Re: [Xen-devel] Dom0 crash after bad use of gntdev

[Jeremy Fitzhardinge <jeremy@xxxxxxxx>]

On 12/05/2010 09:43 PM, James Harper wrote:
> I have a bug in some code running in Dom0 that uses gntdev and it's
> crashing Dom0 when it goes wrong. I'm not sure exactly what it's doing
> wrong but is it acceptable for this to happen? The things I know are
> that I'm passing an invalid array to xc_gnttab_map_grant_refs and then
> unmapping it without checking the result of the mapping. I'm not sure
> what else is going on aside from those two things.

In principle the kernel shouldn't crash as a result from misuse of an
ABI, and it often indicates some problem which might affect things in a
more subtle way under other circumstances.  Can you post the details of
your crash and what your program is doing?

Thanks,
    J

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