Problems with em interfaces on FreeBSD 6.1

[Pyun YongHyeon]

On Thu, Aug 17, 2006 at 09:45:50AM +0200, Daniel Ryslink wrote:
 > 
 > Hello,
 > 
 > Thank you very much for your assistance.
 > 
 > I am happy to report that we have been able to fix this problem. I just 
 > wanted to wait a day or two to be sure that it won't resurface again.
 > 
 > The last steps we did were:
 > 
 > 1) Upgrade SuperMicro SS5015M-T BIOS from version 1.1 to version 1.1a
 > 2) Inclusion of 'debug.mpsafenet=0' into /boot/loader.conf suggested in 
 > this mailing list.
 > 
 > I would guess that the step 2 was what really solved the problem.
 > 

Hmm... I'd like to know whether my patch help or not.
Step 2 you mentioned is not the way to go. We're trying very hard to
remove giant locks in every places on FreeBSD. 

 > Best Regards
 > Daniel Ryslink
 > 
 > On Thu, 17 Aug 2006, Pyun YongHyeon wrote:
 > 
 > >On Fri, Aug 11, 2006 at 10:06:00AM +0200, Daniel Ryslink wrote:
 > >>
 > >> Hello,
 > >>
 > >> We have currently upgraded one of our routers to Gigabit connectivity and
 > >> FreeBSD 6.1 Release.
 > >>
 > >> The hardware is Supermicro SuperServer 5015M-T  - we have tried both the
 > >> integrated NIC and yet another external Intel NIC - specifically
 > >>
 > >> Intel PRO/1000 MT Dual Port Server Adapter
 > >> PWLA8492MT
 > >>
 > >> The problem is that several times a day, the following appears in
 > >> messages:
 > >>
 > >> Aug 11 08:41:44 b2 kernel: em0: watchdog timeout -- resetting
 > >>
 > >> accompanied with a loss of connectivity lasting for several seconds.
 > >>
 > >> We have tried using both the default driver that came with the FreeBSD
 > >> installation as well as the newest driver from Intel dated 2th April 2006
 > >> compiled as a module, but the problem still persists.
 > >>
 > >> If anyone encountered the problem and has a solution, I would be very
 > >> grateful.
 > >>
 > >
 > >Because I can't reproduce it here and I failed to find a possible
 > >cause of the issue.
 > >As a last resort would you give attached patch a try?
 > >The patch was generated against latest stable.
 > >
 > >-- 
 > >Regards,
 > >Pyun YongHyeon
 > >

-- 
Regards,
Pyun YongHyeon