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2013 Jun 18
16
[PATCH] ARM: cache coherence problem in guestcopy.c
I''ve encountered a rather unusual bug while I''m implementing live
migration on arndale board.
After resume, domU kernel starts invoking hypercalls and at some point
the hypercall parameters delivered to xen are corrupted.
After some debugging (with the help of HW debugger), I found that
cache polution happens, and here is the detailed sequence.
1) DomU kernel allocates a local