0xd50: [214977834541] delta:0 TIME EXTEND
 0xd58:  [214977834541] delta:0 .
expected end:0xd8c last event actually ended at:0xd8c
------------[ 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#1: syz-executor/5727
Modules linked in:
CPU: 1 UID: 0 PID: 5727 Comm: syz-executor 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 9c e8 21 10 31 ff 89 ee e8 6f 1a e9 00 85 ed 0f 84 88 b5 eb 00 e8 f2 1f e9 00 90 <0f> 0b 90 e9 33 b3 eb 00 49 c7 c7 80 5e f6 8b e9 51 fe ff ff e8 c8
RSP: 0018:ffffc90003ce7800 EFLAGS: 00010293
RAX: 0000000000000000 RBX: 1ffff9200079cf06 RCX: 0000000000000002
RDX: ffff88802daaa580 RSI: ffffffff812327fe RDI: ffff88802daaa580
RBP: 0000000000000003 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000999
R13: ffff88801d6c5800 R14: ffff888038afd000 R15: ffffffff8bf65a20
FS:  0000555572d6e500(0000) GS:ffff8880d5c4e000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f21c61556c8 CR3: 000000004a97a000 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
 do_trace_event_raw_event_sched_process_fork include/trace/events/sched.h:396 [inline]
 trace_event_raw_event_sched_process_fork+0x109/0x460 include/trace/events/sched.h:396
 __do_trace_sched_process_fork include/trace/events/sched.h:396 [inline]
 trace_sched_process_fork include/trace/events/sched.h:396 [inline]
 kernel_clone+0x461/0x9d0 kernel/fork.c:2781
 __do_sys_clone+0xd9/0x120 kernel/fork.c:2913
 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
 do_syscall_64+0x123/0x790 arch/x86/entry/syscall_64.c:84
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f21c53c6c12
Code: 89 e7 e8 71 8b f7 ff 45 31 c0 31 d2 31 f6 64 48 8b 04 25 10 00 00 00 bf 11 00 20 01 4c 8d 90 d0 02 00 00 b8 38 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 66 89 c5 85 c0 75 3b 64 48 8b 04 25 10 00 00
RSP: 002b:00007fffdd8cbaf0 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 00007fffdd8cbaf0 RCX: 00007f21c53c6c12
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011
RBP: 00007fffdd8cbc7c R08: 0000000000000000 R09: 0000000000000001
R10: 0000555572d6e7d0 R11: 0000000000000246 R12: 0000000000000001
R13: 00000000000927c0 R14: 000000000005a3ed R15: 00007fffdd8cbcd0
 </TASK>