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  1. Lustre
  2. LU-546

1.8<->2.1 interop: LBUG: ASSERTION(service->srv_n_queued_reqs == 0) failed

    Details

    • Severity:
      3
    • Rank (Obsolete):
      6574

      Description

      While running sanity-quota test 18b, unmounting the MDS hit the following LBUG on the MDS node:

      LustreError: 28451:0:(service.c:2704:ptlrpc_unregister_service()) LBUG
      Pid: 28451, comm: obd_zombid
      
      Call Trace:
      [<ffffffffa0427855>] libcfs_debug_dumpstack+0x55/0x80 [libcfs]
      [<ffffffffa0427e95>] lbug_with_loc+0x75/0xe0 [libcfs]
      [<ffffffffa0432cb6>] libcfs_assertion_failed+0x66/0x70 [libcfs]
      [<ffffffffa09efa03>] ptlrpc_unregister_service+0xb83/0xc20 [ptlrpc]
      [<ffffffff8105dc72>] ? default_wake_function+0x12/0x20
      [<ffffffff8104af29>] ? __wake_up_common+0x59/0x90
      [<ffffffff8104f843>] ? __wake_up+0x53/0x70
      [<ffffffffa0b9facc>] mgs_cleanup+0x4c/0x220 [mgs]
      [<ffffffffa088275a>] class_decref+0x19a/0x610 [obdclass]
      [<ffffffff810dbebe>] ? call_rcu+0xe/0x10
      [<ffffffffa0b9f32f>] ? mgs_destroy_export+0x3f/0x110 [mgs]
      [<ffffffffa086dac5>] obd_zombie_impexp_cull+0x335/0x5a0 [obdclass]
      [<ffffffff8108e51c>] ? remove_wait_queue+0x3c/0x50
      [<ffffffffa086de35>] obd_zombie_impexp_thread+0x105/0x270 [obdclass]
      [<ffffffff8105dc60>] ? default_wake_function+0x0/0x20
      [<ffffffff8100c1ca>] child_rip+0xa/0x20
      [<ffffffffa086dd30>] ? obd_zombie_impexp_thread+0x0/0x270 [obdclass]
      [<ffffffff8100c1c0>] ? child_rip+0x0/0x20
      
      Kernel panic - not syncing: LBUG
      Pid: 28451, comm: obd_zombid Tainted: G           ---------------- T 2.6.32-131.2.1.el6_lustre.x86_64 #1
      Call Trace:
      [<ffffffff814db1b8>] ? panic+0x78/0x143
      [<ffffffffa0427eeb>] ? lbug_with_loc+0xcb/0xe0 [libcfs]
      [<ffffffffa0432cb6>] ? libcfs_assertion_failed+0x66/0x70 [libcfs]
      [<ffffffffa09efa03>] ? ptlrpc_unregister_service+0xb83/0xc20 [ptlrpc]
      [<ffffffff8105dc72>] ? default_wake_function+0x12/0x20
      [<ffffffff8104af29>] ? __wake_up_common+0x59/0x90
      [<ffffffff8104f843>] ? __wake_up+0x53/0x70
      [<ffffffffa0b9facc>] ? mgs_cleanup+0x4c/0x220 [mgs]
      [<ffffffffa088275a>] ? class_decref+0x19a/0x610 [obdclass]
      [<ffffffff810dbebe>] ? call_rcu+0xe/0x10
      [<ffffffffa0b9f32f>] ? mgs_destroy_export+0x3f/0x110 [mgs]
      [<ffffffffa086dac5>] ? obd_zombie_impexp_cull+0x335/0x5a0 [obdclass]
      [<ffffffff8108e51c>] ? remove_wait_queue+0x3c/0x50
      [<ffffffffa086de35>] ? obd_zombie_impexp_thread+0x105/0x270 [obdclass]
      [<ffffffff8105dc60>] ? default_wake_function+0x0/0x20
      [<ffffffff8100c1ca>] ? child_rip+0xa/0x20
      [<ffffffffa086dd30>] ? obd_zombie_impexp_thread+0x0/0x270 [obdclass]
      [<ffffffff8100c1c0>] ? child_rip+0x0/0x20
      

      Maloo report: https://maloo.whamcloud.com/test_sets/b4fa75a0-b8db-11e0-8bdf-52540025f9af

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            • Assignee:
              rread Robert Read (Inactive)
              Reporter:
              yujian Jian Yu
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              Dates

              • Created:
                Updated:
                Resolved: