rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 1-.... } 2688 jiffies s: 4249 root: 0x2/. rcu: blocking rcu_node structures (internal RCU debug): Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 0 Comm: swapper/1 Not tainted 6.4.0-syzkaller-11991-gb8e39b38487e #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/03/2023 RIP: 0010:fq_pie_timer+0x1ec/0x4f0 net/sched/sch_fq_pie.c:386 Code: 03 38 d0 7c 08 84 d2 0f 85 b8 02 00 00 8b 56 44 4c 89 ff 83 c3 01 e8 53 a9 ff ff 48 8b 44 24 08 42 0f b6 04 20 41 38 c5 7c 08 <84> c0 0f 85 b6 02 00 00 44 8b 75 d4 89 de 44 89 f7 e8 ae f4 38 f9 RSP: 0018:ffffc900001e0ce0 EFLAGS: 00000202 RAX: 0000000000000000 RBX: 000000000000c117 RCX: 0000000000000100 RDX: ffff888017259dc0 RSI: ffffffff884be63d RDI: 0000000000000001 RBP: ffff88802824eb50 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: dffffc0000000000 R13: 0000000000000007 R14: 000000000000f99d R15: ffff88802824eb00 FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fe6ca778038 CR3: 000000000c775000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: call_timer_fn+0x1a0/0x580 kernel/time/timer.c:1700 expire_timers+0x29b/0x4b0 kernel/time/timer.c:1751 __run_timers kernel/time/timer.c:2022 [inline] __run_timers kernel/time/timer.c:1995 [inline] run_timer_softirq+0x326/0x910 kernel/time/timer.c:2035 __do_softirq+0x1d4/0x905 kernel/softirq.c:553 invoke_softirq kernel/softirq.c:427 [inline] __irq_exit_rcu kernel/softirq.c:632 [inline] irq_exit_rcu+0xb7/0x120 kernel/softirq.c:644 sysvec_apic_timer_interrupt+0x97/0xc0 arch/x86/kernel/apic/apic.c:1109 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:645 RIP: 0010:native_irq_disable arch/x86/include/asm/irqflags.h:37 [inline] RIP: 0010:arch_local_irq_disable arch/x86/include/asm/irqflags.h:72 [inline] RIP: 0010:__intel_idle_hlt drivers/idle/intel_idle.c:206 [inline] RIP: 0010:intel_idle_hlt+0x23/0x30 drivers/idle/intel_idle.c:224 Code: 1f 84 00 00 00 00 00 f3 0f 1e fa 41 54 41 89 d4 0f 1f 44 00 00 66 90 0f 1f 44 00 00 0f 00 2d d4 03 ae 00 0f 1f 44 00 00 fb f4 44 89 e0 41 5c c3 66 0f 1f 44 00 00 f3 0f 1e fa 41 54 41 89 d4 RSP: 0018:ffffc90000177d78 EFLAGS: 00000246 RAX: 000000000027e3bd RBX: ffffe8ffffd09a50 RCX: ffffffff8a201115 RDX: 0000000000000001 RSI: ffffffff8d3f50e0 RDI: ffffe8ffffd09a50 RBP: ffffffff8d3f50e0 R08: 0000000000000001 R09: ffffed1017326d9d R10: ffff8880b9936ceb R11: 0000000000000001 R12: 0000000000000001 R13: ffffffff8d3f5160 R14: 0000000000000001 R15: 0000000000000000 cpuidle_enter_state+0xd3/0x6f0 drivers/cpuidle/cpuidle.c:267 cpuidle_enter+0x4e/0xa0 drivers/cpuidle/cpuidle.c:388 cpuidle_idle_call kernel/sched/idle.c:215 [inline] do_idle+0x2fe/0x3c0 kernel/sched/idle.c:282 cpu_startup_entry+0x18/0x20 kernel/sched/idle.c:379 start_secondary+0x200/0x290 arch/x86/kernel/smpboot.c:326 secondary_startup_64_no_verify+0x167/0x16b