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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 12:19:36 +0100 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.2.0 |
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 <=
- 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, 2014/02/07
- Re: [Qemu-devel] [pve-devel] QEMU LIve Migration - swap_free: Bad swap file entry, Stefan Priebe - Profihost AG, 2014/02/07