CONFIG_KMOD=y
CONFIG_STOP_MACHINE=y
CONFIG_BLOCK=y
CONFIG_BLK_DEV_IO_TRACE=y
CONFIG_BLK_DEV_BSG=y
CONFIG_BLOCK_COMPAT=y
#
# IO Schedulers
#
CONFIG_IOSCHED_NOOP=y
CONFIG_IOSCHED_AS=y
CONFIG_IOSCHED_DEADLINE=y
CONFIG_IOSCHED_CFQ=y
# CONFIG_DEFAULT_AS is not set
# CONFIG_DEFAULT_DEADLINE is not set
CONFIG_DEFAULT_CFQ=y
# CONFIG_DEFAULT_NOOP is not set
CONFIG_DEFAULT_IOSCHED="cfq"
#
# Processor type and features
#
CONFIG_TICK_ONESHOT=y
CONFIG_NO_HZ=y
CONFIG_HIGH_RES_TIMERS=y
CONFIG_GENERIC_CLOCKEVENTS_BUILD=y
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_X86_VSMP 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 is not set
# CONFIG_MK6 is not set
# CONFIG_MK7 is not set
CONFIG_MK8=y
# 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_MVIAC7 is not set
# CONFIG_MPSC is not set
# CONFIG_MCORE2 is not set
# CONFIG_GENERIC_CPU is not set
CONFIG_X86_L1_CACHE_BYTES=64
CONFIG_X86_INTERNODE_CACHE_BYTES=64
CONFIG_X86_CMPXCHG=y
CONFIG_X86_L1_CACHE_SHIFT=6
CONFIG_X86_GOOD_APIC=y
CONFIG_X86_INTEL_USERCOPY=y
CONFIG_X86_USE_PPRO_CHECKSUM=y
CONFIG_X86_TSC=y
CONFIG_X86_MINIMUM_CPU_FAMILY=64
CONFIG_HPET_TIMER=y
CONFIG_HPET_EMULATE_RTC=y
CONFIG_GART_IOMMU=y
CONFIG_CALGARY_IOMMU=y
CONFIG_CALGARY_IOMMU_ENABLED_BY_DEFAULT=y
CONFIG_SWIOTLB=y
CONFIG_NR_CPUS=64
# CONFIG_SCHED_SMT is not set
CONFIG_SCHED_MC=y
# CONFIG_PREEMPT_NONE is not set
CONFIG_PREEMPT_VOLUNTARY=y
# CONFIG_PREEMPT is not set
CONFIG_PREEMPT_BKL=y
CONFIG_X86_LOCAL_APIC=y
CONFIG_X86_IO_APIC=y
CONFIG_X86_MCE=y
# CONFIG_X86_MCE_INTEL is not set
CONFIG_X86_MCE_AMD=y
CONFIG_MICROCODE=m
CONFIG_MICROCODE_OLD_INTERFACE=y
CONFIG_X86_MSR=y
CONFIG_X86_CPUID=y
CONFIG_NUMA=y
# CONFIG_K8_NUMA is not set
CONFIG_X86_64_ACPI_NUMA=y
# CONFIG_NUMA_EMU is not set
CONFIG_NODES_SHIFT=6
CONFIG_ARCH_DISCONTIGMEM_ENABLE=y
CONFIG_ARCH_DISCONTIGMEM_DEFAULT=y
CONFIG_ARCH_SPARSEMEM_ENABLE=y
CONFIG_SELECT_MEMORY_MODEL=y
# CONFIG_FLATMEM_MANUAL is not set
# CONFIG_DISCONTIGMEM_MANUAL is not set
CONFIG_SPARSEMEM_MANUAL=y
CONFIG_SPARSEMEM=y
CONFIG_NEED_MULTIPLE_NODES=y
CONFIG_HAVE_MEMORY_PRESENT=y
# CONFIG_SPARSEMEM_STATIC is not set
CONFIG_SPARSEMEM_EXTREME=y
CONFIG_SPARSEMEM_VMEMMAP_ENABLE=y
CONFIG_SPARSEMEM_VMEMMAP=y
# CONFIG_MEMORY_HOTPLUG is not set
CONFIG_SPLIT_PTLOCK_CPUS=4
CONFIG_MIGRATION=y
CONFIG_RESOURCES_64BIT=y
CONFIG_ZONE_DMA_FLAG=1
CONFIG_BOUNCE=y
CONFIG_VIRT_TO_BUS=y
CONFIG_MTRR=y
# CONFIG_SECCOMP is not set
# CONFIG_CC_STACKPROTECTOR is not set
# CONFIG_HZ_100 is not set
# CONFIG_HZ_250 is not set
# CONFIG_HZ_300 is not set
CONFIG_HZ_1000=y
CONFIG_HZ=1000
CONFIG_KEXEC=y
CONFIG_CRASH_DUMP=y
CONFIG_PHYSICAL_START=0x1000000
CONFIG_RELOCATABLE=y
CONFIG_PHYSICAL_ALIGN=0x200000
CONFIG_HOTPLUG_CPU=y
CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y
CONFIG_HAVE_ARCH_EARLY_PFN_TO_NID=y
#
# Power management options
#
CONFIG_PM=y
# CONFIG_PM_LEGACY is not set
# CONFIG_PM_DEBUG is not set
CONFIG_SUSPEND_SMP_POSSIBLE=y
# CONFIG_SUSPEND is not set
CONFIG_HIBERNATION_SMP_POSSIBLE=y
# CONFIG_HIBERNATION is not set
CONFIG_ACPI=y
CONFIG_ACPI_PROCFS=y
CONFIG_ACPI_PROCFS_POWER=y
CONFIG_ACPI_PROC_EVENT=y
# CONFIG_ACPI_AC is not set
# CONFIG_ACPI_BATTERY is not set
# CONFIG_ACPI_BUTTON is not set
# CONFIG_ACPI_FAN is not set
# CONFIG_ACPI_DOCK is not set
CONFIG_ACPI_PROCESSOR=y
CONFIG_ACPI_HOTPLUG_CPU=y
CONFIG_ACPI_THERMAL=y
CONFIG_ACPI_NUMA=y
# CONFIG_ACPI_ASUS 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=y
# CONFIG_ACPI_SBS is not set
#
# CPU Frequency scaling
#
# CONFIG_CPU_FREQ is not set
CONFIG_CPU_IDLE=y
CONFIG_CPU_IDLE_GOV_LADDER=y
CONFIG_CPU_IDLE_GOV_MENU=y
#
# Bus options (PCI etc.)
#
CONFIG_PCI=y
CONFIG_PCI_DIRECT=y
CONFIG_PCI_MMCONFIG=y
CONFIG_PCI_DOMAINS=y
# CONFIG_DMAR is not set
CONFIG_PCIEPORTBUS=y
CONFIG_PCIEAER=y
CONFIG_ARCH_SUPPORTS_MSI=y
CONFIG_PCI_MSI=y
CONFIG_PCI_LEGACY=y
# CONFIG_PCI_DEBUG is not set
CONFIG_HT_IRQ=y
CONFIG_ISA_DMA_API=y
CONFIG_K8_NB=y
# CONFIG_PCCARD is not set
# CONFIG_HOTPLUG_PCI is not set
#
# Executable file formats / Emulations
#
CONFIG_BINFMT_ELF=y
CONFIG_BINFMT_MISC=y
CONFIG_IA32_EMULATION=y
# CONFIG_IA32_AOUT is not set
CONFIG_COMPAT=y
CONFIG_COMPAT_FOR_U64_ALIGNMENT=y
CONFIG_SYSVIPC_COMPAT=y
#
# Networking
#
CONFIG_NET=y
#
# Networking options
#
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=y
# 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_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_LRO=m
CONFIG_INET_DIAG=m
CONFIG_INET_TCP_DIAG=m
CONFIG_TCP_CONG_ADVANCED=y
CONFIG_TCP_CONG_BIC=m
CONFIG_TCP_CONG_CUBIC=y
CONFIG_TCP_CONG_WESTWOOD=m
CONFIG_TCP_CONG_HTCP=m
CONFIG_TCP_CONG_HSTCP=m
CONFIG_TCP_CONG_HYBLA=m
CONFIG_TCP_CONG_VEGAS=m
CONFIG_TCP_CONG_SCALABLE=m
CONFIG_TCP_CONG_LP=m
CONFIG_TCP_CONG_VENO=m
CONFIG_TCP_CONG_YEAH=m
CONFIG_TCP_CONG_ILLINOIS=m
# CONFIG_DEFAULT_BIC is not set
CONFIG_DEFAULT_CUBIC=y
# CONFIG_DEFAULT_HTCP is not set
# CONFIG_DEFAULT_VEGAS is not set
# CONFIG_DEFAULT_WESTWOOD is not set
# CONFIG_DEFAULT_RENO is not set
CONFIG_DEFAULT_TCP_CONG="cubic"
