linux-kernel - Re: Linux 2.6.38-rc1 doesn't boot

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Message-ID: <4D39A621.7080007@intel.com>
Date:	Fri, 21 Jan 2011 07:28:33 -0800
From:	"H. Peter Anvin" <h.peter.anvin@...el.com>
To:	"Li, Shaohua" <shaohua.li@...el.com>
CC:	Ingo Molnar <mingo@...e.hu>,
	Markus Trippelsdorf <markus@...ppelsdorf.de>,
	"Lu, Hongjiu" <hongjiu.lu@...el.com>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Sam Ravnborg <sam@...nborg.org>
Subject: Re: Linux 2.6.38-rc1 doesn't boot

On 01/20/2011 11:18 PM, Li, Shaohua wrote:
>  		*(.jiffies)
>  	}
>  	jiffies = VVIRT(.jiffies);
> +	jiffies_64 = jiffies;
>  

OK, this is just messed up.  If we need jiffies in a special section
then we should declare it as such (see __jiffy_data), but it's not clear
to me why we would.  This seems like hack upon hack.

However, I suspect we may want to put jiffies into a .S file, and that
.S file needs to take into account architectures which need underscore
prefixes (which really sucks to have in ELF and is a major fail on those
ABI designers...)

	-hpa
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