[lustre-discuss] some clients dmesg filled up with "dirty page discard"

[肖正刚]

Hi, all

We found that some clients' dmesg filled up with messages like
"
Aug 24 19:54:34 ln5 kernel: Lustre:
13565:0:(llite_lib.c:2759:ll_dirty_page_discard_warn()) public1: dirty page
discard: 10.10.2.11 at o2ib:10.10.2.12 at o2ib:/public1/fid:
[0x200007a82:0x1680f:0x0]/ may get corrupted (rc -108)
Aug 24 19:54:34 ln5 kernel: Lustre:
13547:0:(llite_lib.c:2759:ll_dirty_page_discard_warn()) public1: dirty page
discard: 10.10.2.11 at o2ib:10.10.2.12 at o2ib:/public1/fid:
[0x200007a82:0x14246:0x0]/ may get corrupted (rc -108)
Aug 24 19:54:34 ln5 kernel: Lustre:
13545:0:(llite_lib.c:2759:ll_dirty_page_discard_warn()) public1: dirty page
discard: 10.10.2.11 at o2ib:10.10.2.12 at o2ib:/public1/fid:
[0x200007a82:0x12018:0x0]/ may get corrupted (rc -108)
Aug 24 19:54:34 ln5 kernel: Lustre:
13567:0:(llite_lib.c:2759:ll_dirty_page_discard_warn()) public1: dirty page
discard: 10.10.2.11 at o2ib:10.10.2.12 at o2ib:/public1/fid:
[0x200007a82:0x12c86:0x0]/ may get corrupted (rc -108)
Aug 24 19:54:34 ln5 kernel: Lustre:
13566:0:(llite_lib.c:2759:ll_dirty_page_discard_warn()) public1: dirty page
discard: 10.10.2.11 at o2ib:10.10.2.12 at o2ib:/public1/fid:
[0x200007a82:0x12c76:0x0]/ may get corrupted (rc -108)
Aug 24 19:54:34 ln5 kernel: Lustre:
13550:0:(llite_lib.c:2759:ll_dirty_page_discard_warn()) public1: dirty page
discard: 10.10.2.11 at o2ib:10.10.2.12 at o2ib:/public1/fid:
[0x200007a82:0x12c8e:0x0]/ may get corrupted (rc -108)
Aug 24 19:54:34 ln5 kernel: Lustre:
13568:0:(llite_lib.c:2759:ll_dirty_page_discard_warn()) public1: dirty page
discard: 10.10.2.11 at o2ib:10.10.2.12 at o2ib:/public1/fid:
[0x200007a82:0x12c66:0x0]/ may get corrupted (rc -108)
Aug 24 19:54:34 ln5 kernel: Lustre:
13569:0:(llite_lib.c:2759:ll_dirty_page_discard_warn()) public1: dirty page
discard: 10.10.2.11 at o2ib:10.10.2.12 at o2ib:/public1/fid:
[0x200007a82:0x12c7e:0x0]/ may get corrupted (rc -108)
Aug 24 19:54:34 ln5 kernel: Lustre:
13548:0:(llite_lib.c:2759:ll_dirty_page_discard_warn()) public1: dirty page
discard: 10.10.2.11 at o2ib:10.10.2.12 at o2ib:/public1/fid:
[0x200007a82:0x12c6e:0x0]/ may get corrupted (rc -108)
Aug 24 19:54:34 ln5 kernel: Lustre:
13570:0:(llite_lib.c:2759:ll_dirty_page_discard_warn()) public1: dirty page
discard: 10.10.2.11 at o2ib:10.10.2.12 at o2ib:/public1/fid:
[0x200007a82:0x12ca6:0x0]/ may get corrupted (rc -108)
Aug 24 19:54:34 ln5 kernel: Lustre:
13549:0:(llite_lib.c:2759:ll_dirty_page_discard_warn()) public1: dirty page
discard: 10.10.2.11 at o2ib:10.10.2.12 at o2ib:/public1/fid:
[0x200007a82:0x12cbe:0x0]/ may get corrupted (rc -108)
Aug 24 19:54:34 ln5 kernel: Lustre:
13571:0:(llite_lib.c:2759:ll_dirty_page_discard_warn()) public1: dirty page
discard: 10.10.2.11 at o2ib:10.10.2.12 at o2ib:/public1/fid:
[0x200007a82:0x12cb6:0x0]/ may get corrupted (rc -108)
Aug 24 19:54:34 ln5 kernel: Lustre:
13551:0:(llite_lib.c:2759:ll_dirty_page_discard_warn()) public1: dirty page
discard: 10.10.2.11 at o2ib:10.10.2.12 at o2ib:/public1/fid:
[0x200007a82:0x12cae:0x0]/ may get corrupted (rc -108)
Aug 24 19:54:34 ln5 kernel: Lustre:
13572:0:(llite_lib.c:2759:ll_dirty_page_discard_warn()) public1: dirty page
discard: 10.10.2.11 at o2ib:10.10.2.12 at o2ib:/public1/fid:
[0x200007a82:0x12cce:0x0]/ may get corrupted (rc -108)
Aug 24 19:54:34 ln5 kernel: Lustre:
13573:0:(llite_lib.c:2759:ll_dirty_page_discard_warn()) public1: dirty page
discard: 10.10.2.11 at o2ib:10.10.2.12 at o2ib:/public1/fid:
[0x200007a82:0x12cc6:0x0]/ may get corrupted (rc -108)
Aug 24 19:54:34 ln5 kernel: Lustre:
13574:0:(llite_lib.c:2759:ll_dirty_page_discard_warn()) public1: dirty page
discard: 10.10.2.11 at o2ib:10.10.2.12 at o2ib:/public1/fid:
[0x200007a82:0x12d56:0x0]/ may get corrupted (rc -108)
Aug 24 19:54:34 ln5 kernel: Lustre:
13575:0:(llite_lib.c:2759:ll_dirty_page_discard_warn()) public1: dirty page
discard: 10.10.2.11 at o2ib:10.10.2.12 at o2ib:/public1/fid:
[0x200007a82:0x12d36:0x0]/ may get corrupted (rc -108)
Aug 24 19:54:34 ln5 kernel: Lustre:
13576:0:(llite_lib.c:2759:ll_dirty_page_discard_warn()) public1: dirty page
discard: 10.10.2.11 at o2ib:10.10.2.12 at o2ib:/public1/fid:
[0x200007a82:0x1429e:0x0]/ may get corrupted (rc -108)

"
Then, we checked disk array, sas link, multipath, but no error found.
Has anyone ever met the same problem ?
Any suggestions will help!

Regards.
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