Re: [Xen-devel] PAE PV guest kernel regression

["Jan Beulich" <jbeulich@xxxxxxxx>]

>>> "Jan Beulich" <jbeulich@xxxxxxxx> 06/07/12 8:50 PM >>>
>Is it perhaps the really old 3.0.4 based one, and lacking a backport of
>14041:b010e556fe2c? In that case the comparison part of the
>cmpxchg8b emulation failing would apparently be treated equally to
>e.g. a fault having occurred during the emulation (i.e. the original
>page fault would get forwarded rather than just EFLAGS.ZF getting
>set).

Having read the other thread with Andrea's explanation, that's unlikely
the culprit. He says the cmpxchg8b is being done on a PMD entry,
which the ptwr code definitely doesn't support so far.

Jan


_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxx
http://lists.xen.org/xen-devel