[LU-3892] osp_sync.c:356:osp_sync_interpret()) ASSERTION( req->rq_transno == 0 ) failed

• Type: Bug
• Resolution: Fixed
• Priority: Blocker
• Fix Version/s: Lustre 2.5.0, Lustre 2.4.2
• Affects Version/s: Lustre 2.5.0
• Assignee: Alex Zhuravlev
• Reporter: Oleg Drokin

Description

I started to hit this recently running sanity in a loop, in different tests, same crash every time:

<0>[20903.330989] LustreError: 9397:0:(osp_sync.c:356:osp_sync_interpret()) ASSERTION( req->rq_transno == 0 ) failed: 
<0>[20903.331969] LustreError: 9397:0:(osp_sync.c:356:osp_sync_interpret()) LBUG
<4>[20903.332470] Pid: 9397, comm: ptlrpcd_2
<4>[20903.332898] 
<4>[20903.332899] Call Trace:
<4>[20903.333610]  [<ffffffffa0ac78a5>] libcfs_debug_dumpstack+0x55/0x80 [libcfs]
<4>[20903.334192]  [<ffffffffa0ac7ea7>] lbug_with_loc+0x47/0xb0 [libcfs]
<4>[20903.334705]  [<ffffffffa07f1092>] osp_sync_interpret+0x492/0x500 [osp]
<4>[20903.335252]  [<ffffffffa127b2aa>] ptlrpc_check_set+0x2ca/0x1da0 [ptlrpc]
<4>[20903.335824]  [<ffffffffa12a700b>] ptlrpcd_check+0x55b/0x590 [ptlrpc]
<4>[20903.336580]  [<ffffffffa12a7553>] ptlrpcd+0x233/0x390 [ptlrpc]
<4>[20903.337121]  [<ffffffff8105ad10>] ? default_wake_function+0x0/0x20
<4>[20903.337649]  [<ffffffffa12a7320>] ? ptlrpcd+0x0/0x390 [ptlrpc]
<4>[20903.338147]  [<ffffffff81094606>] kthread+0x96/0xa0
<4>[20903.343428]  [<ffffffff8100c10a>] child_rip+0xa/0x20
<4>[20903.343939]  [<ffffffff81094570>] ? kthread+0x0/0xa0
<4>[20903.344452]  [<ffffffff8100c100>] ? child_rip+0x0/0x20
<4>[20903.345028] 
<0>[20903.348400] Kernel panic - not syncing: LBUG

Crash and modules: /exports/crashdumps/192.168.10.219-2013-09-05-20\:55\:33/
other crashes like this: /exports/crashdumps/192.168.10.224-2013-09-05-19:19:15 /exports/crashdumps/192.168.10.219-2013-09-05-15\:06\:22
source tag in my tree: master-20130905

Issue Links

• is related to: LU-5629 osp_sync_interpret() ASSERTION( rc || req->rq_transno ) failed