CONFIG_TCP_MD5SIG=y
# CONFIG_IPV6 is not set
# CONFIG_INET6_XFRM_TUNNEL is not set
# CONFIG_INET6_TUNNEL is not set
CONFIG_NETWORK_SECMARK=y
# CONFIG_NETFILTER is not set
# CONFIG_IP_DCCP is not set
# CONFIG_IP_SCTP is not set
# 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
# CONFIG_NET_SCHED is not set
#
# Network testing
#
# CONFIG_NET_PKTGEN is not set
# CONFIG_NET_TCPPROBE is not set
# CONFIG_HAMRADIO is not set
# CONFIG_IRDA is not set
# CONFIG_BT is not set
# CONFIG_AF_RXRPC is not set
CONFIG_FIB_RULES=y
#
# Wireless
#
# CONFIG_CFG80211 is not set
CONFIG_WIRELESS_EXT=y
# CONFIG_MAC80211 is not set
# CONFIG_IEEE80211 is not set
# CONFIG_RFKILL is not set
# CONFIG_NET_9P is not set
#
# Device Drivers
#
#
# Generic Driver Options
#
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
CONFIG_STANDALONE=y
CONFIG_PREVENT_FIRMWARE_BUILD=y
CONFIG_FW_LOADER=y
# CONFIG_DEBUG_DRIVER is not set
CONFIG_DEBUG_DEVRES=y
# CONFIG_SYS_HYPERVISOR is not set
CONFIG_CONNECTOR=y
CONFIG_PROC_EVENTS=y
# CONFIG_MTD is not set
# CONFIG_PARPORT is not set
CONFIG_PNP=y
# CONFIG_PNP_DEBUG is not set
#
# Protocols
#
CONFIG_PNPACPI=y
CONFIG_BLK_DEV=y
# 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 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_CDROM_PKTCDVD is not set
# CONFIG_ATA_OVER_ETH is not set
CONFIG_MISC_DEVICES=y
# CONFIG_IBM_ASM is not set
# CONFIG_PHANTOM is not set
# CONFIG_EEPROM_93CX6 is not set
# CONFIG_SGI_IOC4 is not set
# CONFIG_TIFM_CORE is not set
# CONFIG_FUJITSU_LAPTOP is not set
# CONFIG_MSI_LAPTOP is not set
# CONFIG_SONY_LAPTOP is not set
# CONFIG_THINKPAD_ACPI is not set
# CONFIG_IDE is not set
#
# SCSI device support
#
CONFIG_RAID_ATTRS=m
CONFIG_SCSI=m
CONFIG_SCSI_DMA=y
CONFIG_SCSI_TGT=m
# CONFIG_SCSI_NETLINK is not set
CONFIG_SCSI_PROC_FS=y
#
# SCSI support type (disk, tape, CD-ROM)
#
CONFIG_BLK_DEV_SD=m
# CONFIG_CHR_DEV_ST is not set
# CONFIG_CHR_DEV_OSST is not set
# CONFIG_BLK_DEV_SR is not set
CONFIG_CHR_DEV_SG=m
# CONFIG_CHR_DEV_SCH is not set
#
# Some SCSI devices (e.g. CD jukebox) support multiple LUNs
#
CONFIG_SCSI_MULTI_LUN=y
CONFIG_SCSI_CONSTANTS=y
CONFIG_SCSI_LOGGING=y
CONFIG_SCSI_SCAN_ASYNC=y
CONFIG_SCSI_WAIT_SCAN=m
#
# SCSI Transports
#
CONFIG_SCSI_SPI_ATTRS=m
# CONFIG_SCSI_FC_ATTRS is not set
CONFIG_SCSI_ISCSI_ATTRS=m
CONFIG_SCSI_SAS_ATTRS=m
CONFIG_SCSI_SAS_LIBSAS=m
# CONFIG_SCSI_SAS_LIBSAS_DEBUG is not set
CONFIG_SCSI_SRP_ATTRS=m
# CONFIG_SCSI_SRP_TGT_ATTRS is not set
CONFIG_SCSI_LOWLEVEL=y
# 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_ADVANSYS is not set
# CONFIG_SCSI_ARCMSR is not set
# CONFIG_MEGARAID_NEWGEN is not set
# CONFIG_MEGARAID_LEGACY is not set
# 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_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_DEBUG is not set
CONFIG_SCSI_SRP=m
# CONFIG_ATA is not set
# CONFIG_MD is not set
# CONFIG_FUSION is not set
#
# IEEE 1394 (FireWire) support
#
# CONFIG_FIREWIRE is not set
# CONFIG_IEEE1394 is not set
# CONFIG_I2O is not set
# CONFIG_MACINTOSH_DRIVERS is not set
CONFIG_NETDEVICES=y
# CONFIG_NETDEVICES_MULTIQUEUE is not set
# CONFIG_DUMMY is not set
# CONFIG_BONDING is not set
# CONFIG_MACVLAN is not set
# CONFIG_EQUALIZER is not set
# CONFIG_TUN is not set
# CONFIG_VETH is not set
# CONFIG_NET_SB1000 is not set
# CONFIG_IP1000 is not set
# CONFIG_ARCNET is not set
# CONFIG_PHYLIB is not set
CONFIG_NET_ETHERNET=y
CONFIG_MII=m
# CONFIG_HAPPYMEAL is not set
# CONFIG_SUNGEM is not set
# CONFIG_CASSINI is not set
# CONFIG_NET_VENDOR_3COM is not set
# CONFIG_NET_TULIP is not set
# CONFIG_HP100 is not set
# CONFIG_IBM_NEW_EMAC_ZMII is not set
# CONFIG_IBM_NEW_EMAC_RGMII is not set
# CONFIG_IBM_NEW_EMAC_TAH is not set
# CONFIG_IBM_NEW_EMAC_EMAC4 is not set
CONFIG_NET_PCI=y
# CONFIG_PCNET32 is not set
# CONFIG_AMD8111_ETH is not set
# CONFIG_ADAPTEC_STARFIRE is not set
# CONFIG_B44 is not set
CONFIG_FORCEDETH=m
# CONFIG_FORCEDETH_NAPI is not set
# CONFIG_EEPRO100 is not set
# CONFIG_E100 is not set
# CONFIG_FEALNX is not set
# CONFIG_NATSEMI is not set
# CONFIG_NE2K_PCI is not set
# CONFIG_8139CP is not set
# CONFIG_8139TOO is not set
# CONFIG_SIS900 is not set
# CONFIG_EPIC100 is not set
# CONFIG_SUNDANCE is not set
# CONFIG_VIA_RHINE is not set
# CONFIG_SC92031 is not set
# CONFIG_NETDEV_1000 is not set
# CONFIG_NETDEV_10000 is not set
CONFIG_MLX4_CORE=m
# CONFIG_TR is not set
#
# Wireless LAN
#
# CONFIG_WLAN_PRE80211 is not set
# CONFIG_WLAN_80211 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 is not set
# 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
# CONFIG_ISDN is not set
# CONFIG_PHONE is not set
#
# Input device support
#
CONFIG_INPUT=y
CONFIG_INPUT_FF_MEMLESS=y
CONFIG_INPUT_POLLDEV=m
#
# Userland interfaces
#
CONFIG_INPUT_MOUSEDEV=y
# CONFIG_INPUT_MOUSEDEV_PSAUX is not set
CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024
CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768
# CONFIG_INPUT_JOYDEV is not set
CONFIG_INPUT_EVDEV=y
