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Date: Fri, 02 Mar 2012 11:47:54 -0700
From: David Ahern <dsahern@gmail.com>
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To: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
CC: Ingo Molnar <mingo@elte.hu>, LKML <linux-kernel@vger.kernel.org>
Subject: no build option fails in kerneltip
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Hi Arnaldo:

I noticed this patch is not in Linus' tree or your perf-urgent (only 
your perf-core): https://lkml.org/lkml/2012/2/6/415

Yet, the problem is in Linus' tip:

$ /tmp/pbuild/perf record -a -BN -- sleep 1
Couldn't generating buildids. Use --no-buildid to profile anyway.
sleep: Terminated

$ /tmp/pbuild/perf --version
perf version 3.3.rc5.60.g203738

David