0xb40: [316427756434] delta:0 TIME EXTEND
0xb48: [316427756434] delta:0 .d
expected end:0xb6c last event actually ended at:0xb6c
------------[ 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.2.2310/11669
Modules linked in:
CPU: 0 UID: 0 PID: 11669 Comm: syz.2.2310 Tainted: G L syzkaller #0 PREEMPT(full)
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
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 8c e5 21 10 31 ff 89 ee e8 3f 17 e9 00 85 ed 0f 84 58 b2 eb 00 e8 c2 1c e9 00 90 <0f> 0b 90 e9 03 b0 eb 00 49 c7 c7 60 5e f6 8b e9 51 fe ff ff e8 98
RSP: 0018:ffffc90000007858 EFLAGS: 00010046
RAX: 0000000000000000 RBX: 1ffff92000000f11 RCX: 0000000000000103
RDX: ffff8880556ba580 RSI: ffffffff8123280e RDI: ffff8880556ba580
RBP: 0000000000000003 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000002
R13: ffff88801c095000 R14: ffff888071530000 R15: ffffffff8bf65a00
FS: 00007f3b30b456c0(0000) GS:ffff888123b4f000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b32f11ff8 CR3: 00000000586ea000 CR4: 00000000003526f0
Call Trace:
__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_msr_trace_class arch/x86/include/asm/msr-trace.h:21 [inline]
trace_event_raw_event_msr_trace_class+0xe8/0x270 arch/x86/include/asm/msr-trace.h:21
__do_trace_write_msr arch/x86/include/asm/msr-trace.h:45 [inline]
trace_write_msr+0x160/0x1f0 arch/x86/include/asm/msr-trace.h:45
apic_write arch/x86/include/asm/apic.h:405 [inline]
lapic_next_event+0x10/0x20 arch/x86/kernel/apic/apic.c:418
clockevents_program_event+0x375/0x820 kernel/time/clockevents.c:372
tick_program_event+0xa9/0x140 kernel/time/tick-oneshot.c:48
hrtimer_rearm_event kernel/time/hrtimer.c:710 [inline]
hrtimer_rearm kernel/time/hrtimer.c:2176 [inline]
__hrtimer_rearm_deferred+0x234/0x7b0 kernel/time/hrtimer.c:2196
hrtimer_rearm_deferred_tif include/linux/hrtimer_rearm.h:58 [inline]
hrtimer_rearm_deferred include/linux/hrtimer_rearm.h:67 [inline]
irqentry_exit_to_kernel_mode_after_preempt include/linux/irq-entry-common.h:505 [inline]
irqentry_exit_to_kernel_mode include/linux/irq-entry-common.h:542 [inline]
irqentry_exit+0x5f3/0xa10 kernel/entry/common.c:167
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:674
RIP: 0010:handle_softirqs+0x1a9/0x9d0 kernel/softirq.c:631
Code: 89 6c 24 28 4c 89 7c 24 10 48 c7 c7 60 9d ed 8b e8 4c 49 08 0a 31 d2 65 66 89 15 ce ce c2 12 e8 cd 5a 4a 00 fb bb ff ff ff ff <48> c7 c5 c0 a0 a0 8e 41 0f bc dc 83 c3 01 0f 85 9d 00 00 00 e9 b9
RSP: 0018:ffffc90000007f20 EFLAGS: 00000202
RAX: 000000000000027a RBX: 00000000ffffffff RCX: 0000000000000004
RDX: 0000000000000100 RSI: ffffffff8e38e957 RDI: ffffffff8c623980
RBP: 1ffff92000000fec R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000004
R13: 000000000000000a R14: 00000001000005ce R15: fffffbfff1d41e50
__do_softirq kernel/softirq.c:679 [inline]
invoke_softirq kernel/softirq.c:519 [inline]
__irq_exit_rcu+0x16a/0x210 kernel/softirq.c:758
irq_exit_rcu+0x9/0x30 kernel/softirq.c:775
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1062 [inline]
sysvec_apic_timer_interrupt+0xa3/0xc0 arch/x86/kernel/apic/apic.c:1062
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:674
RIP: 0010:tracing_reset_online_cpus+0x0/0x200 kernel/trace/trace.c:1547
Code: fc ff e8 d3 56 fa ff 5b 5d c3 cc cc cc cc e8 b7 c1 6d 00 eb c0 0f 1f 44 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1e fa 41 57 41 56 41 55 49 bd 00 00 00 00 00 fc ff df 41 54
RSP: 0018:ffffc9000401fbf8 EFLAGS: 00010246
RAX: dffffc0000000000 RBX: 0000000000000002 RCX: ffffc9000e121000
RDX: 1ffff1100380ac19 RSI: ffffffff82108e61 RDI: ffffffff8ee828f8
RBP: 0000000000000000 R08: 0000000000000000 R09: fffffbfff228ab4b
R10: ffffc9000401fc00 R11: 0000000000000000 R12: ffffffff8bf708b8
R13: ffffffff8ee828e0 R14: ffffffff8ee829e8 R15: ffffffff8ee82900
tracing_set_clock+0x16f/0x3a0 kernel/trace/trace.c:6475
tracing_clock_write+0x16a/0x270 kernel/trace/trace.c:6512
vfs_write+0x2aa/0x1050 fs/read_write.c:685
ksys_write+0x12a/0x250 fs/read_write.c:739
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: 0033:0x7f3b2fb9e159
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f3b30b45028 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f3b2fe25fa0 RCX: 00007f3b2fb9e159
RDX: 0000000000000007 RSI: 0000200000000300 RDI: 0000000000000004
RBP: 00007f3b2fc3506b R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f3b2fe26038 R14: 00007f3b2fe25fa0 R15: 00007ffcb1d09f38
----------------
Code disassembly (best guess):
0: 89 6c 24 28 mov %ebp,0x28(%rsp)
4: 4c 89 7c 24 10 mov %r15,0x10(%rsp)
9: 48 c7 c7 60 9d ed 8b mov $0xffffffff8bed9d60,%rdi
10: e8 4c 49 08 0a call 0xa084961
15: 31 d2 xor %edx,%edx
17: 65 66 89 15 ce ce c2 mov %dx,%gs:0x12c2cece(%rip) # 0x12c2ceed
1e: 12
1f: e8 cd 5a 4a 00 call 0x4a5af1
24: fb sti
25: bb ff ff ff ff mov $0xffffffff,%ebx
* 2a: 48 c7 c5 c0 a0 a0 8e mov $0xffffffff8ea0a0c0,%rbp <-- trapping instruction
31: 41 0f bc dc bsf %r12d,%ebx
35: 83 c3 01 add $0x1,%ebx
38: 0f 85 9d 00 00 00 jne 0xdb
3e: e9 .byte 0xe9
3f: b9 .byte 0xb9