================================================================== BUG: KCSAN: data-race in tick_sched_timer / tick_sched_timer read to 0xffffffff85f16b00 of 4 bytes by interrupt on cpu 0: tick_sched_do_timer kernel/time/tick-sched.c:200 [inline] tick_sched_timer+0x3d/0x2c0 kernel/time/tick-sched.c:1485 __run_hrtimer kernel/time/hrtimer.c:1688 [inline] __hrtimer_run_queues+0x217/0x700 kernel/time/hrtimer.c:1752 hrtimer_interrupt+0x20d/0x7b0 kernel/time/hrtimer.c:1814 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1063 [inline] __sysvec_apic_timer_interrupt+0x52/0x190 arch/x86/kernel/apic/apic.c:1080 sysvec_apic_timer_interrupt+0x31/0x80 arch/x86/kernel/apic/apic.c:1074 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:645 write to 0xffffffff85f16b00 of 4 bytes by interrupt on cpu 1: tick_sched_do_timer kernel/time/tick-sched.c:204 [inline] tick_sched_timer+0x2ad/0x2c0 kernel/time/tick-sched.c:1485 __run_hrtimer kernel/time/hrtimer.c:1688 [inline] __hrtimer_run_queues+0x217/0x700 kernel/time/hrtimer.c:1752 hrtimer_interrupt+0x20d/0x7b0 kernel/time/hrtimer.c:1814 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1063 [inline] __sysvec_apic_timer_interrupt+0x52/0x190 arch/x86/kernel/apic/apic.c:1080 sysvec_apic_timer_interrupt+0x68/0x80 arch/x86/kernel/apic/apic.c:1074 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:645 native_safe_halt arch/x86/include/asm/irqflags.h:48 [inline] arch_safe_halt arch/x86/include/asm/irqflags.h:86 [inline] acpi_safe_halt+0x20/0x30 drivers/acpi/processor_idle.c:112 acpi_idle_do_entry+0x19/0x30 drivers/acpi/processor_idle.c:573 acpi_idle_enter+0x96/0xb0 drivers/acpi/processor_idle.c:707 cpuidle_enter_state+0xc6/0x260 drivers/cpuidle/cpuidle.c:267 cpuidle_enter+0x40/0x60 drivers/cpuidle/cpuidle.c:388 call_cpuidle kernel/sched/idle.c:134 [inline] cpuidle_idle_call kernel/sched/idle.c:215 [inline] do_idle+0x194/0x230 kernel/sched/idle.c:282 cpu_startup_entry+0x24/0x30 kernel/sched/idle.c:380 start_secondary+0x82/0x90 arch/x86/kernel/smpboot.c:326 secondary_startup_64_no_verify+0x167/0x16b value changed: 0xffffffff -> 0x00000000 Reported by Kernel Concurrency Sanitizer on: CPU: 1 PID: 0 Comm: swapper/1 Not tainted 6.6.0-rc7-syzkaller-00137-g750b95887e56 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 ==================================================================