Subject: port-i386/14659: SMP kernel w/o serial console spontaneously reboots
To: None <>
From: Martin Husemann <>
List: netbsd-bugs
Date: 11/21/2001 09:20:43
>Number:         14659
>Category:       port-i386
>Synopsis:       SMP kernel w/o serial console spontaneously reboots
>Confidential:   no
>Severity:       critical
>Priority:       high
>Responsible:    port-i386-maintainer
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Wed Nov 21 00:24:00 PST 2001
>Originator:     Martin Husemann
>Release:        NetBSD 1.5Y
System: NetBSD 1.5Y NetBSD 1.5Y (BEASTY) #0: Tue Nov 20 17:25:21 CET 2001 i386
Architecture: i386
Machine: i386

When using a serial console, this machine works very reliable. Booting the
same kernel with kbd/vga as console makes it panic after a few minutes
when doing a build.

It just reboots, no crashdump.

I was running X on the console in both situations, the only difference is
where the console is attached. I have options UCONSOLE and xconsole is


 Kernel build from sources cvs updated yesterday, arch/i386 from the
 sommerfeld SMP branch.