I have a SPARCclassic here that seems to hangs at a random but short
time after booting.  I can't break into DDB on the console, and
there's no other sign that anything was wrong.

This *seems* to have started happening when I updated from 1.3B to
1.3C+UVM (and continues with 1.3D+UVM and 1.3E+UVM, but I believe I've
heard a report of it happening without UVM).  However, I didn't use
the classic much before then, so I may have simply not noticed.

Uh, any clues?


NetBSD 1.3E (BILL-THE-CAT.UVM) #0: Wed Mar  4 14:04:26 EST 1998
    root@bill-the-cat.mit.edu:/u3/src/sys/arch/sparc/compile/BILL-THE-CAT.UVM
real mem = 50016256
avail mem = 44601344
using 610 buffers containing 2498560 bytes of memory
bootpath: /iommu@0,10000000/sbus@0,10001000/espdma@4,8400000/esp@4,8800000/sd@0,0
mainbus0 (root): SUNW,SPARCclassic
cpu0 at mainbus0: TMS390S10 @ 50 MHz, on-chip FPU
cpu0: physical 4K instruction (32 b/l), 2K data (16 b/l): cache enabled
obio0 at mainbus0
clock0 at obio0 addr 0x71200000: mk48t08 (eeprom)
timer0 at obio0 addr 0x71d00000 delay constant 23
zs0 at obio0 addr 0x71100000 pri 12, softpri 6
zstty0 at zs0 channel 0
zstty1 at zs0 channel 1
zs1 at obio0 addr 0x71000000 pri 12, softpri 6
kbd0 at zs1 channel 0 (console)
ms0 at zs1 channel 1
[slavioconfig at obio0] addr 0x71800000 not configured
auxreg0 at obio0 addr 0x71900000
[power at obio0] addr 0x71910000 not configured
fdc0 at obio0 addr 0x71400000 pri 11, softpri 4: chip 82077
fd0 at fdc0 drive 0: 1.44MB 80 cyl, 2 head, 18 sec
iommu0 at mainbus0 addr 0x10000000: version 0x1/0x4, page-size 4096, range 64MB
sbus0 at iommu0: clock = 25 MHz
dma0 at sbus0 slot 4 offset 0x8400000: rev 2
esp0 at dma0 slot 0x4 offset 0x8800000 pri 4: ESP200, 40MHz, SCSI ID 7
scsibus0 at esp0: 8 targets
probe(esp0:0:0): max sync rate 4.80Mb/s
sd0 at scsibus0 targ 0 lun 0: <FUJITSU, M2266S-512, 002C> SCSI1 0/direct fixed
sd0: 1029MB, 1658 cyl, 15 head, 84 sec, 512 bytes/sect x 2107704 sectors
probe(esp0:3:0): max sync rate 10.00Mb/s
sd1 at scsibus0 targ 3 lun 0: <CONNER, CP30540  SUN0535, B0BB> SCSI2 0/direct fixed
sd1: 520MB, 2242 cyl, 6 head, 79 sec, 512 bytes/sect x 1065912 sectors
audioamd0 at sbus0 slot 4 offset 0x1300000 pri 13, softpri 4
audio0 at audioamd0
SUNW,bpp at sbus0 slot 4 offset 0xc800000 not configured
ledma0 at sbus0 slot 4 offset 0x8400010: rev 2
le0 at ledma0 slot 0x4 offset 0x8c00000 pri 6: address 08:00:20:1f:49:df
le0: 8 receive buffers, 2 transmit buffers
cgthree at sbus0 slot 3 offset 0x0 not configured
root on sd0a dumps on sd0b
root file system type: ffs
uvm_swap: allocated 256 swap buffer headers