rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	1-....: (1 GPs behind) idle=e2bc/1/0x4000000000000000 softirq=14981/14982 fqs=5249
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:   973096          1            0
rcu: 	cputime:    25771      26708          115   ==> 52480(ms)
rcu: 	(t=10500 jiffies g=8201 q=12707 ncpus=2)
CPU: 1 UID: 0 PID: 6176 Comm: syz.0.130 Not tainted 6.16.0-rc6-syzkaller-00411-g95993dc3039e-dirty #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
RIP: 0010:console_flush_all+0x7f7/0xc40
Code: 48 21 c3 0f 85 e9 01 00 00 e8 75 e7 1e 00 48 8b 5c 24 20 4d 85 f6 75 07 e8 66 e7 1e 00 eb 06 e8 5f e7 1e 00 fb 48 8b 44 24 28 <42> 80 3c 20 00 74 08 48 89 df e8 8a 0a 82 00 48 8b 1b 48 8b 44 24
RSP: 0018:ffffc900001e0620 EFLAGS: 00000246
RAX: 1ffffffff1d36927 RBX: ffffffff8e9b4938 RCX: ffff88810a5fd640
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc900001e0770 R08: ffffffff8fa1e8f7 R09: 1ffffffff1f43d1e
R10: dffffc0000000000 R11: fffffbfff1f43d1f R12: dffffc0000000000
R13: 0000000000000001 R14: 0000000000000200 R15: ffffffff8e9b48e0
FS:  00007ff09e8866c0(0000) GS:ffff8881a3c1f000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00002000000018c0 CR3: 0000000029954000 CR4: 00000000000006f0
Call Trace:
 <IRQ>
 console_unlock+0xc4/0x270
 vprintk_emit+0x5b7/0x7a0
 _printk+0xcf/0x120
 clocksource_watchdog+0xdca/0x11c0
 call_timer_fn+0x17e/0x5f0
 __run_timer_base+0x61a/0x860
 run_timer_softirq+0x67/0x180
 handle_softirqs+0x286/0x870
 __irq_exit_rcu+0xca/0x1f0
 irq_exit_rcu+0x9/0x30
 sysvec_irq_work+0xa3/0xc0
 </IRQ>
 <TASK>
 asm_sysvec_irq_work+0x1a/0x20
RIP: 0010:preempt_schedule_irq+0xb0/0x150
Code: 24 20 f6 44 24 21 02 74 0c 90 0f 0b 48 f7 03 08 00 00 00 74 64 bf 01 00 00 00 e8 8b 2d 21 f6 e8 c6 00 58 f6 fb bf 01 00 00 00 <e8> 1b ab ff ff 48 c7 44 24 40 00 00 00 00 9c 8f 44 24 40 8b 44 24
RSP: 0018:ffffc900066a7d80 EFLAGS: 00000282
RAX: 03e83aa15d889900 RBX: 0000000000000000 RCX: 03e83aa15d889900
RDX: 0000000000000000 RSI: ffffffff8d99883e RDI: 0000000000000001
RBP: ffffc900066a7e20 R08: ffffffff8fa1e8f7 R09: 1ffffffff1f43d1e
R10: dffffc0000000000 R11: fffffbfff1f43d1f R12: 0000000000000000
R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff92000cd4fb0
 irqentry_exit+0x6f/0x90
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:x64_sys_call+0x496/0x21c0
Code: 00 81 fe 58 01 00 00 0f 8f 61 1b 00 00 81 fe 57 01 00 00 0f 84 3b c5 34 00 81 fe 58 01 00 00 0f 84 2f c5 34 00 e9 f1 1c 00 00 <81> fe bd 00 00 00 0f 8e 90 03 00 00 81 fe c4 00 00 00 0f 8e e2 09
RSP: 0018:ffffc900066a7ee8 EFLAGS: 00000293
RAX: 03e83aa15d889900 RBX: ffffc900066a7ef0 RCX: 03e83aa15d889900
RDX: 0000000000000000 RSI: 00000000000000ca RDI: ffffc900066a7f58
RBP: ffffc900066a7f48 R08: ffffffff8fa1e8f7 R09: 1ffffffff1f43d1e
R10: dffffc0000000000 R11: fffffbfff1f43d1f R12: 00000000000000ca
R13: 00000000000000ca R14: ffffc900066a7f58 R15: ffff88810a5fd640
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7ff09d98e9a9
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:00007ff09e8860e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: ffffffffffffffda RBX: 00007ff09dbb5fa8 RCX: 00007ff09d98e9a9
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007ff09dbb5fa8
RBP: 00007ff09dbb5fa0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007ff09dbb5fac
R13: 0000000000000000 R14: 00007ffd82399830 R15: 00007ffd82399918
 </TASK>
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 6176 Comm: syz.0.130 Not tainted 6.16.0-rc6-syzkaller-00411-g95993dc3039e-dirty #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
