Bug #56532: client stalls during vstart_runner test - CephFS - Ceph

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Bug #56532

closed

client stalls during vstart_runner test

Added by Milind Changire almost 2 years ago. Updated 11 months ago.

Status:

Resolved

Priority:

Normal

Assignee:

Xiubo Li

Category:

Target version:

% Done:

Source:

Tags:

backport_processed

Backport:

quincy,pacific

Regression:

Severity:

3 - minor

Reviewed:

Affected Versions:

ceph-qa-suite:

Component(FS):

ceph-fuse

Labels (FS):

Pull request ID:

47114

Crash signature (v1):

Crash signature (v2):

Description

client logs show following message:

failed to remount (to trim kernel dentries): return code = 32

Although, this behavior is seen with my PR: https://github.com/ceph/ceph/pull/44359, this needs to be confirmed whether the new test load (qa/tasks/cephfs/test_uninlining.py) causes the same behavior without the mds side changes i.e. does this behavior manifest on main branch as well

This behavior is seen with fuse-client.

Related issues 2 (0 open — 2 closed)

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Updated by Xiubo Li almost 2 years ago

From Milind's reproducing logs, there has two different error code, which are 1 and 32:

$ grep 'to trim kernel dentries' client.* -rn
client.0.774355.log:98:2022-07-14T14:24:03.984+0530 7fbbd5ffb640 -1 client.4495 failed to remount (to trim kernel dentries): return code = 1
client.0.792060.log:137:2022-07-14T14:34:49.030+0530 7f46017fa640 -1 client.10512 failed to remount (to trim kernel dentries): return code = 32
client.0.793575.log:137:2022-07-14T14:35:32.033+0530 7f779aff5640 -1 client.10990 failed to remount (to trim kernel dentries): return code = 32
client.0.795072.log:137:2022-07-14T14:36:15.771+0530 7f899e7fc640 -1 client.11499 failed to remount (to trim kernel dentries): return code = 32
client.1.774461.log:98:2022-07-14T14:24:05.570+0530 7f766bfff640 -1 client.4505 failed to remount (to trim kernel dentries): return code = 1

When mounting the ceph-fuse it will create a test dentry thread, which will do the remount test in parallel.

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