linux-kernel - Re: [PATCH] x86: ioremap ram check fix

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Message-ID: <20080430181015.GB31726@elte.hu>
Date:	Wed, 30 Apr 2008 20:10:15 +0200
From:	Ingo Molnar <mingo@...e.hu>
To:	Andres Salomon <dilinger@...ued.net>
Cc:	Thomas Gleixner <tglx@...utronix.de>,
	"H. Peter Anvin" <hpa@...or.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] x86: ioremap ram check fix


* Andres Salomon <dilinger@...ued.net> wrote:

> Hi Ingo,
> 
> bdd3cee2e4b7279457139058615ced6c2b41e7de (x86: ioremap(), extend check 
> to all RAM pages) breaks OLPC's ioremap call.  The ioremap that OLPC 
> uses is:

that breakage has been reported independently as well and the revert has 
been pushed to Linus yesterday - it's not upstream yet. See this commit 
in x86.git:

 commit 1b8104a0ec138de829bb351f6597d534c7c134dc
 Author: Ingo Molnar <mingo@...e.hu>
 Date:   Tue Apr 29 12:04:51 2008 +0200

    revert: "x86: ioremap(), extend check to all RAM pages"

    Vegard Nossum reported a large (150 seconds) boot delay during bootup,
    and bisected it to "x86: ioremap(), extend check to all RAM pages"
    (commit bdd3cee2e4b). Revert this commit for now.

    Bisected-by: Vegard Nossum <vegard.nossum@...il.com>
    Signed-off-by: Ingo Molnar <mingo@...e.hu>

	Ingo
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