================================================================== BUG: KCSAN: data-race in tick_sched_do_timer / tick_sched_do_timer read to 0xffffffff85cb2790 of 4 bytes by interrupt on cpu 1: tick_sched_do_timer+0x33/0xe0 kernel/time/tick-sched.c:128 tick_sched_timer+0x43/0xe0 kernel/time/tick-sched.c:1292 __run_hrtimer kernel/time/hrtimer.c:1514 [inline] __hrtimer_run_queues+0x288/0x600 kernel/time/hrtimer.c:1576 hrtimer_interrupt+0x22a/0x480 kernel/time/hrtimer.c:1638 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1110 [inline] smp_apic_timer_interrupt+0xdc/0x280 arch/x86/kernel/apic/apic.c:1135 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:830 arch_local_irq_restore arch/x86/include/asm/paravirt.h:756 [inline] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:160 [inline] _raw_spin_unlock_irqrestore+0x51/0x80 kernel/locking/spinlock.c:191 spin_unlock_irqrestore include/linux/spinlock.h:393 [inline] pagevec_lru_move_fn+0x13e/0x180 mm/swap.c:214 __pagevec_lru_add mm/swap.c:966 [inline] __lru_cache_add+0x120/0x1d0 mm/swap.c:406 lru_cache_add mm/swap.c:442 [inline] lru_cache_add_active_or_unevictable+0xb6/0x1f0 mm/swap.c:472 do_anonymous_page mm/memory.c:3041 [inline] handle_pte_fault mm/memory.c:3847 [inline] __handle_mm_fault+0x1a40/0x2cb0 mm/memory.c:3973 handle_mm_fault+0x21b/0x530 mm/memory.c:4010 do_user_addr_fault arch/x86/mm/fault.c:1441 [inline] __do_page_fault+0x3fb/0x9e0 arch/x86/mm/fault.c:1506 do_page_fault+0x54/0x233 arch/x86/mm/fault.c:1530 write to 0xffffffff85cb2790 of 4 bytes by interrupt on cpu 0: tick_sched_do_timer+0xc0/0xe0 kernel/time/tick-sched.c:132 tick_sched_timer+0x43/0xe0 kernel/time/tick-sched.c:1292 __run_hrtimer kernel/time/hrtimer.c:1514 [inline] __hrtimer_run_queues+0x288/0x600 kernel/time/hrtimer.c:1576 hrtimer_interrupt+0x22a/0x480 kernel/time/hrtimer.c:1638 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1110 [inline] smp_apic_timer_interrupt+0xdc/0x280 arch/x86/kernel/apic/apic.c:1135 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:830 Reported by Kernel Concurrency Sanitizer on: CPU: 0 PID: 7031 Comm: syz-fuzzer Not tainted 5.4.0-rc3+ #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ==================================================================