Re: perf: kernel memory leak when inherit enabled

From: Vince Weaver
Date: Mon Mar 14 2011 - 18:27:46 EST


On Fri, 11 Mar 2011, Vince Weaver wrote:
>
> While trying to use perf events with inherit enabled to profile some
> multi-threaded BLAS routines (using PAPI) I ended up out-of-memorying my
> machine. It turns out you can quickly leak gigabytes of kernel memory
> that isn't freed when the process exits.

I've bisected this. There's a whole day I'll never see again. binutils
2.21 and gcc-4.5 for the lose :(

Anyway this memory leak with inherit was introduced in
4fd38e4595e

Vince

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/