linux-kernel - Re: perf_fuzzer compiled for x32 causes reboot

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Message-ID: <53112D3B.40807@zytor.com>
Date:	Fri, 28 Feb 2014 16:43:39 -0800
From:	"H. Peter Anvin" <hpa@...or.com>
To:	Vince Weaver <vincent.weaver@...ne.edu>,
	Steven Rostedt <rostedt@...dmis.org>
CC:	Peter Zijlstra <peterz@...radead.org>,
	Linux Kernel <linux-kernel@...r.kernel.org>,
	Ingo Molnar <mingo@...hat.com>
Subject: Re: perf_fuzzer compiled for x32 causes reboot

On 02/28/2014 03:34 PM, Vince Weaver wrote:
> 
> Well while it might appear that I spend all of my days finding perf_event 
> bugs, I actually am a college professor so I do occasionally have to run 
> off to teach a class, meet with students, or write papers/grants for other 
> academics to reject.
> 

We really appreciate your help.  This has been really critical.

>
> It's nice others can reproduce the issue now, it would have saved me a lot 
> of trouble, although now in theory I have a much better handle of how to 
> use/abuse ftrace so I guess it was worth it.
> 
> Once the fix gets into git I'm sure the relentless perf_fuzzer will let us 
> know if there are any other issues left.  I do look forward to the day 
> when I can leave it running overnight and have a clean syslog the next 
> morning.
> 

We all do, definitely, and your help has been a huge step in that direction.

	-hpa


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