My machine just randomly crashed for a first time in quite a while,
and it's up 24 hours a day normally.

Although I have DDB and DIAGNOSTIC enabled, the screen just suddenly
blanked and rebooted.  I'll do my best to describe everything that
was happening on the machine.

Although I have an IDE drive configured in my kernel, the drive
hadn't been accessed a single time since my last reboot.  Everything
is on one SCSI-1 drive, connected via my UltraStor 34F.

The system crashed after being up for at least a day.  It was
connected via SLIP, as it is 24 hours a day, and a user was telnetted
in, although they were idle at the time.  I was running XFree86
3.0Ce, and wasn't doing anything unusual with X, not to mention
I've been running this version for well over a week without any
problems.

In one xterm I was compiling a new kernel, from newly supped sources
from sun-lamp on Aug 9 (today).  As far as I remember it was just
compiling one of the source files.  In another xterm I was reading
man pages.  I believe I had just typed a "man" command when it
rebooted.

My system is a Gateway 2000 486-DX2/66 VLB with 16mb of RAM,
UltraStor 34F VLB SCSI controller, one SCSI-1 drive (which has
everything on it), one SCSI-1 tape, which I hadn't accessed since
the last reboot, an IDE drive which I hadn't accessed since reboot,
an ATI Graphics Ultra Pro VLB with 2mb of VRAM.  I am running with
the external cache completely disabled.

All of my filesystems are level-2, and have been for at least a
week.  I hadn't mounted or unmounted anything manually; only what's
in the fstab was mounted.

I was running a system compiled from scratch, supped from sun-lamp
on Aug 7th with the following fstab, dmesg and config.  The dmesg
is from after the reboot, but it's the same kernel:

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 
/dev/sd0a	/		ufs	rw 1 1
/dev/sd0e	/usr		ufs	rw 1 2
/dev/sd0b	none		swap	sw
/dev/sd0b	/tmp		mfs	rw,-s=16384
kernfs		/kern		kernfs	rw 1 0
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 
NetBSD 1.0_BETA (EXCELSIOR) #0: Sun Aug  7 18:56:57 EDT 1994
    mhw@cis-ts3-slip4.cis.brown.edu:/usr/src/sys/arch/i386/compile/EXCELSIOR
CPU: i486DX (486-class CPU)
real mem  = 16121856
avail mem = 13774848
using 222 buffers containing 909312 bytes of memory
kbd_cmd: input char 47 lost
pcprobe: reset error 4
pc0 at isa0 port 0x60-0x6f irq 1: color
npx0 at isa0 port 0xf0-0xff: using exception 16
com0 at isa0 port 0x3f8-0x3ff irq 4: ns16550a, working fifo
com1 at isa0 port 0x2f8-0x2ff irq 3: ns16550a, working fifo
com2 at isa0 port 0x3e8-0x3ef irq 9: ns16550a, working fifo
lpt0 at isa0 port 0x3bc-0x3c3: polled
wdc0 at isa0 port 0x1f0-0x1f7 irq 14
wd0 at wdc0 drive 0: 325MB 1010 cyl, 12 head, 55 sec <WDC AC2340H>
fdc0 at isa0 port 0x3f0-0x3f7 irq 6 drq 2
fd0 at fdc0 drive 0: 1.44MB 80 cyl, 2 head, 18 sec
fd1 at fdc0 drive 1: 1.2MB 80 cyl, 2 head, 15 sec
uha0 at isa0 port 0x340-0x34f irq 11
scsibus0 at uha0
uha0 targ 0 lun 0: <IMPRIMIS94601-15        4614> SCSI1 direct fixed
sd0 at scsibus0: 992MB, 1931 cyl, 15 head, 70 sec, 512 bytes/sec
uha0 targ 1 lun 0: <ARCHIVE VIPER 2525 25462-007> SCSI1 sequential removable
st0 at scsibus0: rogue, density code 0x0, 1024-byte blocks, write-protected
biomask 4840 netmask 21a ttymask 21a

 Aperture driver for XFree86 version 1.1
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 
#
# EXCELSIOR
#

machine		"i386"
ident		EXCELSIOR
cpu		"I486_CPU"
options		"COMPAT_09"
options		MATH_EMULATE
options		MACHINE_NONCONTIG
timezone	5 dst
maxusers	10
options		SWAPPAGER,VNODEPAGER,DEVPAGER
options		KTRACE
options		FIFO
options		SYSVMSG
options		SYSVSEM
options		SYSVSHM
options		LKM
options		SCSI
options		QUOTA
options		MFS
options		FFS
options		NFSSERVER
options		NFSCLIENT
options		MSDOSFS
options		FDESC
options		SETUIDSCRIPTS, FDSCRIPTS
options		KERNFS
options		INET
options		NS
options		ISO
options		TPIP
options		EON
options		MULTICAST
options		GATEWAY
options		DDB, DIAGNOSTIC
options		"USER_LDT"
options		"COMPAT_NOMID"
options		"COMPAT_43"
options		"TCP_COMPAT_42"
options		XSERVER,UCONSOLE
options		"PCVT_META_ESC=1"

config		netbsd	root on sd0 swap on sd0

controller	isa0
device		pc0	at isa? port "IO_KBD" irq 1
device		npx0	at isa? port "IO_NPX" irq 13
device		com0	at isa? port "IO_COM1" irq 4
device		com1	at isa? port "IO_COM2" irq 3
device		com2	at isa? port "IO_COM3" irq 9
device		lpt0	at isa? port "IO_LPT3"

controller	wdc0	at isa? port "IO_WD1" irq 14
disk		wd0	at wdc0 drive ?

controller	fdc0	at isa? port "IO_FD1" irq 6 drq 2
disk		fd0	at fdc0 drive ?
disk		fd1	at fdc0 drive ?

controller	uha0	at isa? port 0x340 irq ? drq ?
master		scsibus0 at uha0
device		sd0	at scsibus0 slave ?
device		st0	at scsibus0 slave ?

pseudo-device pty	64
pseudo-device loop
pseudo-device ether #XXX
pseudo-device log
pseudo-device bpfilter	4
pseudo-device sl	2
pseudo-device ppp
pseudo-device vn	4
pseudo-device speaker
pseudo-device tb

	Mark
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Email: Mark_Weaver@brown.edu           | Brown University
PGP Key: finger mhw@cs.brown.edu       | Dept of Computer Science

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