linux-kernel - perf record -g hangs the system

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Message-ID: <ff13bc9a1001210310x5ebc9993kbf6b302285d2d9a4@mail.gmail.com>
Date:	Thu, 21 Jan 2010 12:10:12 +0100
From:	Luca Barbieri <luca@...a-barbieri.com>
To:	linux-kernel@...r.kernel.org
Subject: perf record -g hangs the system

I'm experiencing a system lockup running the following command:
perf record -g true

The system hangs and does not respond to any sysrq.
No messages are printed to netconsole.

This is with 2.6.33-rc4 on an x86-32 Core 2 dual core machine.

Any tips on how to debug/fix this?
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