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From: Andi Kleen <andi@firstfloor.org>
To: Prakash Punnoor <prakash@punnoor.de>
Cc: Andi Kleen <andi@firstfloor.org>,
	mingo@elte.hu, tglx@linutronix.de, lenb@kernel.org,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH] Replace nvidia timer override quirk with pci id list
Date: Fri, 8 Feb 2008 20:01:43 +0100	[thread overview]
Message-ID: <20080208190143.GB11573@one.firstfloor.org> (raw)
In-Reply-To: <200802081839.18267.prakash@punnoor.de>

On Fri, Feb 08, 2008 at 06:39:17PM +0100, Prakash Punnoor wrote:
> On the day of Friday 08 February 2008 Andi Kleen hast written:
> > On Fri, Feb 08, 2008 at 04:13:35PM +0100, Prakash Punnoor wrote:
> 
> > > Sorry, I meant the opposite. I needed the acpi_skip_timer_override kernel
> > > parameter for nforce2, thus no override. So this chipset is missing here.
> > > At least I remember that my nforce2 needed the skipping,
> >
> > I hope you remember correctly and mean it this time. It would be better
> > if you could double check.
> 
> Yes, confirmed. timer w/o the skipping stays XT-PIC on nforce2.

Confirmed what? Did you test my patch on both machines? 
What was the result? 

> lspci -n:

Please always send lspci without -n too; I hate looking up hex codes
by hand when a computer can do that for me.

> 02:00.0 0300: 10de:0281 (rev a1)
> 
> > I'm a little sceptical because we had this patch in OpenSUSE 10.3
> > and I didn't think there were complaints from NF2 users.
> > With the changes you're requesting it turns from something
> > very well tested into something experimental.
> 
> Well, even w/o the skipping my nforce2 system wasn't unstable, AFAIK. So I 
> don't think just because of the XT-PIC entry people would complain.

Timer override only does something in APIC mode and when you see XT-PIC
in /proc/interrupts then you're not in APIC mode. All these patches
are a no-op in this state.

> See why I don't want the quirk to be applied more than needed? *NOT* applying 
> the quirk on nforce2 didn't cause any obvious side effects. APPLYING to mcp51 
> causes hard lock-ups.

Can you please just test the patches instead of speculating what they
might do or not do?

-Andi

  reply	other threads:[~2008-02-08 18:27 UTC|newest]

Thread overview: 28+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-02-07 19:55 Andi Kleen
2008-02-07 21:21 ` Prakash Punnoor
2008-02-08 11:36   ` Andi Kleen
2008-02-08 15:13     ` Prakash Punnoor
2008-02-08 15:18       ` Prakash Punnoor
2008-02-08 16:09       ` Andi Kleen
2008-02-08 17:39         ` Prakash Punnoor
2008-02-08 19:01           ` Andi Kleen [this message]
2008-02-08 19:00             ` Prakash Punnoor
2008-02-08 21:02               ` Andi Kleen
2008-02-08 23:08                 ` Prakash Punnoor
2008-02-09 11:06                   ` Thomas Gleixner
2008-02-09 12:18                     ` Prakash Punnoor
2008-02-09 11:59                   ` Andi Kleen
2008-02-09 11:53                     ` Prakash Punnoor
2008-02-09 14:31                       ` Andi Kleen
2008-02-09 15:51                         ` Prakash Punnoor
2008-02-09 16:56                           ` Andi Kleen
2008-02-09 17:30                             ` Prakash Punnoor
2008-02-09 12:17                   ` [PATCH] Replace nvidia timer override quirk with pci id list II Andi Kleen
2010-01-29  8:32               ` [PATCH] Replace nvidia timer override quirk with pci id list Yuhong Bao
2008-02-09 12:46           ` Gene Heskett
2008-02-09 14:18             ` Andi Kleen
2008-02-09 14:03               ` Alan Cox
2008-02-09 18:02               ` Gene Heskett
2008-02-09 18:11                 ` Prakash Punnoor
2008-02-09 20:05                   ` Gene Heskett
2008-02-09 21:13                     ` Prakash Punnoor

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