# 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 is not set
# CONFIG_MOUSE_SERIAL is not set
# CONFIG_MOUSE_APPLETOUCH is not set
# CONFIG_MOUSE_VSXXXAA is not set
# CONFIG_INPUT_JOYSTICK is not set
# CONFIG_INPUT_TABLET 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=y
# CONFIG_SERIO_CT82C710 is not set
# CONFIG_SERIO_PCIPS2 is not set
CONFIG_SERIO_LIBPS2=y
CONFIG_SERIO_RAW=m
# CONFIG_GAMEPORT is not set
#
# Character devices
#
CONFIG_VT=y
CONFIG_VT_CONSOLE=y
CONFIG_HW_CONSOLE=y
CONFIG_VT_HW_CONSOLE_BINDING=y
CONFIG_SERIAL_NONSTANDARD=y
# CONFIG_COMPUTONE is not set
# CONFIG_ROCKETPORT is not set
# CONFIG_CYCLADES is not set
# CONFIG_DIGIEPCA is not set
# CONFIG_MOXA_INTELLIO is not set
# CONFIG_MOXA_SMARTIO is not set
# CONFIG_MOXA_SMARTIO_NEW is not set
# CONFIG_ISI is not set
# CONFIG_SYNCLINK is not set
# CONFIG_SYNCLINKMP is not set
# CONFIG_SYNCLINK_GT is not set
# CONFIG_N_HDLC is not set
# CONFIG_SPECIALIX is not set
# CONFIG_SX is not set
# CONFIG_RIO is not set
# CONFIG_STALDRV is not set
#
# Serial drivers
#
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_CONSOLE=y
CONFIG_FIX_EARLYCON_MEM=y
CONFIG_SERIAL_8250_PCI=y
CONFIG_SERIAL_8250_PNP=y
CONFIG_SERIAL_8250_NR_UARTS=32
CONFIG_SERIAL_8250_RUNTIME_UARTS=4
CONFIG_SERIAL_8250_EXTENDED=y
CONFIG_SERIAL_8250_MANY_PORTS=y
CONFIG_SERIAL_8250_SHARE_IRQ=y
CONFIG_SERIAL_8250_DETECT_IRQ=y
CONFIG_SERIAL_8250_RSA=y
#
# 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
CONFIG_IPMI_HANDLER=m
# CONFIG_IPMI_PANIC_EVENT is not set
CONFIG_IPMI_DEVICE_INTERFACE=m
CONFIG_IPMI_SI=m
CONFIG_IPMI_WATCHDOG=m
CONFIG_IPMI_POWEROFF=m
CONFIG_HW_RANDOM=y
# CONFIG_HW_RANDOM_INTEL is not set
CONFIG_HW_RANDOM_AMD=m
CONFIG_NVRAM=y
CONFIG_RTC=y
# CONFIG_R3964 is not set
# CONFIG_APPLICOM is not set
# CONFIG_MWAVE is not set
# CONFIG_PC8736x_GPIO is not set
# CONFIG_RAW_DRIVER is not set
CONFIG_HPET=y
# CONFIG_HPET_RTC_IRQ is not set
# CONFIG_HPET_MMAP is not set
CONFIG_HANGCHECK_TIMER=m
# CONFIG_TCG_TPM is not set
# CONFIG_TELCLOCK is not set
CONFIG_DEVPORT=y
# CONFIG_I2C is not set
#
# SPI support
#
# CONFIG_SPI is not set
# CONFIG_SPI_MASTER is not set
# CONFIG_W1 is not set
# CONFIG_POWER_SUPPLY is not set
# CONFIG_HWMON is not set
# CONFIG_WATCHDOG is not set
#
# Sonics Silicon Backplane
#
CONFIG_SSB_POSSIBLE=y
# CONFIG_SSB is not set
#
# Multifunction device drivers
#
# CONFIG_MFD_SM501 is not set
#
# Multimedia devices
#
# CONFIG_VIDEO_DEV is not set
# CONFIG_DVB_CORE is not set
# CONFIG_DAB is not set
#
# Graphics support
#
CONFIG_AGP=y
CONFIG_AGP_AMD64=y
# CONFIG_AGP_INTEL is not set
# CONFIG_AGP_SIS is not set
# CONFIG_AGP_VIA is not set
# CONFIG_DRM is not set
# CONFIG_VGASTATE is not set
# CONFIG_VIDEO_OUTPUT_CONTROL is not set
# CONFIG_FB is not set
CONFIG_BACKLIGHT_LCD_SUPPORT=y
# CONFIG_LCD_CLASS_DEVICE is not set
CONFIG_BACKLIGHT_CLASS_DEVICE=y
# CONFIG_BACKLIGHT_CORGI is not set
# CONFIG_BACKLIGHT_PROGEAR is not set
#
# Display device support
#
# CONFIG_DISPLAY_SUPPORT is not set
#
# Console display driver support
#
CONFIG_VGA_CONSOLE=y
CONFIG_VGACON_SOFT_SCROLLBACK=y
CONFIG_VGACON_SOFT_SCROLLBACK_SIZE=64
CONFIG_VIDEO_SELECT=y
CONFIG_DUMMY_CONSOLE=y
#
# Sound
#
# CONFIG_SOUND is not set
CONFIG_HID_SUPPORT=y
CONFIG_HID=y
CONFIG_HID_DEBUG=y
# CONFIG_HIDRAW is not set
#
# USB Input Devices
#
CONFIG_USB_HID=y
CONFIG_USB_HIDINPUT_POWERBOOK=y
# CONFIG_HID_FF is not set
CONFIG_USB_HIDDEV=y
CONFIG_USB_SUPPORT=y
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_DEVICE_CLASS is not set
# CONFIG_USB_DYNAMIC_MINORS is not set
CONFIG_USB_SUSPEND=y
# CONFIG_USB_PERSIST is not set
# CONFIG_USB_OTG is not set
#
# USB Host Controller Drivers
#
CONFIG_USB_EHCI_HCD=m
CONFIG_USB_EHCI_SPLIT_ISO=y
CONFIG_USB_EHCI_ROOT_HUB_TT=y
CONFIG_USB_EHCI_TT_NEWSCHED=y
# CONFIG_USB_ISP116X_HCD is not set
CONFIG_USB_OHCI_HCD=m
# CONFIG_USB_OHCI_BIG_ENDIAN_DESC is not set
# CONFIG_USB_OHCI_BIG_ENDIAN_MMIO is not set
CONFIG_USB_OHCI_LITTLE_ENDIAN=y
CONFIG_USB_UHCI_HCD=m
# CONFIG_USB_SL811_HCD is not set
# CONFIG_USB_R8A66597_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 is not set
# CONFIG_USB_LIBUSUAL is not set
#
# USB Imaging devices
#
# CONFIG_USB_MDC800 is not set
# CONFIG_USB_MICROTEK 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_BERRY_CHARGE 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_IOWARRIOR is not set
# CONFIG_USB_TEST is not set
#
# USB DSL modem support
#
#
# USB Gadget Support
#
# CONFIG_USB_GADGET is not set
# CONFIG_MMC is not set
# CONFIG_NEW_LEDS is not set
CONFIG_INFINIBAND=m
CONFIG_INFINIBAND_USER_MAD=m
CONFIG_INFINIBAND_USER_ACCESS=m
CONFIG_INFINIBAND_USER_MEM=y
CONFIG_INFINIBAND_ADDR_TRANS=y
CONFIG_INFINIBAND_MTHCA=m
CONFIG_INFINIBAND_MTHCA_DEBUG=y
CONFIG_INFINIBAND_IPATH=m
CONFIG_INFINIBAND_AMSO1100=m
# CONFIG_INFINIBAND_AMSO1100_DEBUG is not set
CONFIG_MLX4_INFINIBAND=m
CONFIG_INFINIBAND_IPOIB=m
# CONFIG_INFINIBAND_IPOIB_CM is not set
CONFIG_INFINIBAND_IPOIB_DEBUG=y
CONFIG_INFINIBAND_IPOIB_DEBUG_DATA=y
