Kernel panics in _ZNK8OpenFile28copyDataToPrevSnapshotNeededEjxx [mmfs26] with the error "BUG: unable to handle kernel paging request"
Issue
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Kernel panics in _ZNK8OpenFile28copyDataToPrevSnapshotNeededEjxx [mmfs26] with the error "BUG: unable to handle kernel paging request"
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Backtrace of panic task:
PID: 25376 TASK: ffff88017714d4c0 CPU: 2 COMMAND: "nfsd"
#0 [ffff8801392c8e50] machine_kexec at ffffffff8103214b
#1 [ffff8801392c8eb0] crash_kexec at ffffffff810b91c2
#2 [ffff8801392c8f80] oops_end at ffffffff814f0cb0
#3 [ffff8801392c8fb0] no_context at ffffffff810423fb
#4 [ffff8801392c9000] __bad_area_nosemaphore at ffffffff81042685
#5 [ffff8801392c9050] bad_area_nosemaphore at ffffffff81042753
#6 [ffff8801392c9060] __do_page_fault at ffffffff81042e0d
#7 [ffff8801392c9180] do_page_fault at ffffffff814f2c8e
#8 [ffff8801392c91b0] page_fault at ffffffff814f0045
[exception RIP: _ZNK8OpenFile28copyDataToPrevSnapshotNeededEjxx+692]
RIP: ffffffffa08024a4 RSP: ffff8801392c9260 RFLAGS: 00010206
RAX: 0000000000000059 RBX: 0000000000000000 RCX: 000000000000002a
RDX: 0000040000000000 RSI: 0000000000000059 RDI: ffffc9007d16fa80
RBP: 0000000000001655 R8: ffffc9004630ff28 R9: 0000000000000059
R10: 0000000000001655 R11: 0000000000000015 R12: ffffc9006c186148
R13: 00000000000056e8 R14: 0000000000001655 R15: 0000000000001655
ORIG_RAX: ffffffffffffffff CS: 0010 SS: 0018
#9 [ffff8801392c92c8] _Z9gpfsWriteP13gpfsVfsData_tP15KernelOperationP9cxiNode_tiP8cxiUio_tP9MMFSVInfoP10cxiVattr_tSA_P10ext_cred_tPvi at ffffffffa079f343 [mmfs26]
#10 [ffff8801392c9758] rdwrInternal at ffffffffa048a8ca [mmfslinux]
#11 [ffff8801392c98d8] gpfs_f_aio_write at ffffffffa0493a2c [mmfslinux]
#12 [ffff8801392c9a18] do_sync_readv_writev at ffffffff811765fb
#13 [ffff8801392c9b48] do_readv_writev at ffffffff8117768f
#14 [ffff8801392c9c28] vfs_writev at ffffffff811777f6
#15 [ffff8801392c9c38] nfsd_vfs_write at ffffffffa06963d5 [nfsd]
#16 [ffff8801392c9d08] nfsd_write at ffffffffa0698ed7 [nfsd]
#17 [ffff8801392c9d68] nfsd3_proc_write at ffffffffa06a07ef [nfsd]
#18 [ffff8801392c9dd8] nfsd_dispatch at ffffffffa069143e [nfsd]
#19 [ffff8801392c9e18] svc_process_common at ffffffffa0329534 [sunrpc]
#20 [ffff8801392c9e98] svc_process at ffffffffa0329b70 [sunrpc]
#21 [ffff8801392c9eb8] nfsd at ffffffffa0691b62 [nfsd]
#22 [ffff8801392c9ee8] kthread at ffffffff810909c6
#23 [ffff8801392c9f48] kernel_thread at ffffffff8100c14a
Environment
- Red Hat Enterprise Linux 6 - kernel-2.6.32-220.23.1.el6.x86_64
- IBM mmfslinux/mmfs26
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