linux-kernel - Re: [PATCH] mm,x86: initialize high mem before free_all

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Message-ID: <20111206082555.GA28314@elte.hu>
Date:	Tue, 6 Dec 2011 09:25:55 +0100
From:	Ingo Molnar <mingo@...e.hu>
To:	Stanislaw Gruszka <sgruszka@...hat.com>
Cc:	linux-mm@...ck.org, x86@...nel.org, linux-kernel@...r.kernel.org,
	Mel Gorman <mgorman@...e.de>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Ingo Molnar <mingo@...hat.com>,
	"H. Peter Anvin" <hpa@...or.com>,
	Thomas Gleixner <tglx@...utronix.de>
Subject: Re: [PATCH] mm,x86: initialize high mem before free_all_bootmem()


* Stanislaw Gruszka <sgruszka@...hat.com> wrote:

> Patch fixes boot crash with my previous patch "mm,x86: remove
> debug_pagealloc_enabled" applied:

Great, thanks - i've started testing of your pagealloc 
restoration patch again.

> Would be good to apply this patch before "mm,x86: remove 
> debug_pagealloc_enabled" to prevent problem be possibly 
> observable during bisection.

Yep, applied them in that order.

The thing is, the pagealloc bug you fixed basically kept 
pagealloc debugging essentially disabled for a really long time, 
correct? So i'd expect there to be quite a few latent problems - 
i'll give it some more testing before pushing out the result.

Thanks,

	Ingo
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