[LU-2726] lprocfs_counter_sub()) ASSERTION( (!((stats->ls_flags & LPROCFS_STATS_FLAG_IRQ_SAFE) == 0) || (!(((current_thread_info()->preempt_count) &... ) failed

• Type: Bug
• Resolution: Fixed
• Priority: Blocker
• Fix Version/s: Lustre 2.4.0
• Affects Version/s: Lustre 2.4.0
• Labels: HB
• Severity: 3
• Assignee: Zhenyu Xu
• Reporter: Oleg Drokin

Description

Probably caused by landing of http://review.whamcloud.com/3246 I now get this crash:

[ 5006.818563] LustreError: 138-a: lustre-OST0001: A client on nid 0@lo was evicted due to a lock blocking callback time out: rc -107
[ 5006.820054] LustreError: Skipped 1 previous similar message
[ 5006.820979] LustreError: 3302:0:(lvfs_lib.c:131:lprocfs_counter_sub()) ASSERTION( (!((stats->ls_flags & LPROCFS_STATS_FLAG_IRQ_SAFE) == 0) || (!(((current_thread_info()->preempt_count) & ((((1UL << (10))-1) << ((0 + 8) + 8)) | (((1UL << (8))-1) << (0 + 8)) | (((1UL << (1))-1) << (((0 + 8) + 8) + 10))))))) ) failed: 
[ 5006.822543] LustreError: 3302:0:(lvfs_lib.c:131:lprocfs_counter_sub()) LBUG
[ 5006.822805] Kernel panic - not syncing: LBUG in interrupt.
[ 5006.822806] 
[ 5006.823205] Pid: 3302, comm: ldlm_elt Not tainted 2.6.32-debug #6
[ 5006.823447] Call Trace:
[ 5006.823635]  [<ffffffff814f75e4>] ? panic+0xa0/0x168
[ 5006.823872]  [<ffffffffa0449f5d>] ? lbug_with_loc+0x8d/0xb0 [libcfs]
[ 5006.824123]  [<ffffffffa05a3027>] ? lprocfs_counter_sub+0x177/0x190 [lvfs]
[ 5006.824403]  [<ffffffffa07414ff>] ? ldlm_lock_put+0xcf/0x540 [ptlrpc]
[ 5006.824698]  [<ffffffffa0767fe0>] ? expired_lock_main+0x660/0x830 [ptlrpc]
[ 5006.825038]  [<ffffffff81057d60>] ? default_wake_function+0x0/0x20
[ 5006.825301]  [<ffffffffa0767980>] ? expired_lock_main+0x0/0x830 [ptlrpc]
[ 5006.825555]  [<ffffffff8100c14a>] ? child_rip+0xa/0x20
[ 5006.825802]  [<ffffffffa0767980>] ? expired_lock_main+0x0/0x830 [ptlrpc]
[ 5006.826071]  [<ffffffffa0767980>] ? expired_lock_main+0x0/0x830 [ptlrpc]
[ 5006.826325]  [<ffffffff8100c140>] ? child_rip+0x0/0x20

I have a crashdump in /exports/crashdumps/192.168.10.223-2013-01-31-14\:11\:49/vmcore