From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:58124) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1WE2YM-0000yR-BF for qemu-devel@nongnu.org; Thu, 13 Feb 2014 15:06:39 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1WE2YH-0001TF-6r for qemu-devel@nongnu.org; Thu, 13 Feb 2014 15:06:34 -0500 Received: from mx1.redhat.com ([209.132.183.28]:8546) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1WE2YG-0001T5-Tp for qemu-devel@nongnu.org; Thu, 13 Feb 2014 15:06:29 -0500 Date: Thu, 13 Feb 2014 20:06:18 +0000 From: "Dr. David Alan Gilbert" Message-ID: <20140213200617.GK24733@work-vm> References: <52F4D9E2.4010600@profihost.ag> <52F4DD77.7000209@redhat.com> <52F4E211.9080808@profihost.ag> <52F4E37D.4050204@profihost.ag> <52F5321C.4090605@profihost.ag> <20140207200204.GA5013@work-vm> <52F53DBC.8000209@profihost.ag> <52F68438.9050300@profihost.ag> <20140210160706.GK3545@work-vm> <52F92035.5040402@profihost.ag> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <52F92035.5040402@profihost.ag> Subject: Re: [Qemu-devel] [pve-devel] QEMU LIve Migration - swap_free: Bad swap file entry List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Stefan Priebe Cc: Paolo Bonzini , qemu-devel , Alexandre DERUMIER , owasserm@redhat.com * Stefan Priebe (s.priebe@profihost.ag) wrote: > Am 10.02.2014 17:07, schrieb Dr. David Alan Gilbert: > >* Stefan Priebe (s.priebe@profihost.ag) wrote: > >>i could fix it by explicitly disable xbzrle - it seems its > >>automatically on if i do not set the migration caps to false. > >> > >>So it seems to be a xbzrle bug. > > > >Stefan can you give me some more info on your hardware and > >migration setup; that stressapptest (which is a really nice > >find!) really batters the memory and it means the migration > >isn't converging for me, so I'm curious what your setup is. > > That one is devlopment by google and known to me since a few years. > Google has detected that memtest and co are not good enough to > stress test memory. Hi Stefan, I've just posted a patch to qemu-devel that fixes two bugs that we found; I've only tried a small stressapptest run and it seems to survive with them (where it didn't before); you might like to try it if you're up for rebuilding qemu. It's the one entitled ' [PATCH] Fix two XBZRLE corruption issues' I'll try and get a larger run done myself, but I'd be interested to hear if it fixes it for you (or anyone else who hit the problem). Dave -- Dr. David Alan Gilbert / dgilbert@redhat.com / Manchester, UK