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  1. Lustre
  2. LU-10621

sanity-flr test 31 LBUG on OST umount with “ASSERTION( atomic_read(&d->ld_ref) == 0 ) failed:”

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Details

    • Bug
    • Resolution: Unresolved
    • Minor
    • None
    • Lustre 2.11.0
    • None
    • 3
    • 9223372036854775807

    Description

      sanity-flr test_31 has only hung once; https://testing.hpdd.intel.com/test_sets/ececb25a-06d3-11e8-a10a-52540065bddc. From this test session, the last thing we see in the test_log is

      == sanity-flr test 31: make sure glimpse request can be retried ====================================== 20:48:28 (1517431708)
      fail_loc=0x1A00
      CMD: trevis-41vm3 grep -c /mnt/lustre-ost1' ' /proc/mounts
      Stopping /mnt/lustre-ost1 (opts:) on trevis-41vm3
      CMD: trevis-41vm3 umount -d /mnt/lustre-ost1
      

      Looking at the console log of the OSTs (vm3), we see:

       [ 5669.616463] Lustre: DEBUG MARKER: == sanity-flr test 31: make sure glimpse request can be retried ====================================== 20:48:28 (1517431708)
      [ 5669.797671] Lustre: DEBUG MARKER: grep -c /mnt/lustre-ost1' ' /proc/mounts
      [ 5670.115051] Lustre: DEBUG MARKER: umount -d /mnt/lustre-ost1
      [ 5670.280194] Lustre: Failing over lustre-OST0000
      [ 5670.306388] LustreError: 1200:0:(ofd_dev.c:250:ofd_stack_fini()) header@ffff88005c2d0960[0x1, 1, [0x100000000:0xccf:0x0] hash exist]{
      [ 5670.306388] 
      [ 5670.311566] LustreError: 1200:0:(ofd_dev.c:250:ofd_stack_fini()) ....obdfilter@ffff88005c2d09b0obdfilter-object@ffff88005c2d09b0
      [ 5670.311566] 
      [ 5670.316596] LustreError: 1200:0:(ofd_dev.c:250:ofd_stack_fini()) ....osd-zfs@ffff88005530b270osd-zfs-object@ffff88005530b270
      [ 5670.316596] 
      [ 5670.320351] LustreError: 1200:0:(ofd_dev.c:250:ofd_stack_fini()) } header@ffff88005c2d0960
      [ 5670.320351] 
      [ 5670.324164] LustreError: 1200:0:(ofd_dev.c:3057:ofd_fini()) ASSERTION( atomic_read(&d->ld_ref) == 0 ) failed: 
      [ 5670.326440] LustreError: 1200:0:(ofd_dev.c:3057:ofd_fini()) LBUG
      [ 5670.328461] Pid: 1200, comm: umount
      [ 5670.330250] 
      [ 5670.330250] Call Trace:
      [ 5670.333500]  [<ffffffffc067d7ae>] libcfs_call_trace+0x4e/0x60 [libcfs]
      [ 5670.335432]  [<ffffffffc067d83c>] lbug_with_loc+0x4c/0xb0 [libcfs]
      [ 5670.337340]  [<ffffffffc11bae63>] ofd_device_fini+0x2c3/0x2d0 [ofd]
      [ 5670.339235]  [<ffffffffc0c8008c>] class_cleanup+0x8cc/0xc40 [obdclass]
      [ 5670.341180]  [<ffffffffc0c810ac>] class_process_config+0x62c/0x28a0 [obdclass]
      [ 5670.343119]  [<ffffffffc0688d47>] ? libcfs_debug_msg+0x57/0x80 [libcfs]
      [ 5670.345063]  [<ffffffffc0c834e6>] class_manual_cleanup+0x1c6/0x710 [obdclass]
      [ 5670.347013]  [<ffffffffc0cb30ce>] server_put_super+0x8de/0xcd0 [obdclass]
      [ 5670.348965]  [<ffffffff812054d2>] generic_shutdown_super+0x72/0x100
      [ 5670.350875]  [<ffffffff812058a2>] kill_anon_super+0x12/0x20
      [ 5670.352772]  [<ffffffffc0c85f32>] lustre_kill_super+0x32/0x50 [obdclass]
      [ 5670.354721]  [<ffffffff81205c59>] deactivate_locked_super+0x49/0x60
      [ 5670.356674]  [<ffffffff812063c6>] deactivate_super+0x46/0x60
      [ 5670.358685]  [<ffffffff8122376f>] cleanup_mnt+0x3f/0x80
      [ 5670.360727]  [<ffffffff81223802>] __cleanup_mnt+0x12/0x20
      [ 5670.362669]  [<ffffffff810aee05>] task_work_run+0xc5/0xf0
      [ 5670.364564]  [<ffffffff8102ab52>] do_notify_resume+0x92/0xb0
      [ 5670.366471]  [<ffffffff816b8d37>] int_signal+0x12/0x17
      [ 5670.368362] 
      [ 5670.369916] Kernel panic - not syncing: LBUG
      [ 5670.370906] CPU: 1 PID: 1200 Comm: umount Tainted: P           OE  ------------   3.10.0-693.11.6.el7_lustre.x86_64 #1
      [ 5670.370906] Hardware name: Red Hat KVM, BIOS 0.5.1 01/01/2007
      

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            jamesanunez James Nunez (Inactive)
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              Created:
              Updated: