> We have a DEC 3000/600 running DU 2.0 that began crashing over the weekend
> with the following message:
>
> vrele: bad ref count, type VREG, usecount 0, refcount 0,
> tag VT_UFS, ino 172524 on dev 8, 19463
>
> Shortly after it displays this message, we'll see:
>
> panic: vrele: bad ref count
>
> then down it goes.
>
> I can find no reference to vrele in the man pages or any of my
> documentation. I also scanned the alpha-osf-managers archives and could
> find no reference to vrele there, either. Clearly, this is a ufs-mounted
> disk problem, but we don't have a "dev 8" (we have an rz3 and an rz11).
>
> Does anyone have any experience with this in _any_ version of DU? I'll
> summarize.
I received additional good information regarding this error (and
subsequent system panics) from:
brock_at_cs.unca.edu
Dr. Tom Blinn (tpb_at_zk3.dec.com)
vrele is a kernel routine for freeing the vnode of a file.
This routine should only be called when the last reference
to the file is removed. At this time the reference count
should be 1, rather than 0 (as your panic message shows).
To determine the affected disk drive, issue the following command:
# ls -l /dev/rz* | grep 19463
brw------- 1 root system 8,19463 Mar 2 1994 /dev/rz11h
If you find the file with inode number 172524 on the disk on your system
that corresponds to major number 8 and minor number 19463, and remove it,
you'll solve the problem.
Thanks to all, and sorry for the late addendum.
+++++++++++++++++++++++++++
Don Weyel Computer Systems Administrator
149B MacNider Hall Department of Biomedical Engineering
CB 7575 University of North Carolina at Chapel Hill
Chapel Hill, NC 27599
---------------------------
Internet: weyel_at_bme.unc.edu
Phone: 919-966-8077
FAX: 919-966-2963
---------------------------
Received on Tue Jun 04 1996 - 17:13:00 NZST