On Sun, 23 Nov 2003, Matt Smith wrote:

> Since updating two of my machines to the latest HEAD I am experiencing a
>   total lockup on one of them. 
> 
> After being booted for approx 3 minutes the machine stops responding
> completely. It doesn't panic or drop into DDB. The numlock key doesn't
> toggle the keyboard light, and I can't drop it into DDB manually. 
> 
> I have full debugging options compiled in to this kernel as per the
> usual -CURRENT GENERIC file. 
> 
> It's currently booted with the older kernel from the 16th and this is
> stable as a rock. 
> 
> Anything else I can do to find the problem out or workaround it
> considering it just hangs? 
> 
> The machine is a router running two 3com network cards (xl) and
> IPFW/natd. It also has IPV6 with IP6FW, and a gif tunnel. 

Any chance you could hook up a serial console, set BREAK_TO_DEBUGGER in
kernel options, and see if a serial break drops you to DDB over serial?
Under some circumstances a serial break can be more effective getting into
the debugger than a console break.

Robert N M Watson             FreeBSD Core Team, TrustedBSD Projects
[EMAIL PROTECTED]      Network Associates Laboratories


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