rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	0-...!: (9 ticks this GP) idle=62fc/1/0x4000000000000000 softirq=114397/114397 fqs=0
	(detected by 1, t=12551 jiffies, g=136429, q=568 ncpus=2)
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 7478 Comm: kworker/u4:8 Not tainted 5.19.0-syzkaller-11908-g7ebfc85e2cd7 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022
Workqueue: events_unbound toggle_allocation_gate
RIP: 0010:__lock_acquire+0x2fe/0x56d0 kernel/locking/lockdep.c:4990
Code: ea 03 80 3c 02 00 0f 85 b5 3b 00 00 48 8b 44 24 20 49 8d b5 5c 0a 00 00 48 ba 00 00 00 00 00 fc ff df 48 89 f1 48 89 74 24 40 <49> 89 44 24 18 65 8b 05 5e 62 a3 7e 85 c0 0f 95 c0 48 c1 e9 03 83
RSP: 0018:ffffc900000077c0 EFLAGS: 00000046
RAX: 0000000000000000 RBX: ffff88802211c578 RCX: ffff88802211c55c
RDX: dffffc0000000000 RSI: ffff88802211c55c RDI: ffff88802211c6c8
RBP: 0000000000000000 R08: 1ffff110044238d6 R09: 0000000000000001
R10: fffffbfff1bbd0ea R11: 0000000000000001 R12: ffff88802211c6b8
R13: ffff88802211bb00 R14: ffffffff913eb5a0 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020000800 CR3: 000000000bc8e000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 lock_acquire kernel/locking/lockdep.c:5666 [inline]
 lock_acquire+0x1ab/0x570 kernel/locking/lockdep.c:5631
 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
 _raw_spin_lock_irqsave+0x39/0x50 kernel/locking/spinlock.c:162
 debug_object_deactivate lib/debugobjects.c:732 [inline]
 debug_object_deactivate+0x101/0x300 lib/debugobjects.c:720
 debug_hrtimer_deactivate kernel/time/hrtimer.c:425 [inline]
 debug_deactivate kernel/time/hrtimer.c:481 [inline]
 __run_hrtimer kernel/time/hrtimer.c:1653 [inline]
 __hrtimer_run_queues+0x3f3/0xe40 kernel/time/hrtimer.c:1749
 hrtimer_interrupt+0x31c/0x790 kernel/time/hrtimer.c:1811
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1095 [inline]
 __sysvec_apic_timer_interrupt+0x146/0x530 arch/x86/kernel/apic/apic.c:1112
 sysvec_apic_timer_interrupt+0x40/0xc0 arch/x86/kernel/apic/apic.c:1106
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:649
RIP: 0010:kvm_wait+0x98/0x100 arch/x86/kernel/kvm.c:1070
Code: fa 83 e2 07 38 d0 7f 04 84 c0 75 63 0f b6 07 40 38 c6 74 35 48 83 c4 10 c3 c3 e8 63 f9 4c 00 66 90 0f 00 2d 5a 44 b4 08 fb f4 <48> 83 c4 10 c3 89 74 24 0c 48 89 3c 24 e8 36 f8 4c 00 8b 74 24 0c
RSP: 0018:ffffc90000007d98 EFLAGS: 00000246
RAX: 00000000001a14be RBX: 0000000000000000 RCX: 1ffffffff2124b76
RDX: 0000000000000000 RSI: 0000000000000102 RDI: 0000000000000000
RBP: ffff88807a5dc0f0 R08: 0000000000000001 R09: ffffffff908dba07
R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000000
R13: ffffed100f4bb81e R14: 0000000000000001 R15: ffff8880b9a3adc0
 pv_wait arch/x86/include/asm/paravirt.h:603 [inline]
 pv_wait_head_or_lock kernel/locking/qspinlock_paravirt.h:470 [inline]
 __pv_queued_spin_lock_slowpath+0x8c7/0xb50 kernel/locking/qspinlock.c:511
 pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:591 [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+0x200/0x2a0 kernel/locking/spinlock_debug.c:115
 spin_lock include/linux/spinlock.h:349 [inline]
 net_tx_action+0x537/0xd20 net/core/dev.c:5070
 __do_softirq+0x1d3/0x9c6 kernel/softirq.c:571
 invoke_softirq kernel/softirq.c:445 [inline]
 __irq_exit_rcu+0x123/0x180 kernel/softirq.c:650
 irq_exit_rcu+0x5/0x20 kernel/softirq.c:662
 sysvec_apic_timer_interrupt+0x93/0xc0 arch/x86/kernel/apic/apic.c:1106
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:649
RIP: 0010:csd_lock_wait kernel/smp.c:414 [inline]
RIP: 0010:smp_call_function_many_cond+0x5e7/0x1430 kernel/smp.c:988
