6.0-CURRENT very unstable with PREEMPTION

[Stefan Ehmann]

On Tue, 2004-09-14 at 12:11, Stefan Ehmann wrote:
> Since it's default now, I turned PREEMPTION (with SCHED_4BSD) on again
> in my KERNCONF on my 6.0-CURRENT i386 pc.
> 
> After about 10-15 minutes some windows stop beeing redrawn... new terms
> can be started very slowly for a short period of time. Then everything
> completely freezes.
> 
> Unfortunately I can't provide much more information. So far I've only
> been able to reproduce this in X. Getting coredumps has not been working
> for months now and I don't have a serial console setup.
> 
> Without PREEMPTION everything works very stable.

Tried today again with fresh world/kernel and was able to reproduce the
hang in the console. The only thing working after a while was switching
consoles. No panic or any other messages though.