[U-Boot] Can't see NFS packages with wireshark

[Michael Schmid]

Hi!

I have:
Board: Artila M501 board with AT91RM9200
U-Boot: 1.1.2
Kernel: 2.6.14-M5
(I know that U-Boot and Kernel are quite old, but I think for my learning purposes it is OK... Will try to update later.)

My problem: I'm trying to run root-fs over nfs... I know that my nfs-server is OK, because I can mount from another linux-pc.
But I'm not able to mount nfs from my target-system. And I can't see any package from my target on wireshark which is running on the nfs-server -> So it seems that my target doesn't send any packet to the server or it get lost on my net....

Can you see any problem with my configuration? See configuration and bootlog below:


Configuration:

***************************
baudrate=115200
ethaddr=00:13:48:00:77:b5
rootpath=/opt/arm
lel=1
initrd=0x20800000,8192000 ramdisk_size=15360 root=/dev/ram0 rw
loader=tftp 21000000 m501_64M.alf
mtdparts=phys_mapped_flash:128k(loader)ro,128k(reserved)ro,1408k(linux)ro,2560(ramdisk)ro,-(userdisk) 

filesize=3A3
netmask=255.255.255.0
kernel=tftp 21000000 M501K;erase 10040000 1019ffff;cp.b 21000000 
10040000 $(filesize)
skernel=loadb 21000000;erase 10040000 1019ffff;cp.b 21000000 10040000 
$(filesize)
ramdisk=tftp 21000000 M501R;erase 101a0000 1041ffff;cp.b 21000000 
101a0000 $(filesize)
sramdisk=loadb 21000000;erase 101a0000 1041ffff;cp.b 21000000 101a0000 
$(filesize)
ipaddr=192.168.2.196
bootdelay=1
bargs=setenv bootargs mem=64M console=$(console),115200 
initrd=0x20800000,8192000 ramdisk_size=15360 root=/dev/ram0 rw 
mtdparts=phys_mapped_flash:128k(loader)ro,128k(env)ro,1408k(linux)ro,2560k(ramdisk)ro,-(userdisk) 

serverip=192.168.2.40
gateway=192.168.2.1
console=ttyS0  
bootargs=mem=64M root=/dev/nfs rw nfsroot=192.168.2.40:/opt/arm 
ip=192.168.2.196:192.168.2.40:192.168.2.1:255.255.255.0:kleiner_michi::off 
console=ttyS0,115200
bootcmd=bootm 10040000
stdin=serial
stdout=serial
stderr=serial
***************************

log:
***************************
Starting M501.............
Starting kernel ...
 
