Hello,
(2012/06/26 9:50), Tetsuyuki Kobayashi wrote:
(06/26/2012 06:34 AM), Wolfgang Denk wrote:
In message4FE85B13.5080902@kmckk.co.jp you wrote:
I tried nfs command on KZM-A9-GT board and it fails every time with "ERROR: Cannot umount".
KZM-A9-GT board? This is an out of tree port, isn't it?
Not yet, but trying now.
Are you sure the problems are not in the board specific code?
OK. I will try the same thing on an in-tree board (maybe, panda board) to check if this is board specific or not.
I did on a panda board. It has the same problem and this patch solves it. So this is not board specific problem. Please consider to change global setting of NFS_TIMEOUT in nfs.c. I hope someone else tries nfs command on the other board.
Following is the detail I did:
The default config of pand board disables NFS command. So add this line in omap4_panda.h #define COFNIG_CMD_NFS (This line must be after #include configs/omap4_common.h>
I had trouble to use network on a panda board at the source from u-boot master git. Instead, I used source code from Linaro git. (I think this is another issue. Just focus NFS timeout now.)
Before applying the patch: error occurs like this.
Panda # usb start (Re)start USB... USB: Register 1313 NbrPorts 3 USB EHCI 1.00 scanning bus for devices... 3 USB Device(s) found scanning bus for storage devices... 0 Storage Device(s) found scanning bus for ethernet devices... 1 Ethernet Device(s) found Panda # setenv ipaddr 192.168.1.162 Panda # setenv serverip 192.168.1.110 Panda # nfs /export/tmp/uImage Waiting for Ethernet connection... done. Using sms0 device File transfer via NFS from server 192.168.1.110; our IP address is 192.168.1.162 Filename '/export/tmp/uImage'. Load address: 0x82000000 Loading: ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ##############################################T T *** ERROR: Cannot umount Panda #
After applying the patch: it seems OK.
Panda # usb start (Re)start USB... USB: Register 1313 NbrPorts 3 USB EHCI 1.00 scanning bus for devices... 3 USB Device(s) found scanning bus for storage devices... 0 Storage Device(s) found scanning bus for ethernet devices... 1 Ethernet Device(s) found Panda # setenv ipaddr 192.168.1.162 Panda # setenv serverip 192.168.1.110 Panda # nfs /export/tmp/uImage Waiting for Ethernet connection... done. Using sms0 device File transfer via NFS from server 192.168.1.110; our IP address is 192.168.1.162 Filename '/export/tmp/uImage'. Load address: 0x82000000 Loading: ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ################################################################# ############################################## done Bytes transferred = 2230644 (220974 hex) Panda #
-- Tetsuyuki Kobayashi