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On 10 June 2003 23:16, Robert Schwebel wrote: > Hi, > > 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. > > Nevertheless, the kernel runs smoothly. I can ping the machine, I can > even floodping it with 0% packet loss. Only that there is no userspace > running. > > Has anybody seen something like this before? Yes. I once tried to run 686 based libc on a 486, init was rained upon by SIGILLs 'coz it had 586+ instructions. No output on the screen whatsoever. -- vda - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/ | |||||||||
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