The patch titled
Subject: mm, oom: print symbolic gfp_flags in oom warning
has been added to the -mm tree. Its filename is
mm-oom-print-symbolic-gfp_flags-in-oom-warning.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/mm-oom-print-symbolic-gfp_flags-in-oom-warning.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/mm-oom-print-symbolic-gfp_flags-in-oom-warning.patch
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------------------------------------------------------
From: Vlastimil Babka <vbabka@xxxxxxx>
Subject: 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: Vlastimil Babka <vbabka@xxxxxxx>
Acked-by: Michal Hocko <mhocko@xxxxxxxx>
Cc: Joonsoo Kim <iamjoonsoo.kim@xxxxxxx>
Cc: Minchan Kim <minchan@xxxxxxxxxx>
Cc: Sasha Levin <sasha.levin@xxxxxxxxxx>
Cc: "Kirill A. Shutemov" <kirill.shutemov@xxxxxxxxxxxxxxx>
Cc: Mel Gorman <mgorman@xxxxxxx>
Cc: David Rientjes <rientjes@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/oom_kill.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff -puN mm/oom_kill.c~mm-oom-print-symbolic-gfp_flags-in-oom-warning mm/oom_kill.c
--- a/mm/oom_kill.c~mm-oom-print-symbolic-gfp_flags-in-oom-warning
+++ a/mm/oom_kill.c
@@ -386,10 +386,11 @@ static void dump_tasks(struct mem_cgroup
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, "
- "oom_score_adj=%hd\n",
- current->comm, oc->gfp_mask, oc->order,
+ pr_warn("%s invoked oom-killer: gfp_mask=%#x(%pGg), order=%d, "
+ "oom_score_adj=%hd\n",
+ current->comm, oc->gfp_mask, &oc->gfp_mask, oc->order,
current->signal->oom_score_adj);
+
cpuset_print_current_mems_allowed();
dump_stack();
if (memcg)
_
Patches currently in -mm which might be from vbabka@xxxxxxx are
tracepoints-move-trace_print_flags-definitions-to-tracepoint-defsh.patch
mm-tracing-make-show_gfp_flags-up-to-date.patch
tools-perf-make-gfp_compact_table-up-to-date.patch
mm-tracing-unify-mm-flags-handling-in-tracepoints-and-printk.patch
mm-printk-introduce-new-format-string-for-flags.patch
mm-debug-replace-dump_flags-with-the-new-printk-formats.patch
mm-page_alloc-print-symbolic-gfp_flags-on-allocation-failure.patch
mm-oom-print-symbolic-gfp_flags-in-oom-warning.patch
mm-page_owner-print-migratetype-of-page-and-pageblock-symbolic-flags.patch
mm-page_owner-convert-page_owner_inited-to-static-key.patch
mm-page_owner-copy-page-owner-info-during-migration.patch
mm-page_owner-track-and-print-last-migrate-reason.patch
mm-page_owner-dump-page-owner-info-from-dump_page.patch
mm-debug-move-bad-flags-printing-to-bad_page.patch
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