------------[ cut here ]------------
[    1.035695] WARNING: CPU: 4 PID: 53 at kernel/fork.c:969 __put_task_struct+0x144/0x14c
[    1.035719] Modules linked in:
[    1.035727] CPU: 4 UID: 0 PID: 53 Comm: rcuc/4 Tainted: G      D            6.12.0-next-20241121 #1
[    1.035736] Tainted: [D]=DIE
[    1.035739] Hardware name: Radxa ROCK Pi 4B (DT)
[    1.035742] pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)
[    1.035750] pc : __put_task_struct+0x144/0x14c
[    1.035759] lr : __put_task_struct_rcu_cb+0x14/0x20
[    1.035768] sp : ffff8000828e3cf0
[    1.035771] x29: ffff8000828e3cf0 x28: ffff800080130784 x27: ffff8000801307d0
[    1.035781] x26: ffff8000820a6240 x25: 000000000000000a x24: ffff0000f76ab7b8
[    1.035790] x23: 0000000000000000 x22: 0000000000000000 x21: ffff000000c41100
[    1.035798] x20: ffff0000f76ab740 x19: ffff00000152d500 x18: 0000000000000000
[    1.035806] x17: 0000000000000000 x16: 0000000000000000 x15: ffff0000f76ab180
[    1.035814] x14: ffff0000f7691a00 x13: 00000000000000af x12: 00000000000003c1
[    1.035823] x11: 00000000000002c4 x10: 0000000000000a50 x9 : ffff8000828e3d70
[    1.035832] x8 : ffff000000c41bb0 x7 : ffff0000f76aa980 x6 : 0000000000000062
[    1.035840] x5 : ffff0000020d7810 x4 : ffff0000f76ab7c0 x3 : ffff00000152efd8
[    1.035848] x2 : ffff800080097800 x1 : ffff00000152ded8 x0 : 0000000000000000
[    1.035856] Call trace:
[    1.035860]  __put_task_struct+0x144/0x14c (P)
[    1.035871]  __put_task_struct_rcu_cb+0x14/0x20 (L)
[    1.035881]  __put_task_struct_rcu_cb+0x14/0x20
[    1.035890]  rcu_core+0x25c/0x65c
[    1.035898]  rcu_cpu_kthread+0xbc/0x144
[    1.035904]  smpboot_thread_fn+0x204/0x228
[    1.035914]  kthread+0x110/0x114
[    1.035923]  ret_from_fork+0x10/0x20
[    1.035932] ---[ end trace 0000000000000000 ]---