libhugetlbfs causes kernel panic on system x machine

[divya <dipraksh@linux.vnet.ibm.com>]

[-- Attachment #1: Type: text/plain, Size: 1328 bytes --]

Hi,

With 4G memory available on the system x machine
  Memory: 3975224k/4980736k available (3764k kernel code, 787208k absent, 218304k reserved, 5318k data, 1272k init)

and by using the attached config file on the kernel versions 2.6.36-rc1 and 2.6.36-rc2
- getting the following panic call trace while running libhugetlbfs autotest

mls21b login: -- 0:conmux-control -- time-stamp -- Aug/21/10 19:52:48 --
-- 0:conmux-control -- time-stamp -- Aug/21/10 20:01:24 --
Kernel panic - not syncing: Out of memory and no killable processes...

Pid: 24576, comm: mmap-cow Not tainted 2.6.36-rc1-git4-autotest #1
Call Trace:
  [<ffffffff813a1906>] panic+0x8c/0x196
  [<ffffffff810da058>] out_of_memory+0x2e8/0x375
  [<ffffffff810de1e6>] __alloc_pages_nodemask+0x556/0x6ac
  [<ffffffff81107717>] alloc_page_vma+0x16d/0x18c
  [<ffffffff810ef661>] do_wp_page+0x384/0x745
  [<ffffffff810ef051>] ? __do_fault+0x412/0x449
  [<ffffffff810f1604>] handle_mm_fault+0x959/0x9c2
  [<ffffffff813a7379>] do_page_fault+0x38e/0x3b2
  [<ffffffff810f7138>] ? do_mmap_pgoff+0x290/0x2f3
  [<ffffffff810f72af>] ? sys_mmap_pgoff+0x114/0x126
  [<ffffffff813a46df>] page_fault+0x1f/0x30
-- 0:conmux-control -- time-stamp -- Aug/21/10 20:03:24 --
-- 0:conmux-control -- time-stamp -- Aug/21/10 20:11:57 --
(bot:conmon-payload) disconnected

Thanks
Divya






[-- Attachment #2: config_sparsemem_vmemmap --]
[-- Type: text/plain, Size: 3165 bytes --]

