Re: init process freezed after run_init_process

[rjy <rjy@angelltech.com>]

Thanks for kindly reply, :)

Jan Engelhardt wrote:
> > This is my grub config:
> > -----------------------------
> > root (hd0,0)
> > kernel /bzImage.via.386 root=/dev/ram0 rw ramdisk=49152
> > initrd /initrd.gz
> > -----------------------------
>
>
> Does it work if you add "  ramdisk=65536 init=/linuxrc " ?

No. I got the same problem without linuxrc.
As I mount ram0 as root, linuxrc is not necessary. Right?

> > returned OK: initrd decompressed properly and open_exec
> > returned non-zero.
>
>
> If you use k[g]db, you should be able to find out where the kernel actually 
> hangs.

After some digging, I found that the starting process of the VIA platform
and the intel platform is exactly the same:

1) checking if image is initramfs...it isn't (no cpio magic); looks like 
an initrd
   Freeing initrd memory: 9553k freed
2) loading drivers ...
3) RAMDISK: Compressed image found at block 0
   kjournald starting.  Commit interval 5 seconds
   EXT3 FS on ram0, internal journal
   EXT3-fs: mounted filesystem with ordered data mode.
   VFS: Mounted root (ext3 filesystem).
   Freeing unused kernel memory: 128k freed

If I put the same hard disk into a intel platform without any change, it
can start properly, loading the same initrd as rootfs.

And also, if I remote the initrd config in VIA platform and mount my 
hard disk as rootfs, it also works properly.

I missed some driver for VIA platform?  Why it can work without initrd?
My initrd has an invalid format? Why it can work on intel platform?
I am really confused...

After the starting process, the /sbin/init is loaded: I found that in
a breakpoint of do_schedule. It keeps scheduling init and pdflush.
I am still finding the way to debug the init process...

> Jan Engelhardt


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