rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	0-....: (3853 ticks this GP) idle=088c/1/0x4000000000000000 softirq=26891/27065 fqs=4849
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:   715247        669            0
rcu: 	cputime:    17770      20726           74   ==> 38500(ms)
rcu: 	(t=10500 jiffies g=19885 q=2693 ncpus=2)
CPU: 0 UID: 0 PID: 8354 Comm: syz.1.732 Not tainted 6.16.0-rc6-syzkaller-00411-g95993dc3039e-dirty #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:memcpy_orig+0x19/0x130
Code: 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 48 89 f8 48 83 fa 20 72 7e 40 38 fe 7c 35 48 83 ea 20 48 83 ea 20 4c 8b 06 <4c> 8b 4e 08 4c 8b 56 10 4c 8b 5e 18 48 8d 76 20 4c 89 07 4c 89 4f
RSP: 0018:ffffc90000007b98 EFLAGS: 00000287
RAX: ffffc90000007be0 RBX: 0000000000000101 RCX: ffffffff81ae2b36
RDX: ffffffffffffffe8 RSI: ffff8880380da438 RDI: ffffc90000007be0
RBP: ffffc90000007c90 R08: ffffffff99fd09e0 R09: 1ffff92000000f80
R10: dffffc0000000000 R11: fffff52000000f81 R12: 1ffff92000000f78
R13: ffff8880380da410 R14: 00000000fffff501 R15: ffffc90000007be0
FS:  00007f9f98aa26c0(0000) GS:ffff8880b861f000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c2ee023 CR3: 0000000037a74000 CR4: 00000000000006f0
DR0: 0000200000000300 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 call_timer_fn+0xa6/0x5f0
 __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:preempt_schedule_irq+0xb0/0x150
Code: 24 20 f6 44 24 21 02 74 0c 90 0f 0b 48 f7 03 08 00 00 00 74 64 bf 01 00 00 00 e8 8b 1d 21 f6 e8 c6 f0 57 f6 fb bf 01 00 00 00 <e8> 1b ab ff ff 48 c7 44 24 40 00 00 00 00 9c 8f 44 24 40 8b 44 24
RSP: 0018:ffffc90006b47900 EFLAGS: 00000286
RAX: 4b107fdb97c43900 RBX: 0000000000000000 RCX: 4b107fdb97c43900
RDX: 0000000000000006 RSI: ffffffff8d998940 RDI: 0000000000000001
RBP: ffffc90006b479a0 R08: ffffffff8fa1e9f7 R09: 1ffffffff1f43d3e
R10: dffffc0000000000 R11: fffffbfff1f43d3f R12: 0000000000000000
R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff92000d68f20
 irqentry_exit+0x6f/0x90
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:queue_work_on+0x1f7/0x270
Code: 4d 85 ff 75 16 e8 d9 54 35 00 eb 15 e8 d2 54 35 00 e8 fd c4 e3 09 4d 85 ff 74 ea e8 c3 54 35 00 fb 48 c7 44 24 40 0e 36 e0 45 <4b> c7 04 2e 00 00 00 00 66 43 c7 44 2e 09 00 00 43 c6 44 2e 0b 00
RSP: 0018:ffffc90006b47a60 EFLAGS: 00000283
RAX: ffffffff818ad42d RBX: ffff88811a1d5401 RCX: 0000000000080000
RDX: ffffc9000f4d2000 RSI: 0000000000003b1b RDI: 0000000000003b1c
RBP: ffffc90006b47b60 R08: ffffffff8fa1e9f7 R09: 1ffffffff1f43d3e
R10: dffffc0000000000 R11: fffffbfff1f43d3f R12: 0000000000000000
R13: dffffc0000000000 R14: 1ffff92000d68f54 R15: 0000000000000200
 mptcp_schedule_work+0xd2/0x1a0
 mptcp_subflow_shutdown+0x24e/0x500
 mptcp_check_send_data_fin+0x1fe/0x3f0
 __mptcp_close+0x289/0xb00
 mptcp_close+0x28/0x1a0
 inet_release+0x144/0x190
 sock_close+0xc3/0x240
 __fput+0x44c/0xa70
 task_work_run+0x1d4/0x260
 exit_to_user_mode_loop+0xec/0x110
 do_syscall_64+0x2bd/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f9f97b8e9a9
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:00007f9f98aa2038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: 0000000000000000 RBX: 00007f9f97db5fa0 RCX: 00007f9f97b8e9a9
RDX: 0000000020000001 RSI: 0000200000000780 RDI: 000000000000000d
RBP: 00007f9f97c10d69 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f9f97db5fa0 R15: 00007fff1dcb52a8
 </TASK>
sched: DL replenish lagged too much
