linux-kernel - Re: [GIT PULL 0/5] perf/urgent fixes

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Date:	Thu, 12 Sep 2013 07:45:38 +0200
From:	Ingo Molnar <mingo@...nel.org>
To:	Arnaldo Carvalho de Melo <acme@...stprotocols.net>
Cc:	linux-kernel@...r.kernel.org,
	Adrian Hunter <adrian.hunter@...el.com>,
	Andi Kleen <ak@...ux.intel.com>,
	David Ahern <dsahern@...il.com>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Ingo Molnar <mingo@...e.hu>, Jiri Olsa <jolsa@...hat.com>,
	Mike Galbraith <efault@....de>,
	Namhyung Kim <namhyung@...il.com>,
	Paul Mackerras <paulus@...ba.org>,
	Peter Zijlstra <peterz@...radead.org>,
	Stephane Eranian <eranian@...gle.com>
Subject: Re: [GIT PULL 0/5] perf/urgent fixes


* Arnaldo Carvalho de Melo <acme@...stprotocols.net> wrote:

> Em Wed, Sep 11, 2013 at 07:55:03AM +0200, Ingo Molnar escreveu:
> >  16645 perf_event_open(0x1eb7f00, 0xffffffff, 0, 0xffffffff, 0) = -1 EINVAL (Invalid argument)
> > 
> > Caused by:
> > 
> >  575a9aab0f85 perf tools: Add attr->mmap2 support
> > 
> > We must not force mmap2 support to be present on the kernel side - new 
> > perf top should work on older kernels just as well.
> > 
> > So I've unpulled the tree for now.
> 
> yeah, I noticed this late yesterday, made it to work like the fallback
> for perf_event_attr.{sample_id_all,exclude_{guest,host}} and folded that
> into Stephane's patch, with a committer note, to keep things bisectable.
> 
> Can you please do a test pull with the updated branch + tag below? If
> you prefer me to do the whole dance and send a regular pull request,
> please let me now.

Pulled, thanks a lot Arnaldo! 'perf top' works fine here now on older 
kernels as well.

	Ingo
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