Re: [2.6.27] overlapping early reservations [was: early exception - lockdep related?]

[Luca Tettamanti]

On Thu, Sep 4, 2008 at 10:51 PM, Luca Tettamanti <kronos.it@xxxxxxxxx> wrote:
> On Thu, Sep 4, 2008 at 4:25 PM, Peter Zijlstra <peterz@xxxxxxxxxxxxx> wrote:
>> Sadly your config just boots, albeit not to userspace due to missing
>> drivers.
>
> Yes, I managed to boot it with qemu... I tried kgdb - without luck -
> kernel dies too early.
> I also managed to get a stack trace :D
>
> http://img151.imageshack.us/my.php?image=tracedm1.jpg
>
> It seems that lockdep is an innocent bystander... the kernel died with
> panic() in __reserve_early, and then took another exception while
> printing the panic (I guess).
> Will add further debug stuff to see wtf is going on.

Hum, kernel says:

http://img177.imageshack.us/my.php?image=overlappingus2.jpg

Overlapping early reservations b98000-eff266 RAMDISK to 200000-d09cf7
TEXT DATA BSS

It would appear that the initramfs is overlapping the kernel itself,
is the boot loader (LILO) doing something stupid?

Luca
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