[LU-8177] osp-syn threads in D state

• Type: Bug
• Resolution: Incomplete
• Priority: Blocker
• Affects Version/s: Lustre 2.5.3
• Severity: 1
• Assignee: John Fuchs-Chesney (Inactive)
• Reporter: Mahmoud Hanafi

Description

When trying to mount mdt all osp-syn threads stuck in 'D' state.

Debug logs are filled with these messages

00000004:00080000:8.0:1463850740.016156:0:14081:0:(osp_sync.c:317:osp_sync_request_commit_cb()) commit req ffff883ebf799800, transno 0
00000004:00080000:8.0:1463850740.016164:0:14081:0:(osp_sync.c:351:osp_sync_interpret()) reply req ffff883ebf799800/1, rc -2, transno 0
00000100:00100000:8.0:1463850740.016176:0:14081:0:(client.c:1872:ptlrpc_check_set()) Completed RPC pname:cluuid:pid:xid:nid:opc ptlrpcd_3:nbp2-MDT0000-mdtlov_UUID:14081:1534957896521600:10.151.26.98@o2ib:6
00000004:00080000:9.0:1463850740.016219:0:14087:0:(osp_sync.c:317:osp_sync_request_commit_cb()) commit req ffff883ebed48800, transno 0
00000004:00080000:9.0:1463850740.016226:0:14087:0:(osp_sync.c:351:osp_sync_interpret()) reply req ffff883ebed48800/1, rc -2, transno 0

I will upload full debug logs to ftp site.

Issue Links

• is related to: LU-7079 OSP shouldn't discard requests due to imp_peer_committed_transno

Comments

[John Fuchs-Chesney (Inactive)]

Resolving as incomplete.

Please let us know if any further work is required on this ticket.

Thanks,
~ jfc.

[John Fuchs-Chesney (Inactive)]

Hello Mahmoud,

Do you want us to continue to keep this ticket open?

Thanks,
~ jfc.

[Jay Lan (Inactive)]

Thanks!

[Jian Yu]

Hello Jay,

Here is the back-ported patch for Lustre b2_5_fe branch: http://review.whamcloud.com/20392

[Jay Lan (Inactive)]

We have a b2_7_fe version of the patch, but need a back port to b2_5_fe. Thanks!

[Mahmoud Hanafi]

Please leave the case open for now.

[John Fuchs-Chesney (Inactive)]

Thank you for the update Mahmoud.

I think we'll keep the priority as it is for the time being (for recording purposes).

Do you want us to keep the ticket open for a while longer? Or do you think this event is now resolved?

Best regards,
~ jfc.