rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 0-.... } 2677 jiffies s: 25689 root: 0x1/.
rcu: blocking rcu_node structures (internal RCU debug):
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 10243 Comm: modprobe Not tainted 6.4.0-rc7-syzkaller-01890-g771ca3de2502 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023
RIP: 0010:div_u64_rem include/linux/math64.h:29 [inline]
RIP: 0010:div_u64 include/linux/math64.h:130 [inline]
RIP: 0010:pie_calculate_probability+0x267/0x7c0 net/sched/sch_pie.c:345
Code: 89 5c 24 40 48 8b 5c 24 20 b8 05 00 00 00 41 bc 64 00 00 00 4c 89 74 24 30 41 89 c6 4c 89 6c 24 38 e8 cd 2e 44 f9 47 8d 24 a4 <31> d2 4c 89 ff 43 8d 0c 24 48 c1 ed 02 48 b8 ff ff ff ff ff ff ff
RSP: 0018:ffffc90000007c50 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 00000000abcc7711 RCX: 0000000000000100
RDX: ffff88802e4fbb80 RSI: ffffffff88401a93 RDI: 0000000000000007
RBP: 00000000112e0be8 R08: 0000000000000007 R09: 00028f5c28f5c28e
R10: 0000000000000000 R11: 00000000d83d385c R12: 00000000000001f4
R13: ffff888041baeb00 R14: 0000000000000005 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f3d8ca6a6a8 CR3: 00000000371fa000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 fq_pie_timer+0x1dd/0x4f0 net/sched/sch_fq_pie.c:387
 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:571
 invoke_softirq kernel/softirq.c:445 [inline]
 __irq_exit_rcu+0x114/0x190 kernel/softirq.c:650
 irq_exit_rcu+0x9/0x20 kernel/softirq.c:662
 sysvec_apic_timer_interrupt+0x97/0xc0 arch/x86/kernel/apic/apic.c:1106
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:645
RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline]
RIP: 0010:_raw_spin_unlock_irqrestore+0x3c/0x70 kernel/locking/spinlock.c:194
Code: 74 24 10 e8 96 3d 4f f7 48 89 ef e8 be ab 4f f7 81 e3 00 02 00 00 75 25 9c 58 f6 c4 02 75 2d 48 85 db 74 01 fb bf 01 00 00 00 <e8> 2f 81 41 f7 65 8b 05 90 0f ed 75 85 c0 74 0a 5b 5d c3 e8 cc 3a
RSP: 0018:ffffc90003317730 EFLAGS: 00000206
RAX: 0000000000000002 RBX: 0000000000000200 RCX: 1ffffffff22aa1ee
RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000001
RBP: ffff888015a70050 R08: 0000000000000001 R09: ffffffff91536d47
R10: 0000000000000001 R11: 0000000000094001 R12: 0000000000000001
R13: ffff8880b9836db0 R14: dffffc0000000000 R15: ffffffff8c139a00
 spin_unlock_irqrestore include/linux/spinlock.h:405 [inline]
 unlock_page_lruvec_irqrestore include/linux/memcontrol.h:1645 [inline]
 folio_batch_move_lru+0x283/0x400 mm/swap.c:223
 lru_add_drain_cpu+0x56f/0x850 mm/swap.c:652
 lru_add_drain+0x10c/0x440 mm/swap.c:752
 unmap_region+0x90/0x2d0 mm/mmap.c:2215
 do_vmi_align_munmap+0xf0c/0x1640 mm/mmap.c:2465
 do_vmi_munmap+0x26e/0x2c0 mm/mmap.c:2527
 mmap_region+0x1f0/0x28d0 mm/mmap.c:2575
 do_mmap+0x831/0xf60 mm/mmap.c:1394
 vm_mmap_pgoff+0x1a2/0x3b0 mm/util.c:543
 ksys_mmap_pgoff+0x7d/0x5a0 mm/mmap.c:1440
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f3d8cb58b74
Code: 63 08 44 89 e8 5b 41 5c 41 5d c3 41 89 ca 41 f7 c1 ff 0f 00 00 74 0c c7 05 f5 46 01 00 16 00 00 00 eb 17 b8 09 00 00 00 0f 05 <48> 3d 00 f0 ff ff 76 0c f7 d8 89 05 dc 46 01 00 48 83 c8 ff c3 0f
RSP: 002b:00007ffe9eea9bd8 EFLAGS: 00000246 ORIG_RAX: 0000000000000009
RAX: ffffffffffffffda RBX: 00007ffe9eea9c88 RCX: 00007f3d8cb58b74
RDX: 0000000000000003 RSI: 000000000000cdd0 RDI: 00007f3d8ca6b000
RBP: 00007ffe9eeaa370 R08: 00000000ffffffff R09: 0000000000000000
R10: 0000000000000032 R11: 0000000000000246 R12: 00007f3d8cb3b5c0
R13: 00007ffe9eeaa3f8 R14: 00007f3d8ca77dd0 R15: 00007f3d8ca6b000
 </TASK>