Re: [PATCH 0/3] mainline and mmotm compaction fixes

[Michal Hocko]

On Mon 25-04-16 15:34:26, Vlastimil Babka wrote:
[...]
> > 1. Fix crash in release_pages() from compact_zone() from kcompactd_do_work():
> >     kcompactd needs to INIT_LIST_HEAD on the new freepages_held list.
> 
> This one should be addressed by dropping the following from mmotm from now:
> 
> mm-compaction-direct-freepage-allocation-for-async-direct-compaction.patch

I can confirm that this has healed
[  481.380167] BUG: unable to handle kernel NULL pointer dereference at           (null)
[  481.382594] IP: [<ffffffff81134dc7>] release_freepages+0x1c/0x7d

I was hitting today during testing something unrelated.
-- 
Michal Hocko
SUSE Labs