linux-ext4 - [Bug 203319] [xfstests generic/538]: unaligned direct AIO find ext4 corruption

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Date:   Mon, 15 Apr 2019 17:39:44 +0000
From:   bugzilla-daemon@...zilla.kernel.org
To:     linux-ext4@...r.kernel.org
Subject: [Bug 203319] [xfstests generic/538]: unaligned direct AIO find ext4
 corruption

https://bugzilla.kernel.org/show_bug.cgi?id=203319

--- Comment #1 from Zorro Lang (zlang@...hat.com) ---
ppc64le(64k pagesize, 512b sector size) can reproduce this bug nearly 100%. I
just ran it 200 times on pcc64le, all failed[1]. But x86_64 can't trigger this
issue, even I use 1k block size ext4.

[1]
QA output created by 538
Data verification fails
Find corruption
00000000  00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
*
00000200  5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a  ZZZZZZZZZZZZZZZZ
00002000
FAIL: [8704, 8192, 512, 0]
-------------------------------------------------
Silence is golden

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