[Pkg-xen-devel] kernel crashes after soft lockups in xen domU

[Ben Hutchings]

On Wed, 2014-11-05 at 17:56 +0100, Jonas Meurer wrote:
[...]
> So the question is: why does the VM run stable on xen1 while it
> crashes all the time on xen2. If I compare xen1 and xen2, only
> real difference is mainboard (Supermicro X8 on xen1; Supermicro
> X9 on xen2) and CPU (Xeon L5939 on xen1; E5-2609 on xen2)
> 
> As a next step I'll put the harddisks into another X8/Xeon L5639
> server system and try to reproduce the crashes there. My bet is
> that this system will not crash anymore. In other words, I guess
> that this very bug is only triggered with the X9 + E-2609
> combination.
> 
> > Can I do anything additional to help debugging the bug? Shall I report 
> > it
> > to Xen upstream or send it to lkml?
> 
> Still the same question. Shall I send the bugreport to upstream?
> Unfortunately nobody from Debian Linux kernel and/or Xen team seems
> to care :-/
[...]

Sorry you haven't had a response from us so far.  This seems to be
fairly clearly a Linux/Xen interaction and I don't know enough about Xen
to suggest how to debug it.

As it involves a relatively old kernel version, I don't think Linux
upstream developers will want to hear about this unless you can also
reproduce it with a more recent version.  Linux 3.16 is available (in
testing and wheezy-backports) if you would like to try that.

I don't know whether the Xen upstream developers will accept a bug
report against this version.

Ben.

-- 
Ben Hutchings
The program is absolutely right; therefore, the computer must be wrong.
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