linux-kernel - Re: [2.6.39-rc2] perf top fails to mmap

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Message-Id: <201104241347.52486.tim@klingt.org>
Date:	Sun, 24 Apr 2011 13:47:52 +0200
From:	Tim Blechmann <tim@...ngt.org>
To:	Lin Ming <ming.m.lin@...el.com>
Cc:	David Ahern <dsahern@...il.com>,
	Peter Zijlstra <peterz@...radead.org>,
	Arnaldo Carvalho de Melo <acme@...stprotocols.net>,
	"linux-kernel" <linux-kernel@...r.kernel.org>
Subject: Re: [2.6.39-rc2] perf top fails to mmap - bisected to 70db7533

> > > I know you've been busy with other stuff the past few weeks, but have
> > > you had a chance to look into this? Basically, perf in 2.6.39 is broken
> > > when trying to profile a process (-p argument to record or top).
> > 
> > Let me take a look at this.
> 
> Below patch fixes the same problem on my box.
> Could you have a try it?

i have done some quick tests with this patch applied on linus/master ... works 
fine for me, thanks a lot!

> >From 89f1ab02cd8da55f8829b2f2d7e700fdae77b3af Mon Sep 17 00:00:00 2001
> 
> From: Lin Ming <ming.m.lin@...el.com>
> Date: Sat, 23 Apr 2011 14:54:33 +0000
> Subject: [PATCH] perf: Allow set output event for task in the same thread
> group
> 
> Signed-off-by: Lin Ming <ming.m.lin@...el.com>

Tested-by: Tim Blechmann <tim@...ngt.org>

cheers, tim

-- 
tim@...ngt.org
http://tim.klingt.org

When you open windows, bugs get in.

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