Subject: Re: Boot failures with "mm/sparse: Remove CONFIG_SPARSEMEM_ALLOC_MEM_MAP_TOGETHER" on powerpc (was Re: mmotm 2018-07-10-16-50 uploaded)

From: Oscar Salvador <[email-masked]>
Date: Wed, 11 Jul 2018 15:37:37 +0200

On Wed, Jul 11, 2018 at 10:49:58PM +1000, Michael Ellerman wrote:
> [email-masked] writes:
> > The mm-of-the-moment snapshot 2018-07-10-16-50 has been uploaded to
> >
> >    http://www.ozlabs.org/~akpm/mmotm/
> ...
> 
> > * mm-sparse-add-a-static-variable-nr_present_sections.patch
> > * mm-sparsemem-defer-the-ms-section_mem_map-clearing.patch
> > * mm-sparsemem-defer-the-ms-section_mem_map-clearing-fix.patch
> > * mm-sparse-add-a-new-parameter-data_unit_size-for-alloc_usemap_and_memmap.patch
> > * mm-sparse-optimize-memmap-allocation-during-sparse_init.patch
> > * mm-sparse-optimize-memmap-allocation-during-sparse_init-checkpatch-fixes.patch
> 
> > * mm-sparse-remove-config_sparsemem_alloc_mem_map_together.patch
> 
> This seems to be breaking my powerpc pseries qemu boots.
> 
> The boot log with some extra debug shows eg:
> 
>   $ make pseries_le_defconfig

Could you please share the config?
I was not able to find such config in the kernel tree.
-- 
Oscar Salvador
SUSE L3