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Cc: freebsd-stable@freebsd.org
Subject: Re: watchdog network card
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Hi,

-cut-
>  > I thought getting latest nfe source will help but it doesn't.
>  > 
>   
-cut-
>  > 
>  > nfe0: watchdog timeout (missed Tx interrupts) -- recovering
>  > 
>
> According to the above message, it seems that you use new nfe(4). :-)
>   
Yes this is is with latest nfe, but I've got watchdog timeouts with 
previous version of this driver too.
>  > interrupt                          total       rate
>  > irq1: atkbd0                        6660          0
>  > irq12: psm0                       153054          0
>  > irq15: ata1                       778797          1
>  > irq16: pcm0                      2735727          7
>  > irq17: skc0                    115669786        296
>  > irq18: nvidia0                  24802500         63
>  > irq21: ohci0+                    2418887          6
>  > irq22: nfe0 ehci0               92319117        236
>           ^^^^^^^^^^
> You are using shared interrut so it's possible to get occasional
> watchdog timeouts. polling(4) should fix your issue here.
>   
I'll try this, and test :), It wasn't hard to generate generate watchdog 
timeout.
But isn't polling bad under heavy load and busy CPU(s) ?

>  > cpu0: timer                    780827522       2000
>  > Total                         1019712050       2612
>  > 
>  > FreeBSD 6.2-STABLE i386
>  > 
>  > nfe0: <NVIDIA nForce4 CK804 MCP9 Networking Adapter> port 0xb000-0xb007 
>  > mem 0xd5000000-0xd5000fff irq 22 at device 10.0 on pci0
>  > 
>
> nfe(4) should be teached to use MSI/MSI-X for PCI-Express/PCI-X based
> adapters but it's not done yet.
>
>