rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	1-....: (1 GPs behind) idle=6d74/1/0x4000000000000000 softirq=24504/24506 fqs=5244
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:     5296          0            0
rcu: 	cputime:      349          0        52148   ==> 52510(ms)
rcu: 	(t=10502 jiffies g=16941 q=1168 ncpus=2)
CPU: 1 UID: 0 PID: 8046 Comm: syz.1.664 Not tainted 6.16.0-rc5-syzkaller-00159-g47c84997c686 #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_switch+0xba/0x130
Code: 44 8b 1d a9 13 e0 10 41 81 e3 00 01 ff 00 74 13 41 81 fb 00 01 00 00 75 d9 41 83 b8 3c 16 00 00 00 74 cf 45 8b 98 18 16 00 00 <41> 83 fb 03 75 c2 4d 8b 98 20 16 00 00 45 8b b8 1c 16 00 00 49 c1
RSP: 0018:ffffc900030a7080 EFLAGS: 00000246
RAX: 0000000000000002 RBX: ffff88810eae403c RCX: 0000000000000005
RDX: ffffffff8978b63e RSI: ffffffff8f5667c0 RDI: 00000000fffffff1
RBP: dffffc0000000000 R08: ffff888039a09cc0 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 00000000fffffff1
R13: ffff88810eae4148 R14: dffffc0000000000 R15: ffff88810eae4000
FS:  00007f142414b6c0(0000) GS:ffff8881a3c1b000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f142412ad58 CR3: 000000011ba46000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 qdisc_tree_reduce_backlog+0x10e/0x480
 pie_change+0x96d/0xca0
 pie_init+0x2a3/0x3f0
 qdisc_create+0x7ac/0xea0
 tc_modify_qdisc+0x1538/0x20e0
 rtnetlink_rcv_msg+0x77c/0xb70
 netlink_rcv_skb+0x208/0x470
 netlink_unicast+0x75c/0x8e0
 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: 0033:0x7f142338e929
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:00007f142414b038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f14235b6080 RCX: 00007f142338e929
RDX: 0000000000000000 RSI: 0000200000000000 RDI: 0000000000000009
RBP: 00007f1423410b39 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f14235b6080 R15: 00007fff32e7a2d8
 </TASK>
