================================================================== BUG: KCSAN: data-race in tick_nohz_next_event / tick_sched_timer write to 0xffffffff85f00fb0 of 4 bytes by interrupt on cpu 0: tick_sched_do_timer kernel/time/tick-sched.c:193 [inline] tick_sched_timer+0x2a8/0x2c0 kernel/time/tick-sched.c:1473 __run_hrtimer kernel/time/hrtimer.c:1685 [inline] __hrtimer_run_queues+0x217/0x700 kernel/time/hrtimer.c:1749 hrtimer_interrupt+0x224/0x7c0 kernel/time/hrtimer.c:1811 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1096 [inline] __sysvec_apic_timer_interrupt+0xa7/0x250 arch/x86/kernel/apic/apic.c:1113 sysvec_apic_timer_interrupt+0x8c/0xb0 arch/x86/kernel/apic/apic.c:1107 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:645 native_safe_halt arch/x86/include/asm/irqflags.h:48 [inline] arch_safe_halt arch/x86/include/asm/irqflags.h:86 [inline] acpi_safe_halt+0x20/0x30 drivers/acpi/processor_idle.c:112 acpi_idle_do_entry+0x19/0x30 drivers/acpi/processor_idle.c:573 acpi_idle_enter+0xbe/0xe0 drivers/acpi/processor_idle.c:711 cpuidle_enter_state+0xc6/0x260 drivers/cpuidle/cpuidle.c:267 cpuidle_enter+0x40/0x60 drivers/cpuidle/cpuidle.c:388 call_cpuidle kernel/sched/idle.c:134 [inline] cpuidle_idle_call kernel/sched/idle.c:215 [inline] do_idle+0x1a3/0x250 kernel/sched/idle.c:282 cpu_startup_entry+0x18/0x20 kernel/sched/idle.c:379 rest_init+0xef/0xf0 init/main.c:732 arch_call_rest_init+0x9/0x10 init/main.c:894 start_kernel+0x58a/0x610 init/main.c:1148 secondary_startup_64_no_verify+0xcf/0xdb read to 0xffffffff85f00fb0 of 4 bytes by task 0 on cpu 1: tick_nohz_next_event+0x1df/0x2a0 kernel/time/tick-sched.c:852 tick_nohz_get_sleep_length+0x16e/0x260 kernel/time/tick-sched.c:1238 menu_select+0x33e/0xf60 drivers/cpuidle/governors/menu.c:283 cpuidle_select+0x41/0x50 drivers/cpuidle/cpuidle.c:359 cpuidle_idle_call kernel/sched/idle.c:208 [inline] do_idle+0x16f/0x250 kernel/sched/idle.c:282 cpu_startup_entry+0x18/0x20 kernel/sched/idle.c:379 start_secondary+0x7c/0x80 arch/x86/kernel/smpboot.c:264 secondary_startup_64_no_verify+0xcf/0xdb value changed: 0xffffffff -> 0x00000000 Reported by Kernel Concurrency Sanitizer on: CPU: 1 PID: 0 Comm: swapper/1 Not tainted 6.3.0-rc1-syzkaller-00002-g8ca09d5fa354-dirty #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023 ==================================================================