rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	0-....: (10492 ticks this GP) idle=b47c/1/0x4000000000000000 softirq=60631/60632 fqs=5163
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:  1025393          1            0
rcu: 	cputime:    23312      29177           89   ==> 52500(ms)
rcu: 	(t=10501 jiffies g=44905 q=4780 ncpus=2)
CPU: 0 UID: 0 PID: 15160 Comm: syz.5.2612 Not tainted syzkaller #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:ip_protocol_deliver_rcu+0x377/0x440
Code: 8c e8 9d 7b 9c 01 48 8b 1c 24 48 81 c3 c0 04 00 00 48 89 d8 48 c1 e8 03 42 80 3c 30 00 74 08 48 89 df e8 ac 89 21 f8 48 8b 03 <65> 48 ff 40 18 48 83 c4 08 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc
RSP: 0018:ffffc900000072a0 EFLAGS: 00000246
RAX: ffffffff933f5898 RBX: ffffffff9a980b00 RCX: 0000000000000101
RDX: 0000000000000100 RSI: ffffffff8ce9ea60 RDI: ffffffff8c2a8d80
RBP: 0000000000000001 R08: ffff8881109a8083 R09: 1ffff11022135010
R10: dffffc0000000000 R11: ffffed1022135011 R12: 0000000000000000
R13: ffffffff8e664be0 R14: dffffc0000000000 R15: 1ffff1102278d92d
FS:  00007fb65f3726c0(0000) GS:ffff88818dc51000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fa2b9e98a84 CR3: 000000010f95a000 CR4: 00000000000006f0
DR0: 0000200000000300 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000200000000300 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 ip_local_deliver_finish+0x3bb/0x6f0
 NF_HOOK+0x336/0x3c0
 ip_sublist_rcv_finish+0x1f0/0x240
 ip_sublist_rcv+0x767/0xa70
 ip_list_rcv+0x3ec/0x440
 __netif_receive_skb_list_core+0x804/0x830
 netif_receive_skb_list_internal+0x995/0xcf0
 gro_receive_skb+0x5fb/0xc30
 e1000_clean_rx_irq+0x9da/0x1240
 e1000_clean+0xc9c/0x2bf0
 __napi_poll+0xaa/0x330
 net_rx_action+0x61d/0xf50
 handle_softirqs+0x225/0x840
 __irq_exit_rcu+0xca/0x220
 irq_exit_rcu+0x9/0x30
 sysvec_apic_timer_interrupt+0xa6/0xc0
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:finish_task_switch+0x417/0xbc0
Code: 03 00 00 41 c7 84 24 20 0e 00 00 00 00 00 00 0f 1f 44 00 00 49 83 c4 48 4c 89 e7 e8 13 7c 1c 0a e8 4e ac 39 00 fb 4c 8b 65 c8 <49> 8d bc 24 f8 16 00 00 48 89 f8 48 c1 e8 03 42 0f b6 04 30 84 c0
RSP: 0018:ffffc9000883f820 EFLAGS: 00000246
RAX: 0000000000000001 RBX: ffff88812103bda0 RCX: 0000000080000002
RDX: 0000000000000000 RSI: ffffffff8c2a8d60 RDI: ffffffff8194c0d2
RBP: ffffc9000883f870 R08: ffffffff9031b4f7 R09: 1ffffffff206369e
R10: dffffc0000000000 R11: fffffbfff206369f R12: ffff888105f9bb80
R13: ffff888105f9bb80 R14: dffffc0000000000 R15: 1ffff110242077b4
 __schedule+0x17e1/0x56c0
 preempt_schedule_common+0x82/0xd0
 preempt_schedule_thunk+0x16/0x40
 _raw_spin_unlock_irqrestore+0x74/0x80
 __rcu_report_exp_rnp+0x2d1/0x3d0
 __rcu_read_unlock+0x83/0xe0
 futex_hash+0x1ca/0x2b0
 futex_wake+0x1ee/0x5f0
 do_futex+0x458/0x4e0
 __se_sys_futex+0x3a8/0x450
 do_syscall_64+0x174/0x580
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fb65e59ce59
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:00007fb65f3720e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: ffffffffffffffda RBX: 00007fb65e816098 RCX: 00007fb65e59ce59
RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007fb65e81609c
RBP: 00007fb65e816090 R08: 3fffffffffffffff R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fb65e816128 R14: 00007ffc2bdfcb00 R15: 00007ffc2bdfcbe8
 </TASK>
sched: DL replenish lagged too much
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 15160 Comm: syz.5.2612 Not tainted syzkaller #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:pvclock_clocksource_read_nowd+0xf/0xf0
