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Re: [Qemu-devel] [pve-devel] QEMU LIve Migration - swap_free: Bad swap f
From: |
Stefan Priebe - Profihost AG |
Subject: |
Re: [Qemu-devel] [pve-devel] QEMU LIve Migration - swap_free: Bad swap file entry |
Date: |
Thu, 06 Feb 2014 13:10:39 +0100 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.2.0 |
May be,
sadly i've no idea. Only using 3.10 Kernel with XFS.
Stefan
Am 06.02.2014 12:40, schrieb Alexandre DERUMIER:
>>> PS: all my guests do not even have !!SWAP!!
>
> Not sure is related to swap file.
>
> I found an similar problem here, triggered with suspend/resume on ext4
>
> http://lkml.indiana.edu/hypermail/linux/kernel/1106.3/01340.html
>
>
> Maybe is it a guest kernel bug ?
>
> ----- Mail original -----
>
> De: "Stefan Priebe - Profihost AG" <address@hidden>
> À: "Alexandre DERUMIER" <address@hidden>
> Cc: address@hidden, "qemu-devel" <address@hidden>
> Envoyé: Jeudi 6 Février 2014 12:19:36
> Objet: Re: [pve-devel] QEMU LIve Migration - swap_free: Bad swap file entry
>
>
> Am 06.02.2014 12:14, schrieb Alexandre DERUMIER:
>> Do you force rbd_cache=true in ceph.conf?
>
> no
>
>> if yes, do you use cache=writeback ?
>
> yes
>
> So this should be safe.
>
> PS: all my guests do not even have !!SWAP!!
>
> # free|grep Swap
> Swap: 0 0 0
>
> Stefan
>
>> according to ceph doc:
>> http://ceph.com/docs/next/rbd/qemu-rbd/
>>
>> "Important If you set rbd_cache=true, you must set cache=writeback or risk
>> data loss. Without cache=writeback, QEMU will not send flush requests to
>> librbd. If QEMU exits uncleanly in this configuration, filesystems on top of
>> rbd can be corrupted."
>>
>>
>>
>> ----- Mail original -----
>>
>> De: "Stefan Priebe" <address@hidden>
>> À: address@hidden, "qemu-devel" <address@hidden>
>> Envoyé: Mercredi 5 Février 2014 18:51:15
>> Objet: [pve-devel] QEMU LIve Migration - swap_free: Bad swap file entry
>>
>> Hello,
>>
>> after live migrating machines with a lot of memory (32GB, 48GB, ...) i
>> see pretty often crashing services after migration and the guest kernel
>> prints:
>>
>> [1707620.031806] swap_free: Bad swap file entry 00377410
>> [1707620.031806] swap_free: Bad swap file entry 00593c48
>> [1707620.031807] swap_free: Bad swap file entry 03201430
>> [1707620.031807] swap_free: Bad swap file entry 01bc5900
>> [1707620.031807] swap_free: Bad swap file entry 0173ce40
>> [1707620.031808] swap_free: Bad swap file entry 011c0270
>> [1707620.031808] swap_free: Bad swap file entry 03c58ae8
>> [1707660.749059] BUG: Bad rss-counter state mm:ffff88064d09f380 idx:1
>> val:1536
>> [1707660.749937] BUG: Bad rss-counter state mm:ffff88064d09f380 idx:2
>> val:-1536
>>
>> Qemu is 1.7
>>
>> Does anybody know a fix?
>>
>> Greets,
>> Stefan
>> _______________________________________________
>> pve-devel mailing list
>> address@hidden
>> http://pve.proxmox.com/cgi-bin/mailman/listinfo/pve-devel
>>
- [Qemu-devel] QEMU LIve Migration - swap_free: Bad swap file entry, Stefan Priebe, 2014/02/05
- 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 <=
- 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, 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, 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