rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	0-...!: (10500 ticks this GP) idle=3fb4/1/0x4000000000000000 softirq=19455/19455 fqs=0
rcu: 	(t=10500 jiffies g=11301 q=2335 ncpus=2)
rcu: rcu_preempt kthread timer wakeup didn't happen for 10499 jiffies! g11301 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402
rcu: 	Possible timer handling issue on cpu=0 timer-softirq=4474
rcu: rcu_preempt kthread starved for 10500 jiffies! g11301 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->cpu=0
rcu: 	Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior.
rcu: RCU grace-period kthread stack dump:
task:rcu_preempt     state:I stack:27128 pid:16    tgid:16    ppid:2      task_flags:0x208040 flags:0x00004000
Call Trace:
 <TASK>
 __schedule+0x16f5/0x4d00
 schedule+0x165/0x360
 schedule_timeout+0x12b/0x270
 rcu_gp_fqs_loop+0x301/0x1540
 rcu_gp_kthread+0x99/0x390
 kthread+0x711/0x8a0
 ret_from_fork+0x3fc/0x770
 ret_from_fork_asm+0x1a/0x30
 </TASK>
CPU: 0 UID: 0 PID: 7179 Comm: syz.1.572 Not tainted 6.16.0-rc6-syzkaller-00434-gcd7c97f4584a #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 ea 0a 82 00 48 8b 1b 48 8b 44 24
RSP: 0018:ffffc90000007620 EFLAGS: 00000246
RAX: 1ffffffff1d36927 RBX: ffffffff8e9b4938 RCX: ffff888029743980
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90000007770 R08: ffffffff8fa1e8f7 R09: 1ffffffff1f43d1e
R10: dffffc0000000000 R11: fffffbfff1f43d1f R12: dffffc0000000000
R13: 0000000000000001 R14: 0000000000000200 R15: ffffffff8e9b48e0
FS:  00007fab632b36c0(0000) GS:ffff8880b861f000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 0000000027292000 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: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 5b 22 21 f6 e8 96 f5 57 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:ffffc90002f6f3e0 EFLAGS: 00000282
RAX: 07ba77296cb07e00 RBX: 0000000000000000 RCX: 07ba77296cb07e00
RDX: 0000000000000006 RSI: ffffffff8d9986f9 RDI: 0000000000000001
RBP: ffffc90002f6f480 R08: ffffffff8fa1e8f7 R09: 1ffffffff1f43d1e
R10: dffffc0000000000 R11: fffffbfff1f43d1f R12: 0000000000000000
R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff920005ede7c
 irqentry_exit+0x6f/0x90
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:kobject_uevent+0x0/0x20
Code: 74 08 48 89 df e8 b0 10 be f6 48 8b 3b 5b e9 c7 18 b3 f6 0f 1f 80 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 <f3> 0f 1e fa 41 56 53 89 f3 49 89 fe e8 df ec 5a f6 4c 89 f7 89 de
RSP: 0018:ffffc90002f6f540 EFLAGS: 00000246
RAX: ffffffff85f6956d RBX: 1ffff110047ac157 RCX: ffff888029743980
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff888023d606e8
RBP: 0000000000000000 R08: ffffc90002f6f4c7 R09: 1ffff920005ede98
R10: dffffc0000000000 R11: fffff520005ede99 R12: 1ffff110047ac0e0
R13: ffff888023d60abc R14: ffff888023d606e8 R15: 0000000000000000
 device_add+0x557/0xb50
 netdev_register_kobject+0x156/0x2f0
 register_netdevice+0x126c/0x1ae0
 register_netdev+0x40/0x60
 vti6_init_net+0x238/0x370
 ops_init+0x35c/0x5c0
 setup_net+0x219/0x4b0
 copy_net_ns+0x31b/0x4d0
 create_new_namespaces+0x3f3/0x720
 copy_namespaces+0x438/0x4b0
 copy_process+0x1700/0x3b80
 kernel_clone+0x21e/0x870
 __x64_sys_clone+0x18b/0x1e0
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fab6238eb69
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:00007fab632b2fe8 EFLAGS: 00000206 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 00007fab625b6080 RCX: 00007fab6238eb69
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000040000400
RBP: 00007fab62411df1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fab625b6080 R15: 00007ffee1895098
 </TASK>
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 7179 Comm: syz.1.572 Not tainted 6.16.0-rc6-syzkaller-00434-gcd7c97f4584a #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:lock_is_held_type+0x123/0x190
