From: Vlastimil Babka <vbabka@suse.cz>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org,
Vlastimil Babka <vbabka@suse.cz>,
Joonsoo Kim <iamjoonsoo.kim@lge.com>,
Minchan Kim <minchan@kernel.org>,
Sasha Levin <sasha.levin@oracle.com>,
"Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>,
Mel Gorman <mgorman@suse.de>,
David Rientjes <rientjes@google.com>,
Michal Hocko <mhocko@suse.com>
Subject: [PATCH v4 08/14] mm, oom: print symbolic gfp_flags in oom warning
Date: Tue, 26 Jan 2016 13:45:47 +0100 [thread overview]
Message-ID: <1453812353-26744-9-git-send-email-vbabka@suse.cz> (raw)
In-Reply-To: <1453812353-26744-1-git-send-email-vbabka@suse.cz>
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@suse.cz>
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>
Acked-by: Michal Hocko <mhocko@suse.com>
Cc: David Rientjes <rientjes@google.com>
---
mm/oom_kill.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/mm/oom_kill.c b/mm/oom_kill.c
index 6ebc03511807..ce0d2c21e698 100644
--- a/mm/oom_kill.c
+++ b/mm/oom_kill.c
@@ -388,10 +388,11 @@ 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, "
- "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)
--
2.7.0
--
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next prev parent reply other threads:[~2016-01-26 12:46 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-01-26 12:45 [PATCH v4 00/14] mm flags in printk, page_owner improvements for debugging Vlastimil Babka
2016-01-26 12:45 ` [PATCH v4 01/14] tracepoints: move trace_print_flags definitions to tracepoint-defs.h Vlastimil Babka
2016-02-03 23:54 ` David Rientjes
2016-01-26 12:45 ` [PATCH v4 02/14] mm, tracing: make show_gfp_flags() up to date Vlastimil Babka
2016-02-03 23:55 ` David Rientjes
2016-01-26 12:45 ` [PATCH v4 03/14] tools, perf: make gfp_compact_table " Vlastimil Babka
2016-02-03 23:58 ` David Rientjes
2016-01-26 12:45 ` [PATCH v4 04/14] mm, tracing: unify mm flags handling in tracepoints and printk Vlastimil Babka
2016-01-26 12:45 ` [PATCH v4 05/14] mm, printk: introduce new format string for flags Vlastimil Babka
2016-01-26 12:45 ` [PATCH v4 06/14] mm, debug: replace dump_flags() with the new printk formats Vlastimil Babka
2016-02-04 0:04 ` David Rientjes
2016-01-26 12:45 ` [PATCH v4 07/14] mm, page_alloc: print symbolic gfp_flags on allocation failure Vlastimil Babka
2016-02-04 0:05 ` David Rientjes
2016-01-26 12:45 ` Vlastimil Babka [this message]
2016-02-04 0:01 ` [PATCH v4 08/14] mm, oom: print symbolic gfp_flags in oom warning David Rientjes
2016-01-26 12:45 ` [PATCH v4 09/14] mm, page_owner: print migratetype of page and pageblock, symbolic flags Vlastimil Babka
2016-01-26 12:45 ` [PATCH v4 10/14] mm, page_owner: convert page_owner_inited to static key Vlastimil Babka
2016-01-26 12:45 ` [PATCH v4 11/14] mm, page_owner: copy page owner info during migration Vlastimil Babka
2016-01-26 12:45 ` [PATCH v4 12/14] mm, page_owner: track and print last migrate reason Vlastimil Babka
2016-01-26 12:45 ` [PATCH v4 13/14] mm, page_owner: dump page owner info from dump_page() Vlastimil Babka
2016-01-26 12:45 ` [PATCH v4 14/14] mm, debug: move bad flags printing to bad_page() Vlastimil Babka
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