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WARNING: kernel/rcu/tree_stall.h:1049 at rcu_check_gp_start_stall+0x2e4/0x470, CPU#0: kworker/u9:15/12558
Modules linked in:
CPU: 0 UID: 0 PID: 12558 Comm: kworker/u9:15 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
Workqueue: events_unbound toggle_allocation_gate
RIP: 0010:rcu_check_gp_start_stall+0x2e4/0x470
Code: ff ff 48 c7 c7 a0 e5 de 99 be 04 00 00 00 e8 03 ac 80 00 4c 89 f7 b8 01 00 00 00 87 05 85 15 36 18 85 c0 0f 85 17 ff ff ff 90 <0f> 0b 90 48 81 ff c0 04 36 8e 74 47 48 c7 c0 a0 08 cf 8f 48 c1 e8
RSP: 0018:ffffc90000007d98 EFLAGS: 00010046
RAX: 0000000000000000 RBX: 0000000000000246 RCX: ffffffff81a8d00d
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffffffff8e3604c0
RBP: ffffc90000007f30 R08: 0000000000000003 R09: 0000000000000004
R10: dffffc0000000000 R11: fffffbfff33bdcb4 R12: 0000000000002904
R13: 1ffff1102420771a R14: ffffffff8e3604c0 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff88818e329000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f89f3891d58 CR3: 000000000e146000 CR4: 00000000000006f0
Call Trace:
 <IRQ>
 rcu_core+0x5f1/0x1750
 handle_softirqs+0x22a/0x7c0
 __irq_exit_rcu+0x5f/0x150
 irq_exit_rcu+0x9/0x30
 sysvec_apic_timer_interrupt+0xa6/0xc0
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:smp_call_function_many_cond+0xce5/0x1270
Code: 45 8b 2c 24 44 89 ee 83 e6 01 31 ff e8 94 b4 0b 00 41 83 e5 01 49 bd 00 00 00 00 00 fc ff df 75 07 e8 3f b0 0b 00 eb 38 f3 90 <42> 0f b6 04 2b 84 c0 75 11 41 f7 04 24 01 00 00 00 74 1e e8 23 b0
RSP: 0018:ffffc900033576a0 EFLAGS: 00000293
RAX: ffffffff81b6d15d RBX: 1ffff110478c8129 RCX: ffff8881147f57c0
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc900033577e0 R08: ffffffff8fced877 R09: 1ffffffff1f9db0e
R10: dffffc0000000000 R11: fffffbfff1f9db0f R12: ffff88823c640948
R13: dffffc0000000000 R14: ffff88812103bb00 R15: 0000000000000001
 on_each_cpu_cond_mask+0x3f/0x80
 smp_text_poke_batch_finish+0x5f5/0x1160
 arch_jump_label_transform_apply+0x1c/0x30
 static_key_enable_cpuslocked+0x128/0x240
 static_key_enable+0x1a/0x20
 toggle_allocation_gate+0xab/0x250
 process_scheduled_works+0xaec/0x17a0
 worker_thread+0x89f/0xd90
 kthread+0x726/0x8b0
 ret_from_fork+0x51b/0xa40
 ret_from_fork_asm+0x1a/0x30
 </TASK>