CONFIG_INFINIBAND_SRP=m
CONFIG_INFINIBAND_ISER=m
CONFIG_EDAC=y
#
# Reporting subsystems
#
# CONFIG_EDAC_DEBUG is not set
CONFIG_EDAC_MM_EDAC=m
CONFIG_EDAC_E752X=m
CONFIG_EDAC_I82975X=m
CONFIG_EDAC_I5000=m
# CONFIG_RTC_CLASS is not set
# CONFIG_DMADEVICES is not set
# CONFIG_VIRTUALIZATION is not set
#
# Userspace I/O
#
# CONFIG_UIO is not set
#
# Firmware Drivers
#
# CONFIG_EDD is not set
# CONFIG_DELL_RBU is not set
# CONFIG_DCDBAS is not set
CONFIG_DMIID=y
#
# File systems
#
# CONFIG_EXT2_FS is not set
# CONFIG_EXT3_FS is not set
# CONFIG_EXT4DEV_FS is not set
# CONFIG_REISERFS_FS is not set
# CONFIG_JFS_FS is not set
CONFIG_FS_POSIX_ACL=y
# CONFIG_XFS_FS 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 is not set
CONFIG_DNOTIFY=y
# CONFIG_AUTOFS_FS is not set
# CONFIG_AUTOFS4_FS is not set
# CONFIG_FUSE_FS is not set
CONFIG_GENERIC_ACL=y
#
# CD-ROM/DVD Filesystems
#
# CONFIG_ISO9660_FS is not set
# CONFIG_UDF_FS is not set
#
# DOS/FAT/NT Filesystems
#
# CONFIG_MSDOS_FS is not set
# CONFIG_VFAT_FS is not set
# CONFIG_NTFS_FS is not set
#
# Pseudo filesystems
#
CONFIG_PROC_FS=y
CONFIG_PROC_KCORE=y
CONFIG_PROC_VMCORE=y
CONFIG_PROC_SYSCTL=y
CONFIG_SYSFS=y
CONFIG_TMPFS=y
CONFIG_TMPFS_POSIX_ACL=y
CONFIG_HUGETLBFS=y
CONFIG_HUGETLB_PAGE=y
CONFIG_CONFIGFS_FS=y
#
# 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
CONFIG_NETWORK_FILESYSTEMS=y
CONFIG_NFS_FS=m
CONFIG_NFS_V3=y
CONFIG_NFS_V3_ACL=y
CONFIG_NFS_V4=y
CONFIG_NFS_DIRECTIO=y
# CONFIG_NFSD is not set
CONFIG_LOCKD=m
CONFIG_LOCKD_V4=y
CONFIG_NFS_ACL_SUPPORT=m
CONFIG_NFS_COMMON=y
CONFIG_SUNRPC=m
CONFIG_SUNRPC_GSS=m
CONFIG_SUNRPC_XPRT_RDMA=m
CONFIG_SUNRPC_BIND34=y
CONFIG_RPCSEC_GSS_KRB5=m
# 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
#
# Partition Types
#
# CONFIG_PARTITION_ADVANCED is not set
CONFIG_MSDOS_PARTITION=y
# CONFIG_NLS is not set
# CONFIG_DLM is not set
CONFIG_INSTRUMENTATION=y
CONFIG_PROFILING=y
CONFIG_OPROFILE=m
CONFIG_KPROBES=y
# CONFIG_MARKERS is not set
#
# Kernel hacking
#
CONFIG_TRACE_IRQFLAGS_SUPPORT=y
# CONFIG_PRINTK_TIME is not set
CONFIG_ENABLE_WARN_DEPRECATED=y
CONFIG_ENABLE_MUST_CHECK=y
CONFIG_MAGIC_SYSRQ=y
# CONFIG_UNUSED_SYMBOLS is not set
CONFIG_DEBUG_FS=y
# CONFIG_HEADERS_CHECK is not set
CONFIG_DEBUG_KERNEL=y
CONFIG_DEBUG_SHIRQ=y
CONFIG_DETECT_SOFTLOCKUP=y
CONFIG_SCHED_DEBUG=y
CONFIG_SCHEDSTATS=y
CONFIG_TIMER_STATS=y
# CONFIG_DEBUG_SLAB is not set
# CONFIG_DEBUG_RT_MUTEXES is not set
# CONFIG_RT_MUTEX_TESTER is not set
# CONFIG_DEBUG_SPINLOCK is not set
# CONFIG_DEBUG_MUTEXES is not set
# CONFIG_DEBUG_LOCK_ALLOC is not set
# CONFIG_PROVE_LOCKING is not set
# CONFIG_LOCK_STAT is not set
CONFIG_DEBUG_SPINLOCK_SLEEP=y
# CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set
# CONFIG_DEBUG_KOBJECT is not set
CONFIG_DEBUG_BUGVERBOSE=y
CONFIG_DEBUG_INFO=y
# CONFIG_DEBUG_VM is not set
CONFIG_DEBUG_LIST=y
# CONFIG_DEBUG_SG is not set
# CONFIG_FRAME_POINTER is not set
# CONFIG_FORCED_INLINING is not set
# CONFIG_BOOT_PRINTK_DELAY is not set
# CONFIG_RCU_TORTURE_TEST is not set
# CONFIG_LKDTM is not set
# CONFIG_FAULT_INJECTION is not set
# CONFIG_SAMPLES is not set
CONFIG_EARLY_PRINTK=y
CONFIG_DEBUG_STACKOVERFLOW=y
# CONFIG_DEBUG_STACK_USAGE is not set
CONFIG_DEBUG_RODATA=y
# CONFIG_IOMMU_DEBUG is not set
#
# Security options
#
# CONFIG_KEYS is not set
# CONFIG_SECURITY is not set
# CONFIG_SECURITY_FILE_CAPABILITIES is not set
CONFIG_CRYPTO=y
CONFIG_CRYPTO_ALGAPI=y
CONFIG_CRYPTO_BLKCIPHER=m
CONFIG_CRYPTO_HASH=y
CONFIG_CRYPTO_MANAGER=y
CONFIG_CRYPTO_HMAC=y
# CONFIG_CRYPTO_XCBC is not set
# CONFIG_CRYPTO_NULL is not set
# CONFIG_CRYPTO_MD4 is not set
CONFIG_CRYPTO_MD5=y
CONFIG_CRYPTO_SHA1=y
# 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_GF128MUL=m
# CONFIG_CRYPTO_ECB is not set
CONFIG_CRYPTO_CBC=m
# CONFIG_CRYPTO_PCBC is not set
# CONFIG_CRYPTO_LRW is not set
# CONFIG_CRYPTO_XTS is not set
# CONFIG_CRYPTO_CRYPTD is not set
CONFIG_CRYPTO_DES=y
# CONFIG_CRYPTO_FCRYPT is not set
# CONFIG_CRYPTO_BLOWFISH is not set
# CONFIG_CRYPTO_TWOFISH is not set
# CONFIG_CRYPTO_TWOFISH_X86_64 is not set
# CONFIG_CRYPTO_SERPENT is not set
# CONFIG_CRYPTO_AES is not set
CONFIG_CRYPTO_AES_X86_64=y
# 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_SEED is not set
# CONFIG_CRYPTO_DEFLATE is not set
# CONFIG_CRYPTO_MICHAEL_MIC is not set
# CONFIG_CRYPTO_CRC32C is not set
# CONFIG_CRYPTO_CAMELLIA is not set
# CONFIG_CRYPTO_TEST is not set
# CONFIG_CRYPTO_AUTHENC is not set
# CONFIG_CRYPTO_HW is not set
#
# Library routines
#
CONFIG_BITREVERSE=y
# CONFIG_CRC_CCITT is not set
# CONFIG_CRC16 is not set
# CONFIG_CRC_ITU_T is not set
CONFIG_CRC32=y
# CONFIG_CRC7 is not set
CONFIG_LIBCRC32C=y
CONFIG_PLIST=y
CONFIG_HAS_IOMEM=y
CONFIG_HAS_IOPORT=y
CONFIG_HAS_DMA=y
On Fri, 2007-12-21 at 16:52 -0500, David Dillow wrote:
> Before I get too far into this, has anyone seen this one before? I
> looked at 'git diff v2.6.24-rc4..' and didn't see any changes that would
> stand out as fixing it.
