kern/144680: em(4) problem with dual-port adapter

[Garrett Cooper]

The following reply was made to PR kern/144680; it has been noted by GNATS.

From: Garrett Cooper <yanefbsd at gmail.com>
To: Pavel Argentov <argentoff at rtelekom.ru>
Cc: freebsd-gnats-submit at freebsd.org
Subject: Re: kern/144680: em(4) problem with dual-port adapter
Date: Fri, 12 Mar 2010 14:13:47 -0800

 On Fri, Mar 12, 2010 at 12:25 AM, Pavel Argentov <argentoff at rtelekom.ru> wr=
 ote:
 >
 >>Number: =A0 =A0 =A0 =A0 144680
 >>Category: =A0 =A0 =A0 kern
 >>Synopsis: =A0 =A0 =A0 em(4) problem with dual-port adapter
 >>Confidential: =A0 no
 >>Severity: =A0 =A0 =A0 serious
 >>Priority: =A0 =A0 =A0 medium
 >>Responsible: =A0 =A0freebsd-bugs
 >>State: =A0 =A0 =A0 =A0 =A0open
 >>Quarter:
 >>Keywords:
 >>Date-Required:
 >>Class: =A0 =A0 =A0 =A0 =A0sw-bug
 >>Submitter-Id: =A0 current-users
 >>Arrival-Date: =A0 Fri Mar 12 08:30:07 UTC 2010
 >>Closed-Date:
 >>Last-Modified:
 >>Originator: =A0 =A0 Pavel Argentov
 >>Release: =A0 =A0 =A0 =A07.2-RELEASE
 >>Organization:
 > Ratmir-TeleKom, Ltd.
 >>Environment:
 > FreeBSD pptp-2.rtelekom.ru 7.2-RELEASE-p3 FreeBSD 7.2-RELEASE-p3 #0: Thu =
 Feb 25 08:27:41 MSK 2010 =A0 =A0 root at pptp-new.rtelekom.ru:/usr/src/sys/i38=
 6/compile/PPTP =A0i386
 >>Description:
 > The problem appears when using Intel PRO/1000 MT Dual Port Server Adapter=
  (separate card, not motherboard integrated) in dual-port mode.
 >
 > When I boot the system without ethernet connection or with only one port =
 plugged the driver starts as usual and works with no problem. But if I conn=
 ect both ports the driver gives this message:
 
 [...]
 
 > em1: Memory Access and/or Bus Master bits were not set!
 
 [...]
 
 Just stating the obvious, these messages look like they're a good
 start to look into the issue you're seeing.
 Thanks,
 -Garrett