On Thu, Feb 27, 2020 at 06:33:14AM +0800, kbuild test robot wrote: > url: https://github.com/0day-ci/linux/commits/Catalin-Marinas/arm64-Memory-Tagging-Extension-user-space-support/20200227-041230 > base: https://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc.git for-next > config: x86_64-defconfig (attached as .config) > compiler: gcc-7 (Debian 7.5.0-5) 7.5.0 > reproduce: > # save the attached .config to linux build tree > make ARCH=x86_64 > > 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/export.h:43:0, > from include/linux/linkage.h:7, > from arch/x86/include/asm/cache.h:5, > from include/linux/cache.h:6, > from include/linux/time.h:5, > from include/linux/compat.h:10, > from arch/x86/kernel/signal_compat.c:2: > In function 'signal_compat_build_tests', > inlined from 'sigaction_compat_abi' at arch/x86/kernel/signal_compat.c:166:2: > >> include/linux/compiler.h:350:38: error: call to '__compiletime_assert_30' declared with attribute error: BUILD_BUG_ON failed: NSIGSEGV != 7 I haven't realised that x86 has a build check for NSIGSEGV. I'll fold in the diff below (there are no new fields added to siginfo, so no other changes necessary): diff --git a/arch/x86/kernel/signal_compat.c b/arch/x86/kernel/signal_compat.c index 9ccbf0576cd0..a7f3e12cfbdb 100644 --- a/arch/x86/kernel/signal_compat.c +++ b/arch/x86/kernel/signal_compat.c @@ -27,7 +27,7 @@ static inline void signal_compat_build_tests(void) */ BUILD_BUG_ON(NSIGILL != 11); BUILD_BUG_ON(NSIGFPE != 15); - BUILD_BUG_ON(NSIGSEGV != 7); + BUILD_BUG_ON(NSIGSEGV != 9); BUILD_BUG_ON(NSIGBUS != 5); BUILD_BUG_ON(NSIGTRAP != 5); BUILD_BUG_ON(NSIGCHLD != 6); -- Catalin
