Xen devel - Jul 2009 - [PATCH] x86 shadow: avoid race between resync and fast path

Hello,

I think that using fast path and OOS is not incompatible, it was just 
buggy at the moment. This patch should fix it. I''ll remove the
offending
feature (fast path gnp) anyway, but since we are still interested in 
fast path mmio and there could still be a incredibly rare corruption 
(*), it is better to fix the mechanism.

Frank, can you check that with this patch only the bug goes away?

Thanks,
Gianluca

Fix lock-less race between resync and fast path.

Signed-off-by: Gianluca Guida <gianluca.guida@eu.citrix.com>




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