linux-kernel - Re: Random scheduler/unaligned accesses crashes with perf lock events on sparc 64

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Message-Id: <20100406.141744.17264255.davem@davemloft.net>
Date:	Tue, 06 Apr 2010 14:17:44 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	rostedt@...dmis.org
Cc:	srostedt@...hat.com, fweisbec@...il.com,
	sparclinux@...r.kernel.org, linux-kernel@...r.kernel.org,
	mingo@...e.hu, acme@...hat.com, a.p.zijlstra@...llo.nl,
	paulus@...ba.org
Subject: Re: Random scheduler/unaligned accesses crashes with perf lock
 events on sparc 64

From: Steven Rostedt <rostedt@...dmis.org>
Date: Tue, 06 Apr 2010 14:15:58 -0400

> On Tue, 2010-04-06 at 10:46 -0700, David Miller wrote:
>> Just fix the CPP test to handle 32-bit platforms with slow
>> mis-alignment handling, everything else seems to be working properly
>> after I fixed the NMI issues on sparc64.
> 
> A little more work will need to be done since on 32bit, the page headers
> are 12 bytes, not 16, so we start off without being aligned 8bytes. But
> that too is fixable.

Oh yeah the buffer_data_page, good point.
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