rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	1-....: (10500 ticks this GP) idle=1374/1/0x4000000000000000 softirq=22202/22208 fqs=4897
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:  1105281          5            0
rcu: 	cputime:    24913      27576           84   ==> 52490(ms)
rcu: 	(t=10500 jiffies g=13617 q=3491 ncpus=2)
CPU: 1 UID: 0 PID: 7361 Comm: syz.0.415 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:__kernel_text_address+0xd/0x40
Code: e8 48 ff 95 00 eb b3 66 0f 1f 44 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 66 0f 1f 00 53 48 89 fb e8 43 00 00 00 <85> c0 0f 95 c0 48 81 fb 00 d0 07 91 0f 93 c1 48 81 fb d0 7b 22 91
RSP: 0018:ffffc900001e0498 EFLAGS: 00000202
RAX: 0000000000000001 RBX: ffffffff8223136e RCX: 870198a66718ae01
RDX: 0000000000000002 RSI: ffffffff8d998836 RDI: ffffffff8223136e
RBP: ffffc900001e0550 R08: ffffffff8fa1e8f7 R09: 1ffffffff1f43d1e
R10: dffffc0000000000 R11: fffffbfff1f43d1f R12: ffff88801cedd640
R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff9200003c0a2
FS:  00007f736fc696c0(0000) GS:ffff8881a3c1f000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f736fc47fc8 CR3: 000000001ee6c000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 unwind_get_return_address+0x4d/0x90
 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
 skb_release_data+0x62d/0x7c0
 __kfree_skb+0x55/0x70
 tcp_write_queue_purge+0x143/0x2f0
 tcp_done_with_error+0x43/0xd0
 tcp_retransmit_timer+0x1d16/0x3370
 tcp_write_timer+0x162/0x2e0
 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_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 2d 21 f6 e8 c6 00 58 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:ffffc90006a8f500 EFLAGS: 00000286
RAX: 870198a66718ae00 RBX: 0000000000000000 RCX: 870198a66718ae00
RDX: 0000000000000006 RSI: ffffffff8d998836 RDI: 0000000000000001
RBP: ffffc90006a8f5a0 R08: ffffffff8fa1e8f7 R09: 1ffffffff1f43d1e
R10: dffffc0000000000 R11: fffffbfff1f43d1f R12: 0000000000000000
R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff92000d51ea0
 irqentry_exit+0x6f/0x90
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:sctp_hash_transport+0x0/0x19c0
Code: 66 0a f7 48 c7 c7 00 ea a3 8f 31 f6 31 d2 e9 37 70 0b fa 0f 1f 80 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 <f3> 0f 1e fa 55 48 89 e5 41 57 41 56 41 55 41 54 53 48 83 e4 e0 48
RSP: 0018:ffffc90006a8f668 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 000000000000ffff RCX: ffffffff8aacb78b
RDX: 0000000000000010 RSI: ffff888114b9b088 RDI: ffff888114b9b000
RBP: 1ffff1102297362b R08: aa1414ac244e0002 R09: 0000000000000000
R10: aa1414ac244e0002 R11: 0000000000000000 R12: dffffc0000000000
R13: ffff888114b9b15c R14: ffff888114b9b000 R15: ffff888114b9b110
 sctp_assoc_add_peer+0x98e/0x13b0
 sctp_connect_new_asoc+0x30a/0x690
 sctp_sendmsg+0x155c/0x2810
 __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: 0033:0x7f736ed8e9a9
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:00007f736fc69038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f736efb5fa0 RCX: 00007f736ed8e9a9
RDX: 0000000000008040 RSI: 0000200000000f80 RDI: 0000000000000007
RBP: 00007f736ee10d69 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f736efb5fa0 R15: 00007ffe7bfdcb18
 </TASK>
sched: DL replenish lagged too much
