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Date: Tue, 2 Jan 1996 02:06:05 +0200
From: Heikki Suonsivu <hsu@clinet.fi>
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Subject: bin/926: Mounting nfs disks before starting mountd: Chicken or Egg problem
Sender: owner-bugs@freebsd.org
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>Number:         926
>Category:       bin
>Synopsis:       Mounting nfs disks before starting mountd: Chicken or Egg problem
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    freebsd-bugs
>State:          open
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Mon Jan  1 16:10:01 PST 1996
>Last-Modified:
>Originator:     Heikki Suonsivu
>Organization:
Clinet, Espoo, Finland
>Release:        FreeBSD 2.2-CURRENT i386
>Environment:

	Machine A:  nfs server, but also mounts disks from B.  Primary name
	server.

	Machine B:  nfs server, but also mounts disks from A. 

>Description:

	Two problems:

	A only crashes:  locks up in mount -a -t nfs, as B does not get
	name server replies.  This probably is a problem in mount, as it
	should try secondary name servers, but apparently it does not.

	A and B both crash (this happens often, as after A crashes B goes
	into a deadlock in the nfs code).  Both get stuck in
	mount -a -t nfs, as neither system has mountd running yet.
	Breaking mount from either machine gets them up, one without nfs
	disks.

>How-To-Repeat:

	Set up two FreeBSD machines to mount each others disks and reboot
	both of the simultaneously. 

>Fix:
	
	I am trying moving mount -a -t nfs after starting mountd and nfsiod in
	/etc/rc.  We will see what happens with the next crash.
	
>Audit-Trail:
>Unformatted: