>Number:         10579
>Category:       kern
>Synopsis:       crash in NFS unmount caused by amd(8)
>Confidential:   no
>Severity:       critical
>Priority:       high
>Responsible:    kern-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Thu Jul 13 09:51:00 PDT 2000
>Closed-Date:
>Last-Modified:
>Originator:     Jason R Thorpe
>Release:        Thu Jul 13 03:01:53 PDT 2000
>Organization:
6th and Hugo Software
>Environment:
	
System: NetBSD frau-farbissina 1.5B NetBSD 1.5B (FRAU-FARBISSINA) #37: Wed Jul 12 15:54:41 PDT 2000     thorpej@frau-farbissina:/u2/netbsd/src/sys/arch/alpha/compile/FRAU-FARBISSINA alpha

	AlphaServer 1200 5/533, 1G RAM

>Description:
	While building a NetBSD/alpha 1.5_ALPHA snapshot on my
	AlphaServer 1200, the system crashed with:

	panic: vgonel: not clean

	The traceback is:

	vgonel
	vflush
	nfs_unmount
	do_unmount
	sys_unmount

	curproc is amd.

	My 1.5_ALPHA sources are on another machine, accessed via
	NFS, mounted with amd(8).

	Any automounted filesystems that amd(8) is attempting to
	unmount at this point should (there are two) should be busy:

	/amd/yeah-baby/u1 -- home directories, there was a shell sitting
	in ~thorpej at the time.

	/amd/swinger/u1 -- where the 1.5_ALPHA sources are, either a
	build was active, or had completed, and a shell was just sitting
	there.

>How-To-Repeat:
	Was building a NetBSD-1.5_ALPHA shapshot over NFS.  I may be albe
	to easily reproduce it by doing this again.

>Fix:
	Not known.
>Release-Note:
>Audit-Trail:
>Unformatted: