==================================================================
BUG: KCSAN: data-race in tick_nohz_stop_tick / tick_sched_timer

write to 0xffffffff85ed1ee0 of 4 bytes by task 0 on cpu 0:
 tick_nohz_stop_tick+0xa5/0x410 kernel/time/tick-sched.c:888
 __tick_nohz_idle_stop_tick kernel/time/tick-sched.c:1107 [inline]
 tick_nohz_idle_stop_tick+0x174/0x2c0 kernel/time/tick-sched.c:1128
 cpuidle_idle_call kernel/sched/idle.c:232 [inline]
 do_idle+0x195/0x250 kernel/sched/idle.c:303
 cpu_startup_entry+0x15/0x20 kernel/sched/idle.c:400
 rest_init+0xe8/0xf0 init/main.c:726
 start_kernel+0x0/0x669 init/main.c:882
 start_kernel+0x5e4/0x669 init/main.c:1140
 secondary_startup_64_no_verify+0xc4/0xcb

read to 0xffffffff85ed1ee0 of 4 bytes by interrupt on cpu 1:
 tick_sched_do_timer kernel/time/tick-sched.c:189 [inline]
 tick_sched_timer+0x42/0x2d0 kernel/time/tick-sched.c:1466
 __run_hrtimer+0x132/0x420 kernel/time/hrtimer.c:1685
 __hrtimer_run_queues kernel/time/hrtimer.c:1749 [inline]
 hrtimer_interrupt+0x36e/0xa70 kernel/time/hrtimer.c:1811
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1086 [inline]
 __sysvec_apic_timer_interrupt+0xa3/0x250 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
 finish_task_switch+0xfa/0x240 kernel/sched/core.c:4953
 context_switch kernel/sched/core.c:5076 [inline]
 __schedule+0x514/0x6c0 kernel/sched/core.c:6388
 schedule_idle+0x17/0x30 kernel/sched/core.c:6488
 do_idle+0x22c/0x250 kernel/sched/idle.c:331
 cpu_startup_entry+0x15/0x20 kernel/sched/idle.c:400
 start_secondary+0x78/0x80 arch/x86/kernel/smpboot.c:266
 secondary_startup_64_no_verify+0xc4/0xcb

value changed: 0x00000000 -> 0xffffffff

Reported by Kernel Concurrency Sanitizer on:
CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.18.0-rc6-syzkaller-00009-gfeb9c5e19e91 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
==================================================================