Code: cc cc cc cc cc cc cc cc cc cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1f 40 d6 55 41 57 41 56 41 54 53 50 8b 2f <eb> 2c 89 cb 80 f9 40 73 53 89 d9 48 d3 e0 83 e5 fe 4c 89 34 24 48
RSP: 0018:ffffc90000006cf8 EFLAGS: 00000002
RAX: ffffffff8176106b RBX: ffffffff8e7b9380 RCX: ffff888105f9bb80
RDX: 0000000000010100 RSI: 0000000000000000 RDI: ffffffff93433000
RBP: 0000000000000008 R08: 0000000000000001 R09: 0000000000000000
R10: 000000000000000b R11: ffffffff81761060 R12: 00000065240002ed
R13: dffffc0000000000 R14: 0000000000000001 R15: dffffc0000000000
FS:  00007fb65f3726c0(0000) GS:ffff88818dc51000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fa2b9e98a84 CR3: 000000010f95a000 CR4: 00000000000006f0
DR0: 0000200000000300 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000200000000300 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 kvm_clock_get_cycles+0x1f/0x60
 ktime_get+0x1bd/0x220
 perf_swevent_hrtimer+0x4cb/0x650
 __hrtimer_run_queues+0x371/0xa10
 hrtimer_interrupt+0x448/0x910
 __sysvec_apic_timer_interrupt+0x102/0x430
 sysvec_apic_timer_interrupt+0x52/0xc0
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:ip_protocol_deliver_rcu+0x377/0x440
Code: 8c e8 9d 7b 9c 01 48 8b 1c 24 48 81 c3 c0 04 00 00 48 89 d8 48 c1 e8 03 42 80 3c 30 00 74 08 48 89 df e8 ac 89 21 f8 48 8b 03 <65> 48 ff 40 18 48 83 c4 08 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc
RSP: 0018:ffffc900000072a0 EFLAGS: 00000246
RAX: ffffffff933f5898 RBX: ffffffff9a980b00 RCX: 0000000000000101
RDX: 0000000000000100 RSI: ffffffff8ce9ea60 RDI: ffffffff8c2a8d80
RBP: 0000000000000001 R08: ffff8881109a8083 R09: 1ffff11022135010
R10: dffffc0000000000 R11: ffffed1022135011 R12: 0000000000000000
R13: ffffffff8e664be0 R14: dffffc0000000000 R15: 1ffff1102278d92d
 ip_local_deliver_finish+0x3bb/0x6f0
 NF_HOOK+0x336/0x3c0
 ip_sublist_rcv_finish+0x1f0/0x240
 ip_sublist_rcv+0x767/0xa70
 ip_list_rcv+0x3ec/0x440
 __netif_receive_skb_list_core+0x804/0x830
 netif_receive_skb_list_internal+0x995/0xcf0
 gro_receive_skb+0x5fb/0xc30
 e1000_clean_rx_irq+0x9da/0x1240
 e1000_clean+0xc9c/0x2bf0
 __napi_poll+0xaa/0x330
 net_rx_action+0x61d/0xf50
 handle_softirqs+0x225/0x840
 __irq_exit_rcu+0xca/0x220
 irq_exit_rcu+0x9/0x30
 sysvec_apic_timer_interrupt+0xa6/0xc0
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:finish_task_switch+0x417/0xbc0
Code: 03 00 00 41 c7 84 24 20 0e 00 00 00 00 00 00 0f 1f 44 00 00 49 83 c4 48 4c 89 e7 e8 13 7c 1c 0a e8 4e ac 39 00 fb 4c 8b 65 c8 <49> 8d bc 24 f8 16 00 00 48 89 f8 48 c1 e8 03 42 0f b6 04 30 84 c0
RSP: 0018:ffffc9000883f820 EFLAGS: 00000246
RAX: 0000000000000001 RBX: ffff88812103bda0 RCX: 0000000080000002
RDX: 0000000000000000 RSI: ffffffff8c2a8d60 RDI: ffffffff8194c0d2
RBP: ffffc9000883f870 R08: ffffffff9031b4f7 R09: 1ffffffff206369e
R10: dffffc0000000000 R11: fffffbfff206369f R12: ffff888105f9bb80
R13: ffff888105f9bb80 R14: dffffc0000000000 R15: 1ffff110242077b4
 __schedule+0x17e1/0x56c0
 preempt_schedule_common+0x82/0xd0
 preempt_schedule_thunk+0x16/0x40
 _raw_spin_unlock_irqrestore+0x74/0x80
 __rcu_report_exp_rnp+0x2d1/0x3d0
 __rcu_read_unlock+0x83/0xe0
 futex_hash+0x1ca/0x2b0
 futex_wake+0x1ee/0x5f0
 do_futex+0x458/0x4e0
 __se_sys_futex+0x3a8/0x450
 do_syscall_64+0x174/0x580
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fb65e59ce59
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:00007fb65f3720e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: ffffffffffffffda RBX: 00007fb65e816098 RCX: 00007fb65e59ce59
RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007fb65e81609c
RBP: 00007fb65e816090 R08: 3fffffffffffffff R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fb65e816128 R14: 00007ffc2bdfcb00 R15: 00007ffc2bdfcbe8
 </TASK>
