On Fri, 13 Oct 2006, Jonathan Feally wrote:
I have a P4 2.8 box running on an intel MB with a em0 acting as a firewall.
The em0 has multiple tagged vlans on it, no ip assigned to main interface.
Almost clockwork now, 6-7 days after bootup named or dhcpd completly locks
up. I can't even kill -9 the apps. I have recompiled both apps since
upgrading. I have only made two changes to this system around the same time.
1. Removed 2nd em nic that had only 1 network connected not vlan tagged. 2.
Upgraded to 6.2-PRE
Has anyone else had these problems? I am going to try running the system
with the internet connection not tagged to see if that helps.
I've not seen this on any boxes. The usual debugging path here is to:
(1) Look at the process wait channel in ps axl.
(2) Compile KDB/DDB into the kernel, and do a kernel stack trace of the
process.
Once you know what the kernel thread associated with the process is doing, we
can attempt to figure out why it's doing it.
Robert N M Watson
Computer Laboratory
University of Cambridge
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