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1ea5a6afd9
It's not enough to simply disable event on overflow the cpuc->active_mask should be cleared as well otherwise counter may stall in "active" even in real being already disabled (which potentially may lead to the situation that user may not use this counter further). Don pointed out that: " I also noticed this patch fixed some unknown NMIs on a P4 when I stressed the box". Tested-by: Lin Ming <ming.m.lin@intel.com> Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org> Acked-by: Don Zickus <dzickus@redhat.com> Signed-off-by: Don Zickus <dzickus@redhat.com> Cc: Cyrill Gorcunov <gorcunov@gmail.com> Link: http://lkml.kernel.org/r/1303398203-2918-3-git-send-email-dzickus@redhat.com Signed-off-by: Ingo Molnar <mingo@elte.hu> |
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