linux-kernel - Re: [PATCH] perf: fix broken perf inject -b

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Date:	Mon, 30 Jan 2012 17:00:08 -0200
From:	Arnaldo Carvalho de Melo <acme@...hat.com>
To:	Stephane Eranian <eranian@...gle.com>
Cc:	linux-kernel@...r.kernel.org, peterz@...radead.org, mingo@...e.hu,
	robert.richter@....com
Subject: Re: [PATCH] perf: fix broken perf inject -b

Em Mon, Jan 16, 2012 at 07:53:28PM +0100, Stephane Eranian escreveu:
> On Fri, Jan 13, 2012 at 5:54 PM, Stephane Eranian <eranian@...gle.com> wrote:
> > On Fri, Jan 13, 2012 at 5:53 PM, Arnaldo Carvalho de Melo <acme@...hat.com> wrote:
> >> Em Fri, Jan 13, 2012 at 03:47:31PM +0100, Stephane Eranian escreveu:
> >>> perf inject -b was broken. It would not inject any build_ids
> >>> into the stream. Furthermore, it would strip samples from the
> >>> stream.
<SNIP>
> >>> @@ -173,6 +178,7 @@ static int perf_event__inject_buildid(struct perf_tool *tool,
> >>>               goto repipe;
> >>>       }
> >>> +     machine->pid = event->ip.pid;

> I noticed that this statement conflicts with perf buildid-list (which
> I am also fixing for pipe mode).

> I don't quite understand why, though.

Have you reached any conclusion about this problem? I haven't looked at
it in detail, could you please elaborate more?

- Arnaldo
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