From: David Miller <davem@davemloft.net>
Date: Mon, 05 Apr 2010 20:46:47 +0000
Subject: Re: Random scheduler/unaligned accesses crashes with perf lock
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To: fweisbec@gmail.com
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From: Frederic Weisbecker <fweisbec@gmail.com>
Date: Mon, 5 Apr 2010 21:40:58 +0200

> It happens without CONFIG_FUNCTION_TRACER as well (but it happens
> when the function tracer runs). And I hadn't your perf_arch_save_caller_regs()
> when I triggered this.

Good clues, thanks.