[LU-15861] replay-single test_73a: multiop pid failed: "fchmod: No such file or directory"

• Status: Open
• Project: Lustre
• Type: Bug
• Priority: Minor
• Reporter: Maloo
• Assignee: WC Triage
• Resolution: Unresolved
• Severity: 3

Description

This issue was created by maloo for Andreas Dilger <[e-mail]>

This issue relates to the following test suite run: https://testing.whamcloud.com/test_sets/6af39bb0-606d-49c0-8426-2cc6fd5d1040

test_73a failed with the following error:

fchmod: No such file or directory
multiop pid failed

This has been failing intermittently for at least the last two years. It is currently failing about 1/250 runs.

VVVVVVV DO NOT REMOVE LINES BELOW, Added by Maloo for auto-association VVVVVVV
replay-single test_73a - multiop pid failed

Issue Links

• is related to: LU-3127 replay-single test_73b: fchmod: No su...
• is related to: LU-9590 replay-single test cases 61d 89 73b r...

Comments

[Andreas Dilger]

Likely still the same issue as LU-3127. This subtest was disabled via that ticket, but re-enabled on 2017-10-16 by patch https://review.whamcloud.com/27404 "LU-9590 tests: remove replay-single tests from ALWAYS_EXCEPT" likely because it doesn't fail very often.

It seems more likely to hit on ZFS than ldiskfs, even though these subtests are run the same number of times for each filesystem type (AFAIK), so it is likely that the test is racy, and the slower ZFS performance opens up this race.