I've got a current (5-17) kernel running on a 1+ that I'm trying to use
as an Appletalk server. I consistently receive esp-type panics when the
system gets any load. Is the 1+ a hopeless cause or what?

FYI- I can make a crash dump available if necessary. Here is the dmesg log:

bootpath: /sbus0/esp0/sd@1,0
mainbus0 (root): Sun 4/65
cpu0 at mainbus0: MB86900/1A or L64801 @ 25 MHz, WTL3170/2 FPU
cpu0: 65536 byte write-through, 16 bytes/line, sw flush cache enabled
memreg0 at mainbus0 ioaddr 0xf4000000
clock0 at mainbus0 ioaddr 0xf2000000: mk48t02 (eeprom)
timer0 at mainbus0 ioaddr 0xf3000000 delay constant 10
auxreg0 at mainbus0 ioaddr 0xf7400000
zs0 at mainbus0 ioaddr 0xf1000000 pri 12, softpri 6
zs0a: console i/o
zs1 at mainbus0 ioaddr 0xf0000000 pri 12, softpri 6
fdc0 at mainbus0 ioaddr 0xf7200000 pri 11, softpri 4: chip 82072
fd0 at fdc0 drive 0: 1.44MB 80 cyl, 2 head, 18 sec
audio0 at mainbus0 ioaddr 0xf7201000 pri 13, softpri 4
sbus0 at mainbus0 ioaddr 0xf8000000: clock = 25 MHz
dma0 at sbus0 slot 0 offset 0x400000: rev 1
esp0 at sbus0 slot 0 offset 0x800000 pri 3: ESP100, 25MHz, SCSI ID 7
scsibus0 at esp0: 8 targets
sd0 at scsibus0 targ 1 lun 0: <MAXTOR, MXT-1240S, I1.2> SCSI2 0/direct fixed
sd0: 1183MB, 2368 cyl, 15 head, 68 sec, 512 bytes/sec
sd1 at scsibus0 targ 2 lun 0: <SEAGATE, ST32430N, 0300> SCSI2 0/direct fixed
sd1: 2049MB, 3992 cyl, 9 head, 116 sec, 512 bytes/sec
le0 at sbus0 slot 0 offset 0xc00000 pri 5: address 08:00:20:09:83:c3
le0: 8 receive buffers, 2 transmit buffers
root on sd0a swap on sd0b
root file system type: ffs
data fault: pc=f803c670 addr=f85e7f24 ser=80<INVAL>
panic: kernel fault
syncing disks... 4 4 done
Frame pointer is at 0xf81296e0
Call traceback:
  pc = f8107300  args = (0, 900fe5, f813ec00, f8129800, f802f3d8, 10, 
f8129748) fp = 0xf8129748
  pc = f802e574  args = (100, 0, 1, f812986c, f802f3d8, f8129804, f81297b0) fp 
= 0xf81297b0
  pc = f810d72c  args = (100, f812f800, 1, f8129878, 0, 1, f8129818) fp = 
0xf8129818
  pc = f80062f4  args = (9, 80, f85e7f24, f803c670, 4007c1, f8129920, 
f81298c0) fp = 0xf81298c0
  pc = f80067ac  args = (1, ffffef24, 700, f85e9000, 8c, 1d324, f8129970) fp = 
0xf8129970
  pc = f80849ac  args = (f81b4638, f814243c, f81b4638, 0, 0, 0, f81299d8) fp = 
0xf81299d8
  pc = f807c4b8  args = (f81b4638, 14, f862e300, f862e300, f81b4654, f81b4668, 
f8129a80) fp = 0xf8129a80
  pc = f8106464  args = (10000, 100, f814dc00, f8af9400, 1, f8b06e64, 
f8129ae8) fp = 0xf8129ae8
  pc = f8006678  args = (4, f81063b0, f8b06e64, f8af9400, 1, ffff, f8129b50) 
fp = 0xf8129b50
  pc = f803ed58  args = (8000e0, 9, f8856400, f8b09980, 100, f89c8400, 
f9f2ed18) fp = 0xf9f2ed18

dumping to dev 701, offset 256864
dump 1 2 3 1 2 3 succeeded
rebooting