Re: EXT4 regression caused 4eec7

From: Theodore Ts'o
Date: Mon May 13 2013 - 09:52:32 EST


On Mon, May 13, 2013 at 05:47:05PM +0400, Dmitry Monakhov wrote:
> In fact generic/299 always succeed for me, but it produce warning
> WARNING: at fs/ext4/inode.c:3218 ext4_ext_direct_IO
> and complains from slab debug. But it was missed because i've missed
> this error in the logs and forget to check /proc/sys/kernel/tained.

This is how it's failing for me....

generic/299 [23:06:27][ 109.243220] fio (3376) used greatest stack depth: 5240 bytes left
[ 109.252757] fio (3380) used greatest stack depth: 5140 bytes left
[ 109.307227] fio (3374) used greatest stack depth: 4944 bytes left
[23:08:10] [failed, exit status 1] - output mismatch (see /root/xfstests/results/generic/299.out.bad)
--- tests/generic/299.out 2013-04-05 21:41:17.000000000 -0400
+++ /root/xfstests/results/generic/299.out.bad 2013-05-11 23:08:10.835356876 -0400
@@ -3,3 +3,6 @@
Run fio with random aio-dio pattern

Start fallocate/truncate loop
+./common/rc: line 2055: 3335 Segmentation fault "$@" >> $seqres.full 2>&1
+failed: '/root/xfstests/bin/fio /tmp/3135-299.fio'
+(see /root/xfstests/results/generic/299.full for details)
...
(Run 'diff -u tests/generic/299.out /root/xfstests/results/generic/299.out.bad' to see the entire diff)

I haven't had a chance to investigate the core dump yet....

- Ted
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