Subject: Re: pci latency timers on i386: universally misconfigured?
To: David Young <dyoung@pobox.com>
From: Manuel Bouyer <bouyer@antioche.eu.org>
List: port-i386
Date: 08/30/2005 20:50:49
On Mon, Aug 29, 2005 at 07:45:58PM -0500, David Young wrote:
> While seeking the cause of "ath0: hardware error; resetting" messages
> that ruin our ath0 enjoyment, I have noticed that virtually every
> i386 BIOS I can find (Tyan K6-750, Dell P4 server, Soekris net4521)
> sets values for the PCI Latency Timer that are not the least in
> accord with what I expect after reading the "PCI Latency Timer Howto"
> <http://www.google.com/search?q=cache:jIBKycx88XUJ:www.reric.net/linux/pci_latency.html+pci+latency+timer&hl=en&lr=&strip=1>.
> 
> Is there any use in running a variant of pci_configure_bus(9) on
> any/all/most i386s, in order to set sensible latency timers for a change?

This problem doesn't affect only i386, I think we should set the
latency timers on all platforms.

-- 
Manuel Bouyer <bouyer@antioche.eu.org>
     NetBSD: 26 ans d'experience feront toujours la difference
--