On Fri, Mar 17, 2006 at 03:36:50PM +0530, Vadivelan@xxxxxxxxxxxx wrote: > I'm porting a 64-bit linux kernel provided for a mips4 > architecture to a mips3 target board. The existing NFS root file system > has been compiled for a 64-bit mips4 architecture. > If I mount this file system, the init does not run. > After mounting the filesystem, I get the following messages and the > kernel hangs. > > ------------------------------------------------- > Looking up port of RPC 100003/2 on 192.168.5.93 > Looking up port of RPC 100005/1 on 192.168.5.93 > VFS: Mounted root (nfs filesystem). > Freeing unused kernel memory: 132k freed That's a rather generic kind of death uppon entry of userspace sympthom, so I cannot really give alot of advice other than below: > I also tried to mount a 32-bit working NFS root filesystem. > Still I get the same problem. I thought 32-bit binaries will execute > fine in 64-bit kernel. They do - but you need to enable 32-bit compatibility: CONFIG_MIPS32_COMPAT=y CONFIG_MIPS32_O32=y And if you have an N32 root filesystem (unlikely) you also have to set CONFIG_MIPS32_N32=y. > Do I have to recompile the binutils and glibc for my target file system? No. The entire software should just work. > Kindly ignore the confidentiality notice attached at the end of the > mail. It is an automatically generated one and I cannot remove it.I'm > extremely sorry for the inconvenience. We're fabulous at ignoring things ;-) Ralf