Hi,

>>What does the kernel messages say?
> 
> 
> Nothing.  The logs simply stop when the machine does and are no longer written 
> even though the kernel is operable enough to respond to pings and initiate 
> TCP sessions.
I've seen exactly the same on a few <= 2.4.30 systems... New logins via
ssh or directly on the console, won't work at all (both via pam). It
seems that this behavior was related to the syslog-ng daemon, which
hangs completely.
As soon as the daemon gets restarted, everything comes back to work as
before.
Unfortunately I didn't had the time (yet) to discover what causes the
syslog hanging :(

regards,
Christian
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