syzbot

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BUG: KCSAN: data-race in tick_nohz_highres_handler / tick_nohz_next_event

write to 0xffffffff8611eef0 of 4 bytes by interrupt on cpu 0:
 tick_sched_do_timer kernel/time/tick-sched.c:205 [inline]
 tick_nohz_highres_handler+0x2ad/0x2c0 kernel/time/tick-sched.c:1512
 __run_hrtimer kernel/time/hrtimer.c:1689 [inline]
 __hrtimer_run_queues+0x210/0x5d0 kernel/time/hrtimer.c:1753
 hrtimer_interrupt+0x20d/0x7b0 kernel/time/hrtimer.c:1815
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1065 [inline]
 __sysvec_apic_timer_interrupt+0x52/0x190 arch/x86/kernel/apic/apic.c:1082
 sysvec_apic_timer_interrupt+0x32/0x80 arch/x86/kernel/apic/apic.c:1076
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:649

read to 0xffffffff8611eef0 of 4 bytes by task 0 on cpu 1:
 tick_nohz_next_event+0x1f1/0x2d0 kernel/time/tick-sched.c:873
 tick_nohz_get_sleep_length+0x134/0x2c0 kernel/time/tick-sched.c:1264
 menu_select+0x81a/0x1060 drivers/cpuidle/governors/menu.c:286
 cpuidle_select+0x41/0x50 drivers/cpuidle/cpuidle.c:359
 cpuidle_idle_call kernel/sched/idle.c:208 [inline]
 do_idle+0x160/0x230 kernel/sched/idle.c:312
 cpu_startup_entry+0x24/0x30 kernel/sched/idle.c:410
 start_secondary+0x82/0x90 arch/x86/kernel/smpboot.c:336
 secondary_startup_64_no_verify+0x15f/0x16b

value changed: 0xffffffff -> 0x00000000

Reported by Kernel Concurrency Sanitizer on:
CPU: 1 PID: 0 Comm: swapper/1 Not tainted 6.8.0-rc7-syzkaller-00260-gfa4b851b4ad6 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024
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