Subject: kernel crash upon reboot from MS-DOG
To: NetBSD Current Users <>
From: Thomas Eberhardt <>
List: current-users
Date: 12/03/1994 04:10:43
Since I installed a 1.0A kernel (and rebuilt the entire user land,
which built without problems) I get into the kernel debugger upon reboot
from MS-DOG (i.e.: ctrl-alt-del and then select NetBSD from my osbs20b8
boot menu).

Here are the kernel message up to the crash:

NetBSD 1.0A (ED209) #3: Wed Nov 30 21:33:22 MET 1994
CPU: i486DX (486-class CPU)
real mem  = 16384000
avail mem = 14290944
using 225 buffers containing 921600 bytes of memory
isa0 (root)
npx0 at isa0 port 0xf0-0xff: using exception 16
pc0 at isa0 port 0x60-0x6f irq 1: color
com0 at isa0 port 0x3f8-0x3ff irq 4: ns16550a, working fifo
com1 at isa0 port 0x2f8-0x2ff irq 3: ns16550a, working fifo
lpt0 at isa0 port 0x378-0x37f irq 7
aha1: 1542C/CF detected, unlocking mailbox
aha1 at isa0 port 0x334-0x337 irq 11 drq 5
scsibus0 at aha1
aha1 targ 0 lun 0: <FUJITSU M2624F-512      0405> SCSI2 direct fixed
sd0 at scsibus0: 496MB, 1429 cyl, 11 head, 64 sec, 512 bytes/sec
aha1 targ 1 lun 0: <QUANTUM LPS540S         5900> SCSI2 direct fixed
sd1 at scsibus0: 516MB, 2740 cyl, 4 head, 96 sec, 512 bytes/sec
aha1 targ 2 lun 0: <ARCHIVE VIPER 150  21247-005> SCSI1 sequential removable
st0 at scsibus0: rogue, drive empty
aha1 targ 4 lun 0: <TOSHIBA CD-ROM XM-3401TA0283> SCSI2 readonly removable
cd0 at scsibus0: cd present, 167585 x 2048 byte records
fdc0 at isa0 port 0x3f0-0x3f7 irq 6 drq 2
fd0 at fdc0 drive 0: 1.44MB 80 cyl, 2 head, 18 sec
root device eisa not configured
root device pci not configured
biomask 840 netmask 1a ttymask 1a
kernel: invalid TSS fault trap, code = 0
Stopped at start+0x7fe: iret

When I then do "call cpu_reset" and again select NetBSD from my boot menu
the kernel boots fine.

Does anyone else who uses NetBSD-current has this problem?

/  Thomas Eberhardt <>  \            Moo!  (__)
| Center for Complex Systems and Visualization (CeVis) |_________/--------(oo)
|     University of Bremen, FB 3, Bibliothekstr. 1     |        * |______||\/
\_o_ D-28359 Bremen, Germany, FAX: +49 421 218-4236 _o_/          ^^     ^^