Code: e8 62 16 00 00 b8 ff ff ff ff 65 0f c1 05 45 c3 31 07 83 f8 01 75 44 48 c7 04 24 00 00 00 00 9c 8f 04 24 f7 04 24 00 02 00 00 <75> 4c 41 f7 c4 00 02 00 00 74 01 fb 65 48 8b 05 f9 82 31 07 48 3b
RSP: 0018:ffffc90000006f78 EFLAGS: 00000046
RAX: 0000000000000001 RBX: 0000000000000001 RCX: 07ba77296cb07e00
RDX: ffff888029743980 RSI: ffffffff8db863da RDI: ffffffff8be29f80
RBP: 00000000ffffffff R08: 0000000000000000 R09: ffffffff81cb4e27
R10: ffffe8ff1467500c R11: fffff91fe28cea03 R12: 0000000000000046
R13: ffff888029743980 R14: ffffffff8e13f0a0 R15: 0000000000000006
FS:  00007fab632b36c0(0000) GS:ffff8880b861f000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 0000000027292000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 trace_call_bpf+0x1ad/0x850
 perf_trace_run_bpf_submit+0x78/0x170
 perf_trace_preemptirq_template+0x280/0x340
 trace_irq_disable+0xee/0x110
 irqentry_enter+0x3d/0x60
 sysvec_irq_work+0xe/0xc0
 asm_sysvec_irq_work+0x1a/0x20
RIP: 0010:info_print_prefix+0x0/0x310
Code: c3 cc cc cc cc cc 89 f9 80 e1 07 80 c1 03 38 c1 7c b8 e8 e3 ae 81 00 eb b1 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 <f3> 0f 1e fa 55 48 89 e5 41 57 41 56 41 55 41 54 53 48 83 e4 e0 48
RSP: 0018:ffffc900000072f8 EFLAGS: 00000287
RAX: ffffc90000007380 RBX: ffffffff99af5880 RCX: ffffc90000007380
RDX: 0000000000000001 RSI: 0000000000000000 RDI: ffffc90000007500
RBP: ffffc90000007430 R08: ffffc900000073af R09: 0000000000000000
R10: ffffc90000007380 R11: fffff52000000e76 R12: ffffc90000007380
R13: 0000000000000800 R14: 0000000000000000 R15: 0000000000000035
 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: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 5b 22 21 f6 e8 96 f5 57 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:ffffc90002f6f3e0 EFLAGS: 00000282
RAX: 07ba77296cb07e00 RBX: 0000000000000000 RCX: 07ba77296cb07e00
RDX: 0000000000000006 RSI: ffffffff8d9986f9 RDI: 0000000000000001
RBP: ffffc90002f6f480 R08: ffffffff8fa1e8f7 R09: 1ffffffff1f43d1e
R10: dffffc0000000000 R11: fffffbfff1f43d1f R12: 0000000000000000
R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff920005ede7c
 irqentry_exit+0x6f/0x90
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:kobject_uevent+0x0/0x20
Code: 74 08 48 89 df e8 b0 10 be f6 48 8b 3b 5b e9 c7 18 b3 f6 0f 1f 80 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 <f3> 0f 1e fa 41 56 53 89 f3 49 89 fe e8 df ec 5a f6 4c 89 f7 89 de
RSP: 0018:ffffc90002f6f540 EFLAGS: 00000246
RAX: ffffffff85f6956d RBX: 1ffff110047ac157 RCX: ffff888029743980
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff888023d606e8
RBP: 0000000000000000 R08: ffffc90002f6f4c7 R09: 1ffff920005ede98
R10: dffffc0000000000 R11: fffff520005ede99 R12: 1ffff110047ac0e0
R13: ffff888023d60abc R14: ffff888023d606e8 R15: 0000000000000000
 device_add+0x557/0xb50
 netdev_register_kobject+0x156/0x2f0
 register_netdevice+0x126c/0x1ae0
 register_netdev+0x40/0x60
 vti6_init_net+0x238/0x370
 ops_init+0x35c/0x5c0
 setup_net+0x219/0x4b0
 copy_net_ns+0x31b/0x4d0
 create_new_namespaces+0x3f3/0x720
 copy_namespaces+0x438/0x4b0
 copy_process+0x1700/0x3b80
 kernel_clone+0x21e/0x870
 __x64_sys_clone+0x18b/0x1e0
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fab6238eb69
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:00007fab632b2fe8 EFLAGS: 00000206 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 00007fab625b6080 RCX: 00007fab6238eb69
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000040000400
RBP: 00007fab62411df1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fab625b6080 R15: 00007ffee1895098
 </TASK>
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 7179 Comm: syz.1.572 Not tainted 6.16.0-rc6-syzkaller-00434-gcd7c97f4584a #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_write+0x39/0x50
