[LU-14457] racer test_1: crash with directory migration

• Type: Bug
• Resolution: Unresolved
• Priority: Minor
• Affects Version/s: Lustre 2.14.0
• Severity: 3
• Assignee: WC Triage
• Reporter: Maloo

Description

This issue was created by maloo for Andreas Dilger <[e-mail]>

This issue relates to the following test suite run: https://testing.whamcloud.com/test_sets/07632945-d143-4352-9ed9-297c98f1fdce

test_1 crashed after running for 3100s with the following error:

[ 3557.862509] LustreError: 31802:0:(lu_object.h:885:lu_object_attr()) ASSERTION( ((o)->lo_header->loh_attr & LOHA_EXISTS) != 0 ) failed: 
[ 3557.866245] LustreError: 31802:0:(lu_object.h:885:lu_object_attr()) LBUG
[ 3557.888908] Kernel panic - not syncing: LBUG
[ 3557.889650] CPU: 1 PID: 31802 Comm: mdt00_075 Kdump: loaded  3.10.0-1127.19.1.el7_lustre.x86_64 #1
[ 3557.891877] Hardware name: Red Hat KVM, BIOS 0.5.1 01/01/2011
[ 3557.892830] Call Trace:
[ 3557.893247]  [<ffffffffb877ffa5>] dump_stack+0x19/0x1b
[ 3557.894137]  [<ffffffffb8779541>] panic+0xe8/0x21f
[ 3557.894929]  [<ffffffffc097d9eb>] lbug_with_loc+0x9b/0xa0 [libcfs]
[ 3557.895951]  [<ffffffffc131e7a0>] lu_object_attr.isra.21.part.22+0x36/0x36 [mdt]
[ 3557.897156]  [<ffffffffc12e0bb3>] mdt_link_parents_lock.isra.53+0x14c3/0x15a0 [mdt]
[ 3557.898477]  [<ffffffffc145e19b>] ? __mdd_lookup.isra.17+0x28b/0x430 [mdd]
[ 3557.899810]  [<ffffffffc0bbe3e9>] ? lu_object_find+0x19/0x20 [obdclass]
[ 3557.900900]  [<ffffffffc12d565a>] ? mdt_migrate_lookup.isra.42+0x47a/0x870 [mdt]
[ 3557.902171]  [<ffffffffc12be2ca>] ? mdt_remote_object_lock+0x2a/0x30 [mdt]
[ 3557.903298]  [<ffffffffc12e1545>] mdt_reint_migrate+0x8b5/0xfb0 [mdt]
[ 3557.905607]  [<ffffffffc12e1cc3>] mdt_reint_rec+0x83/0x210 [mdt]
[ 3557.906597]  [<ffffffffc12b9a30>] mdt_reint_internal+0x720/0xaf0 [mdt]
[ 3557.907667]  [<ffffffffc12c55c7>] mdt_reint+0x67/0x140 [mdt]
[ 3557.908671]  [<ffffffffc0f136fa>] tgt_request_handle+0x7ea/0x1750 [ptlrpc]
[ 3557.911001]  [<ffffffffc0eb31a6>] ptlrpc_server_handle_request+0x256/0xb10 [ptlrpc]
[ 3557.912283]  [<ffffffffc0eb7cfc>] ptlrpc_main+0xb3c/0x14e0 [ptlrpc]
[ 3557.914543]  [<ffffffffb80c6691>] kthread+0xd1/0xe0

Since this is during racer, it is entirely possible that the source or target file was removed at the same time.

VVVVVVV DO NOT REMOVE LINES BELOW, Added by Maloo for auto-association VVVVVVV
racer test_1 - trevis-55vm4 crashed during racer test_1

Issue Links

• is related to: LU-7145 mdd_object_type() uses need audit
• is related to: LU-6963 racer test_1: lu_object_attr() ASSERTION(lo_header->loh_attr & LOHA_EXISTS) failed in rename