Crash occurred in module dtrep: unable to handle kernel paging request

Solution Verified - Updated -

Issue

  • Crashed in context of third party module dtrep RIP: [] memcpy+0x6/0x110
crash> bt 
PID: 11834  TASK: ffff88081da4eeb0  CPU: 2   COMMAND: "amqzmuc0"
 #0 [ffff8800361c36d0] machine_kexec at ffffffff8105c52b
 #1 [ffff8800361c3730] __crash_kexec at ffffffff81104a42
 #2 [ffff8800361c3800] crash_kexec at ffffffff81104b30
 #3 [ffff8800361c3818] oops_end at ffffffff816ad338
 #4 [ffff8800361c3840] no_context at ffffffff8169d36a
 #5 [ffff8800361c3890] __bad_area_nosemaphore at ffffffff8169d400
 #6 [ffff8800361c38d8] bad_area_nosemaphore at ffffffff8169d56a
 #7 [ffff8800361c38e8] __do_page_fault at ffffffff816b01fe
 #8 [ffff8800361c3948] trace_do_page_fault at ffffffff816b0456
 #9 [ffff8800361c3988] do_async_page_fault at ffffffff816afaea
#10 [ffff8800361c39a0] async_page_fault at ffffffff816ac5f8
    [exception RIP: memcpy+0x6]
    RIP: ffffffff813315a6  RSP: ffff8800361c3a50  RFLAGS: 00010246
    RAX: ffff8807ba338000  RBX: 0000000000000000  RCX: 0000000000001000
    RDX: 0000000000001000  RSI: 00002b1935a53000  RDI: ffff8807ba338000
    RBP: ffff8800361c3aa8   R8: 0000000000019cc0   R9: ffffffffc067b02b
    R10: ffff88017fc01300  R11: 0000000000001000  R12: 0000000000001000
    R13: 00002b1935a53000  R14: ffff8807ba338000  R15: 0000000000002000
    ORIG_RAX: ffffffffffffffff  CS: 0010  SS: 0018
#11 [ffff8800361c3a50] QueueItemSetDataBlocks at ffffffffc067c040 [dtrep]  < 
#12 [ffff8800361c3ab0] QueueItemSetData at ffffffffc067c340 [dtrep]
#13 [ffff8800361c3ae8] dtrep_direct_write at ffffffffc067e9ab [dtrep]
#14 [ffff8800361c3b60] addrDirectIOHook at ffffffffc066970a [dtfilter]
#15 [ffff8800361c3bc8] generic_file_direct_write at ffffffff8118465d
#16 [ffff8800361c3c20] __generic_file_aio_write at ffffffff81184957
#17 [ffff8800361c3ca0] ext4_file_write at ffffffffc0541035 [ext4]
#18 [ffff8800361c3d58] do_sync_readv_writev at ffffffff81200129
#19 [ffff8800361c3e30] do_readv_writev at ffffffff81201d0e
#20 [ffff8800361c3f28] vfs_writev at ffffffff81201f35
#21 [ffff8800361c3f38] sys_writev at ffffffff812020ef
#22 [ffff8800361c3f80] system_call_fastpath at ffffffff816b5089
    RIP: 00002b1919bb2230  RSP: 00002b191860a860  RFLAGS: 00010202
    RAX: 0000000000000014  RBX: ffffffff816b5089  RCX: 0000000001ad6e80
    RDX: 0000000000000002  RSI: 00002b191860a920  RDI: 0000000000000007
    RBP: 00002b191860a920   R8: 0000000000000000   R9: 0000000000000003
    R10: 00002b191860a1a0  R11: 0000000000000293  R12: 0000000000003000
    R13: 0000000001ad5900  R14: 0000000000003000  R15: 0000000000000002
    ORIG_RAX: 0000000000000014  CS: 0033  SS: 002b
crash

Environment

  • RHEL 7.4
    • 3.10.0-693.11.1.el7.x86_64
  • Third party modules - dtrep, dtfilter, dtcommon, dtloop

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