http://bugme.osdl.org/show_bug.cgi?id=475
Summary: Cannot NFS mount from localhost
Kernel Version: 2.5.65
Status: NEW
Severity: normal
Owner: trond.myklebust@fys.uio.no
Submitter: robbiew@us.ibm.com
Distribution: SuSE 8.0 and SuSE 8.1
Hardware Environment:
---------------------
# cat /proc/cpuinfo
processor : 0
vendor_id : GenuineIntel
cpu family : 6
model : 8
model name : Pentium III (Coppermine)
stepping : 10
cpu MHz : 863.771
cache size : 256 KB
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 2
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov
pat pse36 mmx fxsr sse
bogomips : 1708.03
# cat /proc/meminfo
MemTotal: 252924 kB
MemFree: 176060 kB
Buffers: 2540 kB
Cached: 36276 kB
SwapCached: 0 kB
Active: 34700 kB
Inactive: 16764 kB
HighTotal: 0 kB
HighFree: 0 kB
LowTotal: 252924 kB
LowFree: 176060 kB
SwapTotal: 530104 kB
SwapFree: 530104 kB
Dirty: 0 kB
Writeback: 0 kB
Mapped: 24696 kB
Slab: 6396 kB
Committed_AS: 35624 kB
PageTables: 436 kB
ReverseMaps: 9997
HugePages_Total: 0
HugePages_Free: 0
Hugepagesize: 4096 kB
# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/hda2 27G 3.2G 22G 13% /
# mount
/dev/hda2 on / type ext2 (rw,mand)
proc on /proc type proc (rw)
devpts on /dev/pts type devpts (rw)
----------------------
Software Environment:
---------------------
# ./ver_linux
If some fields are empty or look unusual you may have an old version.
Compare to the current minimal requirements in Documentation/Changes.
Linux volare 2.5.65 #1 Wed Mar 19 17:12:47 CST 2003 i686 unknown
Gnu C 2.95.3
Gnu make 3.79.1
util-linux 2.11z
mount 2.11z
module-init-tools implemented
e2fsprogs 1.26
jfsutils 1.0.15
xfsprogs 2.0.0
PPP 2.4.1
isdn4k-utils 3.1pre4
Linux C Library x 1 root root 1394238 Mar 23
2002 /lib/libc.so.6
Dynamic linker (ldd) 2.2.5
Procps 3.1.5
Net-tools 1.60
Kbd 1.06
Sh-utils 2.0
Modules Loaded
# rpcinfo -p
program vers proto port
100000 2 tcp 111 portmapper
100000 2 udp 111 portmapper
100003 2 udp 2049 nfs
100021 1 udp 32768 nlockmgr
100021 3 udp 32768 nlockmgr
100024 1 udp 32770 status
100024 1 tcp 32768 status
100005 1 udp 32771 mountd
100005 1 tcp 32769 mountd
100005 2 udp 32771 mountd
100005 2 tcp 32769 mountd
100005 3 udp 32771 mountd
100005 3 tcp 32769 mountd
# exportfs
/server <world>
---------------------
Problem Description: In 2.5.65, I cannot NFS mount filesystems that are
exported from myself....this works in 2.4.21-pre5. I receive the following
message when I attempt the mount:
.........
# mount -o "vers=2,proto=udp,soft,intr,rw" localhost:/server /mnt
mount: wrong fs type, bad option, bad superblock on localhost:/server,
or too many mounted file systems
.........
I also see the following messages logged in dmesg:
.........
nfs: server localhost not responding, timed out
nfs_get_root: getattr error = 5
nfs_read_super: get root inode failed
.........
I did some preliminary code tracing, and it looks like the changes in the
sunrpc code has something to do with this. What's even stranger, is that it
only fails when mounting from yourself. Mount requests from other clients to
this same box are granted. Also, the box is able to mount from other NFS
servers.
---------------------
Steps to reproduce:
1) NFS export a filesystem
2) NFS mount your exported filesystem on the same box
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This archive was generated by hypermail 2b29 : Sun Mar 23 2003 - 22:00:29 EST