rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	1-....: (10499 ticks this GP) idle=425c/1/0x4000000000000000 softirq=21248/21248 fqs=4814
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:  1054985          0            0
rcu: 	cputime:    31159      21330          104   ==> 52490(ms)
rcu: 	(t=10500 jiffies g=13757 q=3382 ncpus=2)
CPU: 1 UID: 0 PID: 6956 Comm: syz.3.288 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:e1000_xmit_frame+0x3c61/0x55c0
Code: a4 89 fb 48 8b 7c 24 20 4d 8b 36 48 83 c7 2a 48 89 f8 48 c1 e8 03 42 0f b6 04 28 84 c0 0f 85 8d 16 00 00 0f b7 07 41 89 1c 06 <45> 31 f6 48 c7 84 24 80 01 00 00 0e 36 e0 45 48 8b 84 24 58 01 00
RSP: 0018:ffffc900001e03e0 EFLAGS: 00000246
RAX: 0000000000003818 RBX: 000000000000002d RCX: ffff888030855640
RDX: ffff888022822718 RSI: 0000000000000000 RDI: ffff88802282272a
RBP: ffffc900001e05f0 R08: ffffffff8fa3b537 R09: 1ffffffff1f476a6
R10: dffffc0000000000 R11: fffffbfff1f476a7 R12: 00000000ffffffff
R13: dffffc0000000000 R14: ffffc900076c0000 R15: 00000000ffffffd2
FS:  00007f704c5df6c0(0000) GS:ffff8881a3c11000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f104b77c990 CR3: 000000012cde6000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 dev_hard_start_xmit+0x2d7/0x830
 sch_direct_xmit+0x241/0x4b0
 __dev_queue_xmit+0x1857/0x3b50
 lapb_data_transmit+0x90/0xb0
 lapb_transmit_buffer+0x163/0x200
 lapb_t1timer_expiry+0x699/0xab0
 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:finish_task_switch+0x26b/0x950
Code: 0f 84 3c 01 00 00 48 85 db 0f 85 63 01 00 00 0f 1f 44 00 00 4c 8b 75 d0 4c 89 e7 e8 9f 80 ec 09 e8 ea 41 36 00 fb 4c 8b 65 c0 <49> 8d bc 24 18 16 00 00 48 89 f8 48 c1 e8 03 42 0f b6 04 28 84 c0
RSP: 0018:ffffc90002b9f218 EFLAGS: 00000286
RAX: df9cd7ef99a38100 RBX: 0000000000000000 RCX: df9cd7ef99a38100
RDX: 0000000000000000 RSI: ffffffff8d9baf27 RDI: ffffffff8be34480
RBP: ffffc90002b9f270 R08: ffffffff8fa3b537 R09: 1ffffffff1f476a6
R10: dffffc0000000000 R11: fffffbfff1f476a7 R12: ffff888030855640
R13: dffffc0000000000 R14: ffff88803023b980 R15: ffff88813663ab58
 __schedule+0x17a0/0x4cc0
 schedule+0x165/0x360
 schedule_timeout+0x9a/0x270
 wait_woken+0xbd/0x1b0
 __inet_stream_connect+0x8f4/0xe80
 mptcp_sendmsg_fastopen+0x2a5/0x580
 mptcp_sendmsg+0x176c/0x1970
 __sock_sendmsg+0xe5/0x270
 ____sys_sendmsg+0x505/0x830
 ___sys_sendmsg+0x21f/0x2a0
 __x64_sys_sendmsg+0x19b/0x260
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f704b78ec29
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:00007f704c5df038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f704b9d5fa0 RCX: 00007f704b78ec29
RDX: e07e872420dfef8a RSI: 0000200000000b00 RDI: 0000000000000004
RBP: 00007f704b811e41 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f704b9d6038 R14: 00007f704b9d5fa0 R15: 00007fffcefdd9e8
 </TASK>
sched: DL replenish lagged too much
