rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	0-....: (1 GPs behind) idle=3d9c/1/0x4000000000000000 softirq=316427/316428 fqs=5234
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:     5253          0            0
rcu: 	cputime:      274          0        52201   ==> 52480(ms)
rcu: 	(t=10500 jiffies g=244017 q=1973 ncpus=2)
CPU: 0 UID: 0 PID: 17955 Comm: syz.0.11787 Not tainted 6.16.0-syzkaller-06588-g759dfc7d04ba #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:__sanitizer_cov_trace_pc+0x0/0x70
Code: 89 fb e8 23 00 00 00 48 8b 3d e4 43 fa 0b 48 89 de 5b e9 63 5c 58 00 cc cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 <f3> 0f 1e fa 48 8b 04 24 65 48 8b 0c 25 08 00 9a 92 65 8b 15 68 4f
RSP: 0018:ffffc90003acf040 EFLAGS: 00000246
RAX: ffffffff8c954f00 RBX: 1ffffffff192a9e0 RCX: 0000000000000000
RDX: ffff88802cb01cc0 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffffff8c954ee0 R08: ffff88802cb01cc0 R09: 0000000000000002
R10: 00000000ffffffff R11: 0000000000000000 R12: 00000000fffffff1
R13: ffff8880125bb800 R14: dffffc0000000000 R15: ffff8880125bb800
FS:  00007f3bbe67c6c0(0000) GS:ffff8880b8680000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000000702 CR3: 000000012f44e000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 qdisc_tree_reduce_backlog+0x313/0x480
 fq_pie_change+0x9f3/0xea0
 fq_pie_init+0x38d/0x840
 qdisc_create+0x7ac/0xea0
 tc_modify_qdisc+0x1538/0x20e0
 rtnetlink_rcv_msg+0x77c/0xb70
 netlink_rcv_skb+0x208/0x470
 netlink_unicast+0x82f/0x9e0
 netlink_sendmsg+0x805/0xb30
 __sock_sendmsg+0x21c/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: 0033:0x7f3bbd78eb69
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:00007f3bbe67c038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f3bbd9b5fa0 RCX: 00007f3bbd78eb69
RDX: 00000000000400c4 RSI: 0000200000000080 RDI: 000000000000000a
RBP: 00007f3bbd811df1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f3bbd9b5fa0 R15: 00007fff8a9cd8f8
 </TASK>
