clocksource: Long readout interval, skipping watchdog check: cs_nsec: 33005436923 wd_nsec: 33005435302
rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	0-...!: (10499 ticks this GP) idle=a7d4/1/0x4000000000000000 softirq=14774/14774 fqs=4
rcu: 	(t=10500 jiffies g=8089 q=1053 ncpus=2)
rcu: rcu_preempt kthread starved for 10490 jiffies! g8089 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1
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:R  running task     stack:27160 pid:16    tgid:16    ppid:2      task_flags:0x208040 flags:0x00004000
Call Trace:
 <TASK>
 __schedule+0x1798/0x4cc0
 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>
rcu: Stack dump where RCU GP kthread last ran:
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 6057 Comm: syz.2.46 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:kasan_check_range+0xd/0x2c0
Code: 0f 0b 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 66 0f 1f 00 55 41 57 41 56 41 55 41 54 <53> b0 01 48 85 f6 0f 84 ba 01 00 00 4c 8d 04 37 49 39 f8 0f 82 82
RSP: 0018:ffffc900040cf7d0 EFLAGS: 00000246
RAX: 0000000000000001 RBX: ffff888110e36448 RCX: ffffffff8b7bde5c
RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff888110e36448
RBP: ffffc900040cf8f8 R08: ffff888110e3644b R09: 1ffff110221c6c89
R10: dffffc0000000000 R11: ffffed10221c6c8a R12: 1ffff92000819f08
R13: 0000000000000001 R14: ffffc900040cf860 R15: 1ffff110221c6c89
FS:  00005555740ca500(0000) GS:ffff8881a3c1c000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007faad7ca4440 CR3: 0000000028a3c000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 native_queued_spin_lock_slowpath+0xbc/0x8e0
 queued_spin_lock_slowpath+0x43/0x50
 do_raw_spin_lock+0x21f/0x290
 futex_unqueue+0xf6/0x240
 __futex_wait+0x223/0x3e0
 futex_wait+0x104/0x360
 do_futex+0x333/0x420
 __se_sys_futex+0x36f/0x400
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f464f38ebe9
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:00007fffb79d4628 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: ffffffffffffffda RBX: 0000000000010e92 RCX: 00007f464f38ebe9
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f464f5c5fac
RBP: 0000000000000032 R08: 7fffffffffffffff R09: 00000007b79d491f
R10: 00007fffb79d4720 R11: 0000000000000246 R12: 00007f464f5c5fac
R13: 00007fffb79d4720 R14: 0000000000010ec4 R15: 00007fffb79d4740
 </TASK>
CPU: 0 UID: 0 PID: 6059 Comm: syz.2.46 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:__sanitizer_cov_trace_pc+0x11/0x70
Code: 5b e9 d3 a1 58 00 cc cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 48 8b 04 24 65 48 8b 0c 25 08 40 a0 92 <65> 8b 15 c8 93 e0 10 81 e2 00 01 ff 00 74 11 81 fa 00 01 00 00 75
RSP: 0018:ffffc90000007310 EFLAGS: 00000202
RAX: ffffffff895ab3bf RBX: 0000000000000001 RCX: ffff888021339cc0
RDX: ffff888021339cc0 RSI: ffffffff8be332e0 RDI: ffffffff8be332a0
RBP: 0000000000000001 R08: ffffffff8fa37f37 R09: 1ffffffff1f46fe6
R10: dffffc0000000000 R11: fffffbfff1f46fe7 R12: dffffc0000000000
R13: 0000607e5c00b1d0 R14: 0000000000000000 R15: ffff888122d60380
FS:  00007f465026f6c0(0000) GS:ffff8880b861c000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000100000000 CR3: 0000000028a3c000 CR4: 00000000000006f0
Call Trace:
 <IRQ>
 trace_consume_skb+0x7f/0x1f0
 consume_skb+0x58/0xf0
 dummy_xmit+0x140/0x1d0
 dev_hard_start_xmit+0x2d7/0x830
 __dev_queue_xmit+0x1b8d/0x3b50
 ip6_finish_output2+0x11bc/0x16a0
 ndisc_send_skb+0xb54/0x1440
 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_apic_timer_interrupt+0xa6/0xc0
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:__list_del_entry_valid_or_report+0x4/0x190
Code: 4c 89 f1 e8 5e a5 57 fc 90 0f 0b 66 66 2e 0f 1f 84 00 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> 57 41 56 41 55 41 54 53 48 89 fb 49 bd 00 00 00 00 00 fc ff df
RSP: 0018:ffffc9000437fb08 EFLAGS: 00000283
RAX: ffffffff8b741e7f RBX: ffff888110e36488 RCX: 0000000000080000
RDX: ffffc9000864b000 RSI: 0000000000001993 RDI: ffffc900040cfab8
RBP: 1ffff92000819f55 R08: ffff88802133b9ab R09: 1ffff11004267735
R10: dffffc0000000000 R11: ffffed1004267736 R12: dffffc0000000000
R13: dffffc0000000000 R14: ffffc900040cfaa0 R15: ffffc900040cfab8
 plist_del+0x2d6/0x3f0
 __futex_unqueue+0xf0/0x160
 futex_wake_mark+0xe2/0x200
 futex_wake+0x3bb/0x560
 do_futex+0x395/0x420
 __se_sys_futex+0x36f/0x400
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f464f38ebe9
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:00007f465026f0e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: ffffffffffffffda RBX: 00007f464f5c5fa8 RCX: 00007f464f38ebe9
RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007f464f5c5fac
RBP: 00007f464f5c5fa0 R08: 7fffffffffffffff R09: 0000000000000000
R10: 0000000000000007 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f464f5c6038 R14: 00007fffb79d43e0 R15: 00007fffb79d44c8
 </TASK>
sched: DL replenish lagged too much
