kern/69879: sk0 hangs moving lots of data

[Clint Olsen]

On Aug 21, John-Mark Gurney wrote:
> State-Changed-Why: 
> reporter confirms that there are no hangs on 6.0-CURRENT (aka HEAD), I plan
> to back port the LOR patches to RELENG_5_3 (w/ re@'s blessings of course)..

Unfortunately, I just saw this problem _again_ on my 5.3-BETA1 system,
which was supposedly branched after the patches were applied to
6.0-CURRENT.  This time, I was unable to bring the interface back up (using
ifconfig sk0 down; ifconfig sk0 up).  It required a reboot.

FreeBSD belle.0lsen.net 5.3-BETA1 FreeBSD 5.3-BETA1 #5: Wed Aug 25 20:02:06
PDT 2004     root at belle.0lsen.net:/usr/obj/usr/src/sys/GENERIC  i386

I was running the file sharing utility gtk-gnutella when it happened as
well as VNC.

-Clint