================================================================== BUG: KCSAN: data-race in tick_nohz_stop_tick / tick_nohz_stop_tick write to 0xffffffff86fc1990 of 4 bytes by task 0 on cpu 1: tick_nohz_stop_tick+0x99/0x410 kernel/time/tick-sched.c:789 __tick_nohz_idle_stop_tick kernel/time/tick-sched.c:981 [inline] tick_nohz_idle_stop_tick+0x148/0x2e0 kernel/time/tick-sched.c:1002 cpuidle_idle_call kernel/sched/idle.c:209 [inline] do_idle+0x176/0x230 kernel/sched/idle.c:273 cpu_startup_entry+0x15/0x20 kernel/sched/idle.c:369 secondary_startup_64_no_verify+0xb0/0xbb read to 0xffffffff86fc1990 of 4 bytes by task 0 on cpu 0: tick_nohz_stop_tick+0x73/0x410 kernel/time/tick-sched.c:788 __tick_nohz_idle_stop_tick kernel/time/tick-sched.c:981 [inline] tick_nohz_idle_stop_tick+0x148/0x2e0 kernel/time/tick-sched.c:1002 cpuidle_idle_call kernel/sched/idle.c:209 [inline] do_idle+0x176/0x230 kernel/sched/idle.c:273 cpu_startup_entry+0x15/0x20 kernel/sched/idle.c:369 rest_init+0xd7/0xe0 init/main.c:721 arch_call_rest_init+0xa/0xb start_kernel+0x5a0/0x625 init/main.c:1061 secondary_startup_64_no_verify+0xb0/0xbb Reported by Kernel Concurrency Sanitizer on: CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.10.0-rc4-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ==================================================================