Re: [PATCH] perf tools: Do not fail on processing out of order event

From: Andi Kleen
Date: Thu Nov 27 2014 - 14:44:21 EST


On Wed, Nov 26, 2014 at 04:39:31PM +0100, Jiri Olsa wrote:
> Linus reported perf report command being interrupted due to
> processing of 'out of order' event, with following error:
>
> Timestamp below last timeslice flush
> 0x5733a8 [0x28]: failed to process type: 3
>
> I could reproduce the issue and in my case it was caused by one
> CPU (mmap) being behind during record and userspace mmap reader
> seeing the data after other CPUs data were already stored.

I like the change. This problem hit me a couple of times too.

-Andi
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