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主机A情况
[root@Mike /pub]# uname -a
Linux Mike.zanget 2.6.9-5.EL #1 Wed Jan 5 19:22:18 EST 2005 i686 i686 i386 GNU/Linux
[root@Mike /pub]# nfsstat
Server rpc stats:
calls badcalls badauth badclnt xdrcall
744 0 0 0 0
Server nfs v2:
null getattr setattr root lookup readlink
0 0% 44 8% 0 0% 0 0% 12 2% 0 0%
read wrcache write create remove rename
431 86% 0 0% 0 0% 0 0% 0 0% 0 0%
link symlink mkdir rmdir readdir fsstat
0 0% 0 0% 0 0% 0 0% 7 1% 6 1%
Server nfs v3:
null getattr setattr lookup access readlink
0 0% 38 15% 0 0% 6 2% 71 29% 0 0%
read write create mkdir symlink mknod
118 48% 0 0% 0 0% 0 0% 0 0% 0 0%
remove rmdir rename link readdir readdirplus
0 0% 0 0% 0 0% 0 0% 5 2% 0 0%
fsstat fsinfo pathconf commit
3 1% 3 1% 0 0% 0 0%
注:Server nfs v3:的数据只是开始我未指定挂载选项-o nfsvers=2的情况
[root@Mike /pub]# dmesg | grep nfs
SELinux: initialized (dev selinuxfs, type selinuxfs), uses genfs_contexts
SELinux: initialized (dev eventpollfs, type eventpollfs), uses genfs_contexts
SELinux: initialized (dev futexfs, type futexfs), uses genfs_contexts
SELinux: initialized (dev proc, type proc), uses genfs_contexts
SELinux: initialized (dev bdev, type bdev), uses genfs_contexts
SELinux: initialized (dev rootfs, type rootfs), uses genfs_contexts
SELinux: initialized (dev sysfs, type sysfs), uses genfs_contexts
SELinux: initialized (dev usbfs, type usbfs), uses genfs_contexts
SELinux: initialized (dev usbdevfs, type usbdevfs), uses genfs_contexts
SELinux: initialized (dev ramfs, type ramfs), uses genfs_contexts
SELinux: initialized (dev binfmt_misc, type binfmt_misc), uses genfs_contexts
SELinux: initialized (dev rpc_pipefs, type rpc_pipefs), uses genfs_contexts
Installing knfsd (copyright (C) 1996 okir@monad.swb.de).
SELinux: initialized (dev nfsd, type nfsd), uses genfs_contexts
SELinux: initialized (dev hdc, type iso9660), uses genfs_contexts
nfsd: last server has exited
nfsd: unexporting all filesystems
[root@Mike /pub]# ifconfig
eth0 Link encap:Ethernet HWaddr 00:0C:29:E2:75:F2
inet addr:172.16.17.232 Bcast:172.16.17.255 Mask:255.255.255.0
inet6 addr: fe80::20c:29ff:fee2:75f2/64 Scopeink
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:45780 errors:0 dropped:0 overruns:0 frame:0
TX packets:9788 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:4516451 (4.3 MiB) TX bytes:8451482 (8.0 MiB)
Interrupt:10 Base address:0x2000
…
target机情况:
# cat cpuinfo
CPU: MC68VZ328
MMU: none
FPU: none
Clocking: 33.1MHz
BogoMips: 2.59
Calibration: 1299200 loops
运行1
# portmap [命令运行正常]
# mount -t nfs 172.16.17.232:/pub /tmp -o nfsvers=2 [命令运行正常并且立即返回]
#mount
/dev/mtdblock4 on / type romfs (ro)
/proc on /proc type proc (rw)
/dev/ram0 on /var type ext2 (rw)
/dev/mtdblock5 on /usr/bin type jffs (rw)
172.16.17.232:/pub on /mnt type nfs (rw,v2,rsize=8192,wsize=8192,hard,udp,lock,addr=172.16.17.232)
# dmesg [无错误信息]
…
# cd /tmp
# ls
a pub
# ./pub [shell死掉,并且CTRL+C不能结束]
运行2
# portmap [命令运行正常]
# mount -t nfs 172.16.17.232:/pub /tmp -o nfsvers=2 [命令运行正常并且立即返回]
#mount
/dev/mtdblock4 on / type romfs (ro)
/proc on /proc type proc (rw)
/dev/ram0 on /var type ext2 (rw)
/dev/mtdblock5 on /usr/bin type jffs (rw)
172.16.17.232:/pub on /mnt type nfs (rw,v2,rsize=8192,wsize=8192,hard,udp,lock,addr=172.16.17.232)
# dmesg [无错误信息]
…
Creating 6 MTD partitions on "Flash":
0x00000000-0x00008000 : "lilo"
0x00008000-0x0000a000 : "config"
0x0000a000-0x0003a000 : "font"
0x0003a100-0x00180000 : "kernel"
0x00180100-0x002a0000 : "romfs"
0x002a0000-0x00400000 : "user"
NET4: Linux TCP/IP 1.0 for NET4.0
IP Protocols: ICMP, UDP, TCP
IP: routing cache hash table of 512 buckets, 4Kbytes
TCP: Hash tables configured (established 512 bind 512)
NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
VFS: tried fs_name = <ext2> err= 0
VFS: Mounted root (romfs filesystem) readonly.