Code: ef af 0a 00 f3 90 41 0f b6 04 24 40 38 c5 7c 08 84 c0 0f 85 b5 0b 00 00 8b 43 08 31 ff 83 e0 01 41 89 c7 89 c6 e8 89 ac 0a 00 <45> 85 ff 75 d0 e8 bf af 0a 00 e9 4f fe ff ff e8 b5 af 0a 00 44 8b
RSP: 0018:ffffc9000508f948 EFLAGS: 00000293
RAX: 0000000000000000 RBX: ffff8880b9b3edc0 RCX: ffffffff81715747
RDX: ffff88802211bb00 RSI: 0000000000000000 RDI: 0000000000000005
RBP: 0000000000000003 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000000 R12: ffffed1017367db9
R13: 0000000000000001 R14: dffffc0000000000 R15: 0000000000000001
 on_each_cpu_cond_mask+0x56/0xa0 kernel/smp.c:1154
 on_each_cpu include/linux/smp.h:71 [inline]
 text_poke_sync arch/x86/kernel/alternative.c:1302 [inline]
 text_poke_bp_batch+0x3f6/0x6c0 arch/x86/kernel/alternative.c:1543
 text_poke_flush arch/x86/kernel/alternative.c:1660 [inline]
 text_poke_flush arch/x86/kernel/alternative.c:1657 [inline]
 text_poke_finish+0x16/0x30 arch/x86/kernel/alternative.c:1667
 arch_jump_label_transform_apply+0x13/0x20 arch/x86/kernel/jump_label.c:146
 jump_label_update+0x32f/0x410 kernel/jump_label.c:801
 static_key_enable_cpuslocked+0x1b1/0x260 kernel/jump_label.c:177
 static_key_enable+0x16/0x20 kernel/jump_label.c:190
 toggle_allocation_gate mm/kfence/core.c:811 [inline]
 toggle_allocation_gate+0x100/0x390 mm/kfence/core.c:803
 process_one_work+0x991/0x1610 kernel/workqueue.c:2289
 worker_thread+0x665/0x1080 kernel/workqueue.c:2436
 kthread+0x2e4/0x3a0 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
 </TASK>
rcu: rcu_preempt kthread starved for 12551 jiffies! g136429 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0
rcu: 	Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior.
rcu: RCU grace-period kthread stack dump:
task:rcu_preempt     state:R  running task     stack:28728 pid:   16 ppid:     2 flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5182 [inline]
 __schedule+0xadf/0x52b0 kernel/sched/core.c:6494
 schedule+0xda/0x1b0 kernel/sched/core.c:6570
 schedule_timeout+0x14a/0x2a0 kernel/time/timer.c:1935
 rcu_gp_fqs_loop+0x190/0x910 kernel/rcu/tree.c:1657
 rcu_gp_kthread+0x236/0x360 kernel/rcu/tree.c:1854
 kthread+0x2e4/0x3a0 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
 </TASK>
rcu: Stack dump where RCU GP kthread last ran:
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 7478 Comm: kworker/u4:8 Not tainted 5.19.0-syzkaller-11908-g7ebfc85e2cd7 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022
Workqueue: events_unbound toggle_allocation_gate
RIP: 0010:__lock_is_held kernel/locking/lockdep.c:5407 [inline]
RIP: 0010:lock_is_held_type+0xa7/0x140 kernel/locking/lockdep.c:5709
Code: 12 e9 8a 00 00 00 83 c3 01 41 3b 9c 24 70 0a 00 00 7d 7d 48 63 c3 48 89 ee 48 8d 04 80 4d 8d 7c c5 00 4c 89 ff e8 99 fe ff ff <85> c0 74 d8 41 83 fe ff 41 bd 01 00 00 00 74 14 31 c0 41 f6 47 22
RSP: 0018:ffffc90000007958 EFLAGS: 00000086
RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000001
RDX: 0000000000000000 RSI: ffffffff8bf89180 RDI: ffff88802211c5a0
RBP: ffffffff8bf89180 R08: 0000000000000000 R09: ffffffff8dde8757
R10: fffffbfff1bbd0ea R11: 0000000000000001 R12: ffff88802211bb00
R13: ffff88802211c578 R14: 00000000ffffffff R15: ffff88802211c5a0
FS:  0000000000000000(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020000800 CR3: 000000000bc8e000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 lock_is_held include/linux/lockdep.h:283 [inline]
 rcu_read_lock_sched_held+0x3a/0x70 kernel/rcu/update.c:125
 trace_lock_acquire include/trace/events/lock.h:24 [inline]
 lock_acquire+0x480/0x570 kernel/locking/lockdep.c:5637
 __raw_spin_lock include/linux/spinlock_api_smp.h:133 [inline]
 _raw_spin_lock+0x2a/0x40 kernel/locking/spinlock.c:154
