From mboxrd@z Thu Jan  1 00:00:00 1970
From: Andi Kleen <ak@linux.intel.com>
Subject: Re: PEBS level 2/3 breaks dwarf unwinding! [WAS: Re: Broken dwarf
 unwinding - wrong stack pointer register value?]
Date: Tue, 6 Nov 2018 12:24:11 -0800
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To: Milian Wolff <milian.wolff@kdab.com>
Cc: Jiri Olsa <jolsa@redhat.com>, linux-kernel@vger.kernel.org, Jiri Olsa <jolsa@kernel.org>, namhyung@kernel.org, linux-perf-users@vger.kernel.org, Arnaldo Carvalho <acme@kernel.org>
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> Where would I look for the source to change here? So far, I only concentrated 
> on the userspace side of perf in tools/perf.

Kind of similar to 

a405bad5ad20 perf/x86: Add Haswell specific transaction flag reporting
fdfbbd07e91f perf: Add generic transaction flags

Report the original (not overwritten) regs->ip and regs->sp

-Andi