watchdog: BUG: soft lockup - CPU#0 stuck for 133s! [kworker/u4:0:15409] Modules linked in: irq event stamp: 464613 hardirqs last enabled at (464612): [] kvm_wait arch/x86/kernel/kvm.c:1060 [inline] hardirqs last enabled at (464612): [] kvm_wait+0x9d/0x110 arch/x86/kernel/kvm.c:1042 hardirqs last disabled at (464613): [] sysvec_apic_timer_interrupt+0xe/0xc0 arch/x86/kernel/apic/apic.c:1109 softirqs last enabled at (464104): [] spin_unlock_bh include/linux/spinlock.h:396 [inline] softirqs last enabled at (464104): [] batadv_forw_packet_steal+0x115/0x180 net/batman-adv/send.c:588 softirqs last disabled at (464127): [] invoke_softirq kernel/softirq.c:427 [inline] softirqs last disabled at (464127): [] __irq_exit_rcu kernel/softirq.c:632 [inline] softirqs last disabled at (464127): [] irq_exit_rcu+0xb7/0x120 kernel/softirq.c:644 CPU: 0 PID: 15409 Comm: kworker/u4:0 Not tainted 6.5.0-rc2-syzkaller-00066-g46670259519f #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2023 Workqueue: events_unbound toggle_allocation_gate 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 e3 d4 52 00 66 90 0f 00 2d 9a 2d 30 09 fb f4 <48> 83 c4 10 c3 66 90 0f 00 2d 8a 2d 30 09 f4 48 83 c4 10 c3 89 74 RSP: 0018:ffffc90000007d58 EFLAGS: 00000246 RAX: 00000000000716e4 RBX: ffff8880785dd0f0 RCX: 1ffffffff2312374 RDX: 0000000000000000 RSI: ffffffff8a6c6820 RDI: ffffffff8ac7e420 RBP: ffff8880b983d280 R08: 0000000000000001 R09: fffffbfff23081e8 R10: ffffffff91840f47 R11: 000000000000004e R12: 0000000000000000 R13: 0000000000000001 R14: 0000000000000000 R15: ffffed100f0bba1e FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f98ae778038 CR3: 000000000c776000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 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+0x959/0xc70 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+0x20e/0x2b0 kernel/locking/spinlock_debug.c:115 spin_lock include/linux/spinlock.h:351 [inline] net_tx_action+0x573/0xc80 net/core/dev.c:5033 __do_softirq+0x218/0x965 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 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:645 RIP: 0010:csd_lock_wait kernel/smp.c:296 [inline] RIP: 0010:smp_call_function_many_cond+0x4d6/0x1570 kernel/smp.c:835 Code: 0b 00 85 ed 74 4d 48 b8 00 00 00 00 00 fc ff df 4d 89 fc 4c 89 fd 49 c1 ec 03 83 e5 07 49 01 c4 83 c5 03 e8 dc 5e 0b 00 f3 90 <41> 0f b6 04 24 40 38 c5 7c 08 84 c0 0f 85 3c 0e 00 00 8b 43 08 31 RSP: 0018:ffffc9000383f938 EFLAGS: 00000293 RAX: 0000000000000000 RBX: ffff8880b9941860 RCX: 0000000000000000 RDX: ffff8880768f0140 RSI: ffffffff817a29f4 RDI: 0000000000000005 RBP: 0000000000000003 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000000 R12: ffffed101732830d R13: 0000000000000001 R14: ffff8880b983d5c0 R15: ffff8880b9941868 on_each_cpu_cond_mask+0x40/0x90 kernel/smp.c:1003 on_each_cpu include/linux/smp.h:71 [inline] text_poke_sync arch/x86/kernel/alternative.c:2001 [inline] text_poke_bp_batch+0x250/0x780 arch/x86/kernel/alternative.c:2211 text_poke_flush arch/x86/kernel/alternative.c:2402 [inline] text_poke_flush arch/x86/kernel/alternative.c:2399 [inline] text_poke_finish+0x1a/0x30 arch/x86/kernel/alternative.c:2409 arch_jump_label_transform_apply+0x17/0x30 arch/x86/kernel/jump_label.c:146 jump_label_update+0x32e/0x410 kernel/jump_label.c:829 static_key_enable_cpuslocked+0x1b5/0x270 kernel/jump_label.c:205 static_key_enable+0x1a/0x20 kernel/jump_label.c:218 toggle_allocation_gate mm/kfence/core.c:831 [inline] toggle_allocation_gate+0xf4/0x250 mm/kfence/core.c:823 process_one_work+0xaa2/0x16f0 kernel/workqueue.c:2597 worker_thread+0x687/0x1110 kernel/workqueue.c:2748 kthread+0x33a/0x430 kernel/kthread.c:389 ret_from_fork+0x2c/0x70 arch/x86/kernel/process.c:145 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:296 RIP: 0000:0x0 Code: Unable to access opcode bytes at 0xffffffffffffffd6. RSP: 0000:0000000000000000 EFLAGS: 00000000 ORIG_RAX: 0000000000000000 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 16090 Comm: