Re: [Xen-devel] Xen unstable crash on grant table debug output

[Andre Przywara <andre.przywara@xxxxxxx>]

Keir Fraser wrote:
> changeset 21017:   83a8e561f3ff
> Fix grant table debug key.
>
> Must skip domains with gt_version==0.
> Signed-off-by: Keir Fraser <keir.fraser@xxxxxxxxxx>

Thanks Keir,
that fixes the issue for me.

Regards,
Andre.

> Andre Przywara wrote:
> > we see a crash of recent Xen unstable on various machines while dumping 
> > the "grant table usage" debug information ("# xm debug g" or 3*Ctrl+A g)
> > (XEN) ****************************************
> > (XEN) Panic on CPU 7:
> > (XEN) Assertion 'gt->gt_version != 0' failed at grant_table.c:216
> > (XEN) ****************************************
> > (XEN) ...
> > (XEN) Manual reset required ('noreboot' specified)
> >
> > To reproduce:
> > * start Xen unstable HV (tried 2.6.18 Dom0)
> > * start a guest (we only tried HVM guests), letting them idle in grub
> >  suffices
> > * # xm debug g
> > <CRASH>
> >
> > I haven't had time to investigate this (and am not very familiar with 
> > that part of the code), so any help is appreciated.

--
Andre Przywara
AMD-Operating System Research Center (OSRC), Dresden, Germany
Tel: +49 351 448 3567 12
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