On Sat, 11 May 2013 12:13:20 +0400, Dmitry Monakhov [off-list ref] wrote:

On Fri, 10 May 2013 15:27:47 -0400, Theodore Ts'o [off-list ref] wrote:

quoted

Hmm, since you seem to be able to reproduce the problem reliably, any
chance you can try bisecting the problem?  I've looked at the commits
that touch fs/jbd2 and nothing is jumping out at me.

Also, how many CPU's do you have your system, and what kind of storage
device were you using when you were running iozone (5400rpm HDD,
7200RPM HDD, RAID array, SSD, etc.)?

Ok, I've able to reproduce corruption on ext4
So at this moment we have:
Slub corruption on XFS testcase: xfstests/generic/013
Slub corruption on EXT4 testcase: xfstests/generic/299

In fact both test cases (069'th and 299'th) are just stress tests.
So this is likely a regression in mm layer. I try to bisect it now.


#Testcase: xfstests  generic/299
#DMESG