linux-kernel - Re: [PATCH 3/5] parisc: use new macros for .data.init

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Message-ID: <20090502141308.GA28342@bombadil.infradead.org>
Date:	Sat, 2 May 2009 10:13:08 -0400
From:	Kyle McMartin <kyle@...artin.ca>
To:	Helge Deller <deller@....de>
Cc:	Tim Abbott <tabbott@....EDU>, Sam Ravnborg <sam@...nborg.org>,
	Linux kernel mailing list <linux-kernel@...r.kernel.org>,
	Anders Kaseorg <andersk@....edu>,
	Waseem Daher <wdaher@....edu>,
	Denys Vlasenko <vda.linux@...glemail.com>,
	Jeff Arnold <jbarnold@....edu>,
	Kyle McMartin <kyle@...artin.ca>, linux-parisc@...r.kernel.org
Subject: Re: [PATCH 3/5] parisc: use new macros for .data.init_task.

On Sat, May 02, 2009 at 07:13:37AM +0200, Helge Deller wrote:
> I think this patch is wrong, although it is theoretically correct.
> 
> IIRC, gcc on hppa is not able to provide an alignment >= 8k, which is
> why we have done the 16k alignment inside the linker script.
> So, I think this change will prevent the parisc kernel to boot up.
> Needs testing.
> 

I think you're confusing this with the 8-byte maximum alignment from
kmalloc and on-stack that prevents us from just using a 16-byte aligned
word as a lock on pa1.1?

The patch I trimmed from this mail looks correct to me.

regards, Kyle
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