On 02/06/2014 09:20 AM, Stefan Priebe - Profihost AG wrote:
Am 05.02.2014 21:15, schrieb Dr. David Alan Gilbert:
* Stefan Priebe (s.pri...@profihost.ag) wrote:
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


Is this live migration with shared storage? what kind of shared storage?
Does this happens with smaller guests?

Qemu is 1.7

Does anybody know a fix?

I don't, but some more information about:
     1) What guest you're running

Linux guest the output is also from the guest. Kernel 3.10.26

     2) The configuration of your hosts

What do you mean by that?

     3) The command line (or XML if you're running libvirt) for
        your qemu so we can see what devices you're running.

qemu -chardev
socket,id=qmp,path=/var/run/qemu-server/179.qmp,server,nowait -mon
chardev=qmp,mode=control -vnc
unix:/var/run/qemu-server/179.vnc,x509,password -pidfile
/var/run/qemu-server/179.pid -daemonize -name K31953 -smp
sockets=1,cores=16 -nodefaults -boot
menu=on,strict=on,reboot-timeout=1000 -vga cirrus -cpu
kvm64,+lahf_lm,+x2apic,+sep -k de -m 32768 -device
piix3-usb-uhci,id=uhci,bus=pci.0,addr=0x1.0x2 -device
usb-tablet,id=tablet,bus=uhci.0,port=1 -device
virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x3 -drive
if=none,id=drive-ide2,media=cdrom,aio=native -device
ide-cd,bus=ide.1,unit=0,drive=drive-ide2,id=ide2,bootindex=200 -device
virtio-scsi-pci,id=scsihw0,bus=pci.0,addr=0x5 -drive
file=rbd:...,if=none,id=drive-scsi0,iops_rd=1000,iops_wr=500,bps_rd=314572800,bps_wr=209715200,aio=native,discard=on
-device
scsi-hd,bus=scsihw0.0,channel=0,scsi-id=0,lun=0,drive=drive-scsi0,id=scsi0,bootindex=100
-netdev
type=tap,id=net0,ifname=tap179i0,script=/var/lib/qemu-server/pve-bridge,vhost=on
-device
virtio-net-pci,mac=CA:CA:23:AC:2D:C5,netdev=net0,bus=pci.0,addr=0x12,id=net0,bootindex=300
-rtc base=localtime -machine type=pc-i440fx-1.7

Do you get any messages on either the source or destination
qemu during the migrate?

no

Stefan



Reply via email to