Code: 74 2a 83 ff 30 74 25 eb 10 81 ff d0 00 00 00 74 1b 81 ff e0 00 00 00 74 13 c1 ef 04 81 c7 00 08 00 00 89 f9 89 f0 31 d2 0f 30 <66> 90 c3 cc cc cc cc cc f3 0f 1e fa 89 f6 31 d2 e9 e2 d0 86 03 66
RSP: 0018:ffffc90000006d08 EFLAGS: 00000046
RAX: 00000000000000f6 RBX: 0000000000000200 RCX: 000000000000083f
RDX: 0000000000000000 RSI: 00000000000000f6 RDI: 000000000000083f
RBP: ffffc90000006dd8 R08: ffffc90000006d67 R09: 1ffff92000000dac
R10: dffffc0000000000 R11: fffff52000000dad R12: ffff88804b03af01
R13: 0000000000000000 R14: 0000000000000000 R15: ffff88804b0314f0
FS:  00007fab632b36c0(0000) GS:ffff8880b861f000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 0000000027292000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 arch_irq_work_raise+0x6d/0x80
 __irq_work_queue_local+0x1d7/0x550
 irq_work_queue_on+0x122/0x230
 rcu_read_unlock_special+0x3ab/0x4c0
 __rcu_read_unlock+0x84/0xe0
 trace_call_bpf+0x5ae/0x850
 perf_trace_run_bpf_submit+0x78/0x170
 perf_trace_preemptirq_template+0x280/0x340
 trace_irq_disable+0xee/0x110
 irqentry_enter+0x3d/0x60
 sysvec_apic_timer_interrupt+0xe/0xc0
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:_prb_read_valid+0x16e/0xa90
Code: 80 00 49 8b 07 48 89 44 24 30 48 8b 84 24 b0 00 00 00 42 80 3c 20 00 74 0d 48 8b bc 24 a8 00 00 00 e8 b6 fa 80 00 4d 8b 75 10 <48> 8b 44 24 78 42 0f b6 04 20 84 c0 0f 85 fb 06 00 00 45 8b 6d 00
RSP: 0018:ffffc90000007280 EFLAGS: 00000246
RAX: 1ffffffff1c0ae16 RBX: ffffc90000007580 RCX: 1ffffffff1c0ae15
RDX: 1ffff92000000e82 RSI: ffffc90000007410 RDI: ffffffff8e0570a0
RBP: ffffc90000007400 R08: ffffc90000007557 R09: 0000000000000000
R10: ffffc90000007500 R11: fffff52000000eab R12: dffffc0000000000
R13: ffffffff8e0570a0 R14: ffffffff8e057120 R15: ffffc90000007410
 prb_read_valid+0x3c/0x60
 printk_get_next_message+0x15c/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: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 5b 22 21 f6 e8 96 f5 57 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:ffffc90002f6f3e0 EFLAGS: 00000282
RAX: 07ba77296cb07e00 RBX: 0000000000000000 RCX: 07ba77296cb07e00
RDX: 0000000000000006 RSI: ffffffff8d9986f9 RDI: 0000000000000001
RBP: ffffc90002f6f480 R08: ffffffff8fa1e8f7 R09: 1ffffffff1f43d1e
R10: dffffc0000000000 R11: fffffbfff1f43d1f R12: 0000000000000000
R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff920005ede7c
 irqentry_exit+0x6f/0x90
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:kobject_uevent+0x0/0x20
Code: 74 08 48 89 df e8 b0 10 be f6 48 8b 3b 5b e9 c7 18 b3 f6 0f 1f 80 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 <f3> 0f 1e fa 41 56 53 89 f3 49 89 fe e8 df ec 5a f6 4c 89 f7 89 de
RSP: 0018:ffffc90002f6f540 EFLAGS: 00000246
RAX: ffffffff85f6956d RBX: 1ffff110047ac157 RCX: ffff888029743980
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff888023d606e8
RBP: 0000000000000000 R08: ffffc90002f6f4c7 R09: 1ffff920005ede98
R10: dffffc0000000000 R11: fffff520005ede99 R12: 1ffff110047ac0e0
R13: ffff888023d60abc R14: ffff888023d606e8 R15: 0000000000000000
 device_add+0x557/0xb50
 netdev_register_kobject+0x156/0x2f0
 register_netdevice+0x126c/0x1ae0
 register_netdev+0x40/0x60
 vti6_init_net+0x238/0x370
 ops_init+0x35c/0x5c0
 setup_net+0x219/0x4b0
 copy_net_ns+0x31b/0x4d0
 create_new_namespaces+0x3f3/0x720
 copy_namespaces+0x438/0x4b0
 copy_process+0x1700/0x3b80
 kernel_clone+0x21e/0x870
 __x64_sys_clone+0x18b/0x1e0
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fab6238eb69
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:00007fab632b2fe8 EFLAGS: 00000206 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 00007fab625b6080 RCX: 00007fab6238eb69
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000040000400
RBP: 00007fab62411df1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fab625b6080 R15: 00007ffee1895098
 </TASK>
