bge0 watchdog timeout

[Vivek Khera]

Twice today during very heavy network I/O (dumping a large postgres 
database over the ethernet to another machine on the same switch) I got 
this error:

Mar 22 03:42:22 d01 kernel: bge0: watchdog timeout -- resetting
Mar 22 10:28:24 d01 kernel: bge0: watchdog timeout -- resetting

The most informative info I found searching google was this one:
http://unix.derkeiler.com/Mailing-Lists/FreeBSD/net/2003-08/0096.html

However, that seems to imply that a 5.4-PRERELEASE build March 15 would 
not be caused by this particular bug.  The dmesg says this of bge0:

bge0: <Broadcom BCM5704C Dual Gigabit Ethernet, ASIC rev. 0x2003> mem 
0xfc9b0000-0xfc9bffff,0xfc9c0000-0xfc9cffff irq 24 at device 9.0 on 
pci3
miibus0: <MII bus> on bge0
bge0: Ethernet address: 00:e0:81:2a:ac:5e


Any insights on where to look?  This is a dual Opteron running 
FreeBSD/amd64 with 4GB disk.

The only thing funny I did was build with CPUTYPE=opteron 
optimizations.  I'm rebuilding right now without that, but I've also 
cvsup'd the sources...  This is my SWAG as to the problem.

Anyone else still experiencing these timeouts?

Vivek Khera, Ph.D.
+1-301-869-4449 x806