Re: [tip:perf/core] perf/core: Verify we have a single perf_hw_context PMU
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- Subject: Re: [tip:perf/core] perf/core: Verify we have a single perf_hw_context PMU
- From: Borislav Petkov <bp@xxxxxxx>
- Date: Mon, 4 Apr 2016 20:44:00 +0200
- Cc: torvalds@xxxxxxxxxxxxxxxxxxxx, jolsa@xxxxxxxxxx, vincent.weaver@xxxxxxxxx, alexander.shishkin@xxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, mingo@xxxxxxxxxx, acme@xxxxxxxxxx, tglx@xxxxxxxxxxxxx, eranian@xxxxxxxxxx, hpa@xxxxxxxxx, linux-tip-commits@xxxxxxxxxxxxxxx
- In-reply-to: <20160404140208.GA3448@twins.programming.kicks-ass.net>
- User-agent: Mutt/1.5.24 (2015-08-30)
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@xxxxxxx>
^
-and-tested-by: moi
> Reported-by: Ingo Molnar <mingo@xxxxxxxxxx>
> Signed-off-by: Peter Zijlstra (Intel) <peterz@xxxxxxxxxxxxx>
> ---
> 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)
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