Hi,

I download the kernel 2.6.18 from
 http://source.mvista.com/git/?p=linux-davinci-2.6.git;a=summary. 

This version and upper start to support ZyDas 1211b based WiFi dongle. I
build this kernel with davinci_evm_dm644x_defconfig. 

I use the NFS as the root file system. Following is my bootargs: 

bootargs=console=ttyS0,115200n8 noinitrd rw
ip=10.100.8.21:192.168.1.22:10.100.8.1:255.255.254.0 root=/dev/nfs
nfsroot=10.100.8.76:/home/xrchen/target/,nolock mem=120M
video=dm64xxfb:output=pal

I have 2.6.10 work on dvevm and current root file system also works well. So
I rebuild the kernel 2.6.18 and try to use the same root file system. 

When get into u-boot, I've tried following commands:
1. tftp 80700000 uImage.2.6.18
2. using upper bootargs

But I get following error message: 

physmap platform flash device: 01000000 at 02000000
physmap-flash physmap-flash.0: map_probe failed
mice: PS/2 mouse device common for all mice
TCP bic registered
NET: Registered protocol family 1
NET: Registered protocol family 17
IP-Config: Complete:
      device=eth0, addr=10.100.8.21, mask=255.255.254.0, gw=10.100.8.1,
     host=10.100.8.21, domain=, nis-domain=(none),
     bootserver=192.168.1.22, rootserver=10.100.8.76, rootpath=
Looking up port of RPC 100003/2 on 10.100.8.76
portmap: server 10.100.8.76 not responding, timed out
Root-NFS: Unable to get nfsd port number from server, using default
Looking up port of RPC 100005/1 on 10.100.8.76
portmap: server 10.100.8.76 not responding, timed out
Root-NFS: Unable to get mountd port number from server, using default
 
It seems unable to mount VFS. After several tries, finally I get kernel
panic. 

Could any kind guy help me? Just give some hint is very appreciated. 


----------------------------------------
Best Regards,
Tang, Jiyu



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