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

Related — Thu, 9 Sep 2021 21:15:48 +0000

This issue was created by maloo for Andreas Dilger <adilger@whamcloud.com>

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

Whamcloud Community JIRA

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