rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	1-....: (10500 ticks this GP) idle=c664/1/0x4000000000000000 softirq=108097/108097 fqs=4797
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:   996273          0            0
rcu: 	cputime:    32146      20332           91   ==> 52480(ms)
rcu: 	(t=10500 jiffies g=116793 q=1612 ncpus=2)
CPU: 1 UID: 0 PID: 25942 Comm: syz.4.5779 Not tainted 6.16.0-syzkaller-11113-gf3af62b6cee8 #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:stack_trace_consume_entry+0x5/0x280
Code: f0 5b 41 5e 5d e9 8b 0e ce 09 cc e8 15 2a cb 09 0f 1f 44 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 55 <41> 57 41 56 41 55 41 54 53 48 83 ec 18 48 ba 00 00 00 00 00 fc ff
RSP: 0018:ffffc900001e0498 EFLAGS: 00000282
RAX: ffffffff8a2b11a1 RBX: ffffc900001e0560 RCX: fe901b09babb1f00
RDX: 0000000000000001 RSI: ffffffff8a2b11a1 RDI: ffffc900001e0560
RBP: ffffc900001e0530 R08: ffffc900001e0a88 R09: 0000000000000000
R10: ffffc900001e04f8 R11: ffffffff81ac34b0 R12: ffff88801fc1d640
R13: ffff88803bcd8c40 R14: ffffffff81ac34b0 R15: ffffc900001e04a8
FS:  00007f0a2ebfb6c0(0000) GS:ffff8881a3c2a000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f0a2ebdad58 CR3: 000000010b36c000 CR4: 00000000000006f0
DR0: 0000200000000300 DR1: 0000000000000000 DR2: 0000200000000300
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 arch_stack_walk+0x110/0x150
 stack_trace_save+0x9c/0xe0
 kasan_save_track+0x3e/0x80
 __kasan_slab_alloc+0x6c/0x80
 kmem_cache_alloc_noprof+0x1c1/0x3c0
 fill_pool+0x100/0x570
 debug_object_assert_init+0x2b1/0x380
 __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: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 6f e1 e8 09 e8 1a 28 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:ffffc90001d0f218 EFLAGS: 00000286
RAX: fe901b09babb1f00 RBX: 0000000000000000 RCX: fe901b09babb1f00
RDX: 0000000000000000 RSI: ffffffff8d9b1618 RDI: ffffffff8be2fd00
RBP: ffffc90001d0f270 R08: ffffffff8fa32437 R09: 1ffffffff1f46486
R10: dffffc0000000000 R11: fffffbfff1f46487 R12: ffff88801fc1d640
R13: dffffc0000000000 R14: ffff88802103b980 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: 0033:0x7f0a2dd8ebe9
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:00007f0a2ebfb038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f0a2dfb5fa0 RCX: 00007f0a2dd8ebe9
RDX: e07e872420dfef8a RSI: 0000200000000b00 RDI: 0000000000000009
RBP: 00007f0a2de11e19 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f0a2dfb6038 R14: 00007f0a2dfb5fa0 R15: 00007ffd6f28c508
 </TASK>
clocksource: Long readout interval, skipping watchdog check: cs_nsec: 105537363351 wd_nsec: 105537366088
