On Fri, 20 Feb 1998, Thor Lancelot Simon wrote:

[weird serial console problems on i386]
> I have some trouble understanding this.  Can anyone suggest a reason?  I'd
> like to just toss one of the hung machines into DDB and see where it's
> stopped, but the problem with this should be obvious...

Can't you drop the kernel into DDB over the serial console? On all the
zstty ports (sun3, mac68k, sparc, mvm68k, etc), sending a break on the
serial console drops you into DDB. And it should do it before whatever's
going on has a chance to unwedge. 

Take care,

Bill