On Wed, Apr 27, 2011 at 09:27:37AM +0100, Joe Thornber wrote: > On Tue, 2011-04-26 at 14:47 -0400, Christoph Hellwig wrote: > > I can reproduce a bug in virtio triggered by running under dm-thinp by > > just copying lots of files from my home directory into a freshly created > > filesystem on dm-thinp. > > Finally someone has tried using it! I'll look into this today. I actually used the earlier version you posted and didn't reproduce it there. I have a gut feeling it's related to barriers, as I probably just did a basic ext3 test back then. One thing that springs to mind is that both the thinp and multisnap targets don't appear to support empty barriers (that is REQ_FLUSH without a payload), because they don't set ti->num_flush_requests, but I'm not sure that's related. -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel
