[LU-2581] ll_direct_IO_26()) ASSERTION( obj->cob_transient_pages == 0 ) failed

• Type: Bug
• Resolution: Duplicate
• Priority: Critical
• Affects Version/s: Lustre 2.4.0
• Severity: 3
• Assignee: WC Triage
• Reporter: Oleg Drokin

Description

Hit this while running sanityn in a loop

[15230.955041] Lustre: DEBUG MARKER: == sanityn test 18: mmap sanity check =================================== 03:31:24 (1357547484)
[15233.259261] LustreError: 10620:0:(rw26.c:484:ll_direct_IO_26()) ASSERTION( obj->cob_transient_pages == 0 ) failed: 
[15233.259772] LustreError: 10620:0:(rw26.c:484:ll_direct_IO_26()) LBUG
[15233.260045] Pid: 10620, comm: mmap_sanity
[15233.260268] 
[15233.260268] Call Trace:
[15233.260669]  [<ffffffffa0417915>] libcfs_debug_dumpstack+0x55/0x80 [libcfs]
[15233.260867]  [<ffffffffa0417f27>] lbug_with_loc+0x47/0xb0 [libcfs]
[15233.261087]  [<ffffffffa0f98a99>] ll_direct_IO_26+0xe49/0x14c0 [lustre]
[15233.261307]  [<ffffffff81112fc5>] generic_file_direct_write+0xc5/0x190
[15233.261554]  [<ffffffff811148d5>] __generic_file_aio_write+0x345/0x480
[15233.261815]  [<ffffffff81114a7f>] generic_file_aio_write+0x6f/0xe0
[15233.261998]  [<ffffffffa0faab5c>] vvp_io_write_start+0x9c/0x240 [lustre]
[15233.262196]  [<ffffffffa05c763a>] cl_io_start+0x6a/0x140 [obdclass]
[15233.262389]  [<ffffffffa05cbe14>] cl_io_loop+0xb4/0x1b0 [obdclass]
[15233.262641]  [<ffffffffa0f573fb>] ll_file_io_generic+0x42b/0x550 [lustre]
[15233.262903]  [<ffffffffa0f587d2>] ll_file_aio_write+0x142/0x2c0 [lustre]
[15233.263182]  [<ffffffffa0f58abc>] ll_file_write+0x16c/0x2a0 [lustre]
[15233.263455]  [<ffffffff8117b2e8>] vfs_write+0xb8/0x1a0
[15233.263698]  [<ffffffff8117bbb1>] sys_write+0x51/0x90
[15233.263963]  [<ffffffff8100b0f2>] system_call_fastpath+0x16/0x1b
[15233.264230] 
[15233.268118] Kernel panic - not syncing: LBUG

Crashdump and modules are in /exports/crashdumps/192.168.10.211-2013-01-07-03:31:29/

Issue Links

• duplicates: LU-2722 LustreError: 30217:0:(rw26.c:485:ll_direct_IO_26()) ASSERTION( obj->cob_transient_pages == 0 ) failed: