Bug#607709: XEN kernel crash (this time with a shorter trace)

[Giuseppe Sacco <giuseppe@eppesuigoccas.homedns.org>]

Hi Ian,
thanks for working on this report.

Il giorno mar, 04/01/2011 alle 11.53 +0000, Ian Campbell ha scritto:
> On Thu, 2010-12-30 at 16:02 +0100, Giuseppe Sacco wrote:
> > A new crash on that machine, after upgrading kernel, is shown here:
> > 
> > Dec 29 22:21:28 atf-124 kernel: [49041.588528] ------------[ cut here ]------------
> > Dec 29 22:21:28 atf-124 kernel: [49041.591269] kernel BUG at /build/buildd-linux-2.6_2.6.32-29-i386-Of6Yt1/linux-2.6-2.6
> > .32/debian/build/source_i386_xen/arch/x86/xen/enlighten.c:309!
> 
> This seems to be this BUG():
> 
>         static void set_aliased_prot(void *v, pgprot_t prot)
>         {
>                [...]
>         
>                 if (HYPERVISOR_update_va_mapping((unsigned long)v, pte, 0))
>                         BUG();
>         
> I would expect some log on the hypervisor console (xm dmesg) which
> corresponds with this hypercall failure, which would be very useful to
> see..

Currently I cannot access that machine because of public holidays. The
problem about this request is that during last test the machine crashed
and automatically rebooted. We will try again one ot these days,
hopefully before tomorrow.

Bye,
Giuseppe