S905X/5.9.0 : WARNING: CPU: 1 PID: 1550299 at kernel/time/hrtimer.c:932 hrtimer_forward+0x88/0xc0

[Chris4arm]

Hi,

 

I run Armbian 20.10 with kernel 5.9.0-arm-64 on a S905x TV box and ~20 times a day the following lines appear in the logs :

 

525418.166366] WARNING: CPU: 2 PID: 1966008 at kernel/time/hrtimer.c:932 hrtimer_forward+0x88/0xc0
[525418.166372] Modules linked in: nfnetlink bnep 8192eu zram nls_ascii rtl8xxxu mac80211 cfg80211 crct10dif_ce hci_uart btqca meson_vdec(C) btrtl btbcm v4l2_mem2mem btintel videobuf2_dma_contig lima bluetooth videobuf2_memops videobuf2_v4l2 gpu_sched meson_ir videobuf2_common rc_core ecdh_generic videodev dw_hdmi_cec ecc rfkill mc ao_cec display_connector fuse ip_tables x_tables ipv6
[525418.166505] CPU: 2 PID: 1966008 Comm: kworker/u8:3 Tainted: G        WC        5.9.0-arm-64 #20.10
[525418.166512] Hardware name: Amlogic Meson GXL (S905X) P212 Development Board (DT)
[525418.166534] Workqueue: events_freezable_power_ thermal_zone_device_check
[525418.166550] pstate: 20000085 (nzCv daIf -PAN -UAO BTYPE=--)
[525418.166561] pc : hrtimer_forward+0x88/0xc0
[525418.166573] lr : txdone_hrtimer+0xf4/0x110
[525418.166579] sp : ffff800010013e20
[525418.166585] x29: ffff800010013e20 x28: ffff800011e14dd0 
[525418.166596] x27: ffff00003fc22240 x26: 0000000000000006 
[525418.166606] x25: 0000000000000001 x24: 0000000000000001 
[525418.166616] x23: ffff00003f16cbe8 x22: 00000000000000f8 
[525418.166626] x21: ffff00003f16cbb8 x20: ffff00003f16cac0 
[525418.166636] x19: 00000000000f4240 x18: 0000000000001800 
[525418.166646] x17: 0000000000001400 x16: 0000000000001c00 
[525418.166656] x15: 0000000000000000 x14: 0000000000000052 
[525418.166666] x13: 0000000000000000 x12: 0000000000000000 
[525418.166676] x11: 0000000000000040 x10: ffff800012a37ef8 
[525418.166686] x9 : ffff800012a37ef0 x8 : ffff00003f4026f0 
[525418.166696] x7 : 0000000000000000 x6 : 00000b78184130b1 
[525418.166706] x5 : 0001ddd97b207643 x4 : ffff00003f16cbe8 
[525418.166716] x3 : 0000000000000001 x2 : 00000000000f4240 
[525418.166726] x1 : 0001ddd97b2079ae x0 : 000000000000036b 
[525418.166737] Call trace:
[525418.166751]  hrtimer_forward+0x88/0xc0
[525418.166764]  __hrtimer_run_queues+0x114/0x1b8
[525418.166776]  hrtimer_interrupt+0xe8/0x248
[525418.166789]  arch_timer_handler_phys+0x34/0x48
[525418.166802]  handle_percpu_devid_irq+0x84/0x148
[525418.166816]  generic_handle_irq+0x30/0x48
[525418.166824]  __handle_domain_irq+0x64/0xc0
[525418.166836]  gic_handle_irq+0x54/0xa8
[525418.166847]  el1_irq+0xcc/0x180
[525418.166860]  _raw_spin_unlock_irqrestore+0xc/0x68
[525418.166874]  wait_for_completion_timeout+0x84/0x100
[525418.166883]  mbox_send_message+0xa0/0x120
[525418.166894]  scpi_send_message+0x178/0x288
[525418.166904]  scpi_sensor_get_value+0x40/0x90
[525418.166915]  scpi_read_temp+0x58/0xc8
[525418.166924]  of_thermal_get_temp+0x24/0x38
[525418.166936]  thermal_zone_get_temp+0x70/0x158
[525418.166947]  thermal_zone_device_update+0x78/0x128
[525418.166958]  thermal_zone_device_check+0x18/0x28
[525418.166972]  process_one_work+0x1a0/0x328
[525418.166981]  worker_thread+0x4c/0x420
[525418.166993]  kthread+0x140/0x160
[525418.167005]  ret_from_fork+0x10/0x34
[525418.167012] ---[ end trace 3c3a4049aa377f8f ]---

 

Is the origin known ?

Is there a fix ?

 

Thanks