This should read v2.6.24-rc5...
> I'm getting the following oops when doing the following commands:
>
> modprobe ib_srp
> <add targets(s) to ib_srp using sysfs>
> rmmod ib_srp
> modprobe ib_srp
> <OOPS>
>
> I'm going to try and track down how the list is getting corrupted; it
> looks like attribute_container_list in
> drivers/base/attribute_container.c is the one getting corrupted.
>
> Before I get too far into this, has anyone seen this one before? I
> looked at 'git diff v2.6.24-rc4..' and didn't see any changes that would
> stand out as fixing it.
I haven't seen this, but I actually haven't done much srp testing with
post-2.6.23 kernels. From a quick skim through the code, I would
guess that one of the calls to transport_container_unregister() in
srp_release_transport() (which is called one module unload) is
failing and leaving something bogus on the attribute_container_list.
This could because the underlying call to attribute_container_unregister()
fails because the k_list is not empty. I don't know if this is some
sort of leak in the ib_srp driver, or something broken elsewhere...
- R.
On Fri, 2007-12-21 at 16:52 -0500, David Dillow wrote:
> I'm getting the following oops when doing the following commands:
>
> modprobe ib_srp
> <add targets(s) to ib_srp using sysfs>
> rmmod ib_srp
> modprobe ib_srp
> <OOPS>
>
> I'm going to try and track down how the list is getting corrupted; it
> looks like attribute_container_list in
> drivers/base/attribute_container.c is the one getting corrupted.
Ok, found the culprit, now to figure out the motive and fix it.
ib_srp's srp_cleanup_module calls srp_release_transport(), which calls
transport_container_unregister() for the rport_attr_cont member of
struct srp_internal.
That last unregister call is returning -EBUSY, but it gets ignored, and
the list node gets erased (or just reused) when the module's text/memory
is free'd.
Now, to see if ib_srp should be waiting for everything to be destroyed
before calling srp_release_transport(), or if it is just not removing
some attributes properly.
That's a next week thing if no one beats me to it.
[email protected] wrote on Fri, 21 Dec 2007 17:18 -0500:
> On Fri, 2007-12-21 at 16:52 -0500, David Dillow wrote:
> > I'm getting the following oops when doing the following commands:
> >
> > modprobe ib_srp
> > <add targets(s) to ib_srp using sysfs>
> > rmmod ib_srp
> > modprobe ib_srp
> > <OOPS>
> >
> > I'm going to try and track down how the list is getting corrupted; it
> > looks like attribute_container_list in
> > drivers/base/attribute_container.c is the one getting corrupted.
>
> Ok, found the culprit, now to figure out the motive and fix it.
>
> ib_srp's srp_cleanup_module calls srp_release_transport(), which calls
> transport_container_unregister() for the rport_attr_cont member of
> struct srp_internal.
>
> That last unregister call is returning -EBUSY, but it gets ignored, and
> the list node gets erased (or just reused) when the module's text/memory
> is free'd.
>
> Now, to see if ib_srp should be waiting for everything to be destroyed
> before calling srp_release_transport(), or if it is just not removing
> some attributes properly.
I don't see where srp_cleanup_module() is calling srp_remove_host().
That is the likely way that transport devices should be made to go
away. Something on the order of srp_remove_work().
Or srp_remove_one() except with a call to srp_remove_host() may be
necessary. In fact, maybe just adding that call will fix it, as
ib_unregister_client should drive the remove function. Guesses, all
this.
-- Pete
On Fri, 21 Dec 2007 17:18:52 -0500
David Dillow <[email protected]> wrote:
>
> On Fri, 2007-12-21 at 16:52 -0500, David Dillow wrote:
> > I'm getting the following oops when doing the following commands:
> >
> > modprobe ib_srp
> > <add targets(s) to ib_srp using sysfs>
> > rmmod ib_srp
> > modprobe ib_srp
> > <OOPS>
> >
> > I'm going to try and track down how the list is getting corrupted; it
> > looks like attribute_container_list in
> > drivers/base/attribute_container.c is the one getting corrupted.
>
> Ok, found the culprit, now to figure out the motive and fix it.
>
> ib_srp's srp_cleanup_module calls srp_release_transport(), which calls
> transport_container_unregister() for the rport_attr_cont member of
> struct srp_internal.
>
> That last unregister call is returning -EBUSY, but it gets ignored, and
> the list node gets erased (or just reused) when the module's text/memory
> is free'd.
transport_container_unregister(&i->rport_attr_cont) should not fail here.
It fails because there is still a srp rport.
I think that as Pete pointed out, srp_remove_one needs to call
srp_remove_host.
Can you try this?
Thanks,
diff --git a/drivers/infiniband/ulp/srp/ib_srp.c b/drivers/infiniband/ulp/srp/ib_srp.c
index 950228f..bdb6f85 100644
--- a/drivers/infiniband/ulp/srp/ib_srp.c
+++ b/drivers/infiniband/ulp/srp/ib_srp.c
@@ -2053,6 +2053,7 @@ static void srp_remove_one(struct ib_device *device)
list_for_each_entry_safe(target, tmp_target,
&host->target_list, list) {
+ srp_remove_host(target->scsi_host);
scsi_remove_host(target->scsi_host);
srp_disconnect_target(target);
ib_destroy_cm_id(target->cm_id);
On Sun, 2007-12-23 at 01:41 +0900, FUJITA Tomonori wrote:
> I think that as Pete pointed out, srp_remove_one needs to call
> srp_remove_host.
>
> Can you try this?
If I need to escape family during the holidays, I'll test it from home.
Otherwise I'll be able to test on Wednesday.
Thanks for the patch,
Dave
> diff --git a/drivers/infiniband/ulp/srp/ib_srp.c b/drivers/infiniband/ulp/srp/ib_srp.c
> index 950228f..bdb6f85 100644
> --- a/drivers/infiniband/ulp/srp/ib_srp.c
> +++ b/drivers/infiniband/ulp/srp/ib_srp.c
> @@ -2053,6 +2053,7 @@ static void srp_remove_one(struct ib_device *device)
>
> list_for_each_entry_safe(target, tmp_target,
> &host->target_list, list) {
> + srp_remove_host(target->scsi_host);
> scsi_remove_host(target->scsi_host);
> srp_disconnect_target(target);
> ib_destroy_cm_id(target->cm_id);
On Sun, 2007-12-23 at 01:41 +0900, FUJITA Tomonori wrote:
> transport_container_unregister(&i->rport_attr_cont) should not fail here.
>
> It fails because there is still a srp rport.
>
> I think that as Pete pointed out, srp_remove_one needs to call
> srp_remove_host.
>
> Can you try this?
