The patch titled
Subject: mm, page_alloc: print symbolic gfp_flags on allocation failure
has been added to the -mm tree. Its filename is
mm-page_alloc-print-symbolic-gfp_flags-on-allocation-failure.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/mm-page_alloc-print-symbolic-gfp_flags-on-allocation-failure.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/mm-page_alloc-print-symbolic-gfp_flags-on-allocation-failure.patch
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------------------------------------------------------
From: Vlastimil Babka <vbabka@xxxxxxx>
Subject: mm, page_alloc: print symbolic gfp_flags on allocation failure
It would be useful to translate gfp_flags into string representation when
printing in case of an allocation failure, 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:
stapio: page allocation failure: order:9, mode:0x2080020(GFP_ATOMIC)
Signed-off-by: Vlastimil Babka <vbabka@xxxxxxx>
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: Michal Hocko <mhocko@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/page_alloc.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff -puN mm/page_alloc.c~mm-page_alloc-print-symbolic-gfp_flags-on-allocation-failure mm/page_alloc.c
--- a/mm/page_alloc.c~mm-page_alloc-print-symbolic-gfp_flags-on-allocation-failure
+++ a/mm/page_alloc.c
@@ -2711,9 +2711,9 @@ void warn_alloc_failed(gfp_t gfp_mask, u
va_end(args);
}
- pr_warn("%s: page allocation failure: order:%u, mode:0x%x\n",
+ pr_warn("%s: page allocation failure: order:%u, mode:0x%x",
current->comm, order, gfp_mask);
-
+ dump_gfpflag_names(gfp_mask);
dump_stack();
if (!should_suppress_show_mem())
show_mem(filter);
_
Patches currently in -mm which might be from vbabka@xxxxxxx are
mm-fix-swapped-movable-and-reclaimable-in-proc-pagetypeinfo.patch
mm-documentation-clarify-proc-pid-status-vmswap-limitations-for-shmem.patch
mm-proc-account-for-shmem-swap-in-proc-pid-smaps.patch
mm-proc-reduce-cost-of-proc-pid-smaps-for-shmem-mappings.patch
mm-proc-reduce-cost-of-proc-pid-smaps-for-unpopulated-shmem-mappings.patch
mm-debug-fix-wrongly-filtered-flags-in-dump_vma.patch
mm-page_owner-print-symbolic-migratetype-of-both-page-and-pageblock.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-debug-introduce-dump_gfpflag_names-for-symbolic-printing-of-gfp_flags.patch
mm-page_owner-dump-page-owner-info-from-dump_page.patch
mm-page_alloc-print-symbolic-gfp_flags-on-allocation-failure.patch
mm-oom-print-symbolic-gfp_flags-in-oom-warning.patch
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