[LU-7007] (ost_handler.c:1779:ost_blocking_ast()) Error -2 syncing data on lock cancel

• Status: Resolved
• Project: Lustre
• Affects Version/s: Lustre 2.5.3
• Type: Bug
• Priority: Minor
• Reporter: Bruno Travouillon (Inactive)
• Assignee: Zhenyu Xu
• Resolution: Duplicate

Environment

RHEL6 + Lustre 2.5.3.90 w/ Bull patches

• Severity: 3

Description

UOne of our customer is reporting the following LustreError on some OSS.

1438581838 2015 Aug  3 08:03:58 oss18 kern err kernel LustreError: 8437:0:(ost_handler.c:1779:ost_blocking_ast()) Error -2 syncing data on lock cancel
1438581838 2015 Aug  3 08:03:58 oss18 kern err kernel LustreError: 8437:0:(ost_handler.c:1779:ost_blocking_ast()) Skipped 4 previous similar messages
1438582510 2015 Aug  3 08:15:10 oss18 kern err kernel LustreError: 18709:0:(ost_handler.c:1779:ost_blocking_ast()) Error -2 syncing data on lock cancel
1438582510 2015 Aug  3 08:15:10 oss18 kern err kernel LustreError: 18709:0:(ost_handler.c:1779:ost_blocking_ast()) Skipped 9 previous similar messages
1438583195 2015 Aug  3 08:26:35 oss18 kern err kernel LustreError: 25920:0:(ost_handler.c:1779:ost_blocking_ast()) Error -2 syncing data on lock cancel
1438583195 2015 Aug  3 08:26:35 oss18 kern err kernel LustreError: 25920:0:(ost_handler.c:1779:ost_blocking_ast()) Skipped 9 previous similar messages
1438583820 2015 Aug  3 08:37:00 oss18 kern err kernel LustreError: 18710:0:(ost_handler.c:1779:ost_blocking_ast()) Error -2 syncing data on lock cancel
1438583820 2015 Aug  3 08:37:00 oss18 kern err kernel LustreError: 18710:0:(ost_handler.c:1779:ost_blocking_ast()) Skipped 5 previous similar messages
1438560676 2015 Aug  3 02:11:16 oss9 kern err kernel LustreError: 13052:0:(ost_handler.c:1779:ost_blocking_ast()) Error -2 syncing data on lock cancel
1438560731 2015 Aug  3 02:12:11 oss9 kern err kernel LustreError: 8738:0:(ost_handler.c:1779:ost_blocking_ast()) Error -2 syncing data on lock cancel
1438561317 2015 Aug  3 02:21:57 oss9 kern err kernel LustreError: 19710:0:(ost_handler.c:1779:ost_blocking_ast()) Error -2 syncing data on lock cancel
1438561337 2015 Aug  3 02:22:17 oss9 kern err kernel LustreError: 11213:0:(ost_handler.c:1779:ost_blocking_ast()) Error -2 syncing data on lock cancel
1438561347 2015 Aug  3 02:22:27 oss9 kern err kernel LustreError: 8738:0:(ost_handler.c:1779:ost_blocking_ast()) Error -2 syncing data on lock cancel
1438561432 2015 Aug  3 02:23:52 oss9 kern err kernel LustreError: 23191:0:(ost_handler.c:1779:ost_blocking_ast()) Error -2 syncing data on lock cancel
1438561462 2015 Aug  3 02:24:22 oss9 kern err kernel LustreError: 8868:0:(ost_handler.c:1779:ost_blocking_ast()) Error -2 syncing data on lock cancel
1438561934 2015 Aug  3 02:32:14 oss9 kern err kernel LustreError: 8739:0:(ost_handler.c:1779:ost_blocking_ast()) Error -2 syncing data on lock cancel
1438562044 2015 Aug  3 02:34:04 oss9 kern err kernel LustreError: 11583:0:(ost_handler.c:1779:ost_blocking_ast()) Error -2 syncing data on lock cancel
1438562044 2015 Aug  3 02:34:04 oss9 kern err kernel LustreError: 11583:0:(ost_handler.c:1779:ost_blocking_ast()) Skipped 2 previous similar messages
1438562304 2015 Aug  3 02:38:24 oss9 kern err kernel LustreError: 8739:0:(ost_handler.c:1779:ost_blocking_ast()) Error -2 syncing data on lock cancel
1438562304 2015 Aug  3 02:38:24 oss9 kern err kernel LustreError: 8739:0:(ost_handler.c:1779:ost_blocking_ast()) Skipped 1 previous similar message
