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From: Vince Weaver <vincent.weaver@maine.edu>
To: Steven Rostedt <rostedt@goodmis.org>
Cc: linux-kernel@vger.kernel.org,
	Peter Zijlstra <a.p.zijlstra@chello.nl>,
	Ingo Molnar <mingo@redhat.com>,
	Arnaldo Carvalho de Melo <acme@kernel.org>
Subject: Re: perf,ftrace: fuzzer triggers warning in trace_events_filter code
Date: Fri, 12 Jun 2015 21:15:10 -0400 (EDT)	[thread overview]
Message-ID: <alpine.DEB.2.20.1506122113580.5662@vincent-weaver-1.umelst.maine.edu> (raw)
In-Reply-To: <20150612174045.1e9b0ca0@gandalf.local.home>

On Fri, 12 Jun 2015, Steven Rostedt wrote:

> On Fri, 12 Jun 2015 17:18:22 -0400 (EDT)
> Vince Weaver <vincent.weaver@maine.edu> wrote:
> 
> > 
> > So I've modified my fuzzer to try to exercise the 
> > PERF_EVENT_IOC_SET_FILTER ioctl() and it is starting to turn up some 
> > warnings.
> 
> Is there any way to know what the filter string you used that generated
> this?

Various seem to trigger it.  One example is

	ext4:ext4_truncate_exit
	(((dev<=913)blocks==916)common_type&756)

Vince

  reply	other threads:[~2015-06-13  1:09 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-06-12 21:18 Vince Weaver
2015-06-12 21:40 ` Steven Rostedt
2015-06-13  1:15   ` Vince Weaver [this message]
2015-06-13  1:29     ` Steven Rostedt
2015-06-15 21:50     ` Steven Rostedt
2015-06-16 16:17       ` Steven Rostedt
2015-06-17  5:09         ` Vince Weaver

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