Date: Fri, 28 Feb 2014 09:15:33 -0500 (EST)
From: Vince Weaver <vincent.weaver@maine.edu>
To: Steven Rostedt <rostedt@goodmis.org>
cc: Vince Weaver <vincent.weaver@maine.edu>, "H. Peter Anvin" <hpa@zytor.com>,
        Peter Zijlstra <peterz@infradead.org>,
        Linux Kernel <linux-kernel@vger.kernel.org>,
        Ingo Molnar <mingo@redhat.com>
Subject: Re: perf_fuzzer compiled for x32 causes reboot
In-Reply-To: <20140227215726.7018c861@gandalf.local.home>
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On Thu, 27 Feb 2014, Steven Rostedt wrote:

> On Thu, 27 Feb 2014 20:34:34 -0500 (EST)
> Vince Weaver <vincent.weaver@maine.edu> wrote:
> 
> 
> > > I would actually suggest we do the equivalent on i386 as well.
> > > 
> > > Vince, could you try this patch as an experiment?
> > 
> > OK with your patch applied it does not segfault.
> > 
> 
> Vince, Great! Can you remove Peter's patch, and try this one. It
> removes the crud to save the cr2 from entry_64.S and makes both i386
> and x86_64 do the same thing in regards to cr2 handling.

no, with only this patch applied it segfaults as per previous:

[  126.396049] perf_fuzzer[2904]: segfault at 17a0 ip 00000000004017fd sp 00000000ffaff3f0 error 6 in perf_fuzzer[400000+d1000]

Vince
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