Re: [PATCH v1 1/2] perf stat: Clear reset_group for each stat run

[Andi Kleen]

On 8/22/2022 11:33 PM, Ian Rogers wrote:
> If a weak group is broken then the reset_group flag remains set for
> the next run. Having reset_group set means the counter isn't created
> and ultimately a segfault.
>
> A simple reproduction of this is:
> perf stat -r2 -e '{cycles,cycles,cycles,cycles,cycles,cycles,cycles,cycles,cycles,cycles}:W
> which will be added as a test in the next patch.
>
> Fixes: 4804e0111662 ("perf stat: Use affinity for opening events")
> Signed-off-by: Ian Rogers <irogers@xxxxxxxxxx>


Makes sense


Reviewed-by: Andi Kleen <ak@xxxxxxxxxxxxxxx>