Hi Daniel, Thank you for the patch! Yet something to improve: [auto build test ERROR on next-20191209] [also build test ERROR on linus/master v5.5-rc1] [cannot apply to powerpc/next asm-generic/master v5.4] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system. BTW, we also suggest to use '--base' option to specify the base tree in git format-patch, please see https://stackoverflow.com/a/37406982] url: https://github.com/0day-ci/linux/commits/Daniel-Axtens/KASAN-for-powerpc64-radix-plus-generic-mm-change/20191210-171342 base: 6cf8298daad041cd15dc514d8a4f93ca3636c84e config: powerpc-allnoconfig (attached as .config) compiler: powerpc-linux-gcc (GCC) 7.5.0 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 GCC_VERSION=7.5.0 make.cross ARCH=powerpc If you fix the issue, kindly add following tag Reported-by: kbuild test robot <lkp@xxxxxxxxx> All error/warnings (new ones prefixed by >>): In file included from include/linux/printk.h:7:0, from include/linux/kernel.h:15, from arch/powerpc/kernel/prom.c:15: arch/powerpc/kernel/prom.c: In function 'early_reserve_mem': >> include/linux/kern_levels.h:5:18: error: format '%llu' expects argument of type 'long long unsigned int', but argument 3 has type 'phys_addr_t {aka unsigned int}' [-Werror=format=] #define KERN_SOH "\001" /* ASCII Start Of Header */ ^ include/linux/kern_levels.h:11:18: note: in expansion of macro 'KERN_SOH' #define KERN_ERR KERN_SOH "3" /* error conditions */ ^~~~~~~~ include/linux/printk.h:304:9: note: in expansion of macro 'KERN_ERR' printk(KERN_ERR pr_fmt(fmt), ##__VA_ARGS__) ^~~~~~~~ >> arch/powerpc/kernel/prom.c:694:4: note: in expansion of macro 'pr_err' pr_err("===========================================\n" ^~~~~~ arch/powerpc/kernel/prom.c:697:48: note: format string is defined here "The actual physical memory detected is %llu MB.\n" ~~~^ %u cc1: all warnings being treated as errors -- In file included from include/linux/printk.h:7:0, from include/linux/kernel.h:15, from arch/powerpc//kernel/prom.c:15: arch/powerpc//kernel/prom.c: In function 'early_reserve_mem': >> include/linux/kern_levels.h:5:18: error: format '%llu' expects argument of type 'long long unsigned int', but argument 3 has type 'phys_addr_t {aka unsigned int}' [-Werror=format=] #define KERN_SOH "\001" /* ASCII Start Of Header */ ^ include/linux/kern_levels.h:11:18: note: in expansion of macro 'KERN_SOH' #define KERN_ERR KERN_SOH "3" /* error conditions */ ^~~~~~~~ include/linux/printk.h:304:9: note: in expansion of macro 'KERN_ERR' printk(KERN_ERR pr_fmt(fmt), ##__VA_ARGS__) ^~~~~~~~ arch/powerpc//kernel/prom.c:694:4: note: in expansion of macro 'pr_err' pr_err("===========================================\n" ^~~~~~ arch/powerpc//kernel/prom.c:697:48: note: format string is defined here "The actual physical memory detected is %llu MB.\n" ~~~^ %u cc1: all warnings being treated as errors vim +/pr_err +694 arch/powerpc/kernel/prom.c 675 676 if (IS_ENABLED(CONFIG_KASAN) && IS_ENABLED(CONFIG_PPC_BOOK3S_64)) { 677 kasan_memory_size = 678 ((phys_addr_t)CONFIG_PHYS_MEM_SIZE_FOR_KASAN << 20); 679 680 if (top_phys_addr < kasan_memory_size) { 681 /* 682 * We are doomed. Attempts to call e.g. panic() are 683 * likely to fail because they call out into 684 * instrumented code, which will almost certainly 685 * access memory beyond the end of physical 686 * memory. Hang here so that at least the NIP points 687 * somewhere that will help you debug it if you look at 688 * it in qemu. 689 */ 690 while (true) 691 ; 692 } else if (top_phys_addr > kasan_memory_size) { 693 /* print a biiiig warning in hopes people notice */ > 694 pr_err("===========================================\n" 695 "Physical memory exceeds compiled-in maximum!\n" 696 "This kernel was compiled for KASAN with %u MB physical memory.\n" 697 "The actual physical memory detected is %llu MB.\n" 698 "Memory above the compiled limit will not be used!\n" 699 "===========================================\n", 700 CONFIG_PHYS_MEM_SIZE_FOR_KASAN, 701 top_phys_addr / (1024 * 1024)); 702 } 703 704 kasan_shadow_start = _ALIGN_DOWN(kasan_memory_size * 7 / 8, 705 PAGE_SIZE); 706 DBG("reserving %llx -> %llx for KASAN", 707 kasan_shadow_start, top_phys_addr); 708 memblock_reserve(kasan_shadow_start, 709 top_phys_addr - kasan_shadow_start); 710 } 711 } 712 --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx Intel Corporation
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