[pve-devel] live migration problems

Dietmar Maurer dietmar at proxmox.com
Thu Aug 30 10:08:44 CEST 2012

> so you can reproduce the bug ?

I saw several different problems. For example, after live migration I have a VM 103 running, and qmp socket seems to block:

# ps auxww|grep kvm
root      110639 73.2 36.4 1803160 699452 ?      Rl   09:42   6:22 /usr/bin/kvm -id 103 -chardev socket,id=qmp,path=/var/run/qemu-server/103.qmp,server,nowait -mon chardev=qmp,mode=control -vnc unix:/var/run/qemu-server/103.vnc,x509,

# lsof |grep /var/run/qemu-server/103.qmp
kvm       110639     root    3u     unix 0xffff88006735af00         0t0     422078 /var/run/qemu-server/103.qmp
kvm       110639     root   56u     unix 0xffff880061d1c580         0t0     424078 /var/run/qemu-server/103.qmp

No idea why there are two open FDs, both owned by process 110639?

I tried to connect with socat

# socat - /var/run/qemu-server/103.qmp  

and that simply blocks.

Any ideas?

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