rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	0-....: (1 GPs behind) idle=d6ec/1/0x4000000000000000 softirq=19852/19858 fqs=4760
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:   956355          0            0
rcu: 	cputime:    24141      28348           99   ==> 52490(ms)
rcu: 	(t=10500 jiffies g=11833 q=2797 ncpus=2)
CPU: 0 UID: 0 PID: 6844 Comm: syz.0.311 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+0x850/0xc40
Code: 03 00 00 48 8b 44 24 40 42 80 3c 20 00 4c 8b 74 24 48 74 08 4c 89 f7 e8 4e 0a 82 00 4d 8b 36 48 89 df 4c 89 f6 e8 60 e9 1e 00 <4c> 39 f3 76 30 e8 f6 e6 1e 00 48 8b 44 24 40 42 80 3c 20 00 4c 8b
RSP: 0018:ffffc90000007620 EFLAGS: 00000246
RAX: ffffffff81a141f0 RBX: 0000000000000a55 RCX: ffff888108690000
RDX: 0000000000000100 RSI: 0000000000000a55 RDI: 0000000000000a55
RBP: ffffc90000007770 R08: ffffffff8fa1e9f7 R09: 1ffffffff1f43d3e
R10: dffffc0000000000 R11: fffffbfff1f43d3f R12: dffffc0000000000
R13: 0000000000000001 R14: 0000000000000a55 R15: ffffffff8ec817a0
FS:  00007fe4ab8106c0(0000) GS:ffff8880b861f000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c2c8af7 CR3: 00000000280be000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
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:_raw_read_unlock_irqrestore+0xa8/0x110
Code: 74 05 e8 2b 89 56 f6 48 c7 44 24 20 00 00 00 00 9c 8f 44 24 20 f6 44 24 21 02 75 4f f7 c3 00 02 00 00 74 01 fb bf 01 00 00 00 <e8> 73 b7 1f f6 65 8b 05 1c e4 2e 07 85 c0 74 40 48 c7 04 24 0e 36
RSP: 0018:ffffc9000881fd00 EFLAGS: 00000206
RAX: db6b93b35acd4000 RBX: 0000000000000a06 RCX: db6b93b35acd4000
RDX: 0000000000000000 RSI: ffffffff8d998940 RDI: 0000000000000001
RBP: ffffc9000881fd98 R08: ffffffff8fa1e9f7 R09: 1ffffffff1f43d3e
R10: dffffc0000000000 R11: fffffbfff1f43d3f R12: dffffc0000000000
R13: dffffc0000000000 R14: ffffffff8f581180 R15: 1ffff92001103fa0
 netlink_create+0xfa/0x590
 __sock_create+0x4b3/0x9f0
 __sys_socket+0xd7/0x1b0
 __x64_sys_socket+0x7a/0x90
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fe4aa98e9a9
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:00007fe4ab810038 EFLAGS: 00000246 ORIG_RAX: 0000000000000029
RAX: ffffffffffffffda RBX: 00007fe4aabb6080 RCX: 00007fe4aa98e9a9
RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000010
RBP: 00007fe4aaa10d69 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fe4aabb6080 R15: 00007ffdd3bdfda8
 </TASK>
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 6844 Comm: syz.0.311 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:trace_hardirqs_on+0xb/0x40
Code: 00 ff ff ff 90 0f 0b 90 e9 77 ff ff ff 66 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 65 8b 05 05 65 d9 10 <85> c0 74 14 48 8b 3c 24 e8 c8 fe ff ff 65 c7 05 ed 64 d9 10 00 00
RSP: 0018:ffffc90000006f98 EFLAGS: 00000006
RAX: 0000000000000001 RBX: 0000000000000000 RCX: db6b93b35acd4000
RDX: 0000000000010100 RSI: 0000000000000000 RDI: ffffc90000006fa8
RBP: 0000000000000000 R08: ffffffff8fa1e9f7 R09: 1ffffffff1f43d3e
R10: dffffc0000000000 R11: fffffbfff1f43d3f R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
FS:  00007fe4ab8106c0(0000) GS:ffff8880b861f000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c2c8af7 CR3: 00000000280be000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 irqentry_exit+0x74/0x90
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:format_decode+0x6f/0xe30
Code: c6 83 f8 03 0f 84 65 06 00 00 45 31 f6 48 b9 00 00 00 00 00 fc ff df 4d 8d 24 2e 4c 89 e0 48 c1 e8 03 0f b6 04 08 84 c0 75 28 <42> 0f b6 5c 35 00 48 89 df 48 c7 c6 50 ee 88 8f e8 bc 67 55 f6 85
RSP: 0018:ffffc90000007050 EFLAGS: 00000293
RAX: 0000000000000006 RBX: 0000000000000000 RCX: 000000008b8b8901
RDX: ffffffff8b6ac65f RSI: ffffffff8f88ee30 RDI: 0000000000000000
RBP: ffffffff8b8b8981 R08: ffff888108690000 R09: 0000000000000002
R10: 0000000000000003 R11: 0000000000000100 R12: ffffffff8b8b8981
R13: ffffc900000070f8 R14: 0000000000000000 R15: ffffffff8b8b8981
