[LU-18743] sanity-scrub test fail with debug enabled kernels.

• Type: Bug
• Resolution: Fixed
• Priority: Major
• Fix Version/s: Lustre 2.17.0
• Affects Version/s: Lustre 2.17.0
• Labels: janitor9x
• Environment: Clients running a RHEL8 debug kernel.
• Severity: 3
• Assignee: James A Simmons
• Reporter: James A Simmons

Description

Current for RHEL8 debug kernels sanity-scrub test will fail on the clients with the following error:

WARNING: CPU: 1 PID: 37 at include/linux/backing-dev.h:291 ll_writepages+0x3dd/0x400 [lustre]

[ 1266.941486] Workqueue: writeback wb_workfn (flush-lustre-ffff8f09f4)

[ 1266.951369] RIP: 0010:ll_writepages+0x3dd/0x400 [lustre] [ 1266.953378] Code: e8 f8 9b e9 f4 48 83 05 d0 02 0f 00 01 85 c0 74 11 48 83 05 cc 02 0f 00 01 0f b6 43 24 e9 09 fd ff ff 48 83 05 c3 02 0f 00 01 <0f> 0b 48 83 05 c1 02 0f 00 01 48 83 05 c1 02 0f 00 01 e9 5f ff ff [ 1266.962419] RSP: 0018:ffffafd900da3b58 EFLAGS: 00010202

[ 1267.025525] Call Trace: [ 1267.032775] ? show_regs.cold.9+0x22/0x2f

[ 1267.042520] ? __warn+0xc8/0x150 [ 1267.043623] ? ll_writepages+0x3dd/0x400 [lustre]

Issue Links

• is related to: LU-16807 Resolve newer debug kernel warnings

Comments

[Peter Jones]

Merged for 2.17

[Gerrit Updater]

"Oleg Drokin <[e-mail]>" merged in patch https://review.whamcloud.com/c/fs/lustre-release/+/58161/
Subject: LU-18743 llite: inode_to_wb() needs locking
Project: fs/lustre-release
Branch: master
Current Patch Set:
Commit: 5fb5cccd934acba8fdeb0eeb75004fb727875240

[James A Simmons]

I fixed the kernel debug issues but now the sanity-scrub test fail for other reasons for Oleg setup. We can continue that work under here as well.

[Gerrit Updater]

"James Simmons <[e-mail]>" uploaded a new patch: https://review.whamcloud.com/c/fs/lustre-release/+/58161
Subject: LU-18743 llite: inode_to_wb() needs locking
Project: fs/lustre-release
Branch: master
Current Patch Set: 1
Commit: d6c2b7520af0631781cb7543711839938a5fa555