Re: EXT4 regression caused 4eec7

[Dmitry Monakhov <dmonakhov@openvz.org>]

On Mon, 13 May 2013 09:52:21 -0400, Theodore Ts'o <tytso@mit.edu> wrote:
> 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....
Because you ask questions, but do not read answers :)
http://marc.info/?l=linux-ext4&m=136580060822252&w=2
http://marc.info/?l=linux-ext4&m=136610044500931&w=2
> 
> 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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