clocksource: Long readout interval, skipping watchdog check: cs_nsec: 77099054067 wd_nsec: 77099053580
rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	1-....: (1 GPs behind) idle=e21c/1/0x4000000000000000 softirq=30771/30772 fqs=4819
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:  1106011          0            0
rcu: 	cputime:    25782      26683           88   ==> 52470(ms)
rcu: 	(t=10500 jiffies g=25297 q=2206 ncpus=2)
CPU: 1 UID: 0 PID: 10118 Comm: syz.2.1326 Not tainted 6.16.0-rc6-syzkaller-00411-g95993dc3039e #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_unlock+0x155/0x1a0
Code: 00 4d 85 ff 75 16 e8 fa f7 1e 00 eb 15 e8 f3 f7 1e 00 e8 1e 58 cd 09 4d 85 ff 74 ea e8 e4 f7 1e 00 fb 48 c7 04 24 0e 36 e0 45 <4a> c7 04 33 00 00 00 00 66 42 c7 44 33 09 00 00 42 c6 44 33 0b 00
RSP: 0018:ffffc900001e06c0 EFLAGS: 00000246
RAX: ffffffff81a1310c RBX: 1ffff9200003c0d8 RCX: ffff888029793980
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc900001e0770 R08: ffffffff8fa1e8f7 R09: 1ffffffff1f43d1e
R10: dffffc0000000000 R11: fffffbfff1f43d1f R12: 0000000000000000
R13: dffffc0000000000 R14: dffffc0000000000 R15: 0000000000000200
FS:  00007f7f4ddd56c0(0000) GS:ffff8881a3c1f000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 000000003b126000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 console_unlock+0xe7/0x270
 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:lock_acquire+0x175/0x360
Code: 00 00 00 00 9c 8f 44 24 30 f7 44 24 30 00 02 00 00 0f 85 cd 00 00 00 f7 44 24 08 00 02 00 00 74 01 fb 65 48 8b 05 9b d3 01 11 <48> 3b 44 24 58 0f 85 f2 00 00 00 48 83 c4 60 5b 41 5c 41 5d 41 5e
RSP: 0018:ffffc90002a1fb30 EFLAGS: 00000206
RAX: f83051997632a100 RBX: 0000000000000000 RCX: f83051997632a100
RDX: 0000000000000000 RSI: ffffffff8db86553 RDI: ffffffff8be29f40
RBP: ffffffff81b4496c R08: 0000000000000000 R09: ffffffff81b4496c
R10: dffffc0000000000 R11: ffffed1003a56811 R12: 0000000000000000
R13: ffff88801d2b40a0 R14: 0000000000000001 R15: 0000000000000246
 _raw_spin_lock+0x2e/0x40
 futex_wake+0x1cc/0x500
 do_futex+0x395/0x420
 __se_sys_futex+0x36f/0x400
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f7f4cf8e9a9
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:00007f7f4ddd50e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: ffffffffffffffda RBX: 00007f7f4d1b5fa8 RCX: 00007f7f4cf8e9a9
RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007f7f4d1b5fac
RBP: 00007f7f4d1b5fa0 R08: 7fffffffffffffff R09: 0000000000000000
R10: 0000000000000004 R11: 0000000000000246 R12: 00007f7f4d1b5fac
R13: 0000000000000000 R14: 00007ffeba354e60 R15: 00007ffeba354f48
 </TASK>
sched: DL replenish lagged too much
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 10118 Comm: syz.2.1326 Not tainted 6.16.0-rc6-syzkaller-00411-g95993dc3039e #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 db 86 03 66
RSP: 0018:ffffc900001e0178 EFLAGS: 00000046
RAX: 000000000000003e RBX: ffff888136623900 RCX: 0000000000000838
