misc/72183: em driver em_intr doesn't start send if pending packets

[Robert Watson]

Synopsis: em driver em_intr doesn't start send if pending packets

Responsible-Changed-From-To: freebsd-bugs->mlaier
Responsible-Changed-By: rwatson
Responsible-Changed-When: Thu Sep 30 00:27:43 GMT 2004
Responsible-Changed-Why: 
This patch looks almost identical to a patch committed by mlaier this
afternoon in response to the presumably identical realization.

FWIW, I can reproduce this problem relatively easily in my test
environment, and a couple of us have been performing intermittent
head-against-wall banging for the last few weeks wondering what was
happening.


http://www.freebsd.org/cgi/query-pr.cgi?pr=72183