linux-kernel - Re: [PATCH] Replace nvidia timer override quirk with pci id list

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Message-Id: <200802092213.30814.prakash@punnoor.de>
Date:	Sat, 9 Feb 2008 22:13:30 +0100
From:	Prakash Punnoor <prakash@...noor.de>
To:	Gene Heskett <gene.heskett@...il.com>
Cc:	Andi Kleen <andi@...stfloor.org>, mingo@...e.hu,
	tglx@...utronix.de, lenb@...nel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] Replace nvidia timer override quirk with pci id list

On the day of Saturday 09 February 2008 Gene Heskett hast written:
> On Saturday 09 February 2008, Prakash Punnoor wrote:
> >On the day of Saturday 09 February 2008 Gene Heskett hast written:
> >> This has killed me both at boot time twice, once before NASH was
> >> running, and several times when uptimes were a day plus, but has never
> >> reappeared since the first time I used the acpi_user_timer_override
> >> argument, and this includes several boots without it including 2
> >> complete, 2 or 3 minute power downs.
> >
> >Are you saying that on your nforce2 you need the override
> >(acpi_use_timer_override) to have a stable system? Because that would be
> > in contrast to all previous findings regarding nforce2. Could you provide
> >
> >cat /proc/interrupts
> >lspci
> >lspci -n
>
> Currently booted with it, uptime 38 hours, only diff visible is in dmesg as
> has been posted here in another thread.
>
> [root@...ote ~]# cat /proc/interrupts
>            CPU0
>   0:        869    XT-PIC-XT        timer
>   1:         18   IO-APIC-edge      i8042

Thanks for providing the info. According to the IDs your and my board are 
quite alike. If you don't pass acpi_use_timer_override to vanilla kernel, 
does your timer get connected to IO-APIC? Ie:

           CPU0
  0:      47834   IO-APIC-edge      timer

In this mode, is your board stable? I never run my hw longer than 10h, so I 
cannot say anything about long-term stability, but lately my nforce2 didn't 
make any troubles and (when it did, it usally was related to PSU). I am 
skipping the override, ie. my timer is connected to IO-APIC.

If in the latter mode your hw is instable, we have a problem...
-- 
(°=                 =°)
//\ Prakash Punnoor /\\
V_/                 \_V

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