================================================================== BUG: KCSAN: data-race in tick_nohz_idle_stop_tick / tick_sched_do_timer write to 0xffffffff85cb3ad0 of 4 bytes by interrupt on cpu 1: tick_sched_do_timer+0xc0/0xe0 kernel/time/tick-sched.c:132 tick_sched_timer+0x43/0xe0 kernel/time/tick-sched.c:1292 __run_hrtimer kernel/time/hrtimer.c:1514 [inline] __hrtimer_run_queues+0x274/0x5f0 kernel/time/hrtimer.c:1576 hrtimer_interrupt+0x22a/0x480 kernel/time/hrtimer.c:1638 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1110 [inline] smp_apic_timer_interrupt+0xdc/0x280 arch/x86/kernel/apic/apic.c:1135 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:830 read to 0xffffffff85cb3ad0 of 4 bytes by task 0 on cpu 0: tick_nohz_stop_tick kernel/time/tick-sched.c:759 [inline] __tick_nohz_idle_stop_tick kernel/time/tick-sched.c:952 [inline] tick_nohz_idle_stop_tick+0x193/0x670 kernel/time/tick-sched.c:973 cpuidle_idle_call kernel/sched/idle.c:151 [inline] do_idle+0x1a5/0x280 kernel/sched/idle.c:263 cpu_startup_entry+0x1b/0x20 kernel/sched/idle.c:355 rest_init+0xec/0xf6 init/main.c:452 arch_call_rest_init+0x17/0x37 start_kernel+0x838/0x85e init/main.c:786 x86_64_start_reservations+0x29/0x2b arch/x86/kernel/head64.c:490 x86_64_start_kernel+0x72/0x76 arch/x86/kernel/head64.c:471 secondary_startup_64+0xa4/0xb0 arch/x86/kernel/head_64.S:241 Reported by Kernel Concurrency Sanitizer on: CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.4.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ==================================================================