>>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" <s.pri...@profihost.ag> À: "Alexandre DERUMIER" <aderum...@odiso.com> Cc: pve-de...@pve.proxmox.com, "qemu-devel" <qemu-devel@nongnu.org> 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" <s.pri...@profihost.ag> > À: pve-de...@pve.proxmox.com, "qemu-devel" <qemu-devel@nongnu.org> > 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 > pve-de...@pve.proxmox.com > http://pve.proxmox.com/cgi-bin/mailman/listinfo/pve-devel >