On Tue, 31 Dec 1996, isaiah wrote:

> I've recently run into some problems with the kernal spewing errors or 
> the sort:
> 
> Dec 30 21:19:41 opus /netbsd: zstty0: ring overrun
> Dec 30 21:19:41 opus /netbsd: zstty0: ring overrun
> Dec 30 21:19:41 opus /netbsd: zstty0: fifo overrun
> Dec 30 21:19:41 opus /netbsd: zstty0: fifo overrun

Those are really just informational messages telling you that the
application, in this case pppd, isn't picking up data from the ring buffer
quickly enough (a relatively large holding area for incoming data between
the application and the driver) or isn't pulling data from the serial chip
FIFO to the ring buffer quickly enough.  Neither is a reason for the
kernel to panic.

> Occasionally (although never while I'm watching it) the kernal panics and 
> these are the last errrors I see.  It would be really nice if the kernal 
> didn't panic twice a day, it's getting to be a real pain in the butt.

Could you find what the panic message is?  (The `dmesg' command should be
able to tell you if it happened relatively recently.)