From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:46762) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1WCDUy-00031P-1D for qemu-devel@nongnu.org; Sat, 08 Feb 2014 14:23:37 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1WCDUs-0000jy-R5 for qemu-devel@nongnu.org; Sat, 08 Feb 2014 14:23:31 -0500 Received: from mail-ph.de-nserver.de ([85.158.179.214]:44276) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1WCDUs-0000js-FP for qemu-devel@nongnu.org; Sat, 08 Feb 2014 14:23:26 -0500 Message-ID: <52F68438.9050300@profihost.ag> Date: Sat, 08 Feb 2014 20:23:36 +0100 From: Stefan Priebe MIME-Version: 1.0 References: <52F4A952.6080007@profihost.ag> <52F4CB3E.3030203@profihost.ag> <20140207122157.GF2374@work-vm> <52F4D1CA.6030501@profihost.ag> <52F4D523.9040809@redhat.com> <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> In-Reply-To: <52F53DBC.8000209@profihost.ag> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit 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: "Dr. David Alan Gilbert" Cc: Paolo Bonzini , qemu-devel , Alexandre DERUMIER 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 Am 07.02.2014 21:10, schrieb Stefan Priebe: > Am 07.02.2014 21:02, schrieb Dr. David Alan Gilbert: >> * Stefan Priebe (s.priebe@profihost.ag) wrote: >>> anything i could try or debug? to help to find the problem? >> >> I think the most useful would be to see if the problem is >> a new problem in the 1.7 you're using or has existed >> for a while; depending on the machine type you used, it might >> be possible to load that image on an earlier (or newer) qemu >> and try the same test, however if the problem doesn't >> repeat reliably it can be hard. > > I've seen this first with Qemu 1.5 but was not able to reproduce it for > month. 1.4 was working fine. > >> If you have any way of simplifying the configuration of the >> VM it would be good; e.g. if you could get a failure on >> something without graphics (-nographic) and USB. > > Sadly not ;-( > >> Dave >> >>> >>> Stefan >>> >>> Am 07.02.2014 14:45, schrieb Stefan Priebe - Profihost AG: >>>> it's always the same "pattern" there are too many 0 instead of X. >>>> >>>> only seen: >>>> >>>> read:0x0000000000000000 ... expected:0xffffffffffffffff >>>> >>>> or >>>> >>>> read:0xffffffff00000000 ... expected:0xffffffffffffffff >>>> >>>> or >>>> >>>> read:0x0000bf000000bf00 ... expected:0xffffbfffffffbfff >>>> >>>> or >>>> >>>> read:0x0000000000000000 ... expected:0xb5b5b5b5b5b5b5b5 >>>> >>>> no idea if this helps. >>>> >>>> Stefan >>>> >>>> Am 07.02.2014 14:39, schrieb Stefan Priebe - Profihost AG: >>>>> Hi, >>>>> Am 07.02.2014 14:19, schrieb Paolo Bonzini: >>>>>> Il 07/02/2014 14:04, Stefan Priebe - Profihost AG ha scritto: >>>>>>> first of all i've now a memory image of a VM where i can >>>>>>> reproduce it. >>>>>> >>>>>> You mean you start that VM with -incoming 'exec:cat /path/to/vm.img'? >>>>>> But google stress test doesn't report any error until you start >>>>>> migration _and_ it finishes? >>>>> >>>>> Sorry no i meant i have a VM where i saved the memory to disk - so i >>>>> don't need to wait hours until i can reproduce as it does not happen >>>>> with a fresh started VM. So it's a state file i think. >>>>> >>>>>> Another test: >>>>>> >>>>>> - start the VM with -S, migrate, do errors appear on the destination? >>>>> >>>>> I started with -S and the errors appear AFTER resuming/unpause the VM. >>>>> So it is fine until i resume it on the "new" host. >>>>> >>>>> Stefan >>>>> >>> >> -- >> Dr. David Alan Gilbert / dgilbert@redhat.com / Manchester, UK >>