SPARC SUN with SUN OS 4.0EXPORT crashes with "panic: diskquota"

[Michael Kuschke]

I would like to hear if anybody else has encountered problems similary to
the I have.  Every 1 or 2 weeks our SUN 4/280 goes down with "panic:
diskquota".  The maschine runs SUN OS 4.0EXPORT and is used for classes of
undergraduateds learing scheme.  Most crashes happens at night,  when only
a few people are working.

If someone has any idea what could cause the problem I would like to hear
about it.  A strange thing I've seen is,  that when the maschine boots and
it mounts /home an errormessage like:

	"mount /dev/xd0h /home  WARNING unknown option quota"

(or so) appears on the console.  Here's also a $c from the core-dump.
Maybe it's good for something:

Script started on Wed Nov 16 00:21:19 1988
mk-marvin 1> adb -k ./vmunix.1 ./vmcore.1
physmem	ffd
$c
_panic(0xf80a7833,0x0,0x6000,0x10,0xb,0xb) + 7c
_getdiskquota(0x1d45,0xff075d8c,0x0,0xffffe9d4,0xf80c30a0,0xf8105bac) +	154
_getinoquota(0xf80f93f0,0xf80a7ff8,0x45e80003,0x1f06e,0x4000e1,0xff075d8c) + 40
_iget(0xff0c6000,0xff0bc000,0x388e,0xffffeb04,0xff005bc0,0xf80f93f0) + 4d0
_dirlook(0xf80f7b18,0xffffeb78,0xffffeb04,0xe8,0xe8,0x388e) + 2f0
_ufs_lookup(0xf80f7b18,0xffffeb78,0xffffeb74,0xff0f234c,0xffffecdc,0x0)	+ 10
_au_lookuppn(0xffffecdc,0x0,0x0,0x0,0x0,0x0) + 2a8
_au_lookupname(0x0,0x0,0x0,0x0,0xffffedec,0x0) + 30
_lookupname(0xae8d,0x0,0x0,0x0,0xffffedec,0x17ae0) + 18
_stat1(0xffffefe0,0x0,0x0,0x0,0x3,0xffffefe0) +	18
_lstat(0xffffefe0,0x5e,0x0,0xffefffff,0x84,0x0)	+ 8
_au_lstat(0xffffefe0,0xf80a46c0,0xf80a46c0,0x2,0xffffefb4,0xffffefe0) +	4
_syscall(0x8000000) + 2c0
^D
mk-marvin 2> ^D
script done on Wed Nov 16 00:22:02 1988

	Thanks in advance,
	  -Michael

  Michael Kuschke				  uucp: mk at unido.uucp
  Computer Science Department - IRB		        (...uunet!unido!mk)
  University of Dortmund			  BITNET: MK at DDOINF6.BITNET
  D-4600 Dortmund 50,PO-Box 500500, W.-Germany	  voice:  +49 231 755 2422