Messages in this thread Patch in this message | | | From | Vlastimil Babka <> | Subject | [PATCH v4 07/14] mm, page_alloc: print symbolic gfp_flags on allocation failure | Date | Tue, 26 Jan 2016 13:45:46 +0100 |
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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@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> --- mm/page_alloc.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-)
diff --git a/mm/page_alloc.c b/mm/page_alloc.c index d60c8600e5f6..f89f51aae9a6 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -2691,9 +2691,8 @@ void warn_alloc_failed(gfp_t gfp_mask, unsigned int order, const char *fmt, ...) va_end(args); } - pr_warn("%s: page allocation failure: order:%u, mode:0x%x\n", - current->comm, order, gfp_mask); - + pr_warn("%s: page allocation failure: order:%u, mode:%#x(%pGg)\n", + current->comm, order, gfp_mask, &gfp_mask); dump_stack(); if (!should_suppress_show_mem()) show_mem(filter); -- 2.7.0
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