From: bugzilla-daemon@bugzilla.kernel.org
To: linux-ext4@vger.kernel.org
Subject: [Bug 201685] ext4 file system corruption
Date: Tue, 04 Dec 2018 19:25:53 +0000 [thread overview]
Message-ID: <bug-201685-13602-owSwyyFKfC@https.bugzilla.kernel.org/> (raw)
In-Reply-To: <bug-201685-13602@https.bugzilla.kernel.org/>
https://bugzilla.kernel.org/show_bug.cgi?id=201685
--- Comment #237 from Rainer Fiebig (jrf@mailbox.org) ---
(In reply to Lukáš Krejčí from comment #232)
> Created attachment 279845 [details]
> git bisect between v4.18 and 4.19-rc1
>
> Hello,
>
> I am able to reproduce the data corruption under Qemu, the issue usually
> shows itself fairly quickly (within a minute or two). Generally, the bug was
> very likely to appear when (un)installing packages with apt.
>
> I ran a bisect with the following result (full bisect log is attached):
> # first bad commit: [6ce3dd6eec114930cf2035a8bcb1e80477ed79a8] blk-mq: issue
> directly if hw queue isn't busy in case of 'none'
>
[...]
Congrats! Good to see progress here. Thanks!
I also feel somewhat vindicated as my idea to catch and bisect this in VM
wasn't so bad after all. ;)
But obviously qemu has more knobs to turn than VB - and you just turned the
right ones. Great!
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2018-11-13 19:42 [Bug 201685] New: ext4 file system corruption bugzilla-daemon
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2018-12-05 10:17 ` [Bug 201685] Incorrect disk writes caused by blk-mq lead to " bugzilla-daemon
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