# Re: Fail to boot 5.15 on mpc8347 with either debug\_pagealloc or nobats

- From: Christophe Leroy \<hidden\>
- Date: 2021-12-06 09:08:11 
- List: linuxppc-dev
- Page: https://ratatoskr.run/linuxppc-dev/2021/12/9525442
- Thread: https://ratatoskr.run/linuxppc-dev/2021/12/9525426/t.md

```text


Le 06/12/2021 à 09:47, Maxime Bizon a écrit :
> 
> On Mon, 2021-12-06 at 07:03 +0000, Christophe Leroy wrote:
> 
>> Is it worth it ? I have the feeling that's more a corner case.
> 
> probably not since it's not an easy fix
> 
> I'm running on the edge wrt BAT usage on my 2GB board, it's not that
> common I guess.
> 

Looks like you can win something if you take the patch I just sent and 
replace the memblock_phys_alloc(k_size, k_size) by 
memblock_phys_alloc_range(k_size, k_size, 0, MEMBLOCK_ALLOC_ANYWHERE)
```