Re: init does not run on 405GP system

On Tue, 10 Jun 2003, Robert Schwebel wrote:

I'm currently porting u-boot and Linux to an IBM 405GP based board. The
problem is now that init seems not to be running and does not give any
output. Up to that point where init should make some noise the kernel
boots smoothly (serial console), I see all output and NFS-Root is
mounted via an Intel 82559 network chip. The kernel threads are also
running, I see kupdated & friends being put into the run queue from time
to time.

I have replaced /sbin/init by a statically linked "hello world" (which
also does not give any output). My impression is that the binary code of
the init ELF binary is never run. When I switch on the SHOW_SYSCALLs
macro in arch/ppc/kernel/entry.S I see the system calls for open(),
dup(), dup() and execve() which come from init/main.c. Opening the
console works, execve() to /sbin/init as well. When I follow the path of
execution up to load_elf_binary() in fs/binfmt_elf.c I can even see the
correct code being load and pointed to by elf_entry in that file. But
there is never any output from init, nor does something happen when I
replace init by a piece of code which should immediately make a zero
pointer exception.

This is probably not the issue, but you do have CONFIG_BINFMT_ELF
enabled in the kernel, don't you (although I would assume you would
get some kind of kernel error message when you tried to exec /sbin/init
if CONFIG_BINFMT_ELF wasn't enabled).

						-Bill

** Sent via the linuxppc-dev mail list. See http://lists.linuxppc.org/