>Number:         12143
>Category:       kern
>Synopsis:       panic: ffs_unmount: flush left dirty bufs
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    kern-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Tue Feb 06 23:35:00 PST 2001
>Closed-Date:
>Last-Modified:
>Originator:     Jesse Off <joff@gci-net.com>
>Release:        NetBSD 1.5R
>Organization:
>Environment:
NetBSD 1.5R kernel compiled yesterday / 1.5 ALPHA2 userland.
i386

>Description:
	While doing a make release, I got this panic when the build was
	unmounting the vnd0 device for the floppy creation.
>How-To-Repeat:
	repeated make release until you get this.
>Fix:
	Don't know.  We had this problem in LFS due to races at
	umount time.  It was fixed by putting in proper locking with vfs_busy() 
	Maybe something similar?
>Release-Note:
>Audit-Trail:
>Unformatted: