rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	0-...!: (10500 ticks this GP) idle=9d4c/1/0x4000000000000000 softirq=67165/67165 fqs=0
rcu: 	(t=10500 jiffies g=59237 q=247 ncpus=2)
rcu: rcu_preempt kthread timer wakeup didn't happen for 10499 jiffies! g59237 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402
rcu: 	Possible timer handling issue on cpu=0 timer-softirq=34692
rcu: rcu_preempt kthread starved for 10500 jiffies! g59237 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->cpu=0
rcu: 	Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior.
rcu: RCU grace-period kthread stack dump:
task:rcu_preempt     state:I stack:27224 pid:16    tgid:16    ppid:2      task_flags:0x208040 flags:0x00080000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5325 [inline]
 __schedule+0x1798/0x4cc0 kernel/sched/core.c:6929
 __schedule_loop kernel/sched/core.c:7011 [inline]
 schedule+0x165/0x360 kernel/sched/core.c:7026
 schedule_timeout+0x12b/0x270 kernel/time/sleep_timeout.c:99
 rcu_gp_fqs_loop+0x301/0x1540 kernel/rcu/tree.c:2083
 rcu_gp_kthread+0x99/0x390 kernel/rcu/tree.c:2285
 kthread+0x711/0x8a0 kernel/kthread.c:463
 ret_from_fork+0x4bc/0x870 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>
CPU: 0 UID: 0 PID: 5815 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
RIP: 0010:__sanitizer_cov_trace_pc+0x0/0x70 kernel/kcov.c:210
Code: 89 fb e8 23 00 00 00 48 8b 3d 14 22 e1 0b 48 89 de 5b e9 83 80 5a 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 10 91 92 65 8b 15 18 7c
RSP: 0018:ffffc90000007458 EFLAGS: 00000283
RAX: ffffffff8965d050 RBX: 0000000000000000 RCX: ffff888020e91e40
RDX: 0000000000000100 RSI: 0000000000000010 RDI: 000000000000000a
RBP: 1ffff1100425b472 R08: 0000000000000000 R09: ffffffff89652936
R10: 0000000000000001 R11: ffffffff89587ea0 R12: dffffc0000000000
R13: ffff8880212da394 R14: 0000000000000010 R15: 0000000000000002
FS:  000055557cdf2500(0000) GS:ffff888125d0f000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f56ab996f98 CR3: 000000002536c000 CR4: 00000000003526f0
Call Trace:
 <IRQ>
 taprio_dequeue_tc_priority+0x187/0x750 net/sched/sch_taprio.c:792
 taprio_dequeue+0x186/0x550 net/sched/sch_taprio.c:-1
 dequeue_skb net/sched/sch_generic.c:294 [inline]
 qdisc_restart net/sched/sch_generic.c:399 [inline]
 __qdisc_run+0x239/0x15f0 net/sched/sch_generic.c:417
 __dev_xmit_skb net/core/dev.c:4221 [inline]
 __dev_queue_xmit+0x1056/0x3b50 net/core/dev.c:4729
 dev_queue_xmit include/linux/netdevice.h:3365 [inline]
 tipc_l2_send_msg+0x337/0x400 net/tipc/bearer.c:516
 tipc_bearer_xmit_skb+0x2b3/0x400 net/tipc/bearer.c:575
 tipc_disc_timeout+0x580/0x6d0 net/tipc/discover.c:338
 call_timer_fn+0x17e/0x5f0 kernel/time/timer.c:1747
 expire_timers kernel/time/timer.c:1798 [inline]
 __run_timers kernel/time/timer.c:2372 [inline]
 __run_timer_base+0x61a/0x860 kernel/time/timer.c:2384
 run_timer_base kernel/time/timer.c:2393 [inline]
 run_timer_softirq+0xb7/0x180 kernel/time/timer.c:2403
 handle_softirqs+0x283/0x870 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:702
RIP: 0010:stack_trace_consume_entry+0x49/0x280 kernel/stacktrace.c:86
Code: 10 4c 89 c5 48 c1 ed 03 0f b6 44 15 00 84 c0 0f 85 09 01 00 00 44 8b 4f 10 4c 8d 77 08 4d 89 f5 49 c1 ed 03 41 0f b6 44 15 00 <84> c0 0f 85 22 01 00 00 45 3b 0e 73 3a 48 8d 5f 0c 49 89 df 49 c1
RSP: 0018:ffffc900041f7298 EFLAGS: 00000a02
RAX: 0000000000000000 RBX: ffffc900041f73a0 RCX: b6307241259b5800
RDX: dffffc0000000000 RSI: ffffffff823be59a RDI: ffffc900041f73a0
RBP: 1ffff9200083ee76 R08: ffffc900041f73b0 R09: 0000000000000002
R10: ffffc900041f7338 R11: ffffffff81abbce0 R12: ffff888020e91e40
R13: 1ffff9200083ee75 R14: ffffc900041f73a8 R15: ffffc900041f72e8
 arch_stack_walk+0x110/0x150 arch/x86/kernel/stacktrace.c:27
 stack_trace_save+0x9c/0xe0 kernel/stacktrace.c:122
 save_stack+0xf5/0x1f0 mm/page_owner.c:156
 __reset_page_owner+0x71/0x1f0 mm/page_owner.c:308
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1394 [inline]
 __free_frozen_pages+0xbc4/0xd30 mm/page_alloc.c:2906
 poll_freewait+0x1d4/0x240 fs/select.c:153
 do_select+0x172a/0x17d0 fs/select.c:608
 core_sys_select+0x6e2/0xa20 fs/select.c:677
 do_pselect fs/select.c:759 [inline]
 __do_sys_pselect6 fs/select.c:802 [inline]
 __se_sys_pselect6+0x27a/0x300 fs/select.c:793
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fde4178ec8c
Code: 29 44 24 30 80 3d eb 98 22 00 00 4c 89 4c 24 40 4c 8d 4c 24 40 48 c7 44 24 48 08 00 00 00 74 2e 4c 89 ea b8 0e 01 00 00 0f 05 <48> 3d 00 f0 ff ff 77 7c 48 8b 54 24 58 64 48 2b 14 25 28 00 00 00
RSP: 002b:00007ffcff015cf0 EFLAGS: 00000202 ORIG_RAX: 000000000000010e
RAX: ffffffffffffffda RBX: 00007ffcff015e20 RCX: 00007fde4178ec8c
RDX: 0000000000000000 RSI: 00007ffcff015e20 RDI: 0000000000000026
RBP: 00007ffcff016060 R08: 00007ffcff015d20 R09: 00007ffcff015d30
R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffcff0160c0
R13: 0000000000000000 R14: 00007ffcff016270 R15: 00007ffcff015eb0
 </TASK>