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" <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 >>
