tree: https://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-integrator.git kernel-in-vmalloc-v5.12-rc1 head: 7b99ca2d1494c9431f36164db472b70852ad9bf6 commit: 7b99ca2d1494c9431f36164db472b70852ad9bf6 [6/6] ARM: kernel in vmalloc config: arm-randconfig-r005-20210412 (attached as .config) compiler: arm-linux-gnueabi-gcc (GCC) 9.3.0 reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # https://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-integrator.g... git remote add arm-integrator https://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-integrator.git git fetch --no-tags arm-integrator kernel-in-vmalloc-v5.12-rc1 git checkout 7b99ca2d1494c9431f36164db472b70852ad9bf6 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=arm If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All warnings (new ones prefixed by >>): In file included from arch/arm/include/asm/memory.h:455, from arch/arm/include/asm/page.h:160, from arch/arm/include/asm/thread_info.h:14, from include/linux/thread_info.h:58, from include/asm-generic/preempt.h:5, from ./arch/arm/include/generated/asm/preempt.h:1, from include/linux/preempt.h:78, from include/linux/spinlock.h:51, from include/linux/mmzone.h:8, from include/linux/gfp.h:6, from lib/test_free_pages.c:10: lib/test_free_pages.c: In function 'test_free_pages': 20 | struct page *page = virt_to_page(addr); | ^~~~ | | | long unsigned int include/asm-generic/memory_model.h:33:41: note: in definition of macro '__pfn_to_page' 33 | #define __pfn_to_page(pfn) (mem_map + ((pfn) - ARCH_PFN_OFFSET)) | ^~~ lib/test_free_pages.c:20:23: note: in expansion of macro 'virt_to_page' 20 | struct page *page = virt_to_page(addr); | ^~~~~~~~~~~~ In file included from arch/arm/include/asm/page.h:160, from arch/arm/include/asm/thread_info.h:14, from include/linux/thread_info.h:58, from include/asm-generic/preempt.h:5, from ./arch/arm/include/generated/asm/preempt.h:1, from include/linux/preempt.h:78, from include/linux/spinlock.h:51, from include/linux/mmzone.h:8, from include/linux/gfp.h:6, from lib/test_free_pages.c:10: arch/arm/include/asm/memory.h:331:53: note: expected 'const void *' but argument is of type 'long unsigned int' 331 | static inline unsigned long virt_to_pfn(const void *kaddr) | ~~~~~~~~~~~~^~~~~ vim +/virt_to_pfn +20 lib/test_free_pages.c e320d3012d25b1 Matthew Wilcox (Oracle 2020-10-13 13) e320d3012d25b1 Matthew Wilcox (Oracle 2020-10-13 14) static void test_free_pages(gfp_t gfp) e320d3012d25b1 Matthew Wilcox (Oracle 2020-10-13 15) { e320d3012d25b1 Matthew Wilcox (Oracle 2020-10-13 16) unsigned int i; e320d3012d25b1 Matthew Wilcox (Oracle 2020-10-13 17) e320d3012d25b1 Matthew Wilcox (Oracle 2020-10-13 18) for (i = 0; i < 1000 * 1000; i++) { e320d3012d25b1 Matthew Wilcox (Oracle 2020-10-13 19) unsigned long addr = __get_free_pages(gfp, 3); e320d3012d25b1 Matthew Wilcox (Oracle 2020-10-13 @20) struct page *page = virt_to_page(addr); e320d3012d25b1 Matthew Wilcox (Oracle 2020-10-13 21) e320d3012d25b1 Matthew Wilcox (Oracle 2020-10-13 22) /* Simulate page cache getting a speculative reference */ e320d3012d25b1 Matthew Wilcox (Oracle 2020-10-13 23) get_page(page); e320d3012d25b1 Matthew Wilcox (Oracle 2020-10-13 24) free_pages(addr, 3); e320d3012d25b1 Matthew Wilcox (Oracle 2020-10-13 25) put_page(page); e320d3012d25b1 Matthew Wilcox (Oracle 2020-10-13 26) } e320d3012d25b1 Matthew Wilcox (Oracle 2020-10-13 27) } e320d3012d25b1 Matthew Wilcox (Oracle 2020-10-13 28) :::::: The code at line 20 was first introduced by commit :::::: e320d3012d25b1fb5f3df4edb7bd44a1c362ec10 mm/page_alloc.c: fix freeing non-compound pages :::::: TO: Matthew Wilcox (Oracle) <willy(a)infradead.org&gt; :::::: CC: Linus Torvalds <torvalds(a)linux-foundation.org&gt; --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org