From nobody  Mon Aug  4 17:14:47 1997
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Date: Mon, 4 Aug 1997 17:14:47 -0700 (PDT)
From: richard@cogsci.ed.ac.uk
To: freebsd-gnats-submit@freebsd.org
Subject: unmounting mfs filesystem does bogus dns lookups
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>Number:         4228
>Category:       bin
>Synopsis:       unmounting mfs filesystem does bogus dns lookups
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    freebsd-bugs
>State:          closed
>Quarter:
>Keywords:
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Mon Aug  4 17:20:01 PDT 1997
>Closed-Date:    Sat Aug 9 16:52:08 MEST 1997
>Last-Modified:  Sat Aug  9 16:52:47 MEST 1997
>Originator:     Richard Tobin
>Release:        2.2.2
>Organization:
University of Edinburgh
>Environment:
FreeBSD spottisvax.nonet 2.2.2-RELEASE FreeBSD 2.2.2-RELEASE #0: Tue Aug  5 00:38:08 BST 1997     richard@spottisvax.nonet:/bigdisk/usr.src/sys/compile/SPOTTISVAX  i386

>Description:
/tmp is a memory filesystem.  If I unmount it when I am not connected
to the Internet, unmounting takes several minutes.  ktrace indicates
that umount is looking up the name "mfs".  Presumably this is related
to the fact that mount shows the filesystem as (eg) mfs:581 which
looks like an NFS location.
>How-To-Repeat:
Install a nameserver on your machine.  Ensure you are not connected
to the internet.   Mount a memory filesystem.  Unmount it.  Go for
a cup of tea.
>Fix:

>Release-Note:
>Audit-Trail:

From: j@uriah.heep.sax.de (J Wunsch)
To: richard@cogsci.ed.ac.uk
Cc: freebsd-gnats-submit@FreeBSD.ORG
Subject: Re: bin/4228: unmounting mfs filesystem does bogus dns lookups
Date: Tue, 5 Aug 1997 08:39:52 +0200

 As richard@cogsci.ed.ac.uk wrote:
 
 > /tmp is a memory filesystem.  If I unmount it when I am not connected
 > to the Internet, unmounting takes several minutes.
 
 This has already been fixed in:
 
 revision 1.7
 date: 1997/05/16 10:27:02;  author: dfr;  state: Exp;  lines: +2 -2
 Generalise the previous change so that only NFS hostnames are looked up.
 
 PR:             bin/3588
 Suggested by:   Joerg Wunsch <joerg_wunsch@uriah.heep.sax.de>
 ----------------------------
 revision 1.6
 date: 1997/04/29 09:10:11;  author: dfr;  state: Exp;  lines: +2 -2
 Don't try to look up unionfs' <above>, <below> keywords as hostnames.
 
 ...of umount.c.  The fix is not yet in the 2.2-stable branch, but
 probably should be there.
 
 -- 
 cheers, J"org
 
 joerg_wunsch@uriah.heep.sax.de -- http://www.sax.de/~joerg/ -- NIC: JW11-RIPE
 Never trust an operating system you don't have sources for. ;-)
State-Changed-From-To: open->closed 
State-Changed-By: joerg 
State-Changed-When: Sat Aug 9 16:52:08 MEST 1997 
State-Changed-Why:  
This has already been fixed in rev 1.6/1.7 in -current.  Fix merged into 
RELENG_2_2 in rev 1.4.6.2 as well. 
>Unformatted:
