------------[ cut here ]------------
WARNING: CPU: 1 PID: 6139 at kernel/rcu/tree_stall.h:1050 rcu_check_gp_start_stall+0x2e4/0x470 kernel/rcu/tree_stall.h:1050
Modules linked in:
CPU: 1 UID: 0 PID: 6139 Comm: syz.1.56 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
RIP: 0010:rcu_check_gp_start_stall+0x2e4/0x470 kernel/rcu/tree_stall.h:1050
Code: ff ff 48 c7 c7 80 c4 7d 99 be 04 00 00 00 e8 c3 23 7f 00 4c 89 f7 b8 01 00 00 00 87 05 25 da d6 17 85 c0 0f 85 17 ff ff ff 90 <0f> 0b 90 48 81 ff 40 29 f4 8d 74 47 48 c7 c0 90 10 7d 8f 48 c1 e8
RSP: 0018:ffffc90000a08bb8 EFLAGS: 00010046
RAX: 0000000000000000 RBX: 0000000000000a02 RCX: ffffffff81a6ea4d
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffffffff8df42940
RBP: ffffc90000a08e30 R08: 0000000000000003 R09: 0000000000000004
R10: dffffc0000000000 R11: fffffbfff32fb890 R12: 0000000000002904
R13: 1ffff110171275f2 R14: ffffffff8df42940 R15: dffffc0000000000
FS:  00007f087dc2a6c0(0000) GS:ffff88812623b000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b3120eff8 CR3: 0000000028bac000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 rcu_core+0x5fa/0x1770 kernel/rcu/tree.c:2856
 handle_softirqs+0x286/0x870 kernel/softirq.c:622
 __do_softirq kernel/softirq.c:656 [inline]
 invoke_softirq kernel/softirq.c:496 [inline]
 __irq_exit_rcu+0xca/0x1f0 kernel/softirq.c:723
 irq_exit_rcu+0x9/0x30 kernel/softirq.c:739
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1052 [inline]
 sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1052
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697
RIP: 0010:arch_static_branch arch/x86/include/asm/jump_label.h:36 [inline]
RIP: 0010:native_write_msr arch/x86/include/asm/msr.h:139 [inline]
RIP: 0010:wrmsrq arch/x86/include/asm/msr.h:199 [inline]
RIP: 0010:native_x2apic_icr_write arch/x86/include/asm/apic.h:233 [inline]
RIP: 0010:__x2apic_send_IPI_dest arch/x86/kernel/apic/x2apic_phys.c:113 [inline]
RIP: 0010:x2apic_send_IPI+0x73/0xe0 arch/x86/kernel/apic/x2apic_phys.c:50
Code: 89 f0 48 c1 e8 03 42 0f b6 04 20 84 c0 75 42 41 8b 16 0f ae f0 0f ae e8 83 fb 02 b8 00 04 00 00 0f 45 c3 b9 30 08 00 00 0f 30 <66> 90 5b 41 5c 41 5e 41 5f 5d e9 ce 80 d7 09 cc 89 fe 89 fd 48 c7
RSP: 0018:ffffc9000b6075d0 EFLAGS: 00000206
RAX: 00000000000000fb RBX: 00000000000000fb RCX: 0000000000000830
RDX: 0000000000000000 RSI: 00000000000000fb RDI: 0000000000000000
RBP: ffffc9000b607780 R08: ffffffff8f7ce077 R09: 1ffffffff1ef9c0e
R10: dffffc0000000000 R11: ffffffff8170f180 R12: dffffc0000000000
R13: dffffc0000000000 R14: ffff8880b88201b0 R15: ffffffff8d92ddd0
 arch_send_call_function_single_ipi arch/x86/include/asm/smp.h:95 [inline]
 send_call_function_single_ipi kernel/smp.c:120 [inline]
 smp_call_function_many_cond+0xabb/0x12d0 kernel/smp.c:857
 on_each_cpu_cond_mask+0x3f/0x80 kernel/smp.c:1043
 on_each_cpu include/linux/smp.h:71 [inline]
 smp_text_poke_sync_each_cpu arch/x86/kernel/alternative.c:2713 [inline]
 smp_text_poke_batch_finish+0x5f9/0x1130 arch/x86/kernel/alternative.c:2923
 arch_jump_label_transform_apply+0x1c/0x30 arch/x86/kernel/jump_label.c:146
 static_key_enable_cpuslocked+0x128/0x250 kernel/jump_label.c:210
 static_key_enable+0x1a/0x20 kernel/jump_label.c:223
 tracepoint_add_func+0x994/0xa10 kernel/tracepoint.c:315
 tracepoint_probe_register_prio kernel/tracepoint.c:464 [inline]
 tracepoint_probe_register+0x5d/0x90 kernel/tracepoint.c:484
 perf_trace_event_reg kernel/trace/trace_event_perf.c:129 [inline]
 perf_trace_event_init+0x4e1/0x9d0 kernel/trace/trace_event_perf.c:202
 perf_trace_init+0x23d/0x2d0 kernel/trace/trace_event_perf.c:226
 perf_tp_event_init+0x8d/0x120 kernel/events/core.c:10872
 perf_try_init_event+0x17f/0x870 kernel/events/core.c:12605
 perf_init_event kernel/events/core.c:12703 [inline]
 perf_event_alloc+0x133e/0x2be0 kernel/events/core.c:12978
 __do_sys_perf_event_open kernel/events/core.c:13496 [inline]
 __se_sys_perf_event_open+0x772/0x1d70 kernel/events/core.c:13377
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f087cd8f6c9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f087dc2a038 EFLAGS: 00000246 ORIG_RAX: 000000000000012a
RAX: ffffffffffffffda RBX: 00007f087cfe5fa0 RCX: 00007f087cd8f6c9
RDX: ffffffffffffffff RSI: 0000000000000000 RDI: 0000200000000040
RBP: 00007f087ce11f91 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000
R13: 00007f087cfe6038 R14: 00007f087cfe5fa0 R15: 00007ffe913c2c18
 </TASK>
----------------
Code disassembly (best guess):
   0:	89 f0                	mov    %esi,%eax
   2:	48 c1 e8 03          	shr    $0x3,%rax
   6:	42 0f b6 04 20       	movzbl (%rax,%r12,1),%eax
   b:	84 c0                	test   %al,%al
   d:	75 42                	jne    0x51
   f:	41 8b 16             	mov    (%r14),%edx
  12:	0f ae f0             	mfence
  15:	0f ae e8             	lfence
  18:	83 fb 02             	cmp    $0x2,%ebx
  1b:	b8 00 04 00 00       	mov    $0x400,%eax
  20:	0f 45 c3             	cmovne %ebx,%eax
  23:	b9 30 08 00 00       	mov    $0x830,%ecx
  28:	0f 30                	wrmsr
* 2a:	66 90                	xchg   %ax,%ax <-- trapping instruction
  2c:	5b                   	pop    %rbx
  2d:	41 5c                	pop    %r12
  2f:	41 5e                	pop    %r14
  31:	41 5f                	pop    %r15
  33:	5d                   	pop    %rbp
  34:	e9 ce 80 d7 09       	jmp    0x9d78107
  39:	cc                   	int3
  3a:	89 fe                	mov    %edi,%esi
  3c:	89 fd                	mov    %edi,%ebp
  3e:	48                   	rex.W
  3f:	c7                   	.byte 0xc7