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Date: Thu, 27 Apr 2023 09:48:06 -0700 From: "Paul E. McKenney" <paulmck@...nel.org> To: kernel test robot <lkp@...el.com> Cc: linux-kernel@...r.kernel.org Subject: Re: [paulmck-rcu:dev.2023.04.26a] BUILD REGRESSION 56b38a90a12f76e463a7381d8cff854926fa2b59 On Fri, Apr 28, 2023 at 12:28:05AM +0800, kernel test robot wrote: > tree/branch: https://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git dev.2023.04.26a > branch HEAD: 56b38a90a12f76e463a7381d8cff854926fa2b59 rcu-tasks: Stop rcu_tasks_invoke_cbs() from using never-onlined CPUs > > Error/Warning reports: > > https://lore.kernel.org/oe-kbuild-all/202304271412.cbmTIpbf-lkp@intel.com > https://lore.kernel.org/oe-kbuild-all/202304271416.DjRKPeoJ-lkp@intel.com > https://lore.kernel.org/oe-kbuild-all/202304271446.dk8ruOnO-lkp@intel.com > https://lore.kernel.org/oe-kbuild-all/202304271448.5uG6ip4V-lkp@intel.com > https://lore.kernel.org/oe-kbuild-all/202304271836.Rr0pBtSE-lkp@intel.com > > Error/Warning: (recently discovered and may have been fixed) > > arch/arm/kernel/smp.c:385:1: warning: function declared 'noreturn' should not return [-Winvalid-noreturn] > arch/loongarch/kernel/process.c:68:1: warning: 'noreturn' function does return > arch/powerpc/kernel/smp.c:1768:1: error: function declared 'noreturn' should not return [-Werror,-Winvalid-noreturn] > arch/x86/kernel/nmi.c:441:6: warning: no previous prototype for 'set_nmi_torture' [-Wmissing-prototypes] > arch/x86/kernel/nmi.c:441:6: warning: no previous prototype for function 'set_nmi_torture' [-Wmissing-prototypes] These appear to be from some other commits, some of which are admittedly my debug commits. > Unverified Error/Warning (likely false positive, please contact us if interested): > > kernel/rcu/tree.c:2149 rcu_do_batch() error: uninitialized symbol 'jlimit'. This is a false positive, as discussed recently with Dan Carpenter: https://lore.kernel.org/all/90f95e84-842c-4273-90a3-93afd5353fd2@kili.mountain/ Thanx, Paul > Error/Warning ids grouped by kconfigs: > > gcc_recent_errors > |-- i386-randconfig-a001 > | `-- arch-x86-kernel-nmi.c:warning:no-previous-prototype-for-set_nmi_torture > |-- i386-randconfig-c001 > | `-- arch-x86-kernel-nmi.c:warning:no-previous-prototype-for-set_nmi_torture > |-- i386-randconfig-m021 > | |-- arch-x86-kernel-nmi.c:warning:no-previous-prototype-for-set_nmi_torture > | `-- kernel-rcu-tree.c-rcu_do_batch()-error:uninitialized-symbol-jlimit-. > |-- loongarch-randconfig-r012-20230427 > | `-- arch-loongarch-kernel-process.c:warning:noreturn-function-does-return > |-- x86_64-kexec > | `-- arch-x86-kernel-nmi.c:warning:no-previous-prototype-for-set_nmi_torture > |-- x86_64-randconfig-a011 > | `-- arch-x86-kernel-nmi.c:warning:no-previous-prototype-for-set_nmi_torture > |-- x86_64-randconfig-a013 > | `-- arch-x86-kernel-nmi.c:warning:no-previous-prototype-for-set_nmi_torture > |-- x86_64-randconfig-a015 > | `-- arch-x86-kernel-nmi.c:warning:no-previous-prototype-for-set_nmi_torture > |-- x86_64-randconfig-c002 > | `-- arch-x86-kernel-nmi.c:warning:no-previous-prototype-for-set_nmi_torture > `-- x86_64-randconfig-m001 > `-- arch-x86-kernel-nmi.c:warning:no-previous-prototype-for-set_nmi_torture > clang_recent_errors > |-- arm-milbeaut_m10v_defconfig > | `-- arch-arm-kernel-smp.c:warning:function-declared-noreturn-should-not-return > |-- i386-allnoconfig > | `-- arch-x86-kernel-nmi.c:warning:no-previous-prototype-for-function-set_nmi_torture > |-- powerpc-buildonly-randconfig-r003-20230427 > | `-- arch-powerpc-kernel-smp.c:error:function-declared-noreturn-should-not-return-Werror-Winvalid-noreturn > |-- x86_64-randconfig-a005 > | `-- arch-x86-kernel-nmi.c:warning:no-previous-prototype-for-function-set_nmi_torture > |-- x86_64-randconfig-a014 > | `-- arch-x86-kernel-nmi.c:warning:no-previous-prototype-for-function-set_nmi_torture > `-- x86_64-randconfig-a016 > `-- arch-x86-kernel-nmi.c:warning:no-previous-prototype-for-function-set_nmi_torture > > elapsed time: 723m > > configs tested: 109 > configs skipped: 9 > > tested configs: > alpha allyesconfig gcc > alpha defconfig gcc > arc allyesconfig gcc > arc axs101_defconfig gcc > arc defconfig gcc > arc randconfig-r002-20230427 gcc > arc randconfig-r043-20230427 gcc > arc vdk_hs38_defconfig gcc > arm allmodconfig gcc > arm allyesconfig gcc > arm buildonly-randconfig-r006-20230427 gcc > arm defconfig gcc > arm imxrt_defconfig gcc > arm milbeaut_m10v_defconfig clang > arm netwinder_defconfig clang > arm randconfig-r011-20230427 gcc > arm randconfig-r046-20230427 gcc > arm64 allyesconfig gcc > arm64 defconfig gcc > csky defconfig gcc > csky randconfig-r015-20230427 gcc > hexagon buildonly-randconfig-r003-20230427 clang > hexagon randconfig-r003-20230427 clang > hexagon randconfig-r004-20230427 clang > hexagon randconfig-r041-20230427 clang > hexagon randconfig-r045-20230427 clang > i386 allnoconfig clang > i386 allyesconfig gcc > i386 debian-10.3 gcc > i386 defconfig gcc > i386 randconfig-a001 gcc > i386 randconfig-a002 clang > i386 randconfig-a003 gcc > i386 randconfig-a004 clang > i386 randconfig-a005 gcc > i386 randconfig-a006 clang > i386 randconfig-a011 clang > i386 randconfig-a012 gcc > i386 randconfig-a013 clang > i386 randconfig-a014 gcc > i386 randconfig-a015 clang > i386 randconfig-a016 gcc > ia64 allmodconfig gcc > ia64 buildonly-randconfig-r004-20230427 gcc > ia64 defconfig gcc > loongarch allmodconfig gcc > loongarch allnoconfig gcc > loongarch defconfig gcc > loongarch randconfig-r013-20230427 gcc > loongarch randconfig-r016-20230427 gcc > loongarch randconfig-r025-20230427 gcc > m68k allmodconfig gcc > m68k defconfig gcc > microblaze buildonly-randconfig-r005-20230427 gcc > microblaze randconfig-r001-20230427 gcc > microblaze randconfig-r012-20230427 gcc > mips allmodconfig gcc > mips allyesconfig gcc > nios2 defconfig gcc > nios2 randconfig-r034-20230427 gcc > nios2 randconfig-r036-20230427 gcc > parisc defconfig gcc > parisc randconfig-r024-20230427 gcc > parisc64 defconfig gcc > powerpc allmodconfig gcc > powerpc allnoconfig gcc > powerpc mpc834x_itx_defconfig gcc > powerpc mpc836x_rdk_defconfig clang > powerpc randconfig-r026-20230427 clang > powerpc redwood_defconfig gcc > riscv allmodconfig gcc > riscv allnoconfig gcc > riscv defconfig gcc > riscv randconfig-r021-20230427 clang > riscv randconfig-r022-20230427 clang > riscv randconfig-r042-20230427 clang > riscv rv32_defconfig gcc > s390 allmodconfig gcc > s390 allyesconfig gcc > s390 defconfig gcc > s390 randconfig-r006-20230427 gcc > s390 randconfig-r044-20230427 clang > sh allmodconfig gcc > sh landisk_defconfig gcc > sh secureedge5410_defconfig gcc > sparc buildonly-randconfig-r002-20230427 gcc > sparc defconfig gcc > sparc randconfig-r005-20230427 gcc > um defconfig gcc > um i386_defconfig gcc > um x86_64_defconfig gcc > x86_64 allnoconfig gcc > x86_64 allyesconfig gcc > x86_64 defconfig gcc > x86_64 kexec gcc > x86_64 randconfig-a001 clang > x86_64 randconfig-a002 gcc > x86_64 randconfig-a003 clang > x86_64 randconfig-a004 gcc > x86_64 randconfig-a005 clang > x86_64 randconfig-a006 gcc > x86_64 randconfig-a011 gcc > x86_64 randconfig-a012 clang > x86_64 randconfig-a013 gcc > x86_64 randconfig-a014 clang > x86_64 randconfig-a015 gcc > x86_64 randconfig-a016 clang > x86_64 rhel-8.3 gcc > xtensa randconfig-r033-20230427 gcc > > -- > 0-DAY CI Kernel Test Service > https://github.com/intel/lkp-tests
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