watchdog: BUG: soft lockup - CPU#0 stuck for 143s! [swapper/0:0] Modules linked in: irq event stamp: 10301515 hardirqs last enabled at (10301514): [] asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:645 hardirqs last disabled at (10301515): [] sysvec_apic_timer_interrupt+0xf/0xc0 arch/x86/kernel/apic/apic.c:1106 softirqs last enabled at (10271842): [] invoke_softirq kernel/softirq.c:445 [inline] softirqs last enabled at (10271842): [] __irq_exit_rcu+0x114/0x190 kernel/softirq.c:650 softirqs last disabled at (10271963): [] invoke_softirq kernel/softirq.c:445 [inline] softirqs last disabled at (10271963): [] __irq_exit_rcu+0x114/0x190 kernel/softirq.c:650 CPU: 0 PID: 0 Comm: swapper/0 Not tainted 6.4.0-rc4-syzkaller-00268-g51f269a6ecc7 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/25/2023 RIP: 0010:__list_del include/linux/list.h:114 [inline] RIP: 0010:__list_del_entry include/linux/list.h:137 [inline] RIP: 0010:__list_del_entry include/linux/list.h:132 [inline] RIP: 0010:list_move_tail include/linux/list.h:229 [inline] RIP: 0010:fq_pie_qdisc_dequeue+0x6b8/0x9c0 net/sched/sch_fq_pie.c:248 Code: 08 4c 8b 3b 48 89 f8 48 c1 e8 03 42 80 3c 20 00 0f 85 c5 02 00 00 49 8d 7f 08 4c 8b 6b 08 48 89 f8 48 c1 e8 03 42 80 3c 20 00 <0f> 85 a1 02 00 00 4c 89 e8 4d 89 6f 08 48 c1 e8 03 42 80 3c 20 00 RSP: 0018:ffffc90000007620 EFLAGS: 00000246 RAX: 1ffff1100468165d RBX: ffff888086681550 RCX: 0000000000000100 RDX: ffffffff8c495780 RSI: ffffffff883f0a69 RDI: ffff88802340b2e8 RBP: ffff88802340b000 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000005 R12: dffffc0000000000 R13: ffff88802340b2e0 R14: ffff88802340b2f0 R15: ffff88802340b2e0 FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020001640 CR3: 000000003699e000 CR4: 0000000000350ef0 Call Trace: dequeue_skb net/sched/sch_generic.c:292 [inline] qdisc_restart net/sched/sch_generic.c:397 [inline] __qdisc_run+0x1b2/0x1780 net/sched/sch_generic.c:415 __dev_xmit_skb net/core/dev.c:3868 [inline] __dev_queue_xmit+0x2215/0x3b10 net/core/dev.c:4210 dev_queue_xmit include/linux/netdevice.h:3085 [inline] neigh_connected_output+0x3c2/0x550 net/core/neighbour.c:1581 neigh_output include/net/neighbour.h:544 [inline] ip6_finish_output2+0x55a/0x1560 net/ipv6/ip6_output.c:134 __ip6_finish_output net/ipv6/ip6_output.c:195 [inline] ip6_finish_output+0x69a/0x1170 net/ipv6/ip6_output.c:206 NF_HOOK_COND include/linux/netfilter.h:292 [inline] ip6_output+0x1f1/0x540 net/ipv6/ip6_output.c:227 dst_output include/net/dst.h:458 [inline] NF_HOOK include/linux/netfilter.h:303 [inline] ndisc_send_skb+0xa63/0x1850 net/ipv6/ndisc.c:508 ndisc_send_rs+0x132/0x6f0 net/ipv6/ndisc.c:718 addrconf_rs_timer+0x3f1/0x870 net/ipv6/addrconf.c:3936 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 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:acpi_safe_halt+0x40/0x50 drivers/acpi/processor_idle.c:113 Code: eb 03 83 e3 01 89 de 0f 1f 44 00 00 84 db 75 1b 0f 1f 44 00 00 eb 0c 0f 1f 44 00 00 0f 00 2d 27 36 a2 00 0f 1f 44 00 00 fb f4 5b c3 cc 0f 1f 00 66 0f 1f 84 00 00 00 00 00 55 48 89 fd 53 0f RSP: 0018:ffffffff8c407d18 EFLAGS: 00000246 RAX: ffffffff8c495780 RBX: 0000000000000000 RCX: ffffffff8a0fd585 RDX: 