[LU-19486] ASSERTION( list_empty(&lad->lad_mdt_phase2_list)

• Type: Bug
• Resolution: Fixed
• Priority: Medium
• Fix Version/s: Lustre 2.17.0
• Severity: 3
• Assignee: Lai Siyao
• Reporter: Alex Zhuravlev

Description

[ 1167.675993] Lustre: DEBUG MARKER: == sanity-lfsck test 27a: LFSCK can recreate the lost local parent directory as orphan ========================================================== 23:51:38 (1760658698)
[ 1167.805099] LustreError: 58422:0:(lfsck_namespace.c:4986:lfsck_namespace_double_scan()) ASSERTION( list_empty(&lad->lad_mdt_phase2_list) ) failed: 
[ 1167.805313] LustreError: 58422:0:(lfsck_namespace.c:4986:lfsck_namespace_double_scan()) LBUG
[ 1167.805477] CPU: 1 PID: 58422 Comm: lfsck Tainted: G        W  O      -------- -  - 4.18.0 #2
[ 1167.805639] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.17.0-4.fc41 04/01/2014
[ 1167.805676] Call Trace:
[ 1167.805707]  dump_stack+0x6e/0xa0
[ 1167.805838]  lbug_with_loc.cold.3+0x5/0x4e [libcfs]
[ 1167.806198]  lfsck_namespace_double_scan+0xb8/0xf0 [lfsck]
[ 1167.806349]  lfsck_double_scan+0x3e/0x1b0 [lfsck]
[ 1167.806465]  ? ___cache_free+0x1c/0x1f0
[ 1167.806511]  ? trace_hardirqs_on+0x1c/0xe0
[ 1167.806644]  lfsck_master_engine+0x4dc/0x13e0 [lfsck]
[ 1167.806802]  ? _raw_spin_unlock_irqrestore+0x34/0x70
[ 1167.806832]  ? _raw_spin_unlock_irqrestore+0x43/0x70
[ 1167.806857]  ? lfsck_master_oit_engine+0x21a0/0x21a0 [lfsck]
[ 1167.806958]  kthread+0x16e/0x1a0
[ 1167.807239]  ? set_kthread_struct+0x40/0x40
[ 1167.807268]  ret_from_fork+0x24/0x30

bistected to:
2b5df830d4 LU-19370 lfsck: don't use ptlrpc_thread for LFSCK

Issue Links

• is related to: LU-19499 sanity-lfsck test_44: ASSERTION( dev->od_otable_it == ((void *)0) ) failed
• is related to: LU-19370 lfsck thread may not quit after lfsck_stop()