Subject: Re: perf backtraces off-by-1
From: Peter Zijlstra <a.p.zijlstra@chello.nl>
To: Arun Sharma <asharma@fb.com>
Cc: LKML <linux-kernel@vger.kernel.org>, Jiri Olsa <jolsa@redhat.com>,
        Arnaldo Carvalho de Melo <acme@ghostprotocols.net>,
        Benjamin Redelings <benjamin.redelings@nescent.org>,
        Corey Ashford <cjashfor@linux.vnet.ibm.com>,
        Cyrill Gorcunov <gorcunov@openvz.org>,
        "Frank Ch. Eigler" <fche@redhat.com>,
        Frederic Weisbecker <fweisbec@gmail.com>, Ingo Molnar <mingo@elte.hu>,
        Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>,
        Paul Mackerras <paulus@samba.org>,
        Robert Richter <robert.richter@amd.com>,
        Stephane Eranian <eranian@google.com>,
        Tom Zanussi <tzanussi@gmail.com>, Ulrich Drepper <drepper@gmail.com>
In-Reply-To: <5037FC9F.3090603@fb.com>
References: <5037FC9F.3090603@fb.com>
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Date: Sun, 26 Aug 2012 18:10:15 +0200
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On Fri, 2012-08-24 at 15:13 -0700, Arun Sharma wrote:
> 
> Wondering if this has been discussed before.

Not that I can recall.

>  One option is to support 
> this for user mode only, with code to detect signal frames. Any other
> ideas?
> 
I guess we'd need to see what that patch would look like... :-)

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