rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	1-....: (10493 ticks this GP) idle=a764/1/0x4000000000000000 softirq=16219/16219 fqs=5248
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:  1056432          0            0
rcu: 	cputime:    28621      23878           85   ==> 52510(ms)
rcu: 	(t=10502 jiffies g=9153 q=2584 ncpus=2)
CPU: 1 UID: 0 PID: 6544 Comm: syz.3.280 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:_raw_spin_unlock_irqrestore+0xa8/0x110
Code: 74 05 e8 cb 9e 56 f6 48 c7 44 24 20 00 00 00 00 9c 8f 44 24 20 f6 44 24 21 02 75 4f f7 c3 00 02 00 00 74 01 fb bf 01 00 00 00 <e8> 13 cd 1f f6 65 8b 05 bc f9 2e 07 85 c0 74 40 48 c7 04 24 0e 36
RSP: 0018:ffffc900001e08e0 EFLAGS: 00000206
RAX: 7d9fcc112c562000 RBX: 0000000000000a02 RCX: 7d9fcc112c562000
RDX: 0000000000000002 RSI: ffffffff8d998836 RDI: 0000000000000001
RBP: ffffc900001e0968 R08: ffffffff8fa1e8f7 R09: 1ffffffff1f43d1e
R10: dffffc0000000000 R11: fffffbfff1f43d1f R12: dffffc0000000000
R13: ffff88801af9ae70 R14: ffffffff99d624e0 R15: 1ffff9200003c11c
FS:  00007f4f1c6976c0(0000) GS:ffff8881a3c1f000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffd73840040 CR3: 0000000027392000 CR4: 00000000000006f0
DR0: 0000200000000300 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 debug_object_assert_init+0x20e/0x380
 __mod_timer+0x4a/0xf30
 addrconf_mod_rs_timer+0x51/0xe0
 addrconf_rs_timer+0x45e/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:__schedule+0x196/0x4d00
Code: 24 49 8d 5e 20 48 89 d8 48 c1 e8 03 42 80 3c 28 00 74 08 48 89 df e8 39 eb b3 f6 48 8b 1b 48 89 d8 48 c1 e8 03 42 80 3c 28 00 <74> 08 48 89 df e8 20 eb b3 f6 48 81 3b 9d 6e ac 57 0f 85 26 18 00
RSP: 0018:ffffc90002aaf180 EFLAGS: 00000246
RAX: 1ffff92000555000 RBX: ffffc90002aa8000 RCX: 7d9fcc112c562000
RDX: 0000000000000000 RSI: ffffffff8be29f20 RDI: ffffffff8be29ee0
RBP: ffffc90002aaf390 R08: ffffffff8fa1e8f7 R09: 1ffffffff1f43d1e
R10: dffffc0000000000 R11: fffffbfff1f43d1f R12: ffff88813663aac8
R13: dffffc0000000000 R14: ffff888037e89cc0 R15: ffff8881a3c1f000
 preempt_schedule_irq+0xb5/0x150
 irqentry_exit+0x6f/0x90
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:sock_alloc_inode+0x4/0xc0
Code: f4 ff ff ff 5b 41 5e e9 1a 40 25 02 cc 66 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 <53> 48 89 fb e8 43 05 74 f8 48 8b 3d cc bd 71 04 48 81 c3 18 08 00
RSP: 0018:ffffc90002aaf508 EFLAGS: 00000293
RAX: ffffffff823b162e RBX: ffffffff8c9226e0 RCX: ffff888037e89cc0
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff888101a9a000
RBP: 0000000000000006 R08: ffffc90002aaf640 R09: 0000000000000001
R10: dffffc0000000000 R11: ffffffff894c23a0 R12: dffffc0000000000
R13: 0000000000000001 R14: ffff888101a9a000 R15: ffffffff894c23a0
 alloc_inode+0x6a/0x1b0
 __sock_create+0x12d/0x9f0
 mptcp_subflow_create_socket+0xfd/0xb40
 __mptcp_nmpc_sk+0x148/0x750
 mptcp_sendmsg_fastopen+0xd4/0x580
 mptcp_sendmsg+0x176c/0x1970
 __sock_sendmsg+0x19c/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: 0033:0x7f4f1b78e9a9
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:00007f4f1c697038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f4f1b9b5fa0 RCX: 00007f4f1b78e9a9
RDX: 0000000034004000 RSI: 0000200000000240 RDI: 0000000000000004
RBP: 00007f4f1b810d69 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f4f1b9b5fa0 R15: 00007ffd1e06f278
 </TASK>
sched: DL replenish lagged too much
