[LU-13161] racer test hung at unmounting /mnt/lustre2 Created: 21/Jan/20  Updated: 24/Sep/20

Status: Open
Project: Lustre
Component/s: None
Affects Version/s: Lustre 2.13.0
Fix Version/s: None

Type: Bug Priority: Minor
Reporter: Maloo Assignee: WC Triage
Resolution: Unresolved Votes: 0
Labels: rhel8
Environment:

RHEL 8.1 client + RHEL 7.7 server


Severity: 3
Rank (Obsolete): 9223372036854775807

 Description   

This issue was created by maloo for jianyu <yujian@whamcloud.com>

This issue relates to the following test suite run: https://testing.whamcloud.com/test_sets/fc82e03a-3ba7-11ea-bb75-52540065bddc

Console log on one client:

[ 3887.007553] kworker/1:0     D    0 11550      2 0x80000080
[ 3887.008542] Workqueue: events key_garbage_collector
[ 3887.009418] Call Trace:
[ 3887.009891]  ? __schedule+0x253/0x830
[ 3887.010578]  ? pcpu_next_unpop+0x37/0x50
[ 3887.011308]  schedule+0x28/0x70
[ 3887.011889]  schedule_timeout+0x26d/0x390
[ 3887.012626]  ? _cond_resched+0x15/0x30
[ 3887.013326]  ? cpumask_next+0x17/0x20
[ 3887.013998]  ? __switch_to_asm+0x41/0x70
[ 3887.014725]  wait_for_completion+0x11f/0x190
[ 3887.015504]  ? wake_up_q+0x70/0x70
[ 3887.016136]  __wait_rcu_gp+0x12c/0x160
[ 3887.016832]  synchronize_rcu+0x76/0x80
[ 3887.017544]  ? __call_rcu+0x290/0x290
[ 3887.018216]  ? __bpf_trace_rcu_utilization+0x10/0x10
[ 3887.019113]  key_garbage_collector+0x1d7/0x3e0
[ 3887.019933]  process_one_work+0x1a7/0x3b0
[ 3887.020675]  worker_thread+0x1fa/0x390
[ 3887.021379]  ? create_worker+0x1a0/0x1a0
[ 3887.022093]  kthread+0x112/0x130
[ 3887.022704]  ? kthread_flush_work_fn+0x10/0x10
[ 3887.023511]  ret_from_fork+0x35/0x40

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