rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	1-....: (10497 ticks this GP) idle=f154/1/0x4000000000000000 softirq=14524/14524 fqs=4443
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:  1037945          0            0
rcu: 	cputime:    25623      26866           99   ==> 52490(ms)
rcu: 	(t=10500 jiffies g=6401 q=10809 ncpus=2)
CPU: 1 UID: 0 PID: 6047 Comm: syz.1.54 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:unwind_get_return_address+0x4f/0x90
Code: 4c 83 3b 00 74 3a 48 83 c3 48 49 89 df 49 c1 ef 03 43 80 3c 37 00 74 08 48 89 df e8 fb a2 b0 00 48 8b 3b e8 93 a3 1a 00 85 c0 <74> 14 43 80 3c 37 00 74 08 48 89 df e8 e0 a2 b0 00 48 8b 03 eb 02
RSP: 0018:ffffc900001e07c8 EFLAGS: 00000202
RAX: 0000000000000001 RBX: ffffc900001e0830 RCX: ef56106a9fb70c00
RDX: 0000000000000001 RSI: ffffffff8d998836 RDI: ffffffff894dc378
RBP: ffffc900001e0870 R08: ffffffff8fa1e8f7 R09: 1ffffffff1f43d1e
R10: dffffc0000000000 R11: fffffbfff1f43d1f R12: ffff8881077d5640
R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff9200003c106
FS:  00007f086df216c0(0000) GS:ffff8881a3c1f000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 00000001191ce000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 arch_stack_walk+0xfc/0x150
 stack_trace_save+0x9c/0xe0
 kasan_save_track+0x3e/0x80
 kasan_save_free_info+0x46/0x50
 __kasan_slab_free+0x62/0x70
 kmem_cache_free+0x18f/0x400
 rcu_core+0xca8/0x1710
 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:lock_acquire+0x175/0x360
Code: 00 00 00 00 9c 8f 44 24 30 f7 44 24 30 00 02 00 00 0f 85 cd 00 00 00 f7 44 24 08 00 02 00 00 74 01 fb 65 48 8b 05 9b d3 01 11 <48> 3b 44 24 58 0f 85 f2 00 00 00 48 83 c4 60 5b 41 5c 41 5d 41 5e
RSP: 0018:ffffc90003d5fac8 EFLAGS: 00000206
RAX: ef56106a9fb70c00 RBX: 0000000000000000 RCX: ef56106a9fb70c00
RDX: 0000000000030000 RSI: ffffffff8db86553 RDI: ffffffff8be29f40
RBP: ffffffff8b57dc70 R08: ffffc90003d5f8e8 R09: 0000000000000020
R10: dffffc0000000000 R11: ffffffff819eacb0 R12: 0000000000000000
R13: ffff888039c29d58 R14: 0000000000000001 R15: 0000000000000246
 lock_sock_nested+0x48/0x100
 mptcp_subflow_shutdown+0x30/0x500
 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
 fput_close_sync+0x119/0x200
 __x64_sys_close+0x7f/0x110
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f086d18e9a9
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:00007f086df21038 EFLAGS: 00000246 ORIG_RAX: 0000000000000003
RAX: ffffffffffffffda RBX: 00007f086d3b5fa0 RCX: 00007f086d18e9a9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 000000000000000c
RBP: 00007f086d210d69 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f086d3b5fa0 R15: 00007ffc365509b8
 </TASK>
sched: DL replenish lagged too much
