Re: [paulmck-rcu:slownmi.2023.01.19a] BUILD REGRESSION 06901681acde9854a9a9a337cebbf3ab537f4543

From: Paul E. McKenney
Date: Fri Jan 20 2023 - 10:49:45 EST


On Fri, Jan 20, 2023 at 10:20:21PM +0800, kernel test robot wrote:
> tree/branch: https://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git slownmi.2023.01.19a
> branch HEAD: 06901681acde9854a9a9a337cebbf3ab537f4543 x86/nmi: Test commit for delayed NMI handlers
>
> Error/Warning reports:
>
> https://lore.kernel.org/oe-kbuild-all/202301201335.5rpVzsvW-lkp@xxxxxxxxx
>
> Error/Warning: (recently discovered and may have been fixed)
>
> ERROR: modpost: "dump_cpu_task" [kernel/rcu/rcutorture.ko] undefined!

Good catch as always, but this is a testing-only commit not destined
for mainline. Except that now that you mention it, the next stage of
testing requires modules.

Will fix, and thank you!

Thanx, Paul

> Error/Warning ids grouped by kconfigs:
>
> gcc_recent_errors
> |-- i386-randconfig-a001
> | `-- ERROR:dump_cpu_task-kernel-rcu-rcutorture.ko-undefined
> `-- s390-allmodconfig
> `-- ERROR:dump_cpu_task-kernel-rcu-rcutorture.ko-undefined
>
> elapsed time: 793m
>
> configs tested: 66
> configs skipped: 2
>
> gcc tested configs:
> x86_64 allnoconfig
> um i386_defconfig
> um x86_64_defconfig
> x86_64 defconfig
> x86_64 rhel-8.3
> x86_64 allyesconfig
> x86_64 rhel-8.3-syz
> x86_64 rhel-8.3-kvm
> x86_64 rhel-8.3-bpf
> x86_64 rhel-8.3-kunit
> x86_64 rhel-8.3-kselftests
> x86_64 rhel-8.3-func
> ia64 allmodconfig
> arc defconfig
> i386 randconfig-a001
> s390 allmodconfig
> arm defconfig
> i386 randconfig-a003
> alpha defconfig
> arm64 allyesconfig
> i386 randconfig-a005
> i386 defconfig
> x86_64 randconfig-a004
> arm randconfig-r046-20230119
> x86_64 randconfig-a002
> s390 defconfig
> arc randconfig-r043-20230119
> x86_64 randconfig-a006
> m68k allmodconfig
> arm allyesconfig
> m68k allyesconfig
> alpha allyesconfig
> arc allyesconfig
> s390 allyesconfig
> powerpc allnoconfig
> powerpc allmodconfig
> mips allyesconfig
> sh allmodconfig
> x86_64 randconfig-a013
> x86_64 randconfig-a011
> i386 randconfig-a014
> x86_64 randconfig-a015
> i386 randconfig-a012
> i386 randconfig-a016
> i386 allyesconfig
> powerpc storcenter_defconfig
> sh se7722_defconfig
> riscv defconfig
>
> clang tested configs:
> x86_64 rhel-8.3-rust
> i386 randconfig-a002
> i386 randconfig-a004
> hexagon randconfig-r041-20230119
> i386 randconfig-a006
> x86_64 randconfig-a001
> x86_64 randconfig-a003
> hexagon randconfig-r045-20230119
> x86_64 randconfig-a005
> riscv randconfig-r042-20230119
> s390 randconfig-r044-20230119
> i386 randconfig-a013
> x86_64 randconfig-a012
> x86_64 randconfig-a014
> x86_64 randconfig-a016
> i386 randconfig-a011
> i386 randconfig-a015
> mips pic32mzda_defconfig
>
> --
> 0-DAY CI Kernel Test Service
> https://01.org/lkp