i386/60984: NFS Server hang

[Matthew Jones]

>Number:         60984
>Category:       i386
>Synopsis:       NFS Server hang
>Confidential:   no
>Severity:       serious
>Priority:       low
>Responsible:    freebsd-i386
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Tue Jan 06 10:20:20 PST 2004
>Closed-Date:
>Last-Modified:
>Originator:     Matthew Jones
>Release:        5.1-RELEASE-p11
>Organization:
>Environment:
> uname -a
FreeBSD matburt.homeunix.com 5.1-RELEASE-p11 FreeBSD 5.1-RELEASE-p11 #0: Thu Jan 1 23:07:56 CST 2004     root at matburt.homeunix.com:/usr/obj/usr/src/sys/MATBURT-122903-QUOTAS  i386
>Description:
The FreeBSD machine acts as an NFS server to 1 OpenBSD router, just providing some freespace at mount point /mnt/mirrors

While attempting large filesystem jobs (such as running chown -R on a subdirectory under the mountpoint or running a 'find /mnt/mirrors') causes the NFS server to hang.   I am also unable to restart nfsd as two of the processes will not die.

Subsequently the filesystem is also not responding and is unusable even on the local machine.
>How-To-Repeat:
Running large jobs from an NFS client, such as a chown -R or find
>Fix:
      
>Release-Note:
>Audit-Trail:
>Unformatted: