=====================================================
BUG: KMSAN: uninit-value in __flush_smp_call_function_queue+0x343/0x1810 kernel/smp.c:549
 __flush_smp_call_function_queue+0x343/0x1810 kernel/smp.c:549
 generic_smp_call_function_single_interrupt+0x1c/0x30 kernel/smp.c:477
 __sysvec_call_function_single+0x48/0x350 arch/x86/kernel/smp.c:272
 instr_sysvec_call_function_single arch/x86/kernel/smp.c:267 [inline]
 sysvec_call_function_single+0x7c/0x90 arch/x86/kernel/smp.c:267
 asm_sysvec_call_function_single+0x1f/0x30 arch/x86/include/asm/idtentry.h:704
 native_irq_enable arch/x86/include/asm/irqflags.h:42 [inline]
 arch_local_irq_enable arch/x86/include/asm/irqflags.h:119 [inline]
 raw_spin_rq_unlock_irq kernel/sched/sched.h:1644 [inline]
 finish_lock_switch kernel/sched/core.c:5125 [inline]
 finish_task_switch+0x37e/0xbc0 kernel/sched/core.c:5243
 context_switch kernel/sched/core.c:5391 [inline]
 __schedule+0x2930/0x8750 kernel/sched/core.c:7189
 preempt_schedule_common+0x33/0x80 kernel/sched/core.c:7370
 preempt_schedule+0x30/0x40 kernel/sched/core.c:7394
 preempt_schedule_thunk+0x16/0x30 arch/x86/entry/thunk.S:12
 __raw_spin_unlock include/linux/spinlock_api_smp.h:169 [inline]
 _raw_spin_unlock+0x46/0x50 kernel/locking/spinlock.c:190
 spin_unlock include/linux/spinlock.h:390 [inline]
 nsim_dev_trap_report drivers/net/netdevsim/dev.c:894 [inline]
 nsim_dev_trap_report_work+0x113f/0x1420 drivers/net/netdevsim/dev.c:922
 process_one_work kernel/workqueue.c:3314 [inline]
 process_scheduled_works+0xb65/0x1e40 kernel/workqueue.c:3397
 worker_thread+0xee4/0x1590 kernel/workqueue.c:3478
 kthread+0x53a/0x5f0 kernel/kthread.c:436
 ret_from_fork+0x20f/0x8d0 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245

Local variable cycles.i created at:
 clockevent_set_next_coupled kernel/time/clockevents.c:309 [inline]
 clockevents_program_event+0x178/0x830 kernel/time/clockevents.c:360
 tick_program_event+0xfb/0x190 kernel/time/tick-oneshot.c:48

CPU: 1 UID: 0 PID: 5872 Comm: kworker/u8:12 Not tainted syzkaller #0 PREEMPT(lazy) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
Workqueue: events_unbound nsim_dev_trap_report_work
=====================================================