CONFIG_FLATMEM=n
CONFIG_DISCONTIGMEM=n
CONFIG_SPARSEMEM=n
CONFIG_SPARSEMEM_EXTREME=n
CONFIG_SPARSEMEM_VMEMMAP=y
CONFIG_USB_STORAGE_CYPRESS_ATACB=n
CONFIG_LOCALVERSION_AUTO=n
CONFIG_LOCALVERSION=""
CONFIG_GROUP_SCHED=y
CONFIG_FAIR_GROUP_SCHED=y
CONFIG_CGROUP_SCHED=y
CONFIG_CGROUPS=y
CONFIG_CGROUP_NS=y
CONFIG_CGROUP_FREEZER=y
CONFIG_CGROUP_DEVICE=y
CONFIG_CPUSETS=y
CONFIG_PROC_PID_CPUSET=y
CONFIG_CGROUP_CPUACCT=y
CONFIG_RESOURCE_COUNTERS=y
CONFIG_CGROUP_MEM_RES_CTLR=y
CONFIG_CGROUP_MEM_RES_CTLR_SWAP=y
CONFIG_MM_OWNER=y
CONFIG_NAMESPACES=y
CONFIG_UTS_NS=y
CONFIG_IPC_NS=y
CONFIG_USER_NS=y
CONFIG_PID_NS=y
CONFIG_NET_NS=y
CONFIG_LOCALVERSION_AUTO=n
CONFIG_LOCALVERSION=""
CONFIG_KALLSYMS=y
CONFIG_KALLSYMS_ALL=y
CONFIG_HOTPLUG=y
CONFIG_KEXEC=y
CONFIG_PM=y
CONFIG_EXT2_FS=y
CONFIG_EXT2_FS_XATTR=y
CONFIG_EXT2_FS_POSIX_ACL=y
CONFIG_EXT2_FS_SECURITY=y
CONFIG_EXT3_FS_XATTR=y
CONFIG_EXT3_FS_POSIX_ACL=y
CONFIG_EXT3_FS_SECURITY=y
CONFIG_EXT4_FS=y
CONFIG_EXT4DEV_COMPAT=y
CONFIG_EXT4_FS_XATTR=y
CONFIG_EXT4_FS_POSIX_ACL=y
CONFIG_EXT4_FS_SECURITY=y
CONFIG_JBD=y
CONFIG_JBD2=y
CONFIG_REISERFS_FS=y
CONFIG_REISERFS_PROC_INFO=y
CONFIG_REISERFS_FS_XATTR=y
CONFIG_REISERFS_FS_POSIX_ACL=y
CONFIG_REISERFS_FS_SECURITY=y
CONFIG_JFS_FS=m
CONFIG_JFS_POSIX_ACL=y
CONFIG_JFS_SECURITY=y
CONFIG_XFS_FS=m
CONFIG_XFS_QUOTA=y
CONFIG_XFS_POSIX_ACL=y
CONFIG_XFS_RT=y
CONFIG_BTRFS_FS=m
CONFIG_BTRFS_FS_POSIX_ACL=y
CONFIG_HUGETLBFS=y
CONFIG_HUGETLB_PAGE=y
CONFIG_PROC_VMCORE=y
CONFIG_NETWORK_FILESYSTEMS=y
CONFIG_NFS_FS=m
CONFIG_NFS_V3=y
CONFIG_NFS_V3_ACL=y
CONFIG_NFS_V4=y
CONFIG_NFS_SWAP=y
CONFIG_NFSD=m
CONFIG_NFSD_V2_ACL=y
CONFIG_NFSD_V3=y
CONFIG_NFSD_V3_ACL=y
CONFIG_NFSD_V4=y
CONFIG_LOCKD=m
CONFIG_LOCKD_V4=y
CONFIG_EXPORTFS=m
CONFIG_NFS_ACL_SUPPORT=m
CONFIG_NFS_COMMON=y
CONFIG_TASKSTATS=y
CONFIG_TASK_DELAY_ACCT=y
CONFIG_TASK_XACCT=y
CONFIG_TASK_IO_ACCOUNTING=y
CONFIG_TREE_RCU=y
CONFIG_RCU_FANOUT=64
ONFIG_SLAB_ALLOCATOR=y
CONFIG_SLAB=y
CONFIG_DETECT_SOFTLOCKUP=y
CONFIG_DEBUG_SLAB=y
CONFIG_RCU_CPU_STALL_DETECTOR=y
CONFIG_HAVE_DYNAMIC_FTRACE=y
CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y
CONFIG_HAVE_FTRACE_SYSCALLS=y
CONFIG_FTRACE=y
CONFIG_HAVE_KVM=y
CONFIG_HAVE_KVM_IRQCHIP=y
CONFIG_VIRTUALIZATION=y
CONFIG_KVM=y
CONFIG_KVM_AMD=m
CONFIG_KVM_INTEL=m
CONFIG_VIRTIO=y
CONFIG_VIRTIO_RING=y
CONFIG_VIRTIO_PCI=y
CONFIG_VIRTIO_BALLOON=y
CONFIG_VIRTIO_BLK=y
CONFIG_VIRTIO_NET=y
CONFIG_DEVPTS_MULTIPLE_INSTANCES=y
CONFIG_IMA=y
CONFIG_IMA_MEASURE_PCR_IDX=10
CONFIG_IMA_AUDIT=y
CONFIG_IMA_LSM_RULES=y
CONFIG_X86_SUPPORTS_MEMORY_FAILURE=y
CONFIG_ARCH_SUPPORTS_MEMORY_FAILURE=y
CONFIG_MEMORY_FAILURE=y
CONFIG_HWPOISON_INJECT=y
CONFIG_RCU_TORTURE_TEST=y
CONFIG_RCU_TORTURE_TEST_RUNNABLE=y
CONFIG_RCU_CPU_STALL_DETECTOR=y
CONFIG_PERF_EVENTS=y
CONFIG_EVENT_PROFILE=y
CONFIG_PERF_COUNTERS=y
CONFIG_IOSCHED_CFQ=y
CONFIG_GROUP_IOSCHED=y
CONFIG_MEMORY_HOTREMOVE=y
CONFIG_PAGE_MIGRATION=y
CONFIG_KSM=y
CONFIG_KEXEC=y
CONFIG_CRASH_DUMP=y
CONFIG_PHYSICAL_START=0x200000
CONFIG_RELOCATABLE=y
CONFIG_HOTPLUG_CPU=y
CONFIG_PM=y
CONFIG_SUSPEND=y
CONFIG_HIBERNATION=y
CONFIG_PM_RUNTIME=y
CONFIG_ACPI=y
CONFIG_ACPI_PROCFS_POWER=y
CONFIG_ACPI_POWER_METER=m
CONFIG_SYSFS_DEPRECATED_V2=y
CONFIG_IXGBE_DCB=y
CONFIG_DCB=y