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Re: [Xen-devel] [BUG] Xen vm kernel crash in get_free_entries.

On Sat, 2013-10-19 at 14:51 +0400, Astarta wrote:
> On 10/19/2013 03:14 AM, Sander Eikelenboom wrote:

> > makes a HVM guest (qemu-xen-traditional) with xen_platform_pci=0 boot again 
> > using xl, haven't tested it with xend.
> >
> Great catch!
> I also confirm that 3.11.5 kernel boots just fine after reverting of 
> 'correctly initialize grant table version 1' patch.

This could just be down to that patch adding some BUG_ONs to catch bad
things going on, e.g. the one in gnttab_expand which I think is being
hit here.

I have a feeling that it is still wrong (but just more benign) to be
hitting that call chain in a configuration where there is no platform
device driver running. IOW reverting that patch removes the obvious
symptom (blowing up) but not the root cause, i.e. the patch is doing its


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