RIP: 0010:perf_prepare_sample+0x19ad/0x2380
Code: 8b 74 24 10 4c 89 f6 48 81 e6 00 00 80 00 31 ff e8 48 1e d1 ff 4c 89 f0 48 25 00 00 80 00 75 0c e8 58 19 d1 ff 4c 8b 7c 24 38 <eb> 6c e8 4c 19 d1 ff 49 8d 7c 24 40 48 89 f8 48 c1 e8 03 42 80 3c
RSP: 0018:ffffc900001dfd00 EFLAGS: 00000006
RAX: ffffffff81ef0f98 RBX: 0000000000008000 RCX: ffff88810a5fd640
RDX: 0000000000010100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc900001dfdf0 R08: 0000000000000000 R09: ffffffff818d26e8
R10: dffffc0000000000 R11: ffffffff81ef2250 R12: ffffc900001e00c0
R13: dffffc0000000000 R14: 0000000000008083 R15: ffff88803ab8cb00
FS:  00007ff09e8866c0(0000) GS:ffff8881a3c1f000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00002000000018c0 CR3: 0000000029954000 CR4: 00000000000006f0
Call Trace:
 <IRQ>
 perf_event_output_forward+0x151/0x430
 __perf_event_overflow+0x7cf/0xe10
 perf_swevent_hrtimer+0x3c5/0x550
 __hrtimer_run_queues+0x4e0/0xc60
 hrtimer_interrupt+0x45b/0xaa0
 __sysvec_apic_timer_interrupt+0x10b/0x410
 sysvec_apic_timer_interrupt+0x52/0xc0
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:console_flush_all+0x7f7/0xc40
Code: 48 21 c3 0f 85 e9 01 00 00 e8 75 e7 1e 00 48 8b 5c 24 20 4d 85 f6 75 07 e8 66 e7 1e 00 eb 06 e8 5f e7 1e 00 fb 48 8b 44 24 28 <42> 80 3c 20 00 74 08 48 89 df e8 8a 0a 82 00 48 8b 1b 48 8b 44 24
RSP: 0018:ffffc900001e0620 EFLAGS: 00000246
RAX: 1ffffffff1d36927 RBX: ffffffff8e9b4938 RCX: ffff88810a5fd640
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc900001e0770 R08: ffffffff8fa1e8f7 R09: 1ffffffff1f43d1e
R10: dffffc0000000000 R11: fffffbfff1f43d1f R12: dffffc0000000000
R13: 0000000000000001 R14: 0000000000000200 R15: ffffffff8e9b48e0
 console_unlock+0xc4/0x270
 vprintk_emit+0x5b7/0x7a0
 _printk+0xcf/0x120
 clocksource_watchdog+0xdca/0x11c0
 call_timer_fn+0x17e/0x5f0
 __run_timer_base+0x61a/0x860
 run_timer_softirq+0x67/0x180
 handle_softirqs+0x286/0x870
 __irq_exit_rcu+0xca/0x1f0
 irq_exit_rcu+0x9/0x30
 sysvec_irq_work+0xa3/0xc0
 </IRQ>
 <TASK>
 asm_sysvec_irq_work+0x1a/0x20
RIP: 0010:preempt_schedule_irq+0xb0/0x150
Code: 24 20 f6 44 24 21 02 74 0c 90 0f 0b 48 f7 03 08 00 00 00 74 64 bf 01 00 00 00 e8 8b 2d 21 f6 e8 c6 00 58 f6 fb bf 01 00 00 00 <e8> 1b ab ff ff 48 c7 44 24 40 00 00 00 00 9c 8f 44 24 40 8b 44 24
RSP: 0018:ffffc900066a7d80 EFLAGS: 00000282
RAX: 03e83aa15d889900 RBX: 0000000000000000 RCX: 03e83aa15d889900
RDX: 0000000000000000 RSI: ffffffff8d99883e RDI: 0000000000000001
RBP: ffffc900066a7e20 R08: ffffffff8fa1e8f7 R09: 1ffffffff1f43d1e
R10: dffffc0000000000 R11: fffffbfff1f43d1f R12: 0000000000000000
R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff92000cd4fb0
 irqentry_exit+0x6f/0x90
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:x64_sys_call+0x496/0x21c0
Code: 00 81 fe 58 01 00 00 0f 8f 61 1b 00 00 81 fe 57 01 00 00 0f 84 3b c5 34 00 81 fe 58 01 00 00 0f 84 2f c5 34 00 e9 f1 1c 00 00 <81> fe bd 00 00 00 0f 8e 90 03 00 00 81 fe c4 00 00 00 0f 8e e2 09
RSP: 0018:ffffc900066a7ee8 EFLAGS: 00000293
RAX: 03e83aa15d889900 RBX: ffffc900066a7ef0 RCX: 03e83aa15d889900
RDX: 0000000000000000 RSI: 00000000000000ca RDI: ffffc900066a7f58
RBP: ffffc900066a7f48 R08: ffffffff8fa1e8f7 R09: 1ffffffff1f43d1e
R10: dffffc0000000000 R11: fffffbfff1f43d1f R12: 00000000000000ca
R13: 00000000000000ca R14: ffffc900066a7f58 R15: ffff88810a5fd640
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7ff09d98e9a9
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:00007ff09e8860e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: ffffffffffffffda RBX: 00007ff09dbb5fa8 RCX: 00007ff09d98e9a9
