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Commit a0795cd4 authored by Vlastimil Babka's avatar Vlastimil Babka Committed by Linus Torvalds
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mm, oom: print symbolic gfp_flags in oom warning 



It would be useful to translate gfp_flags into string representation
when printing in case of an OOM, especially as the flags have been
undergoing some changes recently and the script ./scripts/gfp-translate
needs a matching source version to be accurate.

Example output:

  a.out invoked oom-killer: gfp_mask=0x24280ca(GFP_HIGHUSER_MOVABLE|GFP_ZERO), order=0, om_score_adj=0

Signed-off-by: default avatarVlastimil Babka <vbabka@suse.cz>
Acked-by: default avatarMichal Hocko <mhocko@suse.com>
Acked-by: default avatarDavid Rientjes <rientjes@google.com>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Sasha Levin <sasha.levin@oracle.com>
Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Cc: Mel Gorman <mgorman@suse.de>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent c5c990e8

mm/oom_kill.c

+4 −3
Original line number Diff line number Diff line
@@ -386,10 +386,11 @@ static void dump_tasks(struct mem_cgroup *memcg, const nodemask_t *nodemask) 
static void dump_header(struct oom_control *oc, struct task_struct *p,

			struct mem_cgroup *memcg)

{

	pr_warning("%s invoked oom-killer: gfp_mask=0x%x, order=%d, "

	pr_warn("%s invoked oom-killer: gfp_mask=%#x(%pGg), order=%d, "

			"oom_score_adj=%hd\n",

		current->comm, oc->gfp_mask, oc->order,

		current->comm, oc->gfp_mask, &oc->gfp_mask, oc->order,

		current->signal->oom_score_adj);



	cpuset_print_current_mems_allowed();

	dump_stack();

	if (memcg)