On Wed, Apr 29, 2015 at 09:28:17PM +0800, Fengguang Wu wrote:
> Greetings,
>
> 0day kernel testing robot got the below dmesg and the first bad commit is
>
> git://git.kernel.org/pub/scm/linux/kernel/git/mel/linux-balancenuma mm-deferred-meminit-v6r1
>
> commit 285c36ab5b3e59865a0f4d79f4c1758455e684f7
> Author: Mel Gorman <mgorman@xxxxxxx>
> AuthorDate: Mon Sep 29 14:54:01 2014 +0100
> Commit: Mel Gorman <mgorman@xxxxxxx>
> CommitDate: Wed Apr 22 19:48:15 2015 +0100
>
> mm: meminit: Reduce number of times pageblocks are set during struct page init
>
> During parallel sturct page initialisation, ranges are checked for every
> PFN unnecessarily which increases boot times. This patch alters when the
> ranges are checked.
>
> Signed-off-by: Mel Gorman <mgorman@xxxxxxx>
>
The series is old but I think it's still relevant. Can you try this
please?
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 9c8f2a72263d..19543f708642 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -4489,8 +4489,8 @@ void __meminit memmap_init_zone(unsigned long size, int nid, unsigned long zone,
if (!(pfn & (pageblock_nr_pages - 1))) {
struct page *page = pfn_to_page(pfn);
- set_pageblock_migratetype(page, MIGRATE_MOVABLE);
__init_single_page(page, pfn, zone, nid);
+ set_pageblock_migratetype(page, MIGRATE_MOVABLE);
} else {
__init_single_pfn(pfn, zone, nid);
}
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