Re: 2.6.7-mm6

David S. Miller
2004-07-07T21:06:14Z

On Wed, 7 Jul 2004 09:35:10 +0200
Ingo Molnar <mingo@elte.hu> wrote:

> the patch below should solve this. Is it safe on sparc to do a
> fork_by_hand() like this?

If the regs are garbage, copy_thread() will explode as it tries
to interpret the stack pointer in that regs value.

The parent's regs (stored in current_thread_info() at trap time,
and also needed by copy_thread() processing) will also be garbage
since we're avoiding the fork syscall trap.

In short, this won't work :)

This is why I use kernel_thread(). Why is that so bad?