Hi, On Thu, Jun 22, 2023 at 6:27 PM kernel test robot <lkp@xxxxxxxxx> wrote: > > tree: https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-nonmm-unstable > head: 2f300c1db6849096050b341817208f97d55586b9 > commit: 7cf0441a9e57e752c39bb70ceb2e74bbf66ec958 [69/70] powerpc: move arch_trigger_cpumask_backtrace from nmi.h to irq.h > config: powerpc-allmodconfig (https://download.01.org/0day-ci/archive/20230623/202306230940.cAAzoBuj-lkp@xxxxxxxxx/config) > compiler: powerpc-linux-gcc (GCC) 12.3.0 > reproduce: (https://download.01.org/0day-ci/archive/20230623/202306230940.cAAzoBuj-lkp@xxxxxxxxx/reproduce) > > If you fix the issue in a separate patch/commit (i.e. not just a new version of > the same patch/commit), kindly add following tags > | Reported-by: kernel test robot <lkp@xxxxxxxxx> > | Closes: https://lore.kernel.org/oe-kbuild-all/202306230940.cAAzoBuj-lkp@xxxxxxxxx/ > > All errors (new ones prefixed by >>): > > powerpc-linux-ld: kernel/panic.o: in function `panic': > >> panic.c:(.text+0xa9c): undefined reference to `arch_trigger_cpumask_backtrace' > >> powerpc-linux-ld: panic.c:(.text+0xae0): undefined reference to `arch_trigger_cpumask_backtrace' > powerpc-linux-ld: kernel/panic.o: in function `oops_enter': > panic.c:(.text+0x1518): undefined reference to `arch_trigger_cpumask_backtrace' > powerpc-linux-ld: kernel/sched/core.o: in function `dump_cpu_task': > >> core.c:(.text+0x1dd70): undefined reference to `arch_trigger_cpumask_backtrace' > powerpc-linux-ld: kernel/hung_task.o: in function `check_hung_uninterruptible_tasks': > >> hung_task.c:(.text+0x11e0): undefined reference to `arch_trigger_cpumask_backtrace' > powerpc-linux-ld: kernel/watchdog.o:watchdog.c:(.text+0x8f0): more undefined references to `arch_trigger_cpumask_backtrace' follow Argh. Since this is in Andrew's unstable, I'll send a v2 of my patch right away. -Doug