[LU-2556] osp_sync_interpret()) ASSERTION( d->opd_syn_rpc_in_progress > 0 ) failed

• Type: Bug
• Resolution: Fixed
• Priority: Blocker
• Fix Version/s: Lustre 2.4.0
• Affects Version/s: Lustre 2.4.0
• Labels: MB
• Severity: 3
• Assignee: Alex Zhuravlev
• Reporter: Oleg Drokin

Description

Hit this while running recovery-small (test 29b) in a loop:

[386997.184707] Lustre: Failing over lustre-MDT0000
[386997.191570] LustreError: 11-0: an error occurred while communicating with 0@lo. The mds_close operation failed with -19
[386997.192109] LustreError: Skipped 15 previous similar messages
[386997.502568] LustreError: 31761:0:(osp_sync.c:393:osp_sync_interpret()) ASSERTION( d->opd_syn_rpc_in_progress > 0 ) failed: 
[386997.503167] LustreError: 31761:0:(osp_sync.c:393:osp_sync_interpret()) LBUG
[386997.503450] Pid: 31761, comm: ptlrpcd_0
[386997.503663] 
[386997.503664] Call Trace:
[386997.504041]  [<ffffffffa0aea915>] libcfs_debug_dumpstack+0x55/0x80 [libcfs]
[386997.504325]  [<ffffffffa0aeaf27>] lbug_with_loc+0x47/0xb0 [libcfs]
[386997.504595]  [<ffffffffa09870f8>] osp_sync_interpret+0x4a8/0x560 [osp]
[386997.504915]  [<ffffffffa11ffc16>] ptlrpc_check_set+0x2b6/0x1db0 [ptlrpc]
[386997.505238]  [<ffffffffa1231b6b>] ptlrpcd_check+0x55b/0x590 [ptlrpc]
[386997.505538]  [<ffffffffa12320bb>] ptlrpcd+0x22b/0x3a0 [ptlrpc]
[386997.505809]  [<ffffffff81057d60>] ? default_wake_function+0x0/0x20
[386997.506099]  [<ffffffffa1231e90>] ? ptlrpcd+0x0/0x3a0 [ptlrpc]
[386997.506364]  [<ffffffff8100c14a>] child_rip+0xa/0x20
[386997.506635]  [<ffffffffa1231e90>] ? ptlrpcd+0x0/0x3a0 [ptlrpc]
[386997.506921]  [<ffffffffa1231e90>] ? ptlrpcd+0x0/0x3a0 [ptlrpc]
[386997.507185]  [<ffffffff8100c140>] ? child_rip+0x0/0x20
[386997.507433] 
[386997.511844] Kernel panic - not syncing: LBUG

Crashdump is in /exports/crashdumps/192.168.10.217-2012-12-31-11\:44\:36/