================================================================== BUG: KCSAN: data-race in tick_nohz_next_event / tick_sched_timer write to 0xffffffff860cdde0 of 4 bytes by interrupt on cpu 1: tick_sched_do_timer kernel/time/tick-sched.c:193 [inline] tick_sched_timer+0x2c3/0x2e0 kernel/time/tick-sched.c:1466 __run_hrtimer+0x163/0x460 kernel/time/hrtimer.c:1685 __hrtimer_run_queues kernel/time/hrtimer.c:1749 [inline] hrtimer_interrupt+0x37e/0xac0 kernel/time/hrtimer.c:1811 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1086 [inline] __sysvec_apic_timer_interrupt+0xa3/0x240 arch/x86/kernel/apic/apic.c:1103 sysvec_apic_timer_interrupt+0x88/0xb0 arch/x86/kernel/apic/apic.c:1097 asm_sysvec_apic_timer_interrupt+0x12/0x20 native_safe_halt arch/x86/include/asm/irqflags.h:51 [inline] arch_safe_halt arch/x86/include/asm/irqflags.h:89 [inline] acpi_safe_halt drivers/acpi/processor_idle.c:115 [inline] acpi_idle_do_entry drivers/acpi/processor_idle.c:556 [inline] acpi_idle_enter+0x282/0x300 drivers/acpi/processor_idle.c:692 cpuidle_enter_state+0x2b4/0x7d0 drivers/cpuidle/cpuidle.c:237 cpuidle_enter+0x3c/0x60 drivers/cpuidle/cpuidle.c:351 call_cpuidle kernel/sched/idle.c:155 [inline] cpuidle_idle_call kernel/sched/idle.c:236 [inline] do_idle+0x1b2/0x250 kernel/sched/idle.c:303 cpu_startup_entry+0x15/0x20 kernel/sched/idle.c:400 secondary_startup_64_no_verify+0xc4/0xcb read to 0xffffffff860cdde0 of 4 bytes by task 0 on cpu 0: tick_nohz_next_event+0x1ef/0x2c0 kernel/time/tick-sched.c:853 tick_nohz_get_sleep_length+0xca/0x140 kernel/time/tick-sched.c:1237 menu_select+0x34d/0x10a0 drivers/cpuidle/governors/menu.c:283 cpuidle_select+0x3d/0x50 drivers/cpuidle/cpuidle.c:322 cpuidle_idle_call kernel/sched/idle.c:229 [inline] do_idle+0x17e/0x250 kernel/sched/idle.c:303 cpu_startup_entry+0x15/0x20 kernel/sched/idle.c:400 rest_init+0xfa/0x100 init/main.c:726 arch_call_rest_init+0xa/0xb init/main.c:882 start_kernel+0x5ea/0x66f init/main.c:1140 secondary_startup_64_no_verify+0xc4/0xcb value changed: 0xffffffff -> 0x00000001 Reported by Kernel Concurrency Sanitizer on: CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.17.0-syzkaller-14079-gbe2d3ecedd99-dirty #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ==================================================================