linux-kernel - Re: [patch] tip/x86_64: fix e820 merge issue which broke max_pfn

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Message-ID: <20080709184405.GH1678@linux-os.sc.intel.com>
Date:	Wed, 9 Jul 2008 11:44:06 -0700
From:	Suresh Siddha <suresh.b.siddha@...el.com>
To:	Jeremy Fitzhardinge <jeremy@...p.org>
Cc:	Yinghai Lu <yhlu.kernel@...il.com>,
	"Siddha, Suresh B" <suresh.b.siddha@...el.com>,
	"mingo@...e.hu" <mingo@...e.hu>, "hpa@...or.com" <hpa@...or.com>,
	"tglx@...utronix.de" <tglx@...utronix.de>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [patch] tip/x86_64: fix e820 merge issue which broke max_pfn_mapped

On Wed, Jul 09, 2008 at 11:11:36AM -0700, Jeremy Fitzhardinge wrote:
> Yinghai Lu wrote:
> > try to reduce #ifdef CONFIG_X86_64/32, and make 32/64 at the same page.
> >
> > could be some regression from early_io_remap unifying from jeremy
> >
> > please check attached revert patch.
> 
> Could my patch "x86_64: there's no need to preallocate
> level1_fixmap_pgt" be a problem in itself?  It seems sound to me, but

Yep. Reverting it made my system with 2GB memory boot fine again.

> none of my other code has any functional dependency on it; it's really
> just cosmetic.

have you test booted it before making this cosmetic change? :)

thanks,
suresh
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