[ kvm-Bugs-2584543 ] Migration failed on kvm 83 (regression from 79)

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Bugs item #2584543, was opened at 2009-02-10 11:16
Message generated for change (Comment added) made by jessorensen
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https://sourceforge.net/tracker/?func=detail&atid=893831&aid=2584543&group_id=180599

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Category: None
Group: None
Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By: Guido Trotter (ultrotter)
Assigned to: Nobody/Anonymous (nobody)
Summary: Migration failed on kvm 83 (regression from 79)

Initial Comment:
Hi,

I'm running kvm on a Dual-Core AMD Opteron(tm) Processor and I'm having problems with live migration, since moving to version 83. Everything works fine on version 79. Basically I'm trying to do a live migration while a process is pinging, and the vm dies with a kernel dump, while on kvm 79 everything continued to run. The vm has a default debian lenny installed in it (with the 2.6.26 lenny kernel and everything) while the host is running a custom 2.6.27 kernel. Kvm is started (by ganeti 2.0, whose support for kvm I'm developing) with the following options:

/usr/bin/kvm -m 128 -smp 1 -pidfile /var/run/ganeti/kvm-hypervisor/pid/instance -name instance -daemonize -boot c -drive file=/var/run/ganeti/instance-disks/instance:0,format=raw,if=virtio,boot=on -drive file=/usr/src/debian-Lenny-DI-rc2-amd64-netinst.iso,format=raw,media=cdrom,if=virtio -vnc :5364 -monitor unix:/var/run/ganeti/kvm-hypervisor/ctrl/instance.monitor,server,nowait -serial none -net nic,macaddr=MAC,model=virtio -net tap,script=/tmp/tmpQQ5yTE -incoming tcp:IP:8102

(the tap script is autogenerated by ganeti and connects the interface to the correct bridge)

I suspect it might be something introduced in the patch to make networking on live migration more smooth...

Thanks,

Guido


----------------------------------------------------------------------

>Comment By: Jes Sorensen (jessorensen)
Date: 2010-11-26 09:24

Message:
Hi,

Is this still a problem? There has been a lot of fixes to the migration
code since you reported this bug.

Sorry that you didn't see any answers earlier.

Regards,
Jes


----------------------------------------------------------------------

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