 spin_lock include/linux/spinlock.h:349 [inline]
 advance_sched+0x53/0x9a0 net/sched/sch_taprio.c:716
 __run_hrtimer kernel/time/hrtimer.c:1685 [inline]
 __hrtimer_run_queues+0x5fa/0xe40 kernel/time/hrtimer.c:1749
 hrtimer_interrupt+0x31c/0x790 kernel/time/hrtimer.c:1811
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1095 [inline]
 __sysvec_apic_timer_interrupt+0x146/0x530 arch/x86/kernel/apic/apic.c:1112
 sysvec_apic_timer_interrupt+0x40/0xc0 arch/x86/kernel/apic/apic.c:1106
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:649
RIP: 0010:kvm_wait+0x98/0x100 arch/x86/kernel/kvm.c:1070
Code: fa 83 e2 07 38 d0 7f 04 84 c0 75 63 0f b6 07 40 38 c6 74 35 48 83 c4 10 c3 c3 e8 63 f9 4c 00 66 90 0f 00 2d 5a 44 b4 08 fb f4 <48> 83 c4 10 c3 89 74 24 0c 48 89 3c 24 e8 36 f8 4c 00 8b 74 24 0c
RSP: 0018:ffffc90000007d98 EFLAGS: 00000246
RAX: 00000000001a14be RBX: 0000000000000000 RCX: 1ffffffff2124b76
RDX: 0000000000000000 RSI: 0000000000000102 RDI: 0000000000000000
RBP: ffff88807a5dc0f0 R08: 0000000000000001 R09: ffffffff908dba07
R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000000
R13: ffffed100f4bb81e R14: 0000000000000001 R15: ffff8880b9a3adc0
 pv_wait arch/x86/include/asm/paravirt.h:603 [inline]
 pv_wait_head_or_lock kernel/locking/qspinlock_paravirt.h:470 [inline]
 __pv_queued_spin_lock_slowpath+0x8c7/0xb50 kernel/locking/qspinlock.c:511
 pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:591 [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+0x200/0x2a0 kernel/locking/spinlock_debug.c:115
 spin_lock include/linux/spinlock.h:349 [inline]
 net_tx_action+0x537/0xd20 net/core/dev.c:5070
 __do_softirq+0x1d3/0x9c6 kernel/softirq.c:571
 invoke_softirq kernel/softirq.c:445 [inline]
 __irq_exit_rcu+0x123/0x180 kernel/softirq.c:650
 irq_exit_rcu+0x5/0x20 kernel/softirq.c:662
 sysvec_apic_timer_interrupt+0x93/0xc0 arch/x86/kernel/apic/apic.c:1106
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:649
RIP: 0010:csd_lock_wait kernel/smp.c:414 [inline]
RIP: 0010:smp_call_function_many_cond+0x5e7/0x1430 kernel/smp.c:988
Code: ef af 0a 00 f3 90 41 0f b6 04 24 40 38 c5 7c 08 84 c0 0f 85 b5 0b 00 00 8b 43 08 31 ff 83 e0 01 41 89 c7 89 c6 e8 89 ac 0a 00 <45> 85 ff 75 d0 e8 bf af 0a 00 e9 4f fe ff ff e8 b5 af 0a 00 44 8b
RSP: 0018:ffffc9000508f948 EFLAGS: 00000293
RAX: 0000000000000000 RBX: ffff8880b9b3edc0 RCX: ffffffff81715747
RDX: ffff88802211bb00 RSI: 0000000000000000 RDI: 0000000000000005
RBP: 0000000000000003 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000000 R12: ffffed1017367db9
R13: 0000000000000001 R14: dffffc0000000000 R15: 0000000000000001
 on_each_cpu_cond_mask+0x56/0xa0 kernel/smp.c:1154
 on_each_cpu include/linux/smp.h:71 [inline]
 text_poke_sync arch/x86/kernel/alternative.c:1302 [inline]
 text_poke_bp_batch+0x3f6/0x6c0 arch/x86/kernel/alternative.c:1543
 text_poke_flush arch/x86/kernel/alternative.c:1660 [inline]
 text_poke_flush arch/x86/kernel/alternative.c:1657 [inline]
 text_poke_finish+0x16/0x30 arch/x86/kernel/alternative.c:1667
 arch_jump_label_transform_apply+0x13/0x20 arch/x86/kernel/jump_label.c:146
 jump_label_update+0x32f/0x410 kernel/jump_label.c:801
 static_key_enable_cpuslocked+0x1b1/0x260 kernel/jump_label.c:177
 static_key_enable+0x16/0x20 kernel/jump_label.c:190
 toggle_allocation_gate mm/kfence/core.c:811 [inline]
 toggle_allocation_gate+0x100/0x390 mm/kfence/core.c:803
 process_one_work+0x991/0x1610 kernel/workqueue.c:2289
 worker_thread+0x665/0x1080 kernel/workqueue.c:2436
 kthread+0x2e4/0x3a0 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
 </TASK>