linux-kernel - Re: 2.6.27-rc8+

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Message-ID: <20081007034230.GA6095@amd.corenet.prv>
Date:	Mon, 6 Oct 2008 23:42:35 -0400
From:	Dmitry Torokhov <dmitry.torokhov@...il.com>
To:	Andreas Herrmann <andreas.herrmann3@....com>
Cc:	Ingo Molnar <mingo@...e.hu>, Thomas Gleixner <tglx@...utronix.de>,
	Arjan van de Ven <arjan@...radead.org>,
	linux-kernel@...r.kernel.org
Subject: Re: 2.6.27-rc8+ - first impressions

On Mon, Oct 06, 2008 at 09:53:50PM +0200, Andreas Herrmann wrote:
> On Mon, Oct 06, 2008 at 02:28:39AM -0400, Dmitry Torokhov wrote:
> > On Sun, Oct 05, 2008 at 12:10:46PM -0700, Arjan van de Ven wrote:
> > > On Sun, 5 Oct 2008 14:36:25 -0400
> > > Dmitry Torokhov <dmitry.torokhov@...il.com> wrote:
> > > 
> > > > Hi,
> > > > 
> > > > Lats night I loaded 2.6.27-rc8-tip for the first time on my AMD Turion
> > > > 64 laptop that is normally runs with Fedora distribution kernel.
> > > > Compared to 2.6.25 the thing is broken - hdparm reports about 3MB/sec
> > > > speed, fans are constantly on, everything seems sluggish.
> > > > 
> > > > Booting with hpet=force (HPET is disabled in BIOS) hangs the box
> > > > somewhere in tty_init.
> > > 
> > > hpet=force is a "the kernel thinks it's not wise to use, but you think
> > > better"... don't do that ;(
> > > 
> > 
> > That is not how I parse dmesg:
> > 
> > [    0.077927] HPET not enabled in BIOS. You might try hpet=force boot
> > option
> > 
> > Here kernel recommends to try and enable it. If we generally don't recommed
> > using 'force' I'd suggest removing the 2nd sentence from the message.
> 
> FYI.
> Commit e7250b8ae3870f37f660c2f65cafcaba85e3bfd3 of tip/master is
> needed to really enable hpet on SB400. I guess that patch should go
> upstream asap -- and probably it's a good idea to add a check for timer
> interrupt routing as well which could solve the issues on HP nx6xxx
> laptops.
> 

Having trouble locating this one. Could you please send me a patch so I
can try it here? Thanks!

-- 
Dmitry
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