On 2017/3/2 13:19, Xiong Zhou wrote: > On Wed, Mar 01, 2017 at 04:37:31PM -0800, Christoph Hellwig wrote: >> On Wed, Mar 01, 2017 at 12:46:34PM +0800, Xiong Zhou wrote: >>> Hi, >>> >>> It's reproduciable, not everytime though. Ext4 works fine. >> >> On ext4 fsstress won't run bulkstat because it doesn't exist. Either >> way this smells like a MM issue to me as there were not XFS changes >> in that area recently. > > Yap. > > First bad commit: > It looks like not a bug. >From below commit, the allocation failure print was due to current process received SIGKILL signal. You may need to confirm whether that's the case. Regards, Bob > commit 5d17a73a2ebeb8d1c6924b91e53ab2650fe86ffb > Author: Michal Hocko <mhocko@xxxxxxxx> > Date: Fri Feb 24 14:58:53 2017 -0800 > > vmalloc: back off when the current task is killed > > Reverting this commit on top of > e5d56ef Merge tag 'watchdog-for-linus-v4.11' > survives the tests. >