That patched oopsed in scsi_remove_host(), but reversing the order has
survived over 500 insert/probe/remove cycles.
Tested-by: David Dillow <[email protected]>
---
diff --git a/drivers/infiniband/ulp/srp/ib_srp.c b/drivers/infiniband/ulp/srp/ib_srp.c
index 950228f..77e8b90 100644
--- a/drivers/infiniband/ulp/srp/ib_srp.c
+++ b/drivers/infiniband/ulp/srp/ib_srp.c
@@ -2054,6 +2054,7 @@ static void srp_remove_one(struct ib_device *device)
list_for_each_entry_safe(target, tmp_target,
&host->target_list, list) {
scsi_remove_host(target->scsi_host);
+ srp_remove_host(target->scsi_host);
srp_disconnect_target(target);
ib_destroy_cm_id(target->cm_id);
srp_free_target_ib(target);
On Wed, 26 Dec 2007 12:14:11 -0500
David Dillow <[email protected]> wrote:
>
> On Sun, 2007-12-23 at 01:41 +0900, FUJITA Tomonori wrote:
> > transport_container_unregister(&i->rport_attr_cont) should not fail here.
> >
> > It fails because there is still a srp rport.
> >
> > I think that as Pete pointed out, srp_remove_one needs to call
> > srp_remove_host.
> >
> > Can you try this?
>
> That patched oopsed in scsi_remove_host(), but reversing the order has
> survived over 500 insert/probe/remove cycles.
Thanks,
Can you post the oops message? The srp class might have bugs related
to it.
> Tested-by: David Dillow <[email protected]>
> ---
> diff --git a/drivers/infiniband/ulp/srp/ib_srp.c b/drivers/infiniband/ulp/srp/ib_srp.c
> index 950228f..77e8b90 100644
> --- a/drivers/infiniband/ulp/srp/ib_srp.c
> +++ b/drivers/infiniband/ulp/srp/ib_srp.c
> @@ -2054,6 +2054,7 @@ static void srp_remove_one(struct ib_device *device)
> list_for_each_entry_safe(target, tmp_target,
> &host->target_list, list) {
> scsi_remove_host(target->scsi_host);
> + srp_remove_host(target->scsi_host);
> srp_disconnect_target(target);
> ib_destroy_cm_id(target->cm_id);
> srp_free_target_ib(target);
>
>
On Thu, 2007-12-27 at 11:58 +0900, FUJITA Tomonori wrote:
> On Wed, 26 Dec 2007 12:14:11 -0500
> David Dillow <[email protected]> wrote:
>
> >
> > On Sun, 2007-12-23 at 01:41 +0900, FUJITA Tomonori wrote:
> > > transport_container_unregister(&i->rport_attr_cont) should not fail here.
> > >
> > > It fails because there is still a srp rport.
> > >
> > > I think that as Pete pointed out, srp_remove_one needs to call
> > > srp_remove_host.
> > >
> > > Can you try this?
> >
> > That patched oopsed in scsi_remove_host(), but reversing the order has
> > survived over 500 insert/probe/remove cycles.
>
> Thanks,
>
> Can you post the oops message? The srp class might have bugs related
> to it.
This is the oops generated by doing srp_remove_host() prior to
scsi_remove_host() in 2.6.24-rc5:
Unable to handle kernel NULL pointer dereference at 0000000000000020 RIP:
[<ffffffff811d058d>] klist_del+0xa/0x46
PGD 8450d8067 PUD 843cbd067 PMD 0
Oops: 0000 [1] SMP
CPU 3
Modules linked in: sg sd_mod ib_iser libiscsi scsi_transport_iscsi rdma_ucm ib_ucm rdma_cm iw_cm ib_addr ib_srp scsi_transport_srp scsi_mod ib_cm ib_ipoib ib_sa ib_uverbs ib_umad ib_mthca ib_mad ib_core ehci_hcd ohci_hcd nfs lockd nfs_acl sunrpc unionfs forcedeth
Pid: 2450, comm: rmmod Not tainted 2.6.24-rc5 #2
RIP: 0010:[<ffffffff811d058d>] [<ffffffff811d058d>] klist_del+0xa/0x46
RSP: 0018:ffff81084192bd28 EFLAGS: 00010282
RAX: ffff81084600b000 RBX: 0000000000000000 RCX: ffffe2001ce562c8
RDX: 0000000000000000 RSI: ffff810447c1d000 RDI: ffff81084657f050
RBP: ffff81084657f028 R08: ffff810447c1d000 R09: ffff8108455a1800
R10: ffff8108455a1800 R11: ffff810846730808 R12: ffff81084657f050
R13: ffff810844c4a170 R14: ffff81084657f028 R15: 0000000000000880
FS: 00002afbf1b0b6e0(0000) GS:ffff810846531840(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
CR2: 0000000000000020 CR3: 0000000843c56000 CR4: 00000000000006e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Process rmmod (pid: 2450, threadinfo ffff81084192a000, task ffff810844d47620)
Stack: ffff810844c4a000 ffff81084657f028 ffff81084657f000 ffffffff8114cbd6
ffff810846730808 ffff810844c4a000 ffff81084657f028 ffff81084657f000
0000000000000246 ffffffff88118322 ffff8108455a1800 ffff81084657f000
Call Trace:
[<ffffffff8114cbd6>] device_del+0x20/0x2f0
[<ffffffff88118322>] :scsi_mod:scsi_target_reap_usercontext+0x53/0xbd
[<ffffffff810455ce>] execute_in_process_context+0x20/0x47
[<ffffffff8811a4da>] :scsi_mod:scsi_device_dev_release_usercontext+0xd3/0x105
[<ffffffff810455ce>] execute_in_process_context+0x20/0x47
[<ffffffff810ed9b8>] kobject_cleanup+0x2f/0x51
[<ffffffff810ed9da>] kobject_release+0x0/0x9
[<ffffffff810ee692>] kref_put+0x74/0x82
[<ffffffff88119f02>] :scsi_mod:scsi_forget_host+0x53/0x55
[<ffffffff88112018>] :scsi_mod:scsi_remove_host+0x76/0xf7
[<ffffffff8813d161>] :ib_srp:srp_remove_one+0x102/0x19d
[<ffffffff880ac2bc>] :ib_core:ib_unregister_client+0x40/0xb3
[<ffffffff8813d20a>] :ib_srp:srp_cleanup_module+0xe/0x34
[<ffffffff810551f1>] sys_delete_module+0x18d/0x1bc
[<ffffffff811d3879>] error_exit+0x0/0x51
[<ffffffff8100be6e>] system_call+0x7e/0x83
Code: 48 8b 6b 20 48 89 df e8 b7 2f 00 00 4c 89 e7 e8 d2 ff ff ff
RIP [<ffffffff811d058d>] klist_del+0xa/0x46
RSP <ffff81084192bd28>
CR2: 0000000000000020
> > Can you try this?
>
> That patched oopsed in scsi_remove_host(), but reversing the order has
> survived over 500 insert/probe/remove cycles.
>
> Tested-by: David Dillow <[email protected]>
> ---
> diff --git a/drivers/infiniband/ulp/srp/ib_srp.c b/drivers/infiniband/ulp/srp/ib_srp.c
> index 950228f..77e8b90 100644
> --- a/drivers/infiniband/ulp/srp/ib_srp.c
> +++ b/drivers/infiniband/ulp/srp/ib_srp.c
> @@ -2054,6 +2054,7 @@ static void srp_remove_one(struct ib_device *device)
> list_for_each_entry_safe(target, tmp_target,
> &host->target_list, list) {
> scsi_remove_host(target->scsi_host);
> + srp_remove_host(target->scsi_host);
> srp_disconnect_target(target);
Where do we stand on this? What is the right place to put the
srp_remove_host? Is there a bug somewhere else?
I'd like to get this fixed before 2.6.24 final comes out...
- R.
