On 16/07/2015 13:03, Christian Borntraeger wrote: > For what its worth, I can no longer reproduce the issue on > current master + cherry-pick of a0710f7995f (iothread: release iothread > around aio_poll) > > bisect tells me that > > commit 53ec73e264f481b79b52efcadc9ceb8f8996975c > Author: Fam Zheng <f...@redhat.com> > AuthorDate: Fri May 29 18:53:14 2015 +0800 > Commit: Stefan Hajnoczi <stefa...@redhat.com> > CommitDate: Tue Jul 7 14:27:14 2015 +0100 > > block: Use bdrv_drain to replace uncessary bdrv_drain_all > > made the problem will blk-null go away. I still dont understand why.
It could be related to the AioContext problem that I'm fixing these days, too. Good news, we'll requeue the patch for 2.5. Paolo
