From: bugzilla-daemon@bugzilla.kernel.org
To: linux-ext4@vger.kernel.org
Subject: [Bug 201685] ext4 file system corruption
Date: Sun, 02 Dec 2018 19:10:40 +0000 [thread overview]
Message-ID: <bug-201685-13602-nBmwkXw2Uq@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 #156 from Guenter Roeck (linux@roeck-us.net) ---
Status update: I have not been able to reproduce the problem with v4.19.6 minus
the reverts from #99. I did see some failures, specifically exactly one per
affected file system, but I attribute those to false positives (I did not run
fsck as recommended prior to starting the test).
stats:
System 1:
uptime: 18h 45m
iostats:
Device tps MB_read/s MB_wrtn/s MB_read MB_wrtn
loop0 0.00 0.00 0.00 0 0
nvme0n1 195.54 3.27 3.96 220723 267555
sda 128.88 0.36 18.91 24659 1277907
sdb 131.40 18.85 5.07 1273780 342404
nvme0n1 and sda were previously affected. sdb is a new drive.
System 2:
uptime: 14h 56m
iostats:
Device tps kB_read/s kB_wrtn/s kB_read kB_wrtn
loop0 0.00 0.00 0.00 5 0
sda 26.45 538.25 87.87 28965283 4728576
sdb 108.87 2875.25 4351.42 154728917 234167724
Both sda and sdb were previously affected.
My next step will be to try v4.19.6 with the following reverts:
Revert "ext4: handle layout changes to pinned DAX mappings"
Revert "dax: remove VM_MIXEDMAP for fsdax and device dax"
Revert "ext4: close race between direct IO and ext4_break_layouts()"
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2018-11-13 19:42 [Bug 201685] New: ext4 file system corruption bugzilla-daemon
2018-11-14 21:20 ` [Bug 201685] " 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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