我尝试着将2.6.36的内核移植到mini2440开发板，现在卡在一个问题上，内核无法从NFS挂载根文件系统，由于是刚开始读内核，关于NFS那部分头都看晕了，没搞清头绪，故来论坛求救，我把调试信息打印出来，如下：
eth0: link down
IP-Config: Guessing netmask 255.255.255.0
IP-Config: Complete:
device=eth0, addr=192.168.1.120, mask=255.255.255.0, gw=255.255.255.255,
host=192.168.1.120, domain=, nis-domain=(none),
bootserver=255.255.255.255, rootserver=192.168.1.110, rootpath=
Root-NFS: Mounting /home/rootfs/ on server 192.168.1.110 as root
Root-NFS: rsize = 4096, wsize = 4096, timeo = 0, retrans = 0
Root-NFS: acreg (min,max) = (3,60), acdir (min,max) = (30,60)
Root-NFS: nfsd port = -1, mountd port = 0, flags = 00000200
Looking up port of RPC 100003/2 on 192.168.1.110
RPC: rpcb_getport_sync(192.168.1.110, 100003, 2, 17)
RPC: creating rpcbind client for 192.168.1.110 (xprt c38aa800)
RPC: new task initialized, procpid 1
RPC: allocated task c39f3c80
RPC: 1 __rpc_execute flags=0x280
RPC: 1 call_start rpcbind2 proc GETPORT (sync)
RPC: 1 allocated buffer of size 412 at c38ab000
RPC: 1 call_connect xprt c38aa800 is not connected
RPC: 1 sleep_on(queue "xprt_pending" time 4294908088)
RPC: 1 added to queue c38aa9ac "xprt_pending"
RPC: 1 setting alarm for 5000 ms
RPC: 1 sync task going to sleep
RPC: 1 __rpc_wake_up_task (now 4294908092)
RPC: 1 disabling timer
RPC: 1 removed from queue c38aa9ac "xprt_pending"
RPC: __rpc_wake_up_task done
RPC: 1 sync task resuming
RPC: 1 sleep_on(queue "xprt_pending" time 4294908095)
RPC: 1 added to queue c38aa9ac "xprt_pending"
RPC: 1 setting alarm for 5000 ms
RPC: 1 sync task going to sleep
eth0: link up, 100Mbps, full-duplex, lpa 0x4DE1
RPC: 1 timeout
RPC: 1 __rpc_wake_up_task (now 4294909100)
RPC: 1 disabling timer
RPC: 1 removed from queue c38aa9ac "xprt_pending"
RPC: __rpc_wake_up_task done
RPC: 1 sync task resuming
RPC: wake_up_next(c38aa954 "xprt_resend")
RPC: wake_up_next(c38aa8fc "xprt_sending")
RPC: 1 call_timeout (minor)
RPC: 1 call_connect xprt c38aa800 is connected
RPC: 1 sleep_on(queue "xprt_pending" time 4294909105)
RPC: 1 added to queue c38aa9ac "xprt_pending"
RPC: 1 setting alarm for 10000 ms
RPC: 1 sync task going to sleep
RPC: 1 timeout
这是一部分信息，问题就是出在超时部分，关于进程调度还没有搞熟，故看内核关于进程调度部分看头大了，哪们高手熟悉NFS/RPC相关的东东啊，谢谢！！
