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Re: [Qemu-devel] [pve-devel] QEMU LIve Migration - swap_free: Bad swap f
From: |
Dr. David Alan Gilbert |
Subject: |
Re: [Qemu-devel] [pve-devel] QEMU LIve Migration - swap_free: Bad swap file entry |
Date: |
Fri, 7 Feb 2014 09:15:14 +0000 |
User-agent: |
Mutt/1.5.21 (2010-09-15) |
* Stefan Priebe - Profihost AG (address@hidden) wrote:
> Am 07.02.2014 09:15, schrieb Alexandre DERUMIER:
> >
> > do you use xbzrle for live migration ?
>
> no - i'm really stucked right now with this. Biggest problem i can't
> reproduce with test machines ;-(
Only being able to test on your production VMs isn't fun;
is it possible or you to run an extra program on these VMs - e.g.
if we came up with a simple (userland) memory test?
Dave
>
> Stefan
>
>
> >
> > ----- Mail original -----
> >
> > De: "Stefan Priebe" <address@hidden>
> > À: "Dr. David Alan Gilbert" <address@hidden>
> > Cc: "Alexandre DERUMIER" <address@hidden>, "qemu-devel" <address@hidden>
> > Envoyé: Jeudi 6 Février 2014 21:00:27
> > Objet: Re: [Qemu-devel] [pve-devel] QEMU LIve Migration - swap_free: Bad
> > swap file entry
> >
> > Hi,
> > Am 06.02.2014 20:51, schrieb Dr. David Alan Gilbert:
> >> * Stefan Priebe - Profihost AG (address@hidden) wrote:
> >>> some more things which happen during migration:
> >>>
> >>> php5.2[20258]: segfault at a0 ip 0000000000740656 sp 00007fff53b694a0
> >>> error 4 in php-cgi[400000+6d7000]
> >>>
> >>> php5.2[20249]: segfault at c ip 00007f1fb8ecb2b8 sp 00007fff642d9c20
> >>> error 4 in ZendOptimizer.so[7f1fb8e71000+147000]
> >>>
> >>> cron[3154]: segfault at 7f0008a70ed4 ip 00007fc890b9d440 sp
> >>> 00007fff08a6f9b0 error 4 in libc-2.13.so[7fc890b67000+182000]
> >>
> >> OK, so lets just assume some part of memory (or CPU state, or memory
> >> loaded off disk...)
> >>
> >> You said before that it was happening on a 32GB image - is it *only*
> >> happening on a 32GB or bigger VM, or is it just more likely?
> >
> > Not image, memory. I've only seen this with vms having more than 16GB or
> > 32GB memory. But maybe this also indicates that just the migration takes
> > longer.
> >
> >> I think you also said you were using 1.7; have you tried an older
> >> version - i.e. is this a regression in 1.7 or don't we know?
> > Don't know. Sadly i cannot reproduce this with test VMs only with
> > production ones.
> >
> > Stefan
> >
> >> Dave
> >> --
> >> Dr. David Alan Gilbert / address@hidden / Manchester, UK
> >>
>
--
Dr. David Alan Gilbert / address@hidden / Manchester, UK
- Re: [Qemu-devel] [pve-devel] QEMU LIve Migration - swap_free: Bad swap file entry, (continued)
- Re: [Qemu-devel] [pve-devel] QEMU LIve Migration - swap_free: Bad swap file entry, Alexandre DERUMIER, 2014/02/06
- Re: [Qemu-devel] [pve-devel] QEMU LIve Migration - swap_free: Bad swap file entry, Stefan Priebe - Profihost AG, 2014/02/06
- Re: [Qemu-devel] [pve-devel] QEMU LIve Migration - swap_free: Bad swap file entry, Alexandre DERUMIER, 2014/02/06
- Re: [Qemu-devel] [pve-devel] QEMU LIve Migration - swap_free: Bad swap file entry, Stefan Priebe - Profihost AG, 2014/02/06
- Re: [Qemu-devel] [pve-devel] QEMU LIve Migration - swap_free: Bad swap file entry, Stefan Priebe - Profihost AG, 2014/02/06
- Re: [Qemu-devel] [pve-devel] QEMU LIve Migration - swap_free: Bad swap file entry, Marcin Gibuła, 2014/02/06
- Re: [Qemu-devel] [pve-devel] QEMU LIve Migration - swap_free: Bad swap file entry, Dr. David Alan Gilbert, 2014/02/06
- Re: [Qemu-devel] [pve-devel] QEMU LIve Migration - swap_free: Bad swap file entry, Stefan Priebe, 2014/02/06
- Re: [Qemu-devel] [pve-devel] QEMU LIve Migration - swap_free: Bad swap file entry, Alexandre DERUMIER, 2014/02/07
- Re: [Qemu-devel] [pve-devel] QEMU LIve Migration - swap_free: Bad swap file entry, Stefan Priebe - Profihost AG, 2014/02/07
- Re: [Qemu-devel] [pve-devel] QEMU LIve Migration - swap_free: Bad swap file entry,
Dr. David Alan Gilbert <=
- Re: [Qemu-devel] [pve-devel] QEMU LIve Migration - swap_free: Bad swap file entry, Stefan Priebe - Profihost AG, 2014/02/07
- Re: [Qemu-devel] [pve-devel] QEMU LIve Migration - swap_free: Bad swap file entry, Marcin Gibuła, 2014/02/07
- Re: [Qemu-devel] [pve-devel] QEMU LIve Migration - swap_free: Bad swap file entry, Stefan Priebe - Profihost AG, 2014/02/07
- Re: [Qemu-devel] [pve-devel] QEMU LIve Migration - swap_free: Bad swap file entry, Dr. David Alan Gilbert, 2014/02/07
- Re: [Qemu-devel] [pve-devel] QEMU LIve Migration - swap_free: Bad swap file entry, Stefan Priebe - Profihost AG, 2014/02/07
- Re: [Qemu-devel] [pve-devel] QEMU LIve Migration - swap_free: Bad swap file entry, Stefan Priebe - Profihost AG, 2014/02/07
- Re: [Qemu-devel] [pve-devel] QEMU LIve Migration - swap_free: Bad swap file entry, Dr. David Alan Gilbert, 2014/02/07
- Re: [Qemu-devel] [pve-devel] QEMU LIve Migration - swap_free: Bad swap file entry, Stefan Priebe - Profihost AG, 2014/02/07
- Re: [Qemu-devel] [pve-devel] QEMU LIve Migration - swap_free: Bad swap file entry, Paolo Bonzini, 2014/02/07
- Re: [Qemu-devel] [pve-devel] QEMU LIve Migration - swap_free: Bad swap file entry, Stefan Priebe - Profihost AG, 2014/02/07