rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	1-....: (10499 ticks this GP) idle=13c4/1/0x4000000000000000 softirq=121329/121329 fqs=5212
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:     6035          0            0
rcu: 	cputime:      276      52194            0   ==> 52480(ms)
rcu: 	(t=10500 jiffies g=101625 q=1718 ncpus=2)
CPU: 1 UID: 0 PID: 23 Comm: ksoftirqd/1 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
RIP: 0010:taprio_dequeue_from_txq+0x83/0x980 net/sched/sch_taprio.c:712
Code: 00 00 00 00 fc ff df 80 3c 08 00 74 08 4c 89 ef e8 f2 ef b5 f8 4d 8b 6d 00 4c 89 e0 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df <80> 3c 08 00 74 08 4c 89 e7 e8 cf ef b5 f8 4d 63 ff 49 c1 e7 03 4d
RSP: 0018:ffffc90000a08ad8 EFLAGS: 00000a06
RAX: 1ffff11004f2ce50 RBX: ffff888027967000 RCX: dffffc0000000000
RDX: 0000000000000100 RSI: 000000000000000a RDI: ffff888027967000
RBP: 1ffff11004f2ce6a R08: ffffffff897172b6 R09: ffffffff8df41a20
R10: 0000000000000001 R11: ffffffff8964b5e0 R12: ffff888027967280
R13: ffff8880771e0000 R14: ffff88806b906c00 R15: 000000000000000a
FS:  0000000000000000(0000) GS:ffff888125f35000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f98ffd156c0 CR3: 0000000039348000 CR4: 00000000003526f0
Call Trace:
 <IRQ>
 taprio_dequeue_tc_priority+0x1ac/0x750 net/sched/sch_taprio.c:793
 taprio_dequeue+0x186/0x550 net/sched/sch_taprio.c:-1
 dequeue_skb net/sched/sch_generic.c:297 [inline]
 qdisc_restart net/sched/sch_generic.c:402 [inline]
 __qdisc_run+0x23f/0x1510 net/sched/sch_generic.c:420
 qdisc_run+0xc7/0x300 include/net/pkt_sched.h:120
 net_tx_action+0x7ac/0x9f0 net/core/dev.c:5781
 handle_softirqs+0x27d/0x850 kernel/softirq.c:622
 __do_softirq kernel/softirq.c:656 [inline]
 invoke_softirq kernel/softirq.c:496 [inline]
 __irq_exit_rcu+0xca/0x1f0 kernel/softirq.c:723
 irq_exit_rcu+0x9/0x30 kernel/softirq.c:739
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1056 [inline]
 sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1056
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697
RIP: 0010:finish_task_switch+0x242/0x940 kernel/sched/core.c:5114
Code: 0f 84 c2 01 00 00 48 85 db 0f 85 e9 01 00 00 0f 1f 44 00 00 4c 8b 75 d0 4c 89 e7 e8 28 4a cc 09 e8 83 75 37 00 fb 4c 8b 65 c0 <49> 8d bc 24 48 16 00 00 48 89 f8 48 c1 e8 03 42 0f b6 04 28 84 c0
RSP: 0018:ffffc900001d79f8 EFLAGS: 00000282
RAX: 6db2352286197f00 RBX: 0000000000000000 RCX: 6db2352286197f00
RDX: 0000000000000000 RSI: ffffffff8d7925e3 RDI: ffffffff8bc08360
RBP: ffffc900001d7a50 R08: ffffffff8f822077 R09: 1ffffffff1f0440e
R10: dffffc0000000000 R11: fffffbfff1f0440f R12: ffff88801caf5b80
R13: dffffc0000000000 R14: ffff888027a6db80 R15: ffff8880b873b498
 context_switch kernel/sched/core.c:5259 [inline]
 __schedule+0x14c4/0x5000 kernel/sched/core.c:6863
 __schedule_loop kernel/sched/core.c:6945 [inline]
 schedule+0x165/0x360 kernel/sched/core.c:6960
 smpboot_thread_fn+0x5bd/0xa60 kernel/smpboot.c:156
 kthread+0x711/0x8a0 kernel/kthread.c:463
 ret_from_fork+0x599/0xb30 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:246
 </TASK>