Hi Nitesh, [auto build test ERROR on kvm/linux-next] [also build test ERROR on v4.13 next-20170914] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] url: https://github.com/0day-ci/linux/commits/Nitesh-Narayan-Lal/KVM-Guest-page-hinting/20170915-021634 base: https://git.kernel.org/pub/scm/virt/kvm/kvm.git linux-next config: arm64-defconfig (attached as .config) compiler: aarch64-linux-gnu-gcc (Debian 6.1.1-9) 6.1.1 20160705 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # save the attached .config to linux build tree make.cross ARCH=arm64 All errors (new ones prefixed by >>): mm/page_alloc.o: In function `free_pages_prepare': >> mm/page_alloc.c:1057: undefined reference to `arch_free_page' mm/page_alloc.c:1057:(.text+0x16a4): relocation truncated to fit: R_AARCH64_CALL26 against undefined symbol `arch_free_page' mm/page_alloc.o: In function `post_alloc_hook': >> mm/page_alloc.c:1752: undefined reference to `arch_alloc_page' mm/page_alloc.c:1752:(.text+0x2324): relocation truncated to fit: R_AARCH64_CALL26 against undefined symbol `arch_alloc_page' mm/page_alloc.o: In function `free_pages_prepare': >> mm/page_alloc.c:1057: undefined reference to `arch_free_page' mm/page_alloc.c:1057:(.text+0x30e8): relocation truncated to fit: R_AARCH64_CALL26 against undefined symbol `arch_free_page' mm/page_alloc.o: In function `post_alloc_hook': >> mm/page_alloc.c:1752: undefined reference to `arch_alloc_page' mm/page_alloc.c:1752:(.text+0x3c1c): relocation truncated to fit: R_AARCH64_CALL26 against undefined symbol `arch_alloc_page' >> mm/page_alloc.c:1752: undefined reference to `arch_alloc_page' mm/page_alloc.c:1752:(.text+0x430c): relocation truncated to fit: R_AARCH64_CALL26 against undefined symbol `arch_alloc_page' vim +1057 mm/page_alloc.c 4db7548c Mel Gorman 2016-05-19 1005 e2769dbd Mel Gorman 2016-05-19 1006 static __always_inline bool free_pages_prepare(struct page *page, e2769dbd Mel Gorman 2016-05-19 1007 unsigned int order, bool check_free) 4db7548c Mel Gorman 2016-05-19 1008 { e2769dbd Mel Gorman 2016-05-19 1009 int bad = 0; 4db7548c Mel Gorman 2016-05-19 1010 4db7548c Mel Gorman 2016-05-19 1011 VM_BUG_ON_PAGE(PageTail(page), page); 4db7548c Mel Gorman 2016-05-19 1012 e2769dbd Mel Gorman 2016-05-19 1013 trace_mm_page_free(page, order); e2769dbd Mel Gorman 2016-05-19 1014 kmemcheck_free_shadow(page, order); 4db7548c Mel Gorman 2016-05-19 1015 e2769dbd Mel Gorman 2016-05-19 1016 /* e2769dbd Mel Gorman 2016-05-19 1017 * Check tail pages before head page information is cleared to e2769dbd Mel Gorman 2016-05-19 1018 * avoid checking PageCompound for order-0 pages. e2769dbd Mel Gorman 2016-05-19 1019 */ e2769dbd Mel Gorman 2016-05-19 1020 if (unlikely(order)) { e2769dbd Mel Gorman 2016-05-19 1021 bool compound = PageCompound(page); e2769dbd Mel Gorman 2016-05-19 1022 int i; e2769dbd Mel Gorman 2016-05-19 1023 e2769dbd Mel Gorman 2016-05-19 1024 VM_BUG_ON_PAGE(compound && compound_order(page) != order, page); e2769dbd Mel Gorman 2016-05-19 1025 9a73f61b Kirill A. Shutemov 2016-07-26 1026 if (compound) 9a73f61b Kirill A. Shutemov 2016-07-26 1027 ClearPageDoubleMap(page); e2769dbd Mel Gorman 2016-05-19 1028 for (i = 1; i < (1 << order); i++) { e2769dbd Mel Gorman 2016-05-19 1029 if (compound) e2769dbd Mel Gorman 2016-05-19 1030 bad += free_tail_pages_check(page, page + i); e2769dbd Mel Gorman 2016-05-19 1031 if (unlikely(free_pages_check(page + i))) { e2769dbd Mel Gorman 2016-05-19 1032 bad++; e2769dbd Mel Gorman 2016-05-19 1033 continue; e2769dbd Mel Gorman 2016-05-19 1034 } e2769dbd Mel Gorman 2016-05-19 1035 (page + i)->flags &= ~PAGE_FLAGS_CHECK_AT_PREP; e2769dbd Mel Gorman 2016-05-19 1036 } e2769dbd Mel Gorman 2016-05-19 1037 } bda807d4 Minchan Kim 2016-07-26 1038 if (PageMappingFlags(page)) 4db7548c Mel Gorman 2016-05-19 1039 page->mapping = NULL; c4159a75 Vladimir Davydov 2016-08-08 1040 if (memcg_kmem_enabled() && PageKmemcg(page)) 4949148a Vladimir Davydov 2016-07-26 1041 memcg_kmem_uncharge(page, order); e2769dbd Mel Gorman 2016-05-19 1042 if (check_free) e2769dbd Mel Gorman 2016-05-19 1043 bad += free_pages_check(page); e2769dbd Mel Gorman 2016-05-19 1044 if (bad) e2769dbd Mel Gorman 2016-05-19 1045 return false; 4db7548c Mel Gorman 2016-05-19 1046 e2769dbd Mel Gorman 2016-05-19 1047 page_cpupid_reset_last(page); e2769dbd Mel Gorman 2016-05-19 1048 page->flags &= ~PAGE_FLAGS_CHECK_AT_PREP; e2769dbd Mel Gorman 2016-05-19 1049 reset_page_owner(page, order); 4db7548c Mel Gorman 2016-05-19 1050 4db7548c Mel Gorman 2016-05-19 1051 if (!PageHighMem(page)) { 4db7548c Mel Gorman 2016-05-19 1052 debug_check_no_locks_freed(page_address(page), e2769dbd Mel Gorman 2016-05-19 1053 PAGE_SIZE << order); 4db7548c Mel Gorman 2016-05-19 1054 debug_check_no_obj_freed(page_address(page), e2769dbd Mel Gorman 2016-05-19 1055 PAGE_SIZE << order); 4db7548c Mel Gorman 2016-05-19 1056 } e2769dbd Mel Gorman 2016-05-19 @1057 arch_free_page(page, order); e2769dbd Mel Gorman 2016-05-19 1058 kernel_poison_pages(page, 1 << order, 0); e2769dbd Mel Gorman 2016-05-19 1059 kernel_map_pages(page, 1 << order, 0); 29b52de1 seokhoon.yoon 2016-05-20 1060 kasan_free_pages(page, order); 4db7548c Mel Gorman 2016-05-19 1061 4db7548c Mel Gorman 2016-05-19 1062 return true; 4db7548c Mel Gorman 2016-05-19 1063 } 4db7548c Mel Gorman 2016-05-19 1064 :::::: The code at line 1057 was first introduced by commit :::::: e2769dbdc51f1baa1908ecf6c84d50f19577e1db mm, page_alloc: don't duplicate code in free_pcp_prepare :::::: TO: Mel Gorman <mgorman@xxxxxxxxxxxxxxxxxxx> :::::: CC: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx> --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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