Re: [PATCH] GDT table patch for resume only reboots problem

[Pavel Machek <pavel-+ZI9xUNit7I@public.gmane.org>]

Hi!

> > I hope most of machines can resume with;
> > 
> > Kernel 2.6.9 RC4
> > +wakeup_addr.patch
> > +wakeup_gdt.patch
> 
> Sorry, it doesn't work on my system :(
> It still reboots on
> 		mov	$(wakeup_stack - wakeup_code), %sp		# Private stack is needed for ASUS board
> 		movw	$0x0e00 + 'S', %fs:(0x12)
> 
> 		pushl	$0			#THIS LINE CAUSES REBOOT			# Kill any dangerous flags
> 		popfl
> 
> If I uncomment pushl and popfl it hangs(but not reboot, like going in an infinite loop) later, on
> 	wakeup_pmode_return:
> 		movw	$__KERNEL_DS, %ax
> 		movw	%ax, %ss           #HANGS HERE
> 		movw	%ax, %ds

Are you sure it hangs there? Your pushl $0 method to force reboot is
unlikely to be effective after %ss is set up properly... Which is this
point. [That beeping code might be handy here.]

Next thing you can try is replacing

        movw    %ax, %ss
        mov     $(wakeup_stack - wakeup_code), %sp              # Private stack is needed for ASUS board

with
	movw	$0x00, %ss		# Warning, will corrupt page #0 if you resume correctly
	movw	%ax, %ss
	movw	$2048, %ax
	movw	%ax, %sp

								Pavel

-- 
People were complaining that M$ turns users into beta-testers...
...jr ghea gurz vagb qrirybcref, naq gurl frrz gb yvxr vg gung jnl!


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