linux-kernel - Re: [Bug 7505] Linux-2.6.18 fails to boot on AMD64 machine

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Date:	Fri, 22 Dec 2006 16:42:34 +0100
From:	Ard -kwaak- van Breemen <ard@...egraafnet.nl>
To:	Andrew Morton <akpm@...l.org>
Cc:	"Zhang, Yanmin" <yanmin.zhang@...el.com>,
	Chuck Ebbert <76306.1226@...puserve.com>,
	Yinghai Lu <yinghai.lu@....com>, take@...ero.it,
	agalanin@...a.ru, linux-kernel@...r.kernel.org,
	bugme-daemon@...zilla.kernel.org,
	"Eric W. Biederman" <ebiederm@...ssion.com>
Subject: Re: [Bug 7505] Linux-2.6.18 fails to boot on AMD64 machine

On Fri, Dec 22, 2006 at 03:41:34PM +0100, Ard -kwaak- van Breemen wrote:
> Repeating: I am very stupid, so I don't know if saving the irq state is ok or
> not in down_read.
The Andrew Morton patch but the rewritten for down_read makes the
symptoms go away.

The problem obviously is that the ide_setup pokes the pci
subsystem way too early.
Parsing of the ide parameters should be delayed until the next
run of parse_args I guess.

View attachment "rwsem-spinlock.patch" of type "text/plain" (810 bytes)