[LU-18226] sanity: test_600b Error: 'unevict_mb is 99, expected 100'

• Type: Bug
• Resolution: Fixed
• Priority: Minor
• Fix Version/s: Lustre 2.16.0
• Affects Version/s: Lustre 2.16.0
• Labels: mtg
• Severity: 3
• Assignee: Andreas Dilger
• Reporter: Maloo

Description

This issue was created by maloo for Serguei Smirnov <[e-mail]>

This issue relates to the following test suite run: https://testing.whamcloud.com/test_sets/06df43a4-b963-405e-90a8-b42c2e62c95c

Test session details:
clients: https://build.whamcloud.com/job/lustre-reviews/107591 - 4.18.0-513.24.1.el8_9.x86_64
servers: https://build.whamcloud.com/job/lustre-reviews/107591 - 4.18.0-513.24.1.el8_lustre.x86_64

osc.lustre-OST0006-osc-ffff9bc8dfcc3800.enable_page_cache_shrink=0
llite.lustre-ffff9bc8dfcc3800.enable_mlock_pages=1
llite.lustre-ffff9bc8dfcc3800.max_cached_mb=
users: 10
max_cached_mb: 1794
used_mb: 0
unused_mb: 1794
unevict_mb: 0
reclaim_count: 495872
max_read_ahead_mb: 256
used_read_ahead_mb: 0
llite.lustre-ffff9bc8dfcc3800.max_cached_mb=64
/mnt/lustre/f600b.sanity

[ ] 0/25600
[o ] 261/25600
[OOo ] 1025/25600
[OOOOo ] 2048/25600
[OOOOOOo ] 2816/25600
[OOOOOOOOo ] 3584/25600
[OOOOOOOOOo ] 4054/25600
[OOOOOOOOOOo ] 4313/25600
[OOOOOOOOOOOOo ] 5535/25600
[OOOOOOOOOOOOOOOOo ] 6870/25600
[OOOOOOOOOOOOOOOOOo ] 7638/25600
[OOOOOOOOOOOOOOOOOo ] 7639/25600
[OOOOOOOOOOOOOOOOOOo ] 7898/25600
[OOOOOOOOOOOOOOOOOOOo ] 8193/25600
[OOOOOOOOOOOOOOOOOOOOOo ] 9175/25600
[OOOOOOOOOOOOOOOOOOOOOOOo ] 9943/25600
[OOOOOOOOOOOOOOOOOOOOOOOOOo ] 10711/25600
[OOOOOOOOOOOOOOOOOOOOOOOOOOo ] 11479/25600
[OOOOOOOOOOOOOOOOOOOOOOOOOOOOo ] 12280/25600
[OOOOOOOOOOOOOOOOOOOOOOOOOOOOOo ] 12594/25600
[OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOo ] 13445/25600
[OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOo ] 13904/25600
[OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOo ] 14584/25600
[OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOo ] 15916/25600
[OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOo ] 16322/25600
[OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOo ] 20119/25600
[OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOo ] 24436/25600
[OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO] 25600/25600
LOCKED 25600 pages (100M)
Files: 1
Directories: 0
Resident Pages: 25599/25600 99M/100M 100%
Elapsed: 0.002666 seconds
Mlocked: 102368 kB
llite.lustre-ffff9bc8dfcc3800.max_cached_mb=
users: 10
max_cached_mb: 64
used_mb: 54
unused_mb: 10
unevict_mb: 46
reclaim_count: 495872
max_read_ahead_mb: 256
used_read_ahead_mb: 0
llite.lustre-ffff9bc8dfcc3800.unevict_cached_mb=clear
sanity test_600b: @@@@@@ FAIL: unevict_mb is 99, expected 100

Issue Links

• is related to: LU-17463 enable/disable page cache shrinker for mlocked pages on OSC layer