debian 5 guest "freezing" (vcpu shows 100%) randomly twice a day


Active Member
Dec 10, 2009
since moving to proxmox 2.0 one of the vm guest freezes twice a day, vm cpu shows 100%, network seems stopped.
vm guest is a debian 5 x64 with plesk

I've tryed to switch the clocksource after reading (grub 1 version) but it won't boot (vm hangs while loading kernel in early steps).

There is no log anywhere about this "event", either on vm or on host.
munin node just stops responding, apache stops responding, mysql also.

An idea ? Is correct for grub 1 ?


Proxmox Staff Member
Staff member
Aug 29, 2006
if you use virtio inside your Debian Lenny, you need to run 2.6.32 kernel and not the default 2.6.26. this is reported several times in this forum.


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