Date: Fri, 24 Nov 2000 12:33:56 -0800 (PST) From: jrd@cc.usu.edu To: freebsd-gnats-submit@FreeBSD.org Subject: misc/23084: mount_nfs hangs self with some NFS servers Message-ID: <20001124203356.43C4737B479@hub.freebsd.org>
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>Number: 23084
>Category: misc
>Synopsis: mount_nfs hangs self with some NFS servers
>Confidential: no
>Severity: non-critical
>Priority: medium
>Responsible: freebsd-bugs
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Fri Nov 24 12:40:01 PST 2000
>Closed-Date:
>Last-Modified:
>Originator: Joe R. Doupnik
>Release: 4.2-RELEASE
>Organization:
Utah State University
>Environment:
netlab6# uname -a
FreeBSD netlab6.usu.edu 4.2-RELEASE FreeBSD 4.2-RELEASE #0: Tue Nov 21 18:47:36
MST 2000 root@netlab6.usu.edu:/usr/src/sys/compile/JRD i386
>Description:
Netlab6 is FreeBSD 4.2, netlab4 is the NetWare 5.1 file server exporting
/SYS/anonftp. Solaris8 and UnixWare 7.1.1 and Caldera Linux 2.4 all
mount this with no problem. Note that Caldera Linux does mount v2 udp
calls no matter what, sigh.
Mount_nfs is not picking up the fact that the exporting server is
not offering mounting over tcp, and instead FBSD gets stuck trying
over and over.
I might mention in passing that the code for mount_nfs has section
near the end where mount version is switch/case'd on 1 and 3 but
no mention is made of 2 and default. This may be fine, but it looks
incomplete at first glance.
Below is the screen dialogue illustrating the problem.
netlab6# rpcinfo -p netlab4
program vers proto port
100000 3 tcp 111 portmapper
100000 3 udp 111 portmapper
100000 2 udp 111 portmapper
100000 2 tcp 111 portmapper
100007 2 udp 1028 ypbind
100003 2 udp 2049 nfs
100003 2 tcp 2049 nfs
100003 3 udp 2049 nfs
100003 3 tcp 2049 nfs
100005 1 udp 1029 mountd
100005 2 udp 1030 mountd
100005 3 udp 1031 mountd
netlab6# mount_nfs -o ro,soft netlab4:/SYS/anonftp /mnt
mount_nfs: can't access /SYS/anonftp: No such file or directory
netlab6# mount_nfs -3 -o ro,soft netlab4:/SYS/anonftp /mnt
mount_nfs: can't access /SYS/anonftp: No such file or directory
netlab6# mount_nfs -T -o ro,soft netlab4:/SYS/anonftp /mnt
Cannot MNT RPC: RPC: Program not registered
^C << This will go on, and on, failing.
netlab6#
netlab6# mount_nfs -2 -o ro,soft netlab4:/SYS/anonftp /mnt
netlab6#
netlab6# uname -a
FreeBSD netlab6.usu.edu 4.2-RELEASE FreeBSD 4.2-RELEASE #0: Tue Nov 21 18:47:36
MST 2000 root@netlab6.usu.edu:/usr/src/sys/compile/JRD i386
netlab6#
>How-To-Repeat:
Mounting is from a NetWare 5.1 file server.
>Fix:
>Release-Note:
>Audit-Trail:
>Unformatted:
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