Bug #7958: ceph-fuse+fsx umount hang on leaked inode reference - CephFS - Ceph

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Bug #7958

closed

ceph-fuse+fsx umount hang on leaked inode reference

Added by Sage Weil about 10 years ago. Updated about 10 years ago.

Status:

Resolved

Priority:

Urgent

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Category:

Target version:

% Done:

Source:

Q/A

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Backport:

Regression:

Severity:

3 - minor

Reviewed:

Affected Versions:

ceph-qa-suite:

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Crash signature (v1):

Crash signature (v2):

Description

ubuntu@teuthology:/var/lib/teuthworker/archive/teuthology-2014-03-31_23:00:36-fs-master-testing-basic-plana/157636

client log is in that directory.

2014-04-02 10:23:34.312312 7f58bdcc6780 1 client.4117 dump_inode: DISCONNECTED inode 100000006c8 #100000006c8 ref 1100000006c8.head(ref=1 cap_refs={1024=0,2048=0,4096=0,8192=0} open={3=0} mode=100664 size=82691691 mtime=2014-04-01 12:04:27.071016 caps=pAsLsXsFscr(0=pAsLsXsFscr) objectset[100000006c8 ts 4163/11336682 objects 0 dirty_or_tx 0] 0x7f58a03cbc60)

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Updated by Sage Weil about 10 years ago

ubuntu@teuthology:/var/lib/teuthworker/archive/teuthology-2014-04-01_23:00:33-fs-firefly-distro-basic-plana/160589

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Updated by Zheng Yan about 10 years ago

I guess it's introduce by commit f1c7b4ef0 (client: pin Inode during readahead). Readahead raced with truncate. ObjectCacher::discard_set removed the readahead buffer head, but didn't call finish read context

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