RDX: 0000000000000000 RSI: 000000000000003e RDI: 0000000000000838
RBP: 0000000000000000 R08: 0000000000000000 R09: ffffffff81aec9fe
R10: 0000000000000003 R11: ffffffff81702490 R12: 0000000010005590
R13: dffffc0000000000 R14: 000000000000003e R15: 0000000000000020
FS:  00007f7f4ddd56c0(0000) GS:ffff8881a3c1f000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 000000003b126000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 lapic_next_event+0x11/0x20
 clockevents_program_event+0x1cf/0x360
 hrtimer_interrupt+0x620/0xaa0
 __sysvec_apic_timer_interrupt+0x10b/0x410
 sysvec_apic_timer_interrupt+0x52/0xc0
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:rcu_read_unlock_special+0x87/0x4c0
Code: f1 f1 f1 00 f2 f2 f2 4a 89 04 2b 66 42 c7 44 2b 09 f3 f3 42 c6 44 2b 0b f3 65 44 8b 35 62 2c f8 10 41 f7 c6 00 00 f0 00 74 49 <48> c7 44 24 40 0e 36 e0 45 4a c7 04 2b 00 00 00 00 66 42 c7 44 2b
RSP: 0018:ffffc900001e03e0 EFLAGS: 00000206
RAX: f83051997632a100 RBX: 1ffff9200003c084 RCX: f83051997632a100
RDX: 0000000000000002 RSI: ffffffff8d998836 RDI: ffffffff8be29f40
RBP: ffffc900001e04d8 R08: ffffffff8fa1e8f7 R09: 1ffffffff1f43d1e
R10: dffffc0000000000 R11: fffffbfff1f43d1f R12: ffffffff8e144400
R13: dffffc0000000000 R14: 0000000000000246 R15: 0000000000000002
 __rcu_read_unlock+0x84/0xe0
 unwind_next_frame+0x19ae/0x2390
 arch_stack_walk+0x11c/0x150
 stack_trace_save+0x9c/0xe0
 kasan_save_track+0x3e/0x80
 __kasan_slab_alloc+0x6c/0x80
 kmem_cache_alloc_node_noprof+0x1bb/0x3c0
 __alloc_skb+0x112/0x2d0
 ndisc_alloc_skb+0x9f/0x480
 ndisc_send_rs+0x2b5/0x630
 addrconf_rs_timer+0x369/0x670
 call_timer_fn+0x17e/0x5f0
 __run_timer_base+0x61a/0x860
 run_timer_softirq+0xb7/0x180
 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:lock_acquire+0x175/0x360
Code: 00 00 00 00 9c 8f 44 24 30 f7 44 24 30 00 02 00 00 0f 85 cd 00 00 00 f7 44 24 08 00 02 00 00 74 01 fb 65 48 8b 05 9b d3 01 11 <48> 3b 44 24 58 0f 85 f2 00 00 00 48 83 c4 60 5b 41 5c 41 5d 41 5e
RSP: 0018:ffffc90002a1fb30 EFLAGS: 00000206
RAX: f83051997632a100 RBX: 0000000000000000 RCX: f83051997632a100
RDX: 0000000000000000 RSI: ffffffff8db86553 RDI: ffffffff8be29f40
RBP: ffffffff81b4496c R08: 0000000000000000 R09: ffffffff81b4496c
R10: dffffc0000000000 R11: ffffed1003a56811 R12: 0000000000000000
R13: ffff88801d2b40a0 R14: 0000000000000001 R15: 0000000000000246
 _raw_spin_lock+0x2e/0x40
 futex_wake+0x1cc/0x500
 do_futex+0x395/0x420
 __se_sys_futex+0x36f/0x400
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f7f4cf8e9a9
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:00007f7f4ddd50e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: ffffffffffffffda RBX: 00007f7f4d1b5fa8 RCX: 00007f7f4cf8e9a9
RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007f7f4d1b5fac
RBP: 00007f7f4d1b5fa0 R08: 7fffffffffffffff R09: 0000000000000000
R10: 0000000000000004 R11: 0000000000000246 R12: 00007f7f4d1b5fac
R13: 0000000000000000 R14: 00007ffeba354e60 R15: 00007ffeba354f48
 </TASK>
