network slowness/freez-up since update 10/11
Robert Watson
rwatson at freebsd.org
Thu Oct 14 06:09:46 PDT 2004
On Thu, 14 Oct 2004, Ian FREISLICH wrote:
> I have a
>
> de0: <Digital 21041 Ethernet> port 0xe800-0xe87f mem 0xea001000-0xea00107f irq 17 at device 9.0 on pci0
> de0: [GIANT-LOCKED]
> de0: DEC DE450-CA 21041 [10Mb/s] pass 1.1
> de0: Ethernet address: 00:00:f8:30:dd:c2
> de0: if_start running deferred for Giant
>
> that is no longer in use. If it will be of help, I'll mail it to you
> (you'll need to give me your shipping address).
I actually have an if_de card on my desk, thanks to Mark Murray who
dropped it off a couple of days ago, but no computer to put it in. I just
moved to Cambridge, UK from Washington, DC, and have only notebooks with
me. As far as I know, no pccard form factor if_de cards were ever made,
although I'm willing to be corrected on that point, and accept one
willingly :-). I'm doing most testing on a remotely administered test
cluster, so maybe the answer is to get it shipped there to put in a box.
I'm beginning to wonder if the race isn't that the if_de interrupt thread
runs between the point where a packet is queued for the interface and the
if_start runs out of a task queue. I'm still making may way through the
if_de driver to understand how it all fits together, however.
Robert N M Watson FreeBSD Core Team, TrustedBSD Projects
robert at fledge.watson.org Principal Research Scientist, McAfee Research
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