linux-kernel - Re: 2.6.23-rc6-mm1: failure to boot on HP nx6325, no sound when booted, USB-related WARNING

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Message-ID: <20071011211949.GA4151@ucw.cz>
Date:	Thu, 11 Oct 2007 21:19:49 +0000
From:	Pavel Machek <pavel@....cz>
To:	Thomas Gleixner <tglx@...utronix.de>
Cc:	Paul Mackerras <paulus@...ba.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	"Rafael J. Wysocki" <rjw@...k.pl>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Jaroslav Kysela <perex@...e.cz>, Takashi Iwai <tiwai@...e.de>,
	linux-usb-devel@...ts.sourceforge.net,
	Venkatesh Pallipadi <venkatesh.pallipadi@...el.com>,
	Ingo Molnar <mingo@...e.hu>, miklos@...redi.hu,
	Len Brown <len.brown@...el.com>,
	David Shaohua Li <shaohua.li@...el.com>
Subject: Re: 2.6.23-rc6-mm1: failure to boot on HP nx6325, no sound when booted, USB-related WARNING

On Fri 2007-09-21 10:06:15, Thomas Gleixner wrote:
> On Fri, 2007-09-21 at 14:51 +1000, Paul Mackerras wrote:
> > Linus Torvalds writes:
> > 
> > > It would indeed be nice if we could just take CPU's down early (while 
> > > everything is working), and run the whole suspend code with just one CPU, 
> > > rather than having to worry about the ordering between CPU and device 
> > > takedown.
> > 
> > That is certainly what we want to do on powerpc.
> 
> I would have expected that we do it exactly this way and it took me by
> surprise, that we do not.

Well, we used to do that, but acpi spec forbids that, and it means
userspace sees plugs/unplugs.
						Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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