Re: [PATCH v2 3/4] mm: try to exhaust highatomic reserve before the OOM

2016-10-12 Thread Michal Hocko
On Wed 12-10-16 14:33:35, Minchan Kim wrote: > It's weird to show that zone has enough free memory above min > watermark but OOMed with 4K GFP_KERNEL allocation due to > reserved highatomic pages. As last resort, try to unreserve > highatomic pages again and if it has moved pages to > non-highatmoc

Re: [PATCH v2 3/4] mm: try to exhaust highatomic reserve before the OOM

2016-10-12 Thread Vlastimil Babka
On 10/12/2016 07:33 AM, Minchan Kim wrote: It's weird to show that zone has enough free memory above min watermark but OOMed with 4K GFP_KERNEL allocation due to reserved highatomic pages. As last resort, try to unreserve highatomic pages again and if it has moved pages to non-highatmoc free list