 vsnprintf+0x102/0xf00
 sprintf+0xd9/0x120
 info_print_prefix+0x1f3/0x310
 record_print_text+0x154/0x430
 printk_get_next_message+0x26d/0x7b0
 console_flush_all+0x4ca/0xc40
 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:_raw_read_unlock_irqrestore+0xa8/0x110
Code: 74 05 e8 2b 89 56 f6 48 c7 44 24 20 00 00 00 00 9c 8f 44 24 20 f6 44 24 21 02 75 4f f7 c3 00 02 00 00 74 01 fb bf 01 00 00 00 <e8> 73 b7 1f f6 65 8b 05 1c e4 2e 07 85 c0 74 40 48 c7 04 24 0e 36
RSP: 0018:ffffc9000881fd00 EFLAGS: 00000206
RAX: db6b93b35acd4000 RBX: 0000000000000a06 RCX: db6b93b35acd4000
RDX: 0000000000000000 RSI: ffffffff8d998940 RDI: 0000000000000001
RBP: ffffc9000881fd98 R08: ffffffff8fa1e9f7 R09: 1ffffffff1f43d3e
R10: dffffc0000000000 R11: fffffbfff1f43d3f R12: dffffc0000000000
R13: dffffc0000000000 R14: ffffffff8f581180 R15: 1ffff92001103fa0
 netlink_create+0xfa/0x590
 __sock_create+0x4b3/0x9f0
 __sys_socket+0xd7/0x1b0
 __x64_sys_socket+0x7a/0x90
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fe4aa98e9a9
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:00007fe4ab810038 EFLAGS: 00000246 ORIG_RAX: 0000000000000029
RAX: ffffffffffffffda RBX: 00007fe4aabb6080 RCX: 00007fe4aa98e9a9
RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000010
RBP: 00007fe4aaa10d69 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fe4aabb6080 R15: 00007ffdd3bdfda8
 </TASK>
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 6844 Comm: syz.0.311 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:native_apic_msr_eoi+0xf/0x20
Code: f8 c3 cc cc cc cc cc 0f 1f 40 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa b9 0b 08 00 00 31 c0 31 d2 0f 30 <e9> 8c 24 00 0a cc 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90
RSP: 0018:ffffc90000007530 EFLAGS: 00000046
RAX: 0000000000000000 RBX: ffffc90000007578 RCX: 000000000000080b
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000002
RBP: 0000000000000000 R08: ffff88804b023b0f R09: 1ffff11009604761
R10: dffffc0000000000 R11: ffffed1009604762 R12: dffffc0000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
FS:  00007fe4ab8106c0(0000) GS:ffff8880b861f000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c2c8af7 CR3: 00000000280be000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 __sysvec_apic_timer_interrupt+0x45/0x410
 sysvec_apic_timer_interrupt+0x52/0xc0
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:console_flush_all+0x7fc/0xc40
Code: 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 38 42 0f b6 04
RSP: 0018:ffffc90000007620 EFLAGS: 00000246
RAX: 1ffffffff1d36927 RBX: ffffffff8e9b4938 RCX: ffff888108690000
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90000007770 R08: ffffffff8fa1e9f7 R09: 1ffffffff1f43d3e
R10: dffffc0000000000 R11: fffffbfff1f43d3f 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:_raw_read_unlock_irqrestore+0xa8/0x110
Code: 74 05 e8 2b 89 56 f6 48 c7 44 24 20 00 00 00 00 9c 8f 44 24 20 f6 44 24 21 02 75 4f f7 c3 00 02 00 00 74 01 fb bf 01 00 00 00 <e8> 73 b7 1f f6 65 8b 05 1c e4 2e 07 85 c0 74 40 48 c7 04 24 0e 36
RSP: 0018:ffffc9000881fd00 EFLAGS: 00000206
RAX: db6b93b35acd4000 RBX: 0000000000000a06 RCX: db6b93b35acd4000
RDX: 0000000000000000 RSI: ffffffff8d998940 RDI: 0000000000000001
RBP: ffffc9000881fd98 R08: ffffffff8fa1e9f7 R09: 1ffffffff1f43d3e
R10: dffffc0000000000 R11: fffffbfff1f43d3f R12: dffffc0000000000
R13: dffffc0000000000 R14: ffffffff8f581180 R15: 1ffff92001103fa0
 netlink_create+0xfa/0x590
 __sock_create+0x4b3/0x9f0
 __sys_socket+0xd7/0x1b0
 __x64_sys_socket+0x7a/0x90
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fe4aa98e9a9
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:00007fe4ab810038 EFLAGS: 00000246 ORIG_RAX: 0000000000000029
RAX: ffffffffffffffda RBX: 00007fe4aabb6080 RCX: 00007fe4aa98e9a9
RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000010
RBP: 00007fe4aaa10d69 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fe4aabb6080 R15: 00007ffdd3bdfda8
 </TASK>
