IPVS: rr: UDP 224.0.0.2:0 - no destination available
rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	0-....: (10499 ticks this GP) idle=039c/1/0x4000000000000000 softirq=51203/51203 fqs=5237
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:     6025          0            0
rcu: 	cputime:      285      52193            3   ==> 52490(ms)
rcu: 	(t=10501 jiffies g=45465 q=338432 ncpus=2)
CPU: 0 UID: 0 PID: 11442 Comm: syz.3.1409 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+0x11b/0x980 net/sched/sch_taprio.c:723
Code: 4c 8d bb 90 02 00 00 4c 89 f8 48 c1 e8 03 42 0f b6 04 20 84 c0 0f 85 bb 06 00 00 41 8b 1f 89 de 83 e6 01 31 ff e8 15 d2 5e f8 <83> e3 01 0f 85 62 01 00 00 48 89 6c 24 18 4c 89 f3 4d 8d 7e 18 4c
RSP: 0018:ffffc90000007ad8 EFLAGS: 00000246
RAX: ffffffff896135db RBX: 0000000000000000 RCX: 0000000000000100
RDX: ffff88805ce63c80 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000002 R08: 0000000000000000 R09: ffffffff89608916
R10: 0000000000000001 R11: ffffffff8953c0b0 R12: dffffc0000000000
R13: ffff88807f364000 R14: ffff88805489c800 R15: ffff88805438e290
FS:  0000000000000000(0000) GS:ffff88812612e000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b3120bff8 CR3: 000000000dd38000 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/0x1540 net/sched/sch_generic.c:420
 qdisc_run+0xc7/0x300 include/net/pkt_sched.h:120
 net_tx_action+0x7c9/0xa10 net/core/dev.c:5781
 handle_softirqs+0x286/0x870 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:1052 [inline]
 sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1052
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697
RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline]
RIP: 0010:_raw_spin_unlock_irqrestore+0xa8/0x110 kernel/locking/spinlock.c:194
Code: 74 05 e8 7b 5b 7c f6 48 c7 44 24 20 00 00 00 00 9c 8f 44 24 20 f6 44 24 21 02 75 4f f7 c3 00 02 00 00 74 01 fb bf 01 00 00 00 <e8> 83 89 44 f6 65 8b 05 dc b8 23 07 85 c0 74 40 48 c7 04 24 0e 36
RSP: 0018:ffffc9000b067740 EFLAGS: 00000206
RAX: d49fe085e7d23d00 RBX: 0000000000000a06 RCX: d49fe085e7d23d00
RDX: 0000000000000000 RSI: ffffffff8d715097 RDI: 0000000000000001
RBP: ffffc9000b0677d0 R08: ffffffff8f7d2477 R09: 1ffffffff1efa48e
R10: dffffc0000000000 R11: fffffbfff1efa48f R12: dffffc0000000000
R13: 1ffff9200160cf0c R14: ffffffff99a20658 R15: 1ffff9200160cee8
 debug_rcu_head_queue kernel/rcu/rcu.h:237 [inline]
 __call_rcu_common kernel/rcu/tree.c:3108 [inline]
 call_rcu+0xc3/0x9c0 kernel/rcu/tree.c:3243
 release_task+0x131b/0x17f0 kernel/exit.c:296
 exit_notify kernel/exit.c:778 [inline]
 do_exit+0x15f2/0x2300 kernel/exit.c:978
 do_group_exit+0x21c/0x2d0 kernel/exit.c:1107
 get_signal+0x1285/0x1340 kernel/signal.c:3034
 arch_do_signal_or_restart+0xa0/0x790 arch/x86/kernel/signal.c:337
 exit_to_user_mode_loop+0x72/0x130 kernel/entry/common.c:40
 exit_to_user_mode_prepare include/linux/irq-entry-common.h:225 [inline]
 syscall_exit_to_user_mode_work include/linux/entry-common.h:175 [inline]
 syscall_exit_to_user_mode include/linux/entry-common.h:210 [inline]
 do_syscall_64+0x2bd/0xfa0 arch/x86/entry/syscall_64.c:100
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7efcb1b8f749
Code: Unable to access opcode bytes at 0x7efcb1b8f71f.
RSP: 002b:00007efcb2a640e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 00007efcb1de6098 RCX: 00007efcb1b8f749
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007efcb1de6098
RBP: 00007efcb1de6090 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007efcb1de6128 R14: 00007ffde9b63750 R15: 00007ffde9b63838
 </TASK>
sched: DL replenish lagged too much