The patch titled
x86_64: fix partial page check to ensure unusable memory is not being marked usable.
has been added to the -mm tree. Its filename is
x86_64-fix-partial-page-check-to-ensure-unusable-memory-is-not-being-marked-usable.patch
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
------------------------------------------------------
Subject: x86_64: fix partial page check to ensure unusable memory is not being marked usable.
From: "Aaron Durbin" <adurbin@xxxxxxxxxx>
Fix partial page check in e820_register_active_regions to ensure partial
pages are not being marked as active in the memory pool.
This was causing a machine to reboot w/ an area in the e820 that was less
than the page size because the upper address was being use to mark a hole as
active in the memory pool.
Signed-off-by: Aaron Durbin <adurbin@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxx>
---
arch/x86_64/kernel/e820.c | 2 +-
1 files changed, 1 insertion(+), 1 deletion(-)
diff -puN arch/x86_64/kernel/e820.c~x86_64-fix-partial-page-check-to-ensure-unusable-memory-is-not-being-marked-usable arch/x86_64/kernel/e820.c
--- a/arch/x86_64/kernel/e820.c~x86_64-fix-partial-page-check-to-ensure-unusable-memory-is-not-being-marked-usable
+++ a/arch/x86_64/kernel/e820.c
@@ -278,7 +278,7 @@ e820_register_active_regions(int nid, un
>> PAGE_SHIFT;
/* Skip map entries smaller than a page */
- if (ei_startpfn > ei_endpfn)
+ if (ei_startpfn >= ei_endpfn)
continue;
/* Check if end_pfn_map should be updated */
_
Patches currently in -mm which might be from adurbin@xxxxxxxxxx are
x86_64-update-mmconfig-resource-insertion-to-check-against-e820-map.patch
x86_64-fix-partial-page-check-to-ensure-unusable-memory-is-not-being-marked-usable.patch
-
To unsubscribe from this list: send the line "unsubscribe mm-commits" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
