================================================================== BUG: KCSAN: data-race in tick_nohz_next_event / tick_sched_timer write to 0xffffffff85f014f0 of 4 bytes by interrupt on cpu 0: tick_sched_do_timer kernel/time/tick-sched.c:193 [inline] tick_sched_timer+0x29c/0x2b0 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+0x20d/0x7b0 kernel/time/hrtimer.c:1811 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1096 [inline] __sysvec_apic_timer_interrupt+0x73/0x210 arch/x86/kernel/apic/apic.c:1113 sysvec_apic_timer_interrupt+0x31/0x80 arch/x86/kernel/apic/apic.c:1107 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:645 read to 0xffffffff85f014f0 of 4 bytes by task 0 on cpu 1: tick_nohz_next_event+0x1d3/0x2a0 kernel/time/tick-sched.c:852 tick_nohz_get_sleep_length+0x137/0x220 kernel/time/tick-sched.c:1238 menu_select+0x308/0xf30 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+0x160/0x240 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-rc6-syzkaller-00035-g0bcc40255504 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/30/2023 ==================================================================