[LU-4874] (osc_lock.c:240:osc_lock_fini()) ASSERTION( ols->ols_lock == ((void *)0) )

• Type: Bug
• Resolution: Fixed
• Priority: Minor
• Affects Version/s: Lustre 2.4.1
• Severity: 3
• Assignee: Zhenyu Xu
• Reporter: Daire Byrne (Inactive)

Description

One of our Lustre clients died with this LBUG. The client exports over NFS and was also doing some large file copies and deletes at the time. I have not seen this LBUG before and couldn't find anything similar in JIRA. kdump vmcore available on request.

<0>LustreError: 2778:0:(osc_lock.c:240:osc_lock_fini()) ASSERTION( ols->ols_lock == ((void *)0) ) failed:
<0>LustreError: 2778:0:(osc_lock.c:240:osc_lock_fini()) LBUG
<4>Pid: 2778, comm: ptlrpcd_8
<4>
<4>Call Trace:
<4> [<ffffffffa03ab895>] libcfs_debug_dumpstack+0x55/0x80 [libcfs]
<4> [<ffffffffa03abe97>] lbug_with_loc+0x47/0xb0 [libcfs]
<4> [<ffffffffa090cfce>] osc_lock_fini+0x18e/0x190 [osc]
<4> [<ffffffffa0532553>] cl_lock_put+0x223/0x430 [obdclass]
<4> [<ffffffffa090fefc>] osc_lock_upcall+0x19c/0x5e0 [osc]
<4> [<ffffffffa090fd60>] ? osc_lock_upcall+0x0/0x5e0 [osc]
<4> [<ffffffffa08f0876>] osc_enqueue_fini+0x106/0x240 [osc]
<4> [<ffffffffa08f52d2>] osc_enqueue_interpret+0xe2/0x1e0 [osc]
<4> [<ffffffffa069cedc>] ptlrpc_check_set+0x2ac/0x1b20 [ptlrpc]
<4> [<ffffffffa06ca69b>] ptlrpcd_check+0x53b/0x560 [ptlrpc]
<4> [<ffffffffa06cabc3>] ptlrpcd+0x233/0x390 [ptlrpc]
<4> [<ffffffff81063410>] ? default_wake_function+0x0/0x20
<4> [<ffffffffa06ca990>] ? ptlrpcd+0x0/0x390 [ptlrpc]
<4> [<ffffffff8100c0ca>] child_rip+0xa/0x20
<4> [<ffffffffa06ca990>] ? ptlrpcd+0x0/0x390 [ptlrpc]
<4> [<ffffffffa06ca990>] ? ptlrpcd+0x0/0x390 [ptlrpc]
<4> [<ffffffff8100c0c0>] ? child_rip+0x0/0x20
<4>
<0>Kernel panic - not syncing: LBUG
<4>Pid: 2778, comm: ptlrpcd_8 Not tainted 2.6.32-358.18.1.el6_lustre.x86_64 #1
<4>Call Trace:
<4> [<ffffffff8150de58>] ? panic+0xa7/0x16f
<4> [<ffffffffa03abeeb>] ? lbug_with_loc+0x9b/0xb0 [libcfs]
<4> [<ffffffffa090cfce>] ? osc_lock_fini+0x18e/0x190 [osc]
<4> [<ffffffffa0532553>] ? cl_lock_put+0x223/0x430 [obdclass]
<4> [<ffffffffa090fefc>] ? osc_lock_upcall+0x19c/0x5e0 [osc]
<4> [<ffffffffa090fd60>] ? osc_lock_upcall+0x0/0x5e0 [osc]
<4> [<ffffffffa08f0876>] ? osc_enqueue_fini+0x106/0x240 [osc]
<4> [<ffffffffa08f52d2>] ? osc_enqueue_interpret+0xe2/0x1e0 [osc]
<4> [<ffffffffa069cedc>] ? ptlrpc_check_set+0x2ac/0x1b20 [ptlrpc]
<4> [<ffffffffa06ca69b>] ? ptlrpcd_check+0x53b/0x560 [ptlrpc]
<4> [<ffffffffa06cabc3>] ? ptlrpcd+0x233/0x390 [ptlrpc]
<4> [<ffffffff81063410>] ? default_wake_function+0x0/0x20
<4> [<ffffffffa06ca990>] ? ptlrpcd+0x0/0x390 [ptlrpc]
<4> [<ffffffff8100c0ca>] ? child_rip+0xa/0x20
<4> [<ffffffffa06ca990>] ? ptlrpcd+0x0/0x390 [ptlrpc]
<4> [<ffffffffa06ca990>] ? ptlrpcd+0x0/0x390 [ptlrpc]
<4> [<ffffffff8100c0c0>] ? child_rip+0x0/0x20

Issue Links

• duplicates: LU-4558 Crash in cl_lock_put on racer