linux-kernel - Re: [tip:perf/core] perf/core: Verify we have a single perf_hw

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Date:	Mon, 4 Apr 2016 20:44:00 +0200
From:	Borislav Petkov <bp@...e.de>
To:	Peter Zijlstra <peterz@...radead.org>
Cc:	torvalds@...ux-foundation.org, jolsa@...hat.com,
	vincent.weaver@...ne.edu, alexander.shishkin@...ux.intel.com,
	linux-kernel@...r.kernel.org, mingo@...nel.org, acme@...hat.com,
	tglx@...utronix.de, eranian@...gle.com, hpa@...or.com,
	linux-tip-commits@...r.kernel.org
Subject: Re: [tip:perf/core] perf/core: Verify we have a single
 perf_hw_context PMU

On Mon, Apr 04, 2016 at 04:02:08PM +0200, Peter Zijlstra wrote:
> This triggered on AMD machines..
> 
> ---
> Subject: perf,amd: Do not register a task ctx for uncore PMUs
> 
> Uncore PMUs are per node, they cannot have per-task counters.
> 
> Reported-by: Borislav Petkov <bp@...e.de>
	  ^
	  -and-tested-by: moi

> Reported-by: Ingo Molnar <mingo@...nel.org>
> Signed-off-by: Peter Zijlstra (Intel) <peterz@...radead.org>
> ---
>  arch/x86/events/amd/uncore.c |    2 ++
>  1 files changed, 2 insertions(+), 0 deletions(-)

...

-- 
Regards/Gruss,
    Boris.

SUSE Linux GmbH, GF: Felix Imendörffer, Jane Smithard, Graham Norton, HRB 21284 (AG Nürnberg)
--