linux-kernel - Re: [PATCH 0/6] [git pull] updates for tip/tracing/ftrace

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Date:	Wed, 18 Feb 2009 09:57:19 +0100
From:	Ingo Molnar <mingo@...e.hu>
To:	Steven Rostedt <rostedt@...dmis.org>
Cc:	linux-kernel@...r.kernel.org,
	Andrew Morton <akpm@...ux-foundation.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Peter Zijlstra <peterz@...radead.org>,
	Arnaldo Carvalho de Melo <acme@...hat.com>,
	"Luis Claudio R. Goncalves" <lclaudio@...g.org>
Subject: Re: [PATCH 0/6] [git pull] updates for tip/tracing/ftrace


* Ingo Molnar <mingo@...e.hu> wrote:

> Steve, Frederic,
> 
> the function-graph-tracer started locking up since the last 
> batch of changes:
> 
>  Testing tracer sysprof: .. no entries found ..FAILED!
>  initcall 0xffffffff812e91d1 returned -1 after 101562 usecs
>  initcall 0xffffffff812e91d1 returned with error code -1 
>  calling  0xffffffff812e91e3 @ 1
>  Testing tracer function: PASSED
>  Testing dynamic ftrace: 
>  [hard lockup]
> 
> Config attached.

it's one of these recent commits:

 fa7c7f6: tracing/core: remove unused parameter in tracing_fill_pipe_page()
 6eaaa5d: tracing/core: use appropriate waiting on trace_pipe
 35ebf1c: ftrace: show unlimited when traceon or traceoff has no counter
 73d8b8b: tracing: fix typing mistake in hint message and comments
 d2ef7c2: tracing: fix the return value of trace selftest
 af51309: tracing: use the more proper parameter
 b6887d7: ftrace: rename _hook to _probe
 6a24a24: ftrace: clean up coding style

Have not bisected it any further, excluded them from tip:master 
for the time being.

	Ingo
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