linux-kernel - AVR32: nmi_enter() without nmi

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Message-ID: <48AC1EAF.9040906@colorfullife.com>
Date:	Wed, 20 Aug 2008 15:39:59 +0200
From:	Manfred Spraul <manfred@...orfullife.com>
To:	hskinnemoen@...el.com
CC:	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: AVR32: nmi_enter() without nmi_exit()

Hi Haavard,

You are listed as the maintainer for AVR32. If someone else is doing 
that now, could you forward the mail?

While updating the rcu code, I noticed that do_nmi() for AVR32 is odd:
There is an nmi_enter() call without an nmi_exit().
This can't be correct, it breaks rcu (at least the preempt version) and 
lockdep.

Attached is a patch, not tested at all.

--
    Manfred

View attachment "patch-avr32-nmi-exit" of type "text/plain" (615 bytes)