================================================================== BUG: KCSAN: data-race in tick_nohz_idle_stop_tick / tick_nohz_idle_stop_tick write to 0xffffffff85f16a40 of 4 bytes by task 0 on cpu 1: tick_nohz_stop_tick kernel/time/tick-sched.c:903 [inline] tick_nohz_idle_stop_tick+0x1d8/0x760 kernel/time/tick-sched.c:1130 cpuidle_idle_call kernel/sched/idle.c:211 [inline] do_idle+0x177/0x230 kernel/sched/idle.c:282 cpu_startup_entry+0x18/0x20 kernel/sched/idle.c:379 start_secondary+0x82/0x90 arch/x86/kernel/smpboot.c:326 secondary_startup_64_no_verify+0x167/0x16b read to 0xffffffff85f16a40 of 4 bytes by task 0 on cpu 0: tick_nohz_stop_tick kernel/time/tick-sched.c:902 [inline] tick_nohz_idle_stop_tick+0x1b0/0x760 kernel/time/tick-sched.c:1130 cpuidle_idle_call kernel/sched/idle.c:211 [inline] do_idle+0x177/0x230 kernel/sched/idle.c:282 cpu_startup_entry+0x18/0x20 kernel/sched/idle.c:379 rest_init+0xf3/0x100 init/main.c:726 arch_call_rest_init+0x9/0x10 init/main.c:823 start_kernel+0x57d/0x5d0 init/main.c:1068 x86_64_start_reservations+0x2a/0x30 arch/x86/kernel/head64.c:556 x86_64_start_kernel+0x94/0xa0 arch/x86/kernel/head64.c:537 secondary_startup_64_no_verify+0x167/0x16b value changed: 0x00000001 -> 0xffffffff Reported by Kernel Concurrency Sanitizer on: CPU: 0 PID: 0 Comm: swapper/0 Not tainted 6.5.0-syzkaller-11938-g65d6e954e378 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023 ==================================================================