Problem with FreeBSD 6 -STABLE and Dell PowerEdge 2850 spewing arp requests

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Date: Sat, 26 Nov 2005 02:12:07 -0800
To: freebsd-questions@freebsd.org

Hi All,

I have a problem with FreeBSD 6 -Stable, i built the machine with
-RELEASE and it's been running fine for the last few weeks.. Today i
tryed to make the jump to -STABLE by running cvsup on the RELENG_6
branch, running makebuildworld/kernel
which built fine without any errors.. upon the first reboot the machine
did not come back up.. I went down to the data centre where the machine
is COLO'd and saw the machine did boot the new kernel.. it just has no
network connectivity..

The Machine is a Dell PowerEdge 2850, Raid 1 volume on the Perc4i
controller.. there are 2 Intel 1000BT adaptors.. i poked around making
sure there were no errors in the syslog etc.. the machine comes up fine
as mentioned...
and the only odd thing i found was 1) in the output of ps -aux there was
over 100 IRQ's listed.. and 2) the network adapter is puking arp
requests flooding the local network..

With no fix in sight i re-installed the source and base binary's from
the installer which fixed the problem as the machine was back at
-RELEASE.. it worked great.. i thought at first i may have had left over
files in /usr/obj but from what i thought that should not affect the
kernel build/install.. regardless i followed the handbook and removed
the /usr/obj/usr dir and ran cvsup again to get the -STABLE source.. i
ran make cleandir and started the process over again..
and once again after the kernel install the machine loses it's
networking capabilities and starts spewing Arp requests...

Could anyone offer any insight?

Sorry about not having a dmesg but i dont have access to the machine at
the moment as it's dead :P

Thanks

Rob.

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