[peterz-queue:locking/urgent 1/1] undefined reference to `futex_mm_init'

[peterz-queue:locking/urgent 1/1] undefined reference to `futex_mm_init'

[kernel test robot]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git locking/urgent
head:   fcbe4307bda074abc8132bfe746eeb0e502d74ab
commit: fcbe4307bda074abc8132bfe746eeb0e502d74ab [1/1] futex: Fix mm reuse handling for FUT_OFF_MMSHARED
config: parisc-randconfig-1000-20261002 (https://download.01.org/0day-ci/archive/20261002/202610020501.bKHR1IPb-lkp@intel.com/config)
compiler: hppa-linux-gcc (GCC) 14.3.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20261002/202610020501.bKHR1IPb-lkp@intel.com/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@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202610020501.bKHR1IPb-lkp@intel.com/

All errors (new ones prefixed by >>):

   hppa-linux-ld: kernel/fork.o: in function `mm_init.isra.0':
>> (.text+0x2964): undefined reference to `futex_mm_init'

--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki

Re: [peterz-queue:locking/urgent 1/1] undefined reference to `futex_mm_init'

[Jann Horn]

On Thu, Oct 1, 2026 at 11:19 PM kernel test robot <lkp@intel.com> wrote:
> tree:   https://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git locking/urgent
> head:   fcbe4307bda074abc8132bfe746eeb0e502d74ab
> commit: fcbe4307bda074abc8132bfe746eeb0e502d74ab [1/1] futex: Fix mm reuse handling for FUT_OFF_MMSHARED
> config: parisc-randconfig-1000-20261002 (https://download.01.org/0day-ci/archive/20261002/202610020501.bKHR1IPb-lkp@intel.com/config)
> compiler: hppa-linux-gcc (GCC) 14.3.0
> reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20261002/202610020501.bKHR1IPb-lkp@intel.com/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@intel.com>
> | Closes: https://lore.kernel.org/oe-kbuild-all/202610020501.bKHR1IPb-lkp@intel.com/
>
> All errors (new ones prefixed by >>):
>
>    hppa-linux-ld: kernel/fork.o: in function `mm_init.isra.0':
> >> (.text+0x2964): undefined reference to `futex_mm_init'

Oops, I broke the !CONFIG_FUTEX build... I've sent a fixup
http://lore.kernel.org/r/20261002120446.2313940-2-jannh@google.com
now.

[peterz-queue:locking/urgent 1/1] undefined reference to `futex_mm_init'

[kernel test robot]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git locking/urgent
head:   fcbe4307bda074abc8132bfe746eeb0e502d74ab
commit: fcbe4307bda074abc8132bfe746eeb0e502d74ab [1/1] futex: Fix mm reuse handling for FUT_OFF_MMSHARED
config: alpha-randconfig-r2101-20261001 (https://download.01.org/0day-ci/archive/20261004/202610041918.F9QU0bxy-lkp@intel.com/config)
compiler: alpha-linux-gcc (GCC) 10.5.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20261004/202610041918.F9QU0bxy-lkp@intel.com/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@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202610041918.F9QU0bxy-lkp@intel.com/

All errors (new ones prefixed by >>):

   alpha-linux-ld: kernel/fork.o: in function `mm_init':
>> (.text+0x1b24): undefined reference to `futex_mm_init'
>> alpha-linux-ld: (.text+0x1b34): undefined reference to `futex_mm_init'

--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki