Linux kernel bug fix: mm, page_alloc: fix check for NULL preferred_zone
Subsystem: memory (mm/page_alloc.c)
Bug type: hang, severity: medium
Files changed: include/linux/mmzone.h;mm/page_alloc.c
Introduced by Mel Gorman on 2016-05-19 19:12:14 -0700; fixed by Vlastimil Babka on 2017-01-24 16:26:14 -0800 (lifetime: 249 days)