On Fri, Aug 05, 2016 at 08:11:36PM +0200, Johannes Stezenbach wrote: > On Fri, Aug 05, 2016 at 10:02:28AM -0700, Darrick J. Wong wrote: > > > > When you're back on 4.7, can you apply this patch[1] to see if it fixes > > the problem? I speculate that the new parallel dir lookup code enables > > multiple threads to be verifying the same directory block buffer at the > > same time. > > > > [1] > > https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/fs/ext4/inode.c?id=b47820edd1634dc1208f9212b7ecfb4230610a23 > > I added the patch, rebuilt and rebooted. It will take some time > before I'll report back since the issue is so hard to reproduce.
FWIW, so far the issue didn't appear again after I applied the patch to 4.7.0, and I stressed it a bit with repo syncs, AOSP builds, rsync backups etc. Johannes