syz-executor.2 Not tainted 6.5.0-rc2-syzkaller-00066-g46670259519f #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2023 RIP: 0010:native_save_fl arch/x86/include/asm/irqflags.h:26 [inline] RIP: 0010:arch_local_save_flags arch/x86/include/asm/irqflags.h:67 [inline] RIP: 0010:arch_local_irq_save arch/x86/include/asm/irqflags.h:103 [inline] RIP: 0010:lock_acquire kernel/locking/lockdep.c:5757 [inline] RIP: 0010:lock_acquire+0x159/0x510 kernel/locking/lockdep.c:5726 Code: e9 03 0f b6 0c 01 48 89 f8 83 e0 07 83 c0 03 38 c8 7c 08 84 c9 0f 85 75 03 00 00 8b 92 c4 0a 00 00 85 d2 0f 85 d2 00 00 00 9c <8f> 44 24 08 48 8b 6c 24 08 fa 48 c7 c7 e0 6a 6c 8a e8 61 6d ca 08 RSP: 0018:ffffc900003e8c00 EFLAGS: 00000046 RAX: 0000000000000007 RBX: 1ffff9200007d183 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff8ac7e3a0 RDI: ffff88807a674cc4 RBP: 0000000000000001 R08: 0000000000000000 R09: fffffbfff1d559aa R10: ffffffff8eaacd57 R11: 0000000000000001 R12: 0000000000000001 R13: 0000000000000000 R14: ffffffff923567e8 R15: 0000000000000000 FS: 00007f4d87e486c0(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2ea22000 CR3: 00000000128aa000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0x3a/0x50 kernel/locking/spinlock.c:162 debug_object_activate+0x1a4/0x490 lib/debugobjects.c:717 debug_hrtimer_activate kernel/time/hrtimer.c:422 [inline] debug_activate kernel/time/hrtimer.c:477 [inline] enqueue_hrtimer+0x23/0x310 kernel/time/hrtimer.c:1087 __run_hrtimer kernel/time/hrtimer.c:1705 [inline] __hrtimer_run_queues+0xa0a/0xc10 kernel/time/hrtimer.c:1752 hrtimer_interrupt+0x31b/0x800 kernel/time/hrtimer.c:1814 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1098 [inline] __sysvec_apic_timer_interrupt+0x14a/0x430 arch/x86/kernel/apic/apic.c:1115 sysvec_apic_timer_interrupt+0x8e/0xc0 arch/x86/kernel/apic/apic.c:1109 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:645 RIP: 0010:hrtimer_active+0x1c/0x240 kernel/time/hrtimer.c:1608 Code: ff 66 66 2e 0f 1f 84 00 00 00 00 00 66 90 f3 0f 1e fa 41 57 48 8d 57 30 41 56 48 8d 4f 38 48 89 d0 41 55 48 c1 e8 03 41 54 55 <53> 48 83 ec 28 48 89 54 24 18 48 ba 00 00 00 00 00 fc ff df 48 01 RSP: 0018:ffffc9000b1a7188 EFLAGS: 00000a02 RAX: 1ffff1100f0bba6e RBX: ffff8880785dd340 RCX: ffff8880785dd378 RDX: ffff8880785dd370 RSI: ffffffff8174c00d RDI: ffff8880785dd340 RBP: ffff8880785dd340 R08: 0000000000000005 R09: 0000000000000000 R10: 00000000ffffffff R11: 0000000000000000 R12: 0000000000000000 R13: ffff8880787e6000 R14: dffffc0000000000 R15: 0000000000000010 hrtimer_try_to_cancel+0x25/0x4b0 kernel/time/hrtimer.c:1331 hrtimer_cancel+0x16/0x40 kernel/time/hrtimer.c:1446 taprio_reset+0x76/0x200 net/sched/sch_taprio.c:2011 qdisc_reset+0xd8/0x620 net/sched/sch_generic.c:1022 dev_reset_queue+0xb1/0x1d0 net/sched/sch_generic.c:1293 netdev_for_each_tx_queue include/linux/netdevice.h:2517 [inline] dev_deactivate_many+0x36f/0xb10 net/sched/sch_generic.c:1359 dev_deactivate+0xed/0x1b0 net/sched/sch_generic.c:1382 qdisc_graft+0xde1/0x1680 net/sched/sch_api.c:1108 tc_modify_qdisc+0xcd2/0x1bf0 net/sched/sch_api.c:1731 rtnetlink_rcv_msg+0x439/0xd30 net/core/rtnetlink.c:6424 netlink_rcv_skb+0x16b/0x440 net/netlink/af_netlink.c:2549 netlink_unicast_kernel net/netlink/af_netlink.c:1339 [inline] netlink_unicast+0x539/0x800 net/netlink/af_netlink.c:1365 netlink_sendmsg+0x93c/0xe30 net/netlink/af_netlink.c:1914 sock_sendmsg_nosec net/socket.c:725 [inline] sock_sendmsg+0xd9/0x180 net/socket.c:748 ____sys_sendmsg+0x6ac/0x940 net/socket.c:2494 ___sys_sendmsg+0x135/0x1d0 net/socket.c:2548 __sys_sendmsg+0x117/0x1e0 net/socket.c:2577 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f4d8707cb29 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f4d87e480c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f4d8719bf80 RCX: 00007f4d8707cb29 RDX: 0000000000000000 RSI: 00000000200007c0 RDI: 0000000000000004 RBP: 00007f4d870c847a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007f4d8719bf80 R15: 00007ffc98a82768