0000000000000001 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffff888014a81064 R08: 0000000000000001 R09: ffff8880b9836ceb R10: ffffed1017306d9d R11: 0000000000000000 R12: 0000000000000001 R13: ffff888014a81000 R14: ffff888014a81064 R15: 0000000000000000 acpi_idle_do_entry+0x53/0x70 drivers/acpi/processor_idle.c:573 acpi_idle_enter+0x173/0x290 drivers/acpi/processor_idle.c:711 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 rest_init+0x16f/0x2b0 init/main.c:735 arch_call_rest_init+0x13/0x30 init/main.c:834 start_kernel+0x3b6/0x490 init/main.c:1088 x86_64_start_reservations+0x18/0x30 arch/x86/kernel/head64.c:556 x86_64_start_kernel+0xb3/0xc0 arch/x86/kernel/head64.c:537 secondary_startup_64_no_verify+0xf4/0xfb 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-rc4-syzkaller-00268-g51f269a6ecc7 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/25/2023 RIP: 0010:kvm_wait+0xa8/0x110 arch/x86/kernel/kvm.c:1064 Code: fa 83 e2 07 38 d0 7f 04 84 c0 75 66 0f b6 07 40 38 c6 74 1b 48 83 c4 10 c3 c3 e8 53 9f 52 00 eb 07 0f 00 2d 0a 47 11 09 fb f4 <48> 83 c4 10 c3 eb 07 0f 00 2d fa 46 11 09 f4 48 83 c4 10 c3 89 74 RSP: 0018:ffffc900001e0b48 EFLAGS: 00000202 RAX: 0000000001399de6 RBX: 0000000000000000 RCX: 1ffffffff22ae1ce RDX: 0000000000000000 RSI: 0000000000000102 RDI: 0000000000000000 RBP: ffff88802340b0f0 R08: 0000000000000001 R09: ffffffff91528dbf R10: 0000000000000001 R11: 0000000000094001 R12: 0000000000000000 R13: ffffed100468161e R14: 0000000000000001 R15: ffff8880b993d440 FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fa1a9786058 CR3: 000000003699e000 CR4: 0000000000350ee0 Call Trace: pv_wait arch/x86/include/asm/paravirt.h:598 [inline] pv_wait_head_or_lock kernel/locking/qspinlock_paravirt.h:470 [inline] __pv_queued_spin_lock_slowpath+0x8cb/0xb50 kernel/locking/qspinlock.c:511 pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:586 [inline] queued_spin_lock_slowpath arch/x86/include/asm/qspinlock.h:51 [inline] queued_spin_lock include/asm-generic/qspinlock.h:114 [inline] do_raw_spin_lock+0x204/0x2b0 kernel/locking/spinlock_debug.c:115 spin_lock include/linux/spinlock.h:350 [inline] fq_pie_timer+0x96/0x2a0 net/sched/sch_fq_pie.c:377 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 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:acpi_safe_halt+0x40/0x50 drivers/acpi/processor_idle.c:113 Code: eb 03 83 e3 01 89 de 0f 1f 44 00 00 84 db 75 1b 0f 1f 44 00 00 eb 0c 0f 1f 44 00 00 0f 00 2d 27 36 a2 00 0f 1f 44 00 00 fb f4 5b c3 cc 0f 1f 00 66 0f 1f 84 00 00 00 00 00 55 48 89 fd 53 0f RSP: 0018:ffffc90000177d18 EFLAGS: 00000246 RAX: ffff888016659dc0 RBX: 0000000000000000 RCX: ffffffff8a0fd585 RDX: 0000000000000001 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffff888014a81864 R08: 0000000000000001 R09: ffff8880b9936ceb R10: ffffed1017326d9d R11: 0000000000000000 R12: 0000000000000001 R13: ffff888014a81800 R14: ffff888014a81864 R15: 0000000000000000 acpi_idle_do_entry+0x53/0x70 drivers/acpi/processor_idle.c:573 acpi_idle_enter+0x173/0x290 drivers/acpi/processor_idle.c:711 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+0x221/0x2b0 arch/x86/kernel/smpboot.c:269 secondary_startup_64_no_verify+0xf4/0xfb