1438562600 2015 Aug  3 02:43:20 oss9 kern err kernel LustreError: 11583:0:(ost_handler.c:1779:ost_blocking_ast()) Error -2 syncing data on lock cancel
1438562600 2015 Aug  3 02:43:20 oss9 kern err kernel LustreError: 11583:0:(ost_handler.c:1779:ost_blocking_ast()) Skipped 2 previous similar messages
1438563165 2015 Aug  3 02:52:45 oss9 kern err kernel LustreError: 8867:0:(ost_handler.c:1779:ost_blocking_ast()) Error -2 syncing data on lock cancel
1438563165 2015 Aug  3 02:52:45 oss9 kern err kernel LustreError: 8867:0:(ost_handler.c:1779:ost_blocking_ast()) Skipped 6 previous similar messages
1438563811 2015 Aug  3 03:03:31 oss9 kern err kernel LustreError: 8738:0:(ost_handler.c:1779:ost_blocking_ast()) Error -2 syncing data on lock cancel
1438563811 2015 Aug  3 03:03:31 oss9 kern err kernel LustreError: 8738:0:(ost_handler.c:1779:ost_blocking_ast()) Skipped 11 previous similar messages
1438564535 2015 Aug  3 03:15:35 oss9 kern err kernel LustreError: 31566:0:(ost_handler.c:1779:ost_blocking_ast()) Error -2 syncing data on lock cancel
1438564535 2015 Aug  3 03:15:35 oss9 kern err kernel LustreError: 31566:0:(ost_handler.c:1779:ost_blocking_ast()) Skipped 4 previous similar messages
1438565141 2015 Aug  3 03:25:41 oss9 kern err kernel LustreError: 31568:0:(ost_handler.c:1779:ost_blocking_ast()) Error -2 syncing data on lock cancel
1438565141 2015 Aug  3 03:25:41 oss9 kern err kernel LustreError: 31568:0:(ost_handler.c:1779:ost_blocking_ast()) Skipped 1 previous similar message
1438565797 2015 Aug  3 03:36:37 oss9 kern err kernel LustreError: 8868:0:(ost_handler.c:1779:ost_blocking_ast()) Error -2 syncing data on lock cancel
1438565797 2015 Aug  3 03:36:37 oss9 kern err kernel LustreError: 8868:0:(ost_handler.c:1779:ost_blocking_ast()) Skipped 4 previous similar messages
1438566520 2015 Aug  3 03:48:40 oss9 kern err kernel LustreError: 15149:0:(ost_handler.c:1779:ost_blocking_ast()) Error -2 syncing data on lock cancel
1438566520 2015 Aug  3 03:48:40 oss9 kern err kernel LustreError: 15149:0:(ost_handler.c:1779:ost_blocking_ast()) Skipped 17 previous similar messages
1438567156 2015 Aug  3 03:59:16 oss9 kern err kernel LustreError: 23838:0:(ost_handler.c:1779:ost_blocking_ast()) Error -2 syncing data on lock cancel
1438567156 2015 Aug  3 03:59:16 oss9 kern err kernel LustreError: 23838:0:(ost_handler.c:1779:ost_blocking_ast()) Skipped 9 previous similar messages
1438567855 2015 Aug  3 04:10:55 oss9 kern err kernel LustreError: 8867:0:(ost_handler.c:1779:ost_blocking_ast()) Error -2 syncing data on lock cancel
1438567855 2015 Aug  3 04:10:55 oss9 kern err kernel LustreError: 8867:0:(ost_handler.c:1779:ost_blocking_ast()) Skipped 6 previous similar messages
1438568468 2015 Aug  3 04:21:08 oss9 kern err kernel LustreError: 5834:0:(ost_handler.c:1779:ost_blocking_ast()) Error -2 syncing data on lock cancel

These messages can appear several times a day, and we don't know how to fix this.

It looks like LU-6664. Peter ask me to open a new ticket for tracking.

Is there any debug to add in order to understand these messages? i can't find something relevant in the code.

Issue Links

• duplicates: LU-6664 (ost_handler.c:1765:ost_blocking_ast(...

Comments

[Joseph Gmitter (Inactive)]

Bobijam,
We believe this is related to LU-6664. Can you have a look and see if a patch to master would resolve this issue?
Thanks.
Joe

[Andreas Dilger]

The message itself is harmless and has been quieted in http://review.whamcloud.com/15167

Closing this as a duplicate of LU-6664.