rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	1-....: (10501 ticks this GP) idle=e4dc/1/0x4000000000000000 softirq=22322/22322 fqs=5249
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:   966929          0            0
rcu: 	cputime:    25437      27051           96   ==> 52500(ms)
rcu: 	(t=10502 jiffies g=14925 q=2636 ncpus=2)
CPU: 1 UID: 0 PID: 7412 Comm: syz.1.392 Not tainted 6.16.0-syzkaller-06600-g1dbf1d590d10-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:rcu_read_unlock_special+0x87/0x4c0
Code: f1 f1 f1 00 f2 f2 f2 4a 89 04 2b 66 42 c7 44 2b 09 f3 f3 42 c6 44 2b 0b f3 65 44 8b 35 b2 e8 f2 10 41 f7 c6 00 00 f0 00 74 49 <48> c7 44 24 40 0e 36 e0 45 4a c7 04 2b 00 00 00 00 66 42 c7 44 2b
RSP: 0018:ffffc900001e05e0 EFLAGS: 00000206
RAX: 723120691a22d700 RBX: 1ffff9200003c0c4 RCX: 723120691a22d700
RDX: 0000000000000002 RSI: ffffffff8d9792dd RDI: ffffffff8be30a00
RBP: ffffc900001e06d8 R08: ffffffff8fa07bf7 R09: 1ffffffff1f40f7e
R10: dffffc0000000000 R11: fffffbfff1f40f7f R12: ffffffff8e141800
R13: dffffc0000000000 R14: 0000000000000246 R15: 0000000000000002
FS:  00007f33250ca6c0(0000) GS:ffff8881a3c80000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000192000 CR3: 000000002a236000 CR4: 00000000000006f0
DR0: 0000200000000300 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 __rcu_read_unlock+0x84/0xe0
 unwind_next_frame+0x19ae/0x2390
 arch_stack_walk+0x11c/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:rcu_read_unlock_special+0x87/0x4c0
Code: f1 f1 f1 00 f2 f2 f2 4a 89 04 2b 66 42 c7 44 2b 09 f3 f3 42 c6 44 2b 0b f3 65 44 8b 35 b2 e8 f2 10 41 f7 c6 00 00 f0 00 74 49 <48> c7 44 24 40 0e 36 e0 45 4a c7 04 2b 00 00 00 00 66 42 c7 44 2b
RSP: 0018:ffffc900088b7100 EFLAGS: 00000206
RAX: 723120691a22d700 RBX: 1ffff92001116e28 RCX: 723120691a22d700
RDX: 0000000000000006 RSI: ffffffff8d9792dd RDI: ffffffff8be30a00
RBP: ffffc900088b7200 R08: ffffffff8fa07bf7 R09: 1ffffffff1f40f7e
R10: dffffc0000000000 R11: fffffbfff1f40f7f R12: ffffffff8e141800
R13: dffffc0000000000 R14: 0000000000000246 R15: 0000000000000002
 __rcu_read_unlock+0x84/0xe0
 ___perf_sw_event+0x64a/0x700
 __perf_sw_event+0xfa/0x1a0
 do_user_addr_fault+0x12e4/0x1390
 exc_page_fault+0x76/0xf0
 asm_exc_page_fault+0x26/0x30
RIP: 0010:rep_movs_alternative+0x75/0x90
Code: 05 c3 cc cc cc cc 48 8b 06 48 89 07 48 8d 47 08 48 83 e0 f8 48 29 f8 48 01 c7 48 01 c6 48 29 c1 48 89 c8 48 c1 e9 03 83 e0 07 <f3> 48 a5 89 c1 85 c9 75 91 e9 7d 0a 04 00 48 8d 0c c8 eb 86 cc cc
RSP: 0018:ffffc900088b7698 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffff888119dc00e8 RCX: 000000000000022a
RDX: 0000000000000000 RSI: ffff888119dcf168 RDI: 0000200000192000
RBP: ffffc900088b7800 R08: ffff888119dd02b7 R09: 1ffff110233ba056
R10: dffffc0000000000 R11: ffffed10233ba057 R12: 1ffff92001116fbf
R13: 0000200000182f80 R14: ffffc900088b7e08 R15: 00000000000101d0
 _copy_to_iter+0x24c/0x16f0
 __skb_datagram_iter+0xf8/0x990
 skb_copy_datagram_iter+0xc5/0x230
 tipc_recvstream+0x72d/0xe70
 sock_recvmsg+0x22c/0x270
 ____sys_recvmsg+0x1c9/0x460
 ___sys_recvmsg+0x1b5/0x510
 __x64_sys_recvmsg+0x198/0x260
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f332418ebe9
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:00007f33250ca038 EFLAGS: 00000246 ORIG_RAX: 000000000000002f
RAX: ffffffffffffffda RBX: 00007f33243b5fa0 RCX: 00007f332418ebe9
RDX: 0000000000001f00 RSI: 0000200000000500 RDI: 000000000000000c
RBP: 00007f3324211e19 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f33243b6038 R14: 00007f33243b5fa0 R15: 00007ffce322b008
 </TASK>
sched: DL replenish lagged too much
