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SubjectRe: perf sw_event related lockup

I missed the beginning of this thread somehow.
What's the initial problem?

On Mon, Nov 18, 2013 at 9:54 AM, Peter Zijlstra <> wrote:
> On Fri, Nov 15, 2013 at 12:26:16PM -0500, Vince Weaver wrote:
>> On Fri, 15 Nov 2013, Peter Zijlstra wrote:
>> >
>> > Please enable CONFIG_FRAME_POINTER to get better backtraces, but the
>> > above suggests the pagefault swevent, will have a look.
>> here it is again I think. I compiled with CONFIG_FRAME_POINTER but the
>> backtraces don't look that different.
> Looks to be that other one -- the one where the intel constraints thing
> goes belly up. I was hoping Stephane would look at that since I know
> he's been rewriting that code.

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