[LU-17983] LBUG: in mdt_fix_reply() hit during FOFB testing

• Type: Bug
• Resolution: Fixed
• Priority: Minor
• Fix Version/s: Lustre 2.16.0
• Severity: 3
• Assignee: Shaun Tancheff
• Reporter: Shaun Tancheff

Description

http://steve-10.hpc.amslabs.hpecorp.net/TestScreen/neo/index.php?sessionstarttime=1686053724&groupname=racer-FOFB&configuration=dectet&doc_id=647f2360c0ebbd13d13157af&DataBase=lustre&ets=1686131374115

0811 (mds) console:

[  187.296125] LustreError: 7079:0:(mdt_open.c:1373:mdt_reint_open()) @@@ OPEN & CREAT not in open replay/by_fid  req@000000005a1b14a2 x1767947079689920/t0(4294975400) o101->7237381a-7e60-4f2c-bd3d-c3a6e2670fcd@192.168.1.18@tcp:40/0 lens 576/3424 e 0 to 0 dl 1686046445 ref 1 fl Complete:/4/0 rc 0/0 job:'ls.0'
[  187.301936] LustreError: 7079:0:(mdt_handler.c:4777:mdt_intent_open()) @@@ Replay open failed with -14  req@000000005a1b14a2 x1767947079689920/t0(4294975400) o101->7237381a-7e60-4f2c-bd3d-c3a6e2670fcd@192.168.1.18@tcp:40/0 lens 576/600 e 0 to 0 dl 1686046445 ref 1 fl Complete:/4/0 rc 0/0 job:'ls.0'
[  188.159843] LustreError: 7079:0:(mdt_lib.c:816:mdt_fix_reply()) ASSERTION( req_capsule_get_size(pill, &RMF_MDT_MD, RCL_SERVER) == info->mti_attr.ma_lmm_size ) failed: 
[  188.176571] LustreError: 7079:0:(mdt_lib.c:816:mdt_fix_reply()) LBUG
[  188.181052] Pid: 7079, comm: tgt_recover_0 4.18.0-305.10.2.x6.6.000.74.x86_64 #1 SMP Tue May 23 07:54:25 MDT 2023
[  188.199769] Call Trace TBD:
[  188.205106] [<0>] libcfs_call_trace+0x6f/0x90 [libcfs]
[  188.211989] [<0>] lbug_with_loc+0x43/0x80 [libcfs]
[  188.218936] [<0>] mdt_fix_reply+0x6c9/0x700 [mdt]
[  188.232980] [<0>] mdt_reint_internal+0x4e8/0x7d0 [mdt]
[  188.236403] [<0>] mdt_intent_open+0x137/0x420 [mdt]
[  188.240056] [<0>] mdt_intent_opc+0x12c/0xbf0 [mdt]
[  188.243683] [<0>] mdt_intent_policy+0x207/0x3a0 [mdt]
[  188.246854] [<0>] ldlm_lock_enqueue+0x47a/0xb00 [ptlrpc]
[  188.249546] [<0>] ldlm_handle_enqueue0+0x739/0x1410 [ptlrpc]
[  188.252974] [<0>] tgt_enqueue+0xa4/0x210 [ptlrpc]
[  188.256096] [<0>] tgt_request_handle+0xc93/0x1950 [ptlrpc]
[  188.259454] [<0>] handle_recovery_req+0x140/0x270 [ptlrpc]
[  188.263323] [<0>] replay_request_or_update.isra.30+0x2f8/0xa30 [ptlrpc]
[  188.273023] [<0>] target_recovery_thread+0x748/0x12e0 [ptlrpc]
[  188.278908] [<0>] kthread+0x116/0x130
[  188.289521] [<0>] ret_from_fork+0x35/0x40
[  188.292975] Kernel panic - not syncing: LBUG

Comments

[Peter Jones]

Merged for 2.16

[Gerrit Updater]

"Oleg Drokin <[e-mail]>" merged in patch https://review.whamcloud.com/c/fs/lustre-release/+/55551/
Subject: LU-17983 mdt: mti_big_lov and mti_big_lmv
Project: fs/lustre-release
Branch: master
Current Patch Set:
Commit: a1c7d6412e91c98ad96d82123f736342c6165328

[Peter Jones]

As per discussion on the LWG call today, moving tickets that do not appear to be essential to fix version 2.17. If the fix lands before code freeze we will update the fix version to reflect that but we want to focus on activities on the critical path. Please speak up if you think that this issue definitely needs to be fixed before we could issue a 2.16 release.

[Gerrit Updater]

"Shaun Tancheff <[e-mail]>" uploaded a new patch: https://review.whamcloud.com/c/fs/lustre-release/+/55551
Subject: LU-17983 mdt: protect ea attr size
Project: fs/lustre-release
Branch: master
Current Patch Set: 1
Commit: 3a6a2146d6d02c41cd3128706e9d4f88dc7628d4