Stability of RELENG_5_4 with dual Xeon

[Dorr H. Clark]

On Tue, May 17, 2005 Marc G. Fournier wrote:

> > Which brings to mind ... has anyone every tried to do a 'console over 
> > tcp/ip' that would send everything it could to a remote monitoring 
> > machine?  There are several cases where, for some reason, you can no 
> > longer do logging to syslog, which can be critical for debugging purposes 
> > if you have no other way of knowing 'cause' of a crash/reboot ...
> > 
> > I realize that you can do alot of this at the hardware level, but for a 
> > remote server that hasn't been setup for this, suddenly causing problems, 
> > this might be a means of getting some sort of information ... even a 'gdb 
> > over tcp' would be cool, if that was possible ...

Run with a serial console to set up a remote gdbserver/kdb session,
then pull up the serial lines to a node on your network
to act as a serial console server.  There are concentrator serial 
link cards which can handle powers of 2 lines (8, 16, 32?...)
allowing you remote console access to banks of servers
& a normal kernel debugging scenario.

-dhc