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007ff09dbb5fa8
RBP: 00007ff09dbb5fa0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007ff09dbb5fac
R13: 0000000000000000 R14: 00007ffd82399830 R15: 00007ffd82399918
 </TASK>
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 6176 Comm: syz.0.130 Not tainted 6.16.0-rc6-syzkaller-00411-g95993dc3039e-dirty #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
RIP: 0010:asm_sysvec_irq_work+0x0/0x20
Code: 16 64 6e 0a e9 41 05 00 00 90 f3 0f 1e fa 0f 1f 00 fc 6a ff e8 f1 03 00 00 48 89 c4 48 89 e7 e8 f6 42 6e 0a e9 21 05 00 00 90 <f3> 0f 1e fa 0f 1f 00 fc 6a ff e8 d1 03 00 00 48 89 c4 48 89 e7 e8
RSP: 0018:ffffc900001e05f8 EFLAGS: 00000046
RAX: 1ffffffff1d36927 RBX: ffffffff8e9b4938 RCX: ffff88810a5fd640
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc900001e0770 R08: ffffffff8fa1e8f7 R09: 1ffffffff1f43d1e
R10: dffffc0000000000 R11: fffffbfff1f43d1f R12: dffffc0000000000
R13: 0000000000000001 R14: 0000000000000200 R15: ffffffff8e9b48e0
FS:  00007ff09e8866c0(0000) GS:ffff8881a3c1f000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00002000000018c0 CR3: 0000000029954000 CR4: 00000000000006f0
Call Trace:
 <IRQ>
RIP: 0010:console_flush_all+0x7f7/0xc40
Code: 48 21 c3 0f 85 e9 01 00 00 e8 75 e7 1e 00 48 8b 5c 24 20 4d 85 f6 75 07 e8 66 e7 1e 00 eb 06 e8 5f e7 1e 00 fb 48 8b 44 24 28 <42> 80 3c 20 00 74 08 48 89 df e8 8a 0a 82 00 48 8b 1b 48 8b 44 24
RSP: 0018:ffffc900001e0620 EFLAGS: 00000246
 console_unlock+0xc4/0x270
 vprintk_emit+0x5b7/0x7a0
 _printk+0xcf/0x120
 clocksource_watchdog+0xdca/0x11c0
 call_timer_fn+0x17e/0x5f0
 __run_timer_base+0x61a/0x860
 run_timer_softirq+0x67/0x180
 handle_softirqs+0x286/0x870
 __irq_exit_rcu+0xca/0x1f0
 irq_exit_rcu+0x9/0x30
 sysvec_irq_work+0xa3/0xc0
 </IRQ>
 <TASK>
 asm_sysvec_irq_work+0x1a/0x20
RIP: 0010:preempt_schedule_irq+0xb0/0x150
Code: 24 20 f6 44 24 21 02 74 0c 90 0f 0b 48 f7 03 08 00 00 00 74 64 bf 01 00 00 00 e8 8b 2d 21 f6 e8 c6 00 58 f6 fb bf 01 00 00 00 <e8> 1b ab ff ff 48 c7 44 24 40 00 00 00 00 9c 8f 44 24 40 8b 44 24
RSP: 0018:ffffc900066a7d80 EFLAGS: 00000282
RAX: 03e83aa15d889900 RBX: 0000000000000000 RCX: 03e83aa15d889900
RDX: 0000000000000000 RSI: ffffffff8d99883e RDI: 0000000000000001
RBP: ffffc900066a7e20 R08: ffffffff8fa1e8f7 R09: 1ffffffff1f43d1e
R10: dffffc0000000000 R11: fffffbfff1f43d1f R12: 0000000000000000
R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff92000cd4fb0
 irqentry_exit+0x6f/0x90
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:x64_sys_call+0x496/0x21c0
Code: 00 81 fe 58 01 00 00 0f 8f 61 1b 00 00 81 fe 57 01 00 00 0f 84 3b c5 34 00 81 fe 58 01 00 00 0f 84 2f c5 34 00 e9 f1 1c 00 00 <81> fe bd 00 00 00 0f 8e 90 03 00 00 81 fe c4 00 00 00 0f 8e e2 09
RSP: 0018:ffffc900066a7ee8 EFLAGS: 00000293
RAX: 03e83aa15d889900 RBX: ffffc900066a7ef0 RCX: 03e83aa15d889900
RDX: 0000000000000000 RSI: 00000000000000ca RDI: ffffc900066a7f58
RBP: ffffc900066a7f48 R08: ffffffff8fa1e8f7 R09: 1ffffffff1f43d1e
R10: dffffc0000000000 R11: fffffbfff1f43d1f R12: 00000000000000ca
R13: 00000000000000ca R14: ffffc900066a7f58 R15: ffff88810a5fd640
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7ff09d98e9a9
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:00007ff09e8860e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: ffffffffffffffda RBX: 00007ff09dbb5fa8 RCX: 00007ff09d98e9a9
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007ff09dbb5fa8
RBP: 00007ff09dbb5fa0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007ff09dbb5fac
R13: 0000000000000000 R14: 00007ffd82399830 R15: 00007ffd82399918
 </TASK>
