Subject: Re: Serious SCB Timeout problems in 2.0.2 on Alpha w/ fxp devices
To: None <tech-kern@netbsd.org>
From: Christos Zoulas <christos@astron.com>
List: tech-kern
Date: 06/26/2005 19:22:18
In article <20050626063816.GV2121@azeotrope.org>,
Dave Huang  <khym@azeotrope.org> wrote:
>On Sat, Jun 25, 2005 at 08:41:38PM -0700, Stephen Jones wrote:
>> I've submitted a bug report in hopes that we can get this fixed. Is
>> anyone currently looking on this? What changed from 1.6.2 to 2.0.2
>> that would cause the race condition that produces this symptom?
>> Should I hire a NetBSD developer to fix this since Alpha is consider
>> a tier 2 platform now? This probably isn't going to be a driver fix
>> as the driver seems to be the same code as in 1.6.2.
>
>Hmm, I'm not familiar with that... I've been running an fxp on my
>AlphaPC 164 for years and haven't noticed any problems. Is this
>problem something new to 2.0.2, but not in 2.0?
>
>NetBSD 2.0 (YERFABLE) #214: Sun Dec 12 07:15:04 CST 2004
>       
>khym@yerfable.azeotrope.org:/usr2/obj.alpha/sys/arch/alpha/compile/YERFABLE
>Digital AlphaPC 164 500 MHz, s/n
>[ ... ]
>fxp0 at pci0 dev 5 function 0: Intel i82557 Ethernet, rev 1
>fxp0: interrupting at eb164 irq 2
>fxp0: Ethernet address 00:a0:c9:13:61:7e
>nsphy0 at fxp0 phy 1: DP83840 10/100 media interface, rev. 0
>nsphy0: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto

Maybe it is the amount of traffic that is different? I.e. How much
traffic do you push through the interface daily?

christos