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Date: Wed, 05 Feb 2014 18:51:15 +0100
From: Stefan Priebe <s.priebe@profihost.ag>
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Subject: [Qemu-devel] QEMU LIve Migration - swap_free: Bad swap file entry
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To: "pve-devel@pve.proxmox.com" <pve-devel@pve.proxmox.com>, qemu-devel <qemu-devel@nongnu.org>

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