Re: 2.6.8-rc4-mm1

[William Lee Irwin III <wli@holomorphy.com>]

On Tue, Aug 10, 2004 at 03:45:32PM -0700, William Lee Irwin III wrote:
>> "whole affair" == NULL check in copy_thread(). Except this is a nop, so
>> I think we're just looking for something that survives copy_thread().

On Tue, Aug 10, 2004 at 04:03:57PM -0700, William Lee Irwin III wrote:
> I have an even better fix:
> +struct pt_regs * __init idle_regs(struct pt_regs *regs)
> +{
> +	return NULL;
> +}

Okay, this boots and runs here. I suspect if a non-NULL value of
pt_regs can be found that properly initializes things so copy_thread()
doesn't die and/or set up something that crashes on the AP, it can be
plugged in here transparently, the NULL check in copy_thread() removed,
and no core changes will be needed.

If you can advise on how to set up the switch_stack/bspstore/etc. to
this effect so it can be done right away, I'd be much obliged.


-- wli