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Re: perf,ftrace: fuzzer triggers warning in trace_events_filter code

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  Re: perf,ftrace: fuzzer triggers warning in trace_events_filter  code Vince Weaver <vincent.weaver@maine.edu> - 2015-06-13 03:10 +0200

#1164507 — Re: perf,ftrace: fuzzer triggers warning in trace_events_filter code

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
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