rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	0-...!: (10501 ticks this GP) idle=47e/1/0x4000000000000004 softirq=151292/151292 fqs=19 
	(t=10502 jiffies g=167881 q=400)
rcu: rcu_preempt kthread starved for 10458 jiffies! g167881 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1
rcu: RCU grace-period kthread stack dump:
rcu_preempt     R  running task    29128    10      2 0x80004000
Call Trace:
 context_switch kernel/sched/core.c:3254 [inline]
 __schedule+0x877/0xc50 kernel/sched/core.c:3880
 schedule+0x131/0x1e0 kernel/sched/core.c:3947
 schedule_timeout+0x14f/0x240 kernel/time/timer.c:1807
 rcu_gp_fqs_loop kernel/rcu/tree.c:1611 [inline]
 rcu_gp_kthread+0xef8/0x1790 kernel/rcu/tree.c:1768
 kthread+0x332/0x350 kernel/kthread.c:255
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:352
NMI backtrace for cpu 0
CPU: 0 PID: 14792 Comm: syz-executor.3 Not tainted 5.3.0 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 <IRQ>
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1d8/0x2f8 lib/dump_stack.c:113
 nmi_cpu_backtrace+0xaf/0x1a0 lib/nmi_backtrace.c:101
 nmi_trigger_cpumask_backtrace+0x174/0x290 lib/nmi_backtrace.c:62
 arch_trigger_cpumask_backtrace+0x10/0x20 arch/x86/kernel/apic/hw_nmi.c:38
 trigger_single_cpu_backtrace include/linux/nmi.h:164 [inline]
 rcu_dump_cpu_stacks+0x15a/0x220 kernel/rcu/tree_stall.h:254
 print_cpu_stall kernel/rcu/tree_stall.h:455 [inline]
 check_cpu_stall kernel/rcu/tree_stall.h:529 [inline]
 rcu_pending kernel/rcu/tree.c:2736 [inline]
 rcu_sched_clock_irq+0xb95/0x16d0 kernel/rcu/tree.c:2183
 update_process_times+0x134/0x190 kernel/time/timer.c:1639
 tick_sched_handle kernel/time/tick-sched.c:167 [inline]
 tick_sched_timer+0x263/0x420 kernel/time/tick-sched.c:1296
 __run_hrtimer kernel/time/hrtimer.c:1389 [inline]
 __hrtimer_run_queues+0x403/0x850 kernel/time/hrtimer.c:1451
 hrtimer_interrupt+0x38c/0xda0 kernel/time/hrtimer.c:1509
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1110 [inline]
 smp_apic_timer_interrupt+0x109/0x280 arch/x86/kernel/apic/apic.c:1135
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:830
RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:768 [inline]
RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:160 [inline]
RIP: 0010:_raw_spin_unlock_irqrestore+0xad/0xe0 kernel/locking/spinlock.c:191
Code: b9 00 00 00 00 00 fc ff df 80 3c 08 00 74 0c 48 c7 c7 80 87 8a 88 e8 72 87 30 fa 48 83 3d fa 86 0e 01 00 74 2d 4c 89 f7 57 9d <0f> 1f 44 00 00 bf 01 00 00 00 e8 d4 82 d4 f9 65 8b 05 29 fd 85 78
RSP: 0018:ffff8880aea09bd8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
RAX: 1ffffffff11150f0 RBX: ffff8880aea24a80 RCX: dffffc0000000000
RDX: 0000000000000103 RSI: ffffffff816369d1 RDI: 0000000000000286
RBP: ffff8880aea09be8 R08: ffffffff81790e44 R09: ffffed1015d44951
R10: ffffed1015d44951 R11: 0000000000000000 R12: ffff8880aea24a80
R13: ffff888040ac1e50 R14: 0000000000000286 R15: 0000000000000000
 __mod_timer+0xf01/0x1590 kernel/time/timer.c:1053
 mod_timer+0x1f/0x30 kernel/time/timer.c:1096
 pie_timer+0x6c4/0x7d0 net/sched/sch_pie.c:454
 call_timer_fn+0x95/0x170 kernel/time/timer.c:1322
 expire_timers kernel/time/timer.c:1366 [inline]
 __run_timers+0x79e/0x970 kernel/time/timer.c:1685
 run_timer_softirq+0x4a/0x90 kernel/time/timer.c:1698
 __do_softirq+0x333/0x7c4 arch/x86/include/asm/paravirt.h:778
 invoke_softirq kernel/softirq.c:373 [inline]
 irq_exit+0x227/0x230 kernel/softirq.c:413
 exiting_irq arch/x86/include/asm/apic.h:537 [inline]
 smp_apic_timer_interrupt+0x113/0x280 arch/x86/kernel/apic/apic.c:1137
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:830
 </IRQ>
RIP: 0010:get_subtree_max_size mm/vmalloc.c:387 [inline]
RIP: 0010:find_vmap_lowest_match mm/vmalloc.c:807 [inline]
RIP: 0010:__alloc_vmap_area mm/vmalloc.c:1018 [inline]
RIP: 0010:alloc_vmap_area+0x358/0x1b90 mm/vmalloc.c:1113
Code: 9e 6f d0 ff 48 83 c3 10 48 89 d8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df 80 3c 08 00 74 08 48 89 df e8 5b 6a 09 00 4c 8b 3b <eb> 0e 66 0f 1f 44 00 00 e8 6b 6f d0 ff 45 31 ff 4d 8d 6c 24 e0 4c
RSP: 0018:ffff88803e0ef798 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
RAX: 1ffff110154846e3 RBX: ffff8880aa423718 RCX: dffffc0000000000
RDX: ffffc9000c594000 RSI: 0000000000000ff0 RDI: 0000000000000ff1
RBP: ffff88803e0ef890 R08: ffffffff81a31e04 R09: ffffed1007c1dee8
R10: ffffed1007c1dee8 R11: 0000000000000000 R12: ffff888067e44b60
R13: ffff8880a97241e0 R14: ffff8880aa423728 R15: ffffc8ffffffffff
 __get_vm_area_node+0x19e/0x340 mm/vmalloc.c:2057
 __vmalloc_node_range+0xea/0x890 mm/vmalloc.c:2483
 __vmalloc_node mm/vmalloc.c:2543 [inline]
 __vmalloc_node_flags mm/vmalloc.c:2557 [inline]
 vzalloc+0x73/0x80 mm/vmalloc.c:2602
 bpf_check+0x112/0xe730 kernel/bpf/verifier.c:9232
 bpf_prog_load kernel/bpf/syscall.c:1698 [inline]
 __do_sys_bpf+0x7a38/0xbed0 kernel/bpf/syscall.c:2855
 __se_sys_bpf kernel/bpf/syscall.c:2814 [inline]
 __x64_sys_bpf+0x7a/0x90 kernel/bpf/syscall.c:2814
 do_syscall_64+0xfe/0x140 arch/x86/entry/common.c:296
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x4598e9
Code: fd b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 cb b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007fbd0d569c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00000000004598e9
RDX: 0000000000000048 RSI: 0000000020000200 RDI: 0000000000000005
RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fbd0d56a6d4
R13: 00000000004bfd15 R14: 00000000004d1a58 R15: 00000000ffffffff