Re: [Xen-users] pv_ops domU crashes on pv_ops dom0 (directly at boot)

[Markus Schuster <ml@xxxxxxxxxxxxxxxxxxxx>]

Am Mittwoch 20 Januar 2010 23:40:55 schrieben Sie:
> On 01/20/2010 02:08 PM, Markus Schuster wrote:
> > Sorry, forgot to mention that the 32bit PAE domU I spoke about earlier
> > has 3 VCPUs attached and is booting/working fine. So I suspect the bug
> > somewhere in 64bit SMP support?
> 
> Perhaps.  The backtrace appears to be completely in generic code, so the
> bug is likely the result of a side-effect of different initialization
> order, or perhaps something that the Xen SMP code isn't setting up that
> native does.  Unfortunately these kinds of implicit state dependency
> bugs can be tricky to track down, and the fact that you appear to be the
> only person seeing this suggests that it is also config dependent.

OK, I try to get some devel hardware where I can reproduce the bug - on my 
single core single processor workstation I'm unable to reproduce it (with same 
binaries). 

Furthermore I'll try the opensuse forward ported patches for 2.6.31 as dom0 - 
to rule out my pv_ops dom0 kernel as cause. 

If you think it's config dependent, could you (or someone else) please provide 
a working-for-him/her pv_ops domU kernel config? Cause if the problem lays in 
the configuration, we should inform Debian people of the potential problem 
with their default kernel configuration - as far as I know they want to go 
stable with 2.6.32. 

Seems to be a hard to crack nut... :)

Regards,
Markus

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