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Date: Thu, 24 Jun 2010 09:44:22 +0800
From: Wu Fengguang <fengguang.wu@intel.com>
To: LKML <linux-kernel@vger.kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>,
       Frederic Weisbecker <fweisbec@gmail.com>,
       Steven Rostedt <srostedt@redhat.com>
Subject: Re: perf regression: failed to stat syscalls events
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References: <20100624013915.GA16965@localhost>
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On Thu, Jun 24, 2010 at 09:39:15AM +0800, Wu Fengguang wrote:
> Greetings,
> 
> I noticed that
> 
>         # perf stat -e syscalls:sys_enter_mmap true
> 
> refuse to work on 2.6.35-rc1. The last working kernel is 2.6.34.

Other events like lock:* or block:* or whatever continue to work.
So this is a problem specific to syscalls:*.

Thanks,
Fengguang