On Wed, 02 Jan 2008 09:51:38 -0800
Roland Dreier <[email protected]> wrote:
> > > Can you try this?
> >
> > That patched oopsed in scsi_remove_host(), but reversing the order has
> > survived over 500 insert/probe/remove cycles.
> >
> > Tested-by: David Dillow <[email protected]>
> > ---
> > diff --git a/drivers/infiniband/ulp/srp/ib_srp.c b/drivers/infiniband/ulp/srp/ib_srp.c
> > index 950228f..77e8b90 100644
> > --- a/drivers/infiniband/ulp/srp/ib_srp.c
> > +++ b/drivers/infiniband/ulp/srp/ib_srp.c
> > @@ -2054,6 +2054,7 @@ static void srp_remove_one(struct ib_device *device)
> > list_for_each_entry_safe(target, tmp_target,
> > &host->target_list, list) {
> > scsi_remove_host(target->scsi_host);
> > + srp_remove_host(target->scsi_host);
> > srp_disconnect_target(target);
>
> Where do we stand on this? What is the right place to put the
> srp_remove_host? Is there a bug somewhere else?
{sas|fc}_remove_host is called before scsi_remove_host. And in
srp_remove_work(), we call srp_remove_host and then
scsi_remove_host. ibmvscsi also calls them in that order.
I thought that I messed up something in srp_transport_class. But I
can't figure out what's wrong. The above patch works and is unlikely
to lead to critical problems so I'm fine with it for now.
> I'd like to get this fixed before 2.6.24 final comes out...
Yeah, it should be fixed.
On Thu, 2008-01-03 at 17:30 +0900, FUJITA Tomonori wrote:
> On Wed, 02 Jan 2008 09:51:38 -0800
> Roland Dreier <[email protected]> wrote:
>
> > > > Can you try this?
> > >
> > > That patched oopsed in scsi_remove_host(), but reversing the order has
> > > survived over 500 insert/probe/remove cycles.
> > >
> > > Tested-by: David Dillow <[email protected]>
> > > ---
> > > diff --git a/drivers/infiniband/ulp/srp/ib_srp.c b/drivers/infiniband/ulp/srp/ib_srp.c
> > > index 950228f..77e8b90 100644
> > > --- a/drivers/infiniband/ulp/srp/ib_srp.c
> > > +++ b/drivers/infiniband/ulp/srp/ib_srp.c
> > > @@ -2054,6 +2054,7 @@ static void srp_remove_one(struct ib_device *device)
> > > list_for_each_entry_safe(target, tmp_target,
> > > &host->target_list, list) {
> > > scsi_remove_host(target->scsi_host);
> > > + srp_remove_host(target->scsi_host);
> > > srp_disconnect_target(target);
> >
> > Where do we stand on this? What is the right place to put the
> > srp_remove_host? Is there a bug somewhere else?
>
> {sas|fc}_remove_host is called before scsi_remove_host. And in
> srp_remove_work(), we call srp_remove_host and then
> scsi_remove_host. ibmvscsi also calls them in that order.
>
> I thought that I messed up something in srp_transport_class. But I
> can't figure out what's wrong. The above patch works and is unlikely
> to lead to critical problems so I'm fine with it for now.
I added some debugging printk's -- the first word is the function name:
printk(KERN_DEBUG "ib_srp:srp_remove_one %p %p\n", target,
target->scsi_host);
printk(KERN_DEBUG "srp_rport_del %p %p %p %s\n", shost, rport, dev,
dev->kobj.k_name);
printk(KERN_DEBUG "transport_remove_dev %p %d\n", dev,
atomic_read(&dev->kobj.kref.refcount));
printk(KERN_DEBUG "transport_remove_classdev %p\n", dev);
printk(KERN_DEBUG "scsi_target_reap_usercontext %p %p %p\n", shost,
starget, &starget->dev);
And the dmesg output:
ib_srp:srp_remove_one ffff810845498450 ffff810845498000
srp_rport_del ffff810845498000 ffff8108450d6000 ffff8108450d6000 port-3:1
transport_remove_dev ffff8108450d6000 4
transport_remove_classdev ffff8108450d6000
srp_rport_del done
srp_rport_del ffff810845498000 ffff810845123028 ffff810845123028 target3:0:0
transport_remove_dev ffff810845123028 9
srp_rport_del done
transport_remove_dev ffff81084557f920 6
sd 0:0:0:0: [sda] Synchronizing SCSI cache
sd 0:0:0:0: [sda] Result: hostbyte=DID_BAD_TARGET driverbyte=DRIVER_OK,SUGGEST_OK
transport_remove_dev ffff8108454f6920 6
sd 0:0:0:1: [sdb] Synchronizing SCSI cache
sd 0:0:0:1: [sdb] Result: hostbyte=DID_BAD_TARGET driverbyte=DRIVER_OK,SUGGEST_OK
scsi_target_reap_usercontext ffff810845498000 ffff810845123000 ffff810845123028
transport_remove_dev ffff810845123028 2
It looks like srp_rport_del() is getting called for a device object it
doesn't own -- target3:0:0. And when scsi_remove_host() goes to remove
it, it is already gone.
Adding
if (strncpy(dev->kobject.k_name, "port-", 5))
return;
to the top of srp_rport_del() fixes the oops, so that seems to confirm
my hypothesis.
When scsi_remove_host() is called before srp_remove_host(), it removes
that "target3:0:0" entry, and all is happy, so the fix already posted
should be fine for 2.6.24, though we may want to fix up
srp_remove_work() as well -- I've not looked at it to see if it would
have the same problem.
As for a better fix, I'm not sure. I'll go out on a limb and bet the
other users of srp_remove_host() may have the same issue.
Dave
On Thu, 2008-01-03 at 15:09 -0500, David Dillow wrote:
> As for a better fix, I'm not sure.
Here's a better way than the strncmp. If this meets everyone's approval,
then I can roll up a proper commit.
diff --git a/drivers/scsi/scsi_transport_srp.c b/drivers/scsi/scsi_transport_srp.c
index 44a340b..65c584d 100644
--- a/drivers/scsi/scsi_transport_srp.c
+++ b/drivers/scsi/scsi_transport_srp.c
@@ -265,7 +265,8 @@ EXPORT_SYMBOL_GPL(srp_rport_del);
static int do_srp_rport_del(struct device *dev, void *data)
{
- srp_rport_del(dev_to_rport(dev));
+ if (scsi_is_srp_rport(dev))
+ srp_rport_del(dev_to_rport(dev));
return 0;
}
> + if (scsi_is_srp_rport(dev))
> + srp_rport_del(dev_to_rport(dev));
This has the ring of truth to me as the right fix, although I
certainly don't know the details of this code... Fujita-san?
- R.
On Thu, 03 Jan 2008 15:51:25 -0500
David Dillow <[email protected]> wrote:
>
> On Thu, 2008-01-03 at 15:09 -0500, David Dillow wrote:
> > As for a better fix, I'm not sure.
>
> Here's a better way than the strncmp. If this meets everyone's approval,
> then I can roll up a proper commit.
Thanks! I really apprecate it.
I think that this is the root problem and the patch fixes it in the
right way. Please send this patch to [email protected] and a
patch to move srp_remove_host before scsi_remove_host in
srp_remove_one to Roland.
Acked-by: FUJITA Tomonori <[email protected]>
> diff --git a/drivers/scsi/scsi_transport_srp.c b/drivers/scsi/scsi_transport_srp.c
> index 44a340b..65c584d 100644
> --- a/drivers/scsi/scsi_transport_srp.c
> +++ b/drivers/scsi/scsi_transport_srp.c
> @@ -265,7 +265,8 @@ EXPORT_SYMBOL_GPL(srp_rport_del);
>
> static int do_srp_rport_del(struct device *dev, void *data)
> {
> - srp_rport_del(dev_to_rport(dev));
> + if (scsi_is_srp_rport(dev))
> + srp_rport_del(dev_to_rport(dev));
> return 0;
> }
>
>
The SCSI SRP transport class currently iterates over all children
devices of the host that is being removed in srp_remove_host(). However,
not all of those children were created by the SRP transport, and
removing them will cause corruption and an oops when their creator tries
to remove them.
