[LU-8578] ptlrpcd threads hung waiting for cl_lock held by osc_extent_wait() process

• Type: Bug
• Resolution: Fixed
• Priority: Minor
• Fix Version/s: Lustre 2.11.0, Lustre 2.10.2
• Severity: 3
• Assignee: WC Triage
• Reporter: Andriy Skulysh

Description

[ffff885a87401258] schedule at ffffffff814625fb
> #1 [ffff885a874013a0] osc_extent_wait at ffffffffa0e04687 [osc]
> #2 [ffff885a874014c0] osc_cache_wait_range at ffffffffa0e04e22 [osc]
> #3 [ffff885a874015f0] osc_cache_writeback_range at ffffffffa0e05ea5 [osc]
> #4 [ffff885a874017a0] osc_lock_flush at ffffffffa0dee92d [osc]
> #5 [ffff885a874017f0] osc_lock_cancel at ffffffffa0deec19 [osc]
> #6 [ffff885a87401830] cl_lock_cancel0 at ffffffffa0a9dbc5 [obdclass]
> #7 [ffff885a87401850] cl_lock_cancel at ffffffffa0a9e93b [obdclass]
> #8 [ffff885a87401870] osc_lock_blocking at ffffffffa0def4fd [osc]
> #9 [ffff885a874018a0] osc_dlm_blocking_ast0 at ffffffffa0df08e9 [osc]
> #10 [ffff885a874018e0] osc_ldlm_blocking_ast at ffffffffa0df0a4c [osc]
> #11 [ffff885a87401920] ldlm_cancel_callback at ffffffffa0c52faf [ptlrpc]
> #12 [ffff885a87401930] ldlm_cli_cancel_local at ffffffffa0c6260f [ptlrpc]
> #13 [ffff885a87401950] ldlm_cli_cancel_list_local at ffffffffa0c65992 [ptlrpc]
> #14 [ffff885a874019b0] ldlm_prep_elc_req at ffffffffa0c6779f [ptlrpc]
> #15 [ffff885a87401a20] ldlm_prep_enqueue_req at ffffffffa0c6786f [ptlrpc]
> #16 [ffff885a87401a30] osc_enqueue_base at ffffffffa0dd52a4 [osc]
> #17 [ffff885a87401ac0] osc_lock_enqueue at ffffffffa0defde0 [osc]
> #18 [ffff885a87401b30] cl_enqueue_kick at ffffffffa0a9f0d2 [obdclass]
> #19 [ffff885a87401b60] cl_enqueue_try at ffffffffa0aa2321 [obdclass]
> #20 [ffff885a87401b90] lov_lock_enqueue_one at ffffffffa0e86cad [lov]
> #21 [ffff885a87401bc0] lov_lock_enqueue at ffffffffa0e89e9b [lov]
> #22 [ffff885a87401c30] cl_enqueue_kick at ffffffffa0a9f0d2 [obdclass]
> #23 [ffff885a87401c60] cl_enqueue_try at ffffffffa0aa2321 [obdclass]
> #24 [ffff885a87401c90] cl_enqueue_locked at ffffffffa0aa2c07 [obdclass]
> #25 [ffff885a87401cc0] cl_lock_request at ffffffffa0aa38d9 [obdclass]
> #26 [ffff885a87401d10] cl_glimpse_lock at ffffffffa0f5f0fd [lustre]
> #27 [ffff885a87401d70] cl_glimpse_size0 at ffffffffa0f5f5bf [lustre]
> #28 [ffff885a87401dc0] ll_glimpse_size at ffffffffa0f07f25 [lustre]
> #29 [ffff885a87401de0] ll_inode_revalidate_it at ffffffffa0f1aad5 [lustre]
> #30 [ffff885a87401e10] ll_getattr_it at ffffffffa0f1ab1e [lustre]
> #31 [ffff885a87401e40] ll_getattr at ffffffffa0f1ac6f [lustre]
> #32 [ffff885a87401ea0] vfs_fstatat at ffffffff81161f27