I have been running a Sun 3/150 with NetBSD 1.2 since March and have had no
problems untill about a week ago when I started up the vi editor and the
system went into a panic then dropped into the debugger.  I rebooted the
system and it came up and after trying a few other utilities like ed and
when I try to shut the system down it would panic as well. An example
follows showing what happened when I use shutdown -h now which I have used
many times before with no problems:

       sapphire# shutdown -h now
       Shutdown NOW!
       shutdown: [pid 102]
       mode = 0100644, inum = 6196, fs = /
       panic: ffs_valloc: dup alloc
       Stopped at      _Debugger+0x6:  unlk    a6
       db>

I have included the boot up sequence till the time it panics at the end of
this posting to show some stats if anyone requires it. At this point I am
with out a clue as to what is the cause, any ideas?

Rick GC

****************************************************************************
*****

>b sd()
Boot: sd(0,0,0)
>> NetBSD ufsboot [$Revision: 1.2 $]
725304+35820+81316+[58320+56227]=0xe9a3f
Starting program at 0x4000
sun3_save_symtab:  found 58320 + 56227
console is zstty0 (ttya)
[ preserving 114551 bytes of netbsd symbol table ]
Copyright (c) 1982, 1986, 1989, 1991, 1993
        The Regents of the University of California.  All rights reserved.

NetBSD 1.2 (GENERIC) #89: Thu Oct  3 18:08:02 EDT 1996
    gwr@bach:/play/gwr/netbsd/build/sys/arch/sun3/compile/GENERIC
Model: Sun 3/160 (hostid 11007dfb)
fpu: mc68881
real mem = 16760832
avail mem = 14589952
using 115 buffers containing 942080 bytes of memory
mainbus0 (root)
obio0 at mainbus0
zsc0 at obio0 addr 0x0 level 6 (softpri 3)
kbd0 at zsc0 channel 0
ms0 at zsc0 channel 1
zsc1 at obio0 addr 0x20000 level 6 (softpri 3)
zstty0 at zsc1 channel 0 (console)
zstty1 at zsc1 channel 1
eeprom0 at obio0 addr 0x40000
clock0 at obio0 addr 0x60000 level 5
memerr0 at obio0 addr 0x80000 (ECC memory)
intreg0 at obio0 addr 0xa0000
ie0 at obio0 addr 0xc0000 level 3 hwaddr 08:00:20:08:51:57
obmem0 at mainbus0
bwtwo0 at obmem0 addr 0xff000000 (1152x900)
vmes0 at mainbus0
si0 at vmes0 addr 0xff200000 level 2 vector 0x40 : options=3
scsibus0 at si0
sd0 at scsibus0 targ 0 lun 0: <MAXTOR, XT-4380S, SC07> SCSI1 0/direct fixed
sd0: 319MB, 1224 cyl, 15 head, 35 sec, 512 bytes/sec
sd2 at scsibus0 targ 1 lun 0: <MAXTOR, XT-4380S, SC07> SCSI1 0/direct fixed
sd2: 318MB, 1224 cyl, 15 head, 35 sec, 512 bytes/sec
vmel0 at mainbus0
root on sd0a
swap on sd0b
dump on sd0b
Automatic boot in progress: starting file system checks.
/dev/rsd0a: INCORRECT BLOCK COUNT I=6196 (2 should be 0) (CORRECTED)
/dev/rsd0a: UNREF FILE I=6196  OWNER=root MODE=100644
/dev/rsd0a: SIZE=0 MTIME=Jun  2 03:01 1997  (CLEARED)
/dev/rsd0a: FREE BLK COUNT(S) WRONG IN SUPERBLK (SALVAGED)
/dev/rsd0a: 674 files, 9200 used, 250366 free (414 frags, 31244 blocks, 0.2% fra
gmentation)
/dev/rsd0a: MARKING FILE SYSTEM CLEAN
/dev/rsd2e: 3787 files, 51189 used, 259004 free (1676 frags, 32166 blocks, 0.5%
fragmentation)
/dev/rsd2e: MARKING FILE SYSTEM CLEAN
/dev/sd0a: file system not clean; please fsck(8)
setting tty flags
kbd0: reset failed
starting network
ie0: TDR detected a short 4096 clocks away
add host sapphire.gem.com: gateway localhost
starting rpc daemons: portmap.
starting system logger, time daemonJun 28 05:30:35 sapphire /netbsd: kbd0: reset
 failed
.
checking quotas: done.
building databases...
clearing /tmp
standard daemons: update cron.
starting network daemons: routed printer inetd.
creating runtime link editor directory cache.
starting local daemons:.
Sat Jun 28 05:30:56 PDT 1997
Jun 28 05:30:57 sapphire init: kernel security level changed from 0 to 1

NetBSD/sun3 (sapphire.gem.com) (console)

login: root
Last login: Fri Jun 27 20:47:24 on console
Jun 28 05:42:53 sapphire login: ROOT LOGIN (root) ON console
Jun 28 05:42:53 sapphire login: ROOT LOGIN (root) ON console
Copyright (c) 1980, 1983, 1986, 1988, 1990, 1991, 1993, 1994
        The Regents of the University of California.   All rights reserved.

NetBSD 1.2 (GENERIC) #89: Thu Oct  3 18:08:02 EDT 1996

Welcome to NetBSD!

Terminal type? [unknown] vt100
Don't login as root, use su
sapphire# cd /etc
sapphire# shutdown -h now
Shutdown NOW!
shutdown: [pid 102]
mode = 0100644, inum = 6196, fs = /
panic: ffs_valloc: dup alloc
Stopped at      _Debugger+0x6:  unlk    a6
db>