Signed-off-by: David Dillow <[email protected]>
Acked-by: FUJITA Tomonori <[email protected]>
---
On Fri, 2008-01-04 at 09:47 +0900, FUJITA Tomonori wrote:
> On Thu, 03 Jan 2008 15:51:25 -0500
> I think that this is the root problem and the patch fixes it in the
> right way. Please send this patch to [email protected] and a
> patch to move srp_remove_host before scsi_remove_host in
> srp_remove_one to Roland.
>
> Acked-by: FUJITA Tomonori <[email protected]>
diff --git a/drivers/scsi/scsi_transport_srp.c b/drivers/scsi/scsi_transport_srp.c
index 44a340b..65c584d 100644
--- a/drivers/scsi/scsi_transport_srp.c
+++ b/drivers/scsi/scsi_transport_srp.c
@@ -265,7 +265,8 @@ EXPORT_SYMBOL_GPL(srp_rport_del);
static int do_srp_rport_del(struct device *dev, void *data)
{
- srp_rport_del(dev_to_rport(dev));
+ if (scsi_is_srp_rport(dev))
+ srp_rport_del(dev_to_rport(dev));
return 0;
}
When removing the ib_srp module, srp_remove_one() does not release the
SRP transport class when it is releasing the SCSI host. This leads to
dangling references to kfree()'d memory, and an eventual oops.
Signed-off-by: David Dillow <[email protected]>
---
On Fri, 2008-01-04 at 09:47 +0900, FUJITA Tomonori wrote:
> I think that this is the root problem and the patch fixes it in the
> right way. Please send this patch to [email protected] and a
> patch to move srp_remove_host before scsi_remove_host in
> srp_remove_one to Roland.
>
> Acked-by: FUJITA Tomonori <[email protected]>
Not sure if your Acked-by was for this one as well, so I left it off.
diff --git a/drivers/infiniband/ulp/srp/ib_srp.c b/drivers/infiniband/ulp/srp/ib_srp.c
index 950228f..bdb6f85 100644
--- a/drivers/infiniband/ulp/srp/ib_srp.c
+++ b/drivers/infiniband/ulp/srp/ib_srp.c
@@ -2053,6 +2053,7 @@ static void srp_remove_one(struct ib_device *device)
list_for_each_entry_safe(target, tmp_target,
&host->target_list, list) {
+ srp_remove_host(target->scsi_host);
scsi_remove_host(target->scsi_host);
srp_disconnect_target(target);
ib_destroy_cm_id(target->cm_id);
On Thu, 03 Jan 2008 21:34:49 -0500
Dave Dillow <[email protected]> wrote:
> The SCSI SRP transport class currently iterates over all children
> devices of the host that is being removed in srp_remove_host(). However,
> not all of those children were created by the SRP transport, and
> removing them will cause corruption and an oops when their creator tries
> to remove them.
>
> Signed-off-by: David Dillow <[email protected]>
> Acked-by: FUJITA Tomonori <[email protected]>
> ---
Thanks!
James, please put this patch into scsi-rc-fixes.
> On Fri, 2008-01-04 at 09:47 +0900, FUJITA Tomonori wrote:
> > On Thu, 03 Jan 2008 15:51:25 -0500
> > I think that this is the root problem and the patch fixes it in the
> > right way. Please send this patch to [email protected] and a
> > patch to move srp_remove_host before scsi_remove_host in
> > srp_remove_one to Roland.
> >
> > Acked-by: FUJITA Tomonori <[email protected]>
>
> diff --git a/drivers/scsi/scsi_transport_srp.c b/drivers/scsi/scsi_transport_srp.c
> index 44a340b..65c584d 100644
> --- a/drivers/scsi/scsi_transport_srp.c
> +++ b/drivers/scsi/scsi_transport_srp.c
> @@ -265,7 +265,8 @@ EXPORT_SYMBOL_GPL(srp_rport_del);
>
> static int do_srp_rport_del(struct device *dev, void *data)
> {
> - srp_rport_del(dev_to_rport(dev));
> + if (scsi_is_srp_rport(dev))
> + srp_rport_del(dev_to_rport(dev));
> return 0;
> }
>
>
> -
> To unsubscribe from this list: send the line "unsubscribe linux-scsi" in
> the body of a message to [email protected]
> More majordomo info at http://vger.kernel.org/majordomo-info.html
On Thu, 03 Jan 2008 21:39:19 -0500
Dave Dillow <[email protected]> wrote:
> When removing the ib_srp module, srp_remove_one() does not release the
> SRP transport class when it is releasing the SCSI host. This leads to
> dangling references to kfree()'d memory, and an eventual oops.
>
> Signed-off-by: David Dillow <[email protected]>
Thanks again!
Linus has already merged your previous patch:
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=b0e47c8b79154772a436f25bf7646733e1d6194c
So please resend a patch to move srp_remove_host before
scsi_remove_host instead of adding srp_remove_host.
> ---
> On Fri, 2008-01-04 at 09:47 +0900, FUJITA Tomonori wrote:
> > I think that this is the root problem and the patch fixes it in the
> > right way. Please send this patch to [email protected] and a
> > patch to move srp_remove_host before scsi_remove_host in
> > srp_remove_one to Roland.
> >
> > Acked-by: FUJITA Tomonori <[email protected]>
>
> Not sure if your Acked-by was for this one as well, so I left it off.
Acked-by: FUJITA Tomonori <[email protected]>
> diff --git a/drivers/infiniband/ulp/srp/ib_srp.c b/drivers/infiniband/ulp/srp/ib_srp.c
> index 950228f..bdb6f85 100644
> --- a/drivers/infiniband/ulp/srp/ib_srp.c
> +++ b/drivers/infiniband/ulp/srp/ib_srp.c
> @@ -2053,6 +2053,7 @@ static void srp_remove_one(struct ib_device *device)
>
> list_for_each_entry_safe(target, tmp_target,
> &host->target_list, list) {
> + srp_remove_host(target->scsi_host);
> scsi_remove_host(target->scsi_host);
> srp_disconnect_target(target);
> ib_destroy_cm_id(target->cm_id);
>
The documented call sequence for removing a host is to call the
transport xxx_remove_host() prior to scsi_remove_host(). The SRP
transport used to crash when that order was followed, but as it is now
fixed, use the documented order.
Signed-off-by: David Dillow <[email protected]>
Acked-by: FUJITA Tomonori <[email protected]>
---
On Fri, 2008-01-04 at 11:54 +0900, FUJITA Tomonori wrote:
> Linus has already merged your previous patch:
[snip]
> So please resend a patch to move srp_remove_host before
> scsi_remove_host instead of adding srp_remove_host.
[snip]
> > Not sure if your Acked-by was for this one as well, so I left it off.
>
> Acked-by: FUJITA Tomonori <[email protected]>
diff --git a/drivers/infiniband/ulp/srp/ib_srp.c b/drivers/infiniband/ulp/srp/ib_srp.c
index 77e8b90..bdb6f85 100644
--- a/drivers/infiniband/ulp/srp/ib_srp.c
+++ b/drivers/infiniband/ulp/srp/ib_srp.c
@@ -2053,8 +2053,8 @@ static void srp_remove_one(struct ib_device *device)
list_for_each_entry_safe(target, tmp_target,
&host->target_list, list) {
- scsi_remove_host(target->scsi_host);
srp_remove_host(target->scsi_host);
+ scsi_remove_host(target->scsi_host);
srp_disconnect_target(target);
ib_destroy_cm_id(target->cm_id);
srp_free_target_ib(target);
thanks, applied.