Warning: unable to open an initial console.
eth0: using half-duplex 10Base-T (RJ-45)
…
# cd /tmp
# ls
a pub
#cp pub /usr/bin [shell死掉,并且CTRL+C不能结束]
主机B情况172.16.17.239 LINUX版本fedora core 1
[root@Mike nfs]# uname -a
Linux Mike 2.4.22-1.2115.nptl #1 Wed Oct 29 15:42:51 EST 2003 i686 i686 i386 GNU/Linux
[root@Mike nfs]# nfsstat
Server rpc stats:
calls badcalls badauth badclnt xdrcall
127 0 0 0 0
Server nfs v2:
null getattr setattr root lookup readlink
0 0% 22 17% 0 0% 0 0% 7 5% 0 0%
read wrcache write create remove rename
91 71% 0 0% 0 0% 0 0% 0 0% 0 0%
link symlink mkdir rmdir readdir fsstat
0 0% 0 0% 0 0% 0 0% 3 2% 4 3%
Server nfs v3:
null getattr setattr lookup access readlink
0 0% 0 0% 0 0% 0 0% 0 0% 0 0%
read write create mkdir symlink mknod
0 0% 0 0% 0 0% 0 0% 0 0% 0 0%
remove rmdir rename link readdir readdirplus
0 0% 0 0% 0 0% 0 0% 0 0% 0 0%
fsstat fsinfo pathconf commit
0 0% 0 0% 0 0% 0 0%
[root@Mike root]# dmesg | grep nfs
Installing knfsd (copyright (C) 1996 okir@monad.swb.de).
[root@Mike nfs]# ifconfig
eth0 Link encap:Ethernet HWaddr 00:0C:293:92:FB
inet addr:172.16.17.239 Bcast:172.16.17.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:598759 errors:0 dropped:0 overruns:0 frame:0
TX packets:440654 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:54610713 (52.0 Mb) TX bytes:519366003 (495.3 Mb)
Interrupt:10 Base address:0x2000
…
运行3
#portmap [命令运行正常]
#mount -t nfs 172.16.17.239:/nfs /mnt && cd /mnt [命令运行正常并且立即返回]
#mount
/dev/mtdblock4 on / type romfs (ro)
/proc on /proc type proc (rw)
/dev/ram0 on /var type ext2 (rw)
/dev/mtdblock5 on /usr/bin type jffs (rw)
172.16.17.239:/nfs on /mnt type nfs (rw,v2,rsize=8192,wsize=8192,hard,udp,lock,addr=172.16.17.239)
# dmesg [无错误信息]
…
Creating 6 MTD partitions on "Flash":
0x00000000-0x00008000 : "lilo"
0x00008000-0x0000a000 : "config"
0x0000a000-0x0003a000 : "font"
0x0003a100-0x00180000 : "kernel"
0x00180100-0x002a0000 : "romfs"
0x002a0000-0x00400000 : "user"
NET4: Linux TCP/IP 1.0 for NET4.0
IP Protocols: ICMP, UDP, TCP
IP: routing cache hash table of 512 buckets, 4Kbytes
TCP: Hash tables configured (established 512 bind 512)
NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
VFS: tried fs_name = <ext2> err= 0
VFS: Mounted root (romfs filesystem) readonly.
Warning: unable to open an initial console.
eth0: using half-duplex 10Base-T (RJ-45)
…
# cd /tmp
# ls
a pub
# ./pub [命令大概运行1分钟,pub程序开始运行]
运行4
# portmap [命令运行正常]
# mount -t nfs 172.16.17.232:/pub /tmp -o nfsvers=2 [命令运行正常并且立即返回]
# dmesg [无错误信息]
…
# cd /tmp
# ls
a pub
#cp pub /usr/bin [根据flash的读写速度而定,命令能正常执行]
我不明白为何挂载在主机B上执行、拷贝都能成功,而在主机A上却不行???? |
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