Re: stable: please queue commit 0231bb5 ("perf: Fix event groupcontext move")

From: Ingo Molnar
Date: Mon Aug 05 2013 - 04:21:27 EST

* Li Zefan <lizefan@xxxxxxxxxx> wrote:

> Plese consider adding commit 0231bb5336758426b44ccd798ccd3c5419c95d58
> to stable tree. It fixes a real bug, which was explained here:
> and I've managed to reproduce the bug in 3.4 kernel with the test
> program attached in the above email, and I've confirmed the bug fix.
> The effect of the bug is, if we open a group of mixed events(sw/hw)
> and the "disabled" flag is not set and sw events come first, then
> some of the perf events won't be started after the call to perf_event_open().
> The bug fix should be applicable to kernels >= 3.0 && <= 3.7.

Acked-by: Ingo Molnar <mingo@xxxxxxxxxx>


To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at
Please read the FAQ at