rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 1-.... } 2676 jiffies s: 98305 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-12074-gb0b0ab6f0131 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/03/2023
RIP: 0010:pie_calculate_probability+0x397/0x850 net/sched/sch_pie.c:395
Code: 36 f9 48 c7 43 20 00 00 00 00 e8 54 c5 36 f9 4c 8b 24 24 31 ff 4d 09 ec 4c 89 e6 e8 d3 c0 36 f9 4d 85 e4 75 31 e8 39 c5 36 f9 <44> 0f b6 7c 24 2f 31 ff 44 89 fe e8 59 c0 36 f9 45 84 ff 74 17 e8
RSP: 0018:ffffc900001e0c58 EFLAGS: 00000246
RAX: 0000000000000000 RBX: ffffc9001707c580 RCX: 0000000000000100
RDX: ffff888016259dc0 RSI: ffffffff884eed77 RDI: 0000000000000007
RBP: ffff888042993300 R08: 0000000000000007 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: fffffff0a3da8872 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fad15975198 CR3: 000000000c776000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 fq_pie_timer+0x1da/0x4f0 net/sched/sch_fq_pie.c:387
 call_timer_fn+0x1a0/0x580 kernel/time/timer.c:1700
 expire_timers kernel/time/timer.c:1751 [inline]
 __run_timers.part.0+0x6a6/0xa30 kernel/time/timer.c:2022
 __run_timers kernel/time/timer.c:2000 [inline]
 run_timer_softirq+0xba/0x1d0 kernel/time/timer.c:2035
 __do_softirq+0x1d8/0x8fd 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+0x93/0xc0 arch/x86/kernel/apic/apic.c:1109
 </IRQ>
 <TASK>
 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+0x11/0x20 drivers/idle/intel_idle.c:224
Code: 48 89 de 48 c7 c7 60 e8 3f 8d e8 da a2 24 fa e9 51 ff ff ff 0f 1f 44 00 00 f3 0f 1e fa 89 d0 66 90 0f 00 2d 21 a9 a8 00 fb f4 <fa> c3 66 66 2e 0f 1f 84 00 00 00 00 00 66 90 f3 0f 1e fa 89 d0 fb
RSP: 0018:ffffc90000177d90 EFLAGS: 00000242
RAX: 0000000000000001 RBX: ffffe8ffffd09a50 RCX: ffffffff8a25e17e
RDX: 0000000000000001 RSI: ffffffff8d3fe9e0 RDI: ffffe8ffffd09a50
RBP: ffffffff8d3fe9e0 R08: 0000000000000001 R09: ffffed1017326d9d
R10: ffff8880b9936ceb R11: 0000000000000000 R12: 0000000000000001
R13: ffffffff8d3fea60 R14: 0000000000000001 R15: 0000000000000000
 cpuidle_enter_state+0x82/0x500 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+0x315/0x3f0 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
 </TASK>