Uncompressing 
Linux............................................................................................... 
done, booting the kernel.
 Linux version 2.6.14-M5 (Alan at ace-yang) (gcc version 3.3.2) #837 Tue 
Aug 14 14:14:03 CST 2007
 CPU: ARM920Tid(wb) [41129200] revision 0 (ARMv4T)
 Machine: Artila M501 SOM
 Memory policy: ECC disabled, Data cache writeback
 Clocks: CPU 179 MHz, master 59 MHz, main 18.432 MHz
 CPU0: D VIVT write-back cache
 CPU0: I cache: 16384 bytes, associativity 64, 32 byte lines, 8 sets
 CPU0: D cache: 16384 bytes, associativity 64, 32 byte lines, 8 sets
 Built 1 zonelists
 Kernel command line: mem=64M root=/dev/nfs rw 
nfsroot=192.168.2.40:/opt/arm 
ip=192.168.2.196:192.168.2.40:192.168.2.1:255.255.255.0:kleiner_michi::off 
console=ttyS0,115200
 AT91: 128 gpio irqs in 4 banks
 PID hash table entries: 512 (order: 9, 8192 bytes)
 Console: colour dummy device 80x30
 Dentry cache hash table entries: 16384 (order: 4, 65536 bytes)
 Inode-cache hash table entries: 8192 (order: 3, 32768 bytes)
 Memory: 64MB = 64MB total
 Memory: 61824KB available (2389K code, 523K data, 104K init)
 Mount-cache hash table entries: 512
 CPU: Testing write buffer coherency: ok
 NET: Registered protocol family 16
 SCSI subsystem initialized
 usbcore: registered new driver usbfs
 usbcore: registered new driver hub
 NetWinder Floating Point Emulator V0.97 (extended precision)
 JFFS2 version 2.2. (NAND) (C) 2001-2003 Red Hat, Inc.
 Initializing Cryptographic API
 Matrix500 RTC driver.
 Matrix500 GPIO Driver Loaded.
 AT91 SPI driver loaded
 AT91 Watchdog Timer enabled (5 seconds)
 ttyS0 at MMIO 0xfefff200 (irq = 1) is a AT91_SERIAL
 ttyS1 at MMIO 0xfefc0000 (irq = 6) is a AT91_SERIAL
 ttyS2 at MMIO 0xfefc4000 (irq = 7) is a AT91_SERIAL
 ttyS3 at MMIO 0xfefc8000 (irq = 8) is a AT91_SERIAL
 ttyS4 at MMIO 0xfefcc000 (irq = 9) is a AT91_SERIAL
 io scheduler noop registered
 io scheduler anticipatory registered
 RAMDISK driver initialized: 16 RAM disks of 8192K size 1024 blocksize
 PPP generic driver version 2.4.2
 PPP BSD Compression module registered
 NET: Registered protocol family 24
 eth0: Link now 100-FullDuplex
 eth0: AT91 ethernet at 0xfefbc000 int=24 100-FullDuplex (00:13:48:00:77:b5)
 eth0: Davicom 9161AE PHY (Copper)
 physmap flash device: 1000000 at 10000000
 phys_mapped_flash: Found 1 x16 devices at 0x0 in 16-bit bank
  Intel/Sharp Extended Query Table at 0x010A
 Using buffer write method
 cfi_cmdset_0001: Erase suspend on write enabled
 RedBoot partition parsing not available
 block2mtd: version $Revision: 1.28 $
 at91rm9200-ohci at91rm9200-ohci: AT91RM9200 OHCI
 at91rm9200-ohci at91rm9200-ohci: new USB bus registered, assigned bus 
number 1
 at91rm9200-ohci at91rm9200-ohci: irq 23, io mem 0x00300000
 usb usb1: Product: AT91RM9200 OHCI
 usb usb1: Manufacturer: Linux 2.6.14-M5 ohci_hcd
 usb usb1: SerialNumber: at91rm9200
 hub 1-0:1.0: USB hub found
 hub 1-0:1.0: 2 ports detected
 usbcore: registered new driver cdc_acm
 drivers/usb/class/cdc-acm.c: v0.23:USB Abstract Control Model driver 
for USB modems and ISDN adapters
 usbcore: registered new driver usblp
 drivers/usb/class/usblp.c: v0.13: USB Printer Device Class driver
 Initializing USB Mass Storage driver...
 usbcore: registered new driver usb-storage
 USB Mass Storage support registered.
 rtusb init ====>
 usbcore: registered new driver rt73
 usbcore: registered new driver usbserial
 drivers/usb/serial/usb-serial.c: USB Serial support registered for Generic
 usbcore: registered new driver usbserial_generic
 drivers/usb/serial/usb-serial.c: USB Serial Driver core v2.0
 drivers/usb/serial/usb-serial.c: USB Serial support registered for FTDI 
USB Serial Device
 usbcore: registered new driver ftdi_sio
 drivers/usb/serial/ftdi_sio.c: v1.4.3:USB FTDI Serial Converters Driver
 drivers/usb/serial/usb-serial.c: USB Serial support registered for PL-2303
 usbcore: registered new driver pl2303
 drivers/usb/serial/pl2303.c: Prolific PL2303 USB to serial adaptor 
driver v0.12
 mice: PS/2 mouse device common for all mice
 i2c /dev entries driver
 Found AT91 i2c
 RTC found.
 AT91RM9200 MCI initialized
 NET: Registered protocol family 2
 IP route cache hash table entries: 1024 (order: 0, 4096 bytes)
 TCP established hash table entries: 4096 (order: 2, 16384 bytes)
 TCP bind hash table entries: 4096 (order: 2, 16384 bytes)
 TCP: Hash tables configured (established 4096 bind 4096)
 TCP reno registered
 ip_conntrack version 2.3 (512 buckets, 4096 max) - 240 bytes per conntrack
 ctnetlink v0.90: registering with nfnetlink.
 ip_tables: (C) 2000-2002 Netfilter core team
 ipt_recent v0.3.1: Stephen Frost <sfrost at snowman.net>.  
http://snowman.net/projects/ipt_recent/
 arp_tables: (C) 2002 David S. Miller
 TCP bic registered
 Netfilter messages via NETLINK v0.30.
 NET: Registered protocol family 1
 NET: Registered protocol family 17
 eth0: Link now 100-FullDuplex
 IP-Config: Complete:
       device=eth0, addr=192.168.2.196, mask=255.255.255.0, gw=192.168.2.1,
      host=kleiner_michi, domain=, nis-domain=(none),
      bootserver=192.168.2.40, rootserver=192.168.2.40, rootpath=
 VFS: Cannot open root device "nfs" or unknown-block(0,255)
 Please append a correct "root=" boot option
 Kernel panic - not syncing: VFS: Unable to mount root fs on 
unknown-block(0,255)
***************************

Regards!
Michael