This is a note to let you know that I've just added the patch titled mm/sparse.c: fix typo in online_mem_sections to the 4.13-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: mm-sparse.c-fix-typo-in-online_mem_sections.patch and it can be found in the queue-4.13 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. >From b4ccec41af82b5a5518c6534444412961894f07c Mon Sep 17 00:00:00 2001 From: Michal Hocko <mhocko@xxxxxxxx> Date: Fri, 8 Sep 2017 16:13:15 -0700 Subject: mm/sparse.c: fix typo in online_mem_sections From: Michal Hocko <mhocko@xxxxxxxx> commit b4ccec41af82b5a5518c6534444412961894f07c upstream. online_mem_sections() accidentally marks online only the first section in the given range. This is a typo which hasn't been noticed because I haven't tested large 2GB blocks previously. All users of pfn_to_online_page would get confused on the the rest of the pfn range in the block. All we need to fix this is to use iterator (pfn) rather than start_pfn. Link: http://lkml.kernel.org/r/20170904112210.3401-1-mhocko@xxxxxxxxxx Fixes: 2d070eab2e82 ("mm: consider zone which is not fully populated to have holes") Signed-off-by: Michal Hocko <mhocko@xxxxxxxx> Acked-by: Vlastimil Babka <vbabka@xxxxxxx> Cc: Anshuman Khandual <khandual@xxxxxxxxxxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> Signed-off-by: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- mm/sparse.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/mm/sparse.c +++ b/mm/sparse.c @@ -630,7 +630,7 @@ void online_mem_sections(unsigned long s unsigned long pfn; for (pfn = start_pfn; pfn < end_pfn; pfn += PAGES_PER_SECTION) { - unsigned long section_nr = pfn_to_section_nr(start_pfn); + unsigned long section_nr = pfn_to_section_nr(pfn); struct mem_section *ms; /* onlining code should never touch invalid ranges */ Patches currently in stable-queue which might be from mhocko@xxxxxxxx are queue-4.13/mm-memory.c-fix-mem_cgroup_oom_disable-call-missing.patch queue-4.13/mm-sparse.c-fix-typo-in-online_mem_sections.patch