Re: [RFC PATCH v1] mm: improve call_controls_lock

kernel test robot
2026-01-06T06:41:42Z

Hello,

kernel test robot noticed "INFO:trying_to_register_non-static_key" on:

commit: d87e70902c77a5dc3a4fd4fe78c1172b4b644495 ("[RFC PATCH v1] mm: improve call_controls_lock")
url: https://github.com/intel-lab-lkp/linux/commits/Asier-Gutierrez/mm-improve-call_controls_lock/20251229-225805
base: v6.19-rc3
patch link: https://lore.kernel.org/all/20251229145533.2437293-1-gutierrez.asier@huawei-partners.com/
patch subject: [RFC PATCH v1] mm: improve call_controls_lock

in testcase: boot

config: i386-randconfig-005-20260101
compiler: gcc-14
test machine: qemu-system-i386 -enable-kvm -cpu SandyBridge -smp 2 -m 4G

(please refer to attached dmesg/kmsg for entire log/backtrace)

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 <oliver.sang@intel.com>
| Closes: https://lore.kernel.org/oe-lkp/202601061219.9effe621-lkp@intel.com

[ 1.225255][ T1] INFO: trying to register non-static key.
[ 1.226642][ T1] The code is fine but needs lockdep annotation, or maybe
[ 1.227181][ T1] you didn't initialize this object before use?
[ 1.227181][ T1] turning off the locking correctness validator.
[ 1.227181][ T1] CPU: 1 UID: 0 PID: 1 Comm: swapper/0 Tainted: G T 6.19.0-rc3-00001-gd87e70902c77 #1 VOLUNTARY 7c12528289a79a90bef93a94128a85da378fc562
[ 1.227181][ T1] Tainted: [T]=RANDSTRUCT
[ 1.227181][ T1] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[ 1.227181][ T1] Call Trace:
[ 1.227181][ T1] ? dump_stack_lvl (lib/dump_stack.c:122)
[ 1.227181][ T1] ? dump_stack (lib/dump_stack.c:130)
[ 1.227181][ T1] ? register_lock_class (kernel/locking/lockdep.c:985 kernel/locking/lockdep.c:1299)
[ 1.227181][ T1] ? sched_clock_noinstr (arch/x86/kernel/tsc.c:273)
[ 1.227181][ T1] ? damon_start (mm/damon/core.c:1372)
[ 1.227181][ T1] ? kvm_sched_clock_read (arch/x86/kernel/kvmclock.c:91 (discriminator 2))
[ 1.227181][ T1] ? __lock_acquire (kernel/locking/lockdep.c:5113)
[ 1.227181][ T1] ? lock_acquire (kernel/locking/lockdep.c:470 (discriminator 4) kernel/locking/lockdep.c:5870 (discriminator 4))
[ 1.227181][ T1] ? damon_call (mm/damon/core.c:1460)
[ 1.227181][ T1] ? damon_start (mm/damon/core.c:1372)
[ 1.227181][ T1] ? __mutex_unlock_slowpath (arch/x86/include/asm/atomic.h:23 include/linux/atomic/atomic-arch-fallback.h:457 include/linux/atomic/atomic-long.h:40 include/linux/atomic/atomic-instrumented.h:3189 kernel/locking/mutex.c:947)
[ 1.227181][ T1] ? hrtimer_nanosleep_restart (kernel/time/sleep_timeout.c:62)
[ 1.227181][ T1] ? _raw_spin_lock (include/linux/spinlock_api_smp.h:134 kernel/locking/spinlock.c:154)
[ 1.227181][ T1] ? damon_call (mm/damon/core.c:1460)
[ 1.227181][ T1] ? damon_stat_start (mm/damon/stat.c:219)
[ 1.227181][ T1] ? damon_reclaim_init (mm/damon/stat.c:258)
[ 1.227181][ T1] ? damon_stat_init (mm/damon/stat.c:271)
[ 1.227181][ T1] ? do_one_initcall (init/main.c:1378)
[ 1.227181][ T1] ? do_initcalls (init/main.c:1439 (discriminator 3) init/main.c:1456 (discriminator 3))
[ 1.227181][ T1] ? kernel_init_freeable (init/main.c:1692)
[ 1.227181][ T1] ? rest_init (init/main.c:1570)
[ 1.227181][ T1] ? kernel_init (init/main.c:1580)
[ 1.227181][ T1] ? ret_from_fork (arch/x86/kernel/process.c:164)
[ 1.227181][ T1] ? rest_init (init/main.c:1570)
[ 1.227181][ T1] ? ret_from_fork_asm (arch/x86/entry/entry_32.S:737)
[ 1.227181][ T1] ? entry_INT80_32 (arch/x86/entry/entry_32.S:945)

The kernel config and materials to reproduce are available at:
https://download.01.org/0day-ci/archive/20260106/202601061219.9effe621-lkp@intel.com

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