Re: [PATCH v4] mm: page_alloc: dump migrate-failed pages

2021-03-11 Thread Minchan Kim
On Thu, Mar 11, 2021 at 07:53:01PM +0100, David Hildenbrand wrote: > On 11.03.21 19:30, Minchan Kim wrote: > > Currently, debugging CMA allocation failures is quite limited. > > The most commong source of these failures seems to be page > > s/commong/common/ Oops. > > > migration which doesn't

Re: [PATCH v4] mm: page_alloc: dump migrate-failed pages

2021-03-11 Thread David Hildenbrand
On 11.03.21 19:30, Minchan Kim wrote: Currently, debugging CMA allocation failures is quite limited. The most commong source of these failures seems to be page s/commong/common/ migration which doesn't provide any useful information on the reason of the failure by itself. alloc_contig_range

[PATCH v4] mm: page_alloc: dump migrate-failed pages

2021-03-11 Thread Minchan Kim
Currently, debugging CMA allocation failures is quite limited. The most commong source of these failures seems to be page migration which doesn't provide any useful information on the reason of the failure by itself. alloc_contig_range can report those failures as it holds a list of migrate-failed