SYSTEM HANG - NATD running FINE

2006-04-19 Thread Ben and Jen
My system has recently locked up after 65 days uptime, running only natd for 
my local network.  Natd still works fine and routes information properly - but 
I am no longer able to telnet or login to my machine even from a local 
console(alt f1-fx).  After I enter my root or user name at the login - it just 
hangs there.  When I telnet in, it does not even prompt me with a login.  

Anybody ever had this problem before?  Any suggestions on how to recover my 
system without rebooting? 

Any help appreciated.

Thanks, 
Ben
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Re: SYSTEM HANG - NATD running FINE

2006-04-19 Thread Andy Reitz
On Wed, 19 Apr 2006, Ben and Jen wrote:

 My system has recently locked up after 65 days uptime, running only
 natd for my local network.  Natd still works fine and routes information
 properly - but I am no longer able to telnet or login to my machine even
 from a local console(alt f1-fx).  After I enter my root or user name at
 the login - it just hangs there.  When I telnet in, it does not even
 prompt me with a login.

 Anybody ever had this problem before?  Any suggestions on how to recover
 my system without rebooting?

Hi Ben,

Since you are unable to get a shell, it is unlikely that you will be able
to recover without rebooting.

However, you can try dropping into the online Kernel debugger, to try and
get more information about what is going on:

http://www.freebsd.org/doc/en/books/developers-handbook/kerneldebug-online-ddb.html

I think from there you can force a panic, which could provide you with
some post-mortem information to go over:

http://www.onlamp.com/pub/a/bsd/2002/03/21/Big_Scary_Daemons.html

Good luck,
-Andy.

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