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xen-devel
Re: [Xen-devel] Re: [PATCH] xen: remove support for non-PAE 32-bit
Robert Kaiser (FH) wrote:
I think there's a bug in qemu's x86
emulation with respect to mis-reporting the eip of an xchg which faults,
which may be what you're seeing.
The eip that was reported was always the same, and there was no xchg
instruction at that address. It might have been consistently wrong though
(how would I figure this out?).
The symptom I've observed is that qemu reports the first instruction of
the basic block rather than the exchange itself. If you "x/10i <fault
eip>", you should see an xchg before long.
Either way, sounds like a qemu bug which should be reported to them.
J
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