Re: 2.6.39.1 immediately reboots/resets on EFI system

[Maarten Lankhorst <m.b.lankhorst@gmail.com>]

Op 07-06-11 11:08, Maarten Lankhorst schreef:
> Hi,
>
> Op 07-06-11 04:05, Yinghai Lu schreef:
>> On 06/06/2011 06:41 PM, Matthew Garrett wrote:
>>> On Mon, Jun 06, 2011 at 05:19:17PM -0700, Yinghai Lu wrote:
>>>
>>>> assume EFI in ram is not page-aligned?
>>> They'll be 4K aligned at least.
>>>
>> can you get boot log with "memblock=debug"?
> Well that definitely helped me isolate things. It seems some ranges are reserved already.
> I added a simple patch to ignore the reservations there. Just a proof of concept,
> don't rate for style. :-)
>
> @@ -334,6 +343,10 @@ static void __init efi_free_boot_services(void)
>  		    md->type != EFI_BOOT_SERVICES_DATA)
>  			continue;
>  
> +		/* Could not reserve boot area */
> +		if (size)
Oops.
> +			continue;
> +
>  		free_bootmem_late(start, size);
>  	}
>  }
>
>
It seems the error still occurs when calling free_bootmem_late
even if I only reserve blocks that haven't been reserved yet.

~Maarten