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    SubjectRe: [PATCH -tip] perf, x86: P4 PMU - Don't forget to clear cpuc->active_mask on overflow
    On 04/21/2011 05:17 PM, Ingo Molnar wrote:
    > * Don Zickus <> wrote:
    >> On Wed, Apr 20, 2011 at 07:13:37PM +0400, Cyrill Gorcunov wrote:
    >>> 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).
    >> I also noticed this patch fixed some unknown NMIs on a P4 when I stressed
    >> the box
    >> Acked-by: Don Zickus <>
    > Ok. Mind one of you resending all pending patches in this area, with all
    > Acked-by's and Tested-by's in place?
    > I'd like to ask one more thing as well: please submit the patches in a single
    > e-mail thread - i.e. with a proper 0/N and e-mail threading, so that anyone can
    > see that they are a group of patches. Current submissions are various versions
    > of patches with no clear grouping.
    > Thanks,
    > Ingo

    Don, will you pick it up in addition to your unknown NMI fast-fix?


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