Re: [PATCH 7/7] sparc64: Add function graph tracer support.

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From: Frederic Weisbecker <fweisbec@xxxxxxxxx>
Date: Sat, 17 Apr 2010 19:22:21 +0200

> I tested the following patch and it fixes the issue after several
> manual loops of:

Wait, this is completely normal.

NMIs can come in at any time and nmi_enter() emits a trace via the
rcu_nmi_enter().

This happens on x86 too.
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