0x784:  [295954] delta:1 hd
 0x794:  [295955] delta:1 hd
expected end:0x7a4 last event actually ended at:0x7a4
------------[ cut here ]------------
system_state != SYSTEM_BOOTING
WARNING: kernel/trace/ring_buffer.c:4783 at check_buffer.cold+0x1a2/0x1ef kernel/trace/ring_buffer.c:4783, CPU#0: syz.4.661/8089
Modules linked in:
CPU: 0 UID: 0 PID: 8089 Comm: syz.4.661 Tainted: G             L      syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
RIP: 0010:check_buffer.cold+0x1a2/0x1ef kernel/trace/ring_buffer.c:4783
Code: 03 0f b6 14 11 38 d0 7c 04 84 d2 75 5c 8b 2d 4c 22 22 11 31 ff 89 ee e8 9f 75 e8 00 85 ed 0f 84 18 10 eb 00 e8 22 7b e8 00 90 <0f> 0b 90 e9 c3 0d eb 00 49 c7 c7 20 5e f6 8b e9 51 fe ff ff e8 f8
RSP: 0018:ffffc90002daf030 EFLAGS: 00010283
RAX: 000000000002db9e RBX: 1ffff920005b5e0c RCX: ffffc90003669000
RDX: 0000000000080000 RSI: ffffffff8123274e RDI: ffff8880273fa580
RBP: 0000000000000003 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000048416
R13: ffff88801d0e5000 R14: ffff8880238be000 R15: ffffffff8bf659c0
FS:  0000000000000000(0000) GS:ffff88809574a000(0063) knlGS:00000000f5426b40
CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: 00000000f7299bf4 CR3: 000000004db52000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 __rb_reserve_next.constprop.0+0x486/0x1640 kernel/trace/ring_buffer.c:4873
 rb_reserve_next_event kernel/trace/ring_buffer.c:5010 [inline]
 ring_buffer_lock_reserve+0x49a/0x1220 kernel/trace/ring_buffer.c:5069
 __trace_buffer_lock_reserve kernel/trace/trace.h:1677 [inline]
 trace_event_buffer_lock_reserve+0x123/0x6f0 kernel/trace/trace.c:1924
 trace_event_buffer_reserve+0x1f9/0x350 kernel/trace/trace_events.c:715
 __eprobe_trace_func kernel/trace/trace_eprobe.c:443 [inline]
 eprobe_trigger_func+0x558/0x1450 kernel/trace/trace_eprobe.c:487
 data_ops_trigger kernel/trace/trace_events_trigger.c:154 [inline]
 event_triggers_call+0x29e/0x4d0 kernel/trace/trace_events_trigger.c:209
 __event_trigger_test_discard kernel/trace/trace.h:1738 [inline]
 trace_event_buffer_commit+0x66b/0xa80 kernel/trace/trace.c:2014
 do_trace_event_raw_event_msr_trace_class arch/x86/include/asm/msr-trace.h:21 [inline]
 trace_event_raw_event_msr_trace_class+0x17d/0x270 arch/x86/include/asm/msr-trace.h:21
 __do_trace_read_msr arch/x86/include/asm/msr-trace.h:40 [inline]
 trace_read_msr+0x160/0x1f0 arch/x86/include/asm/msr-trace.h:40
 native_read_msr arch/x86/include/asm/msr.h:111 [inline]
 vmx_set_constant_host_state+0x37a/0x740 arch/x86/kvm/vmx/vmx.c:4509
 init_vmcs arch/x86/kvm/vmx/vmx.c:4946 [inline]
 __vmx_vcpu_reset arch/x86/kvm/vmx/vmx.c:5014 [inline]
 vmx_vcpu_reset+0x117b/0x3160 arch/x86/kvm/vmx/vmx.c:5047
 kvm_vcpu_reset+0x9d1/0x1ae0 arch/x86/kvm/x86.c:9619
 kvm_arch_vcpu_create+0x70c/0xab0 arch/x86/kvm/x86.c:9419
 kvm_vm_ioctl_create_vcpu virt/kvm/kvm_main.c:4235 [inline]
 kvm_vm_ioctl+0x1c2d/0x4170 virt/kvm/kvm_main.c:5188
 kvm_vm_compat_ioctl+0x2f7/0x3f0 virt/kvm/kvm_main.c:5490
 __do_compat_sys_ioctl fs/ioctl.c:695 [inline]
 __se_compat_sys_ioctl fs/ioctl.c:638 [inline]
 __ia32_compat_sys_ioctl+0x2cf/0x360 fs/ioctl.c:638
 do_syscall_32_irqs_on arch/x86/entry/syscall_32.c:79 [inline]
 __do_fast_syscall_32+0x13a/0x8b0 arch/x86/entry/syscall_32.c:291
 do_fast_syscall_32+0x32/0x70 arch/x86/entry/syscall_32.c:316
 entry_SYSENTER_compat_after_hwframe+0x84/0x8e
RIP: 0023:0xf7f76fec
Code: Unable to access opcode bytes at 0xf7f76fc2.
RSP: 002b:00000000f542650c EFLAGS: 00000292 ORIG_RAX: 0000000000000036
RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 000000000000ae41
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000292 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
 </TASK>