Kernel panic - not syncing: Attempted to kill init!

[史星星(研六 福州) <shixingxing@xxxxxxxxxxxxx>]

Hi,

         I got a problem when trying to boot linux 2.6.32.13 on my Octeon CN5650 board.

Booting logs below:

...omit….

EXT3-fs warning: maximal mount count reached, running e2fsck is recommended

kjournald starting.  Commit interval 5 seconds

EXT3 FS on mtdblock1, internal journal

EXT3-fs: recovery complete.

EXT3-fs: mounted filesystem with ordered data mode.

VFS: Mounted root (ext3 filesystem) on device 31:1.

Freeing unused kernel memory: 176k freed

Kernel panic - not syncing: Attempted to kill init!     ß kernel panic here

 

What I do:

1、The busybox init is OK in another version kernel .I replace init with “Hello world” prog or dead loop prog, kernel panic still.

2、

run_init_process(“/sbin/init”) à kernel_execve à sys_execve

so I add some debug msgs in sys_execve.

 

asmlinkage int sys_execve(nabi_no_regargs struct pt_regs regs)

{

         int error;

         char * filename;

 

    printk("enter sys_execve\n");

         filename = getname((char __user *) (long)regs.regs[4]);

         error = PTR_ERR(filename);

         if (IS_ERR(filename))

                   goto out;

         error = do_execve(filename, (char __user *__user *) (long)regs.regs[5],

                           (char __user *__user *) (long)regs.regs[6], &regs);

    putname(filename);

    printk("out sys_execve\n");

out:

         return error;

}

 

Boot logs:

VFS: Mounted root (ext3 filesystem) on device 31:1.

Freeing unused kernel memory: 176k freed

enter sys_execve

out sys_execve

Kernel panic - not syncing: Attempted to kill init!     ß kernel panic here

 

My question:

1.the kernel panic happened when return to userspace prog?

2.how to solve this problem?

 

Thank you!

 

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