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Bug#622333: Debian Squeeze hangs with kernel 2.6.32-5-xen-686

On Saturday, 23 April 2011 19:09:30 -0300,
Daniel Bareiro wrote:

> > > Here I found a thread [1] with a problem quite like this (although
> > > in my case the hardware is different: A8V-MX motherboard and AMD
> > > Athlon 64 Processor 3500+) in the xen-users mailing list. And
> > > another thread [2] which is derived from the above.
> > > 
> > > I'll try using "cpuidle=off" or "max_cstate=1" at xen cmdline in
> > > /boot/grub/grub.conf.

> > It's probably worth trying cpuidle=off but it looks like the
> > max_cstate=1 thing is Intel specific. It's not clear to me in either
> > case if the root cause of the issue this fixes is a h/w or s/w
> > issue.
> Using "cpuidle=off" and xen-hypervisor-4.0-amd64 package had no
> effect.  After an uptime of 20:26:44, everything became frozen again.
> Now I'm trying with the "max_cstate=1" option.
> This time there was no visual evidence in the disk activity LED when
> the problem occurred, but I do not see revealing information in system
> logs.

> > Do you have irqbalanced installed/running?

> No, I'm not using irqbalance. This is a uniprocessor system (AMD
> Athlon(tm) 64 Processor 3500+ with A8V-MX motherdoard).

Using "max_cstate=1" it did not have effect either.

What I observed on several occasions is that when making a rsync or scp
of several Gigabytes, the computer froze. The loss of network connection
made me think that it might be a problem with the network card, but from
the moment the screen also stops responding if I connect a monitor to
the computer, this makes me think that perhaps there is some other

But it seems the problem could be linked to high network transfer rate.

Daniel Bareiro - GNU/Linux registered user #188.598
Proudly running Debian GNU/Linux with uptime:
01:59:15 up 15 days, 11:55, 10 users,  load average: 0.08, 0.04, 0.00

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