root@am62xx-evm:~# stress-ng -c4 --cpu-method=all stress-ng: info: [3664] defaulting to a 86400 second (1 day, 0.00 secs) run per stressor stress-ng: info: [3664] dispatching hogs: 4 cpu [ 9983.915283] rcu: INFO: rcu_preempt self-detected stall on CPU [ 9983.921064] rcu: 0-....: (5369 ticks this GP) idle=aa6c/1/0x4000000000000000 softirq=137487/137490 fqs=2518 [ 9983.930877] (t=5253 jiffies g=240069 q=615 ncpus=4) [ 9983.935836] CPU: 0 PID: 3667 Comm: stress-ng Tainted: G O 6.1.46-dirty #1 [ 9983.943998] Hardware name: Texas Instruments AM625 SK (DT) [ 9983.949471] pstate: 20000005 (nzCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 9983.956417] pc : _raw_spin_unlock_irqrestore+0xc/0x50 [ 9983.961474] lr : vblank_disable_fn+0x84/0xa0 [drm] [ 9983.966537] sp : ffff800008003e30 [ 9983.969840] x29: ffff800008003e30 x28: 0000000000000020 x27: 0000000000000000 [ 9983.976971] x26: ffff800000ce2900 x25: ffff8000092279c0 x24: ffff000018bb61a8 [ 9983.984095] x23: 0000000000000000 x22: ffff000001e70480 x21: ffff000004154000 [ 9983.991218] x20: ffff000004154144 x19: 0000000000000000 x18: ffff800000dd8000 [ 9983.998342] x17: ffff80000faf8000 x16: ffff800008000000 x15: 000000000000003c [ 9984.005464] x14: ffffffffffffffff x13: 0000000000000001 x12: 000000000000003c [ 9984.012587] x11: 0000000000000901 x10: 0000000000000002 x9 : 0000000000000031 [ 9984.019711] x8 : 000000000000002b x7 : ffff800000dd85c0 x6 : 000001d02ab512f2 [ 9984.026834] x5 : 03ffffffffffffff x4 : ffff0000002611c0 x3 : 0000000000000000 [ 9984.033956] x2 : 0000000000000000 x1 : 0000000000000000 x0 : ffff000004154144 [ 9984.041080] Call trace: [ 9984.043517] _raw_spin_unlock_irqrestore+0xc/0x50 [ 9984.048220] call_timer_fn.constprop.0+0x24/0x80 [ 9984.052831] __run_timers.part.0+0x1f4/0x234 [ 9984.057089] run_timer_softirq+0x3c/0x7c [ 9984.061004] _stext+0x124/0x2a4 [ 9984.064143] ____do_softirq+0x10/0x20 [ 9984.067800] call_on_irq_stack+0x24/0x4c [ 9984.071719] do_softirq_own_stack+0x1c/0x30 [ 9984.075895] __irq_exit_rcu+0xcc/0xf4 [ 9984.079556] irq_exit_rcu+0x10/0x20 [ 9984.083036] el0_interrupt+0x50/0xdc [ 9984.086606] __el0_irq_handler_common+0x18/0x24 [ 9984.091134] el0t_64_irq_handler+0x10/0x20 [ 9984.095233] el0t_64_irq+0x18c/0x190 ^Cstress-ng: info: [3664] successful run completed in 45105.35s (12 hours, 31 mins, 45.35 secs)