rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	0-...!: (0 ticks this GP) idle=e43c/1/0x4000000000000000 softirq=110296/110296 fqs=0
rcu: 	(detected by 1, t=10502 jiffies, g=112957, q=113 ncpus=2)
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 26875 Comm: syz.7.5630 Not tainted 6.13.0-rc3-syzkaller-00073-geabcdba3ad40 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/25/2024
RIP: 0010:debug_lockdep_rcu_enabled+0x21/0x40 kernel/rcu/update.c:321
Code: 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 31 c0 83 3d b7 b0 57 04 00 74 1e 83 3d 4a e2 57 04 00 74 15 65 48 8b 0c 25 80 d4 03 00 <31> c0 83 b9 dc 0a 00 00 00 0f 94 c0 c3 cc cc cc cc 66 2e 0f 1f 84
RSP: 0018:ffffc90000007c68 EFLAGS: 00000002
RAX: 0000000000000000 RBX: ffffffff89c5aa42 RCX: ffff888028549e00
RDX: dffffc0000000000 RSI: ffffffff8c0aa960 RDI: ffffffff8c5edb60
RBP: ffff888011ee20c8 R08: ffffffff94270887 R09: 1ffffffff284e110
R10: dffffc0000000000 R11: fffffbfff284e111 R12: dffffc0000000000
R13: ffff888011ee2008 R14: ffff888011ee2000 R15: ffff888024b97360
FS:  00005555873f9500(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fd1e50a2f98 CR3: 000000004ba0a000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 rcu_read_lock include/linux/rcupdate.h:850 [inline]
 advance_sched+0xa27/0xca0 net/sched/sch_taprio.c:985
 __run_hrtimer kernel/time/hrtimer.c:1739 [inline]
 __hrtimer_run_queues+0x59b/0xd30 kernel/time/hrtimer.c:1803
 hrtimer_interrupt+0x403/0xa40 kernel/time/hrtimer.c:1865
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1038 [inline]
 __sysvec_apic_timer_interrupt+0x110/0x420 arch/x86/kernel/apic/apic.c:1055
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline]
 sysvec_apic_timer_interrupt+0xa1/0xc0 arch/x86/kernel/apic/apic.c:1049
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline]
RIP: 0010:_raw_spin_unlock_irqrestore+0xd8/0x140 kernel/locking/spinlock.c:194
Code: 9c 8f 44 24 20 42 80 3c 23 00 74 08 4c 89 f7 e8 2e ed 3f f6 f6 44 24 21 02 75 52 41 f7 c7 00 02 00 00 74 01 fb bf 01 00 00 00 <e8> d3 26 aa f5 65 8b 05 44 79 40 74 85 c0 74 43 48 c7 04 24 0e 36
RSP: 0018:ffffc9000bf9fae0 EFLAGS: 00000206
RAX: c09abf273b6aff00 RBX: 1ffff920017f3f60 RCX: ffffffff9a377903
RDX: dffffc0000000000 RSI: ffffffff8c0a9760 RDI: 0000000000000001
RBP: ffffc9000bf9fb70 R08: ffffffff90185137 R09: 1ffffffff2030a26
R10: dffffc0000000000 R11: fffffbfff2030a27 R12: dffffc0000000000
R13: 1ffff920017f3f5c R14: ffffc9000bf9fb00 R15: 0000000000000246
 unlock_hrtimer_base kernel/time/hrtimer.c:1007 [inline]
 hrtimer_try_to_cancel+0x3b6/0x410 kernel/time/hrtimer.c:1331
 hrtimer_cancel+0x16/0x50 kernel/time/hrtimer.c:1440
 futex_wait+0x115/0x360 kernel/futex/waitwake.c:703
 do_futex+0x33b/0x560 kernel/futex/syscalls.c:102
 __do_sys_futex kernel/futex/syscalls.c:179 [inline]
 __se_sys_futex+0x3f9/0x480 kernel/futex/syscalls.c:160
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fd1e4185d29
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:00007ffcef7620e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: ffffffffffffffda RBX: 00007ffcef762210 RCX: 00007fd1e4185d29
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007fd1e4375fac
RBP: 00007fd1e4375fac R08: 7fffffffffffffff R09: 00007ffcef7623df
R10: 00007ffcef7621f0 R11: 0000000000000246 R12: 0000000000206910
R13: 00007ffcef7621f0 R14: 0000000000000032 R15: 00000000002068de
 </TASK>
rcu: rcu_preempt kthread timer wakeup didn't happen for 10501 jiffies! g112957 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402
rcu: 	Possible timer handling issue on cpu=0 timer-softirq=159403
rcu: rcu_preempt kthread starved for 10502 jiffies! g112957 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:24624 pid:17    tgid:17    ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5369 [inline]
 __schedule+0x17fb/0x4be0 kernel/sched/core.c:6756
 __schedule_loop kernel/sched/core.c:6833 [inline]
 schedule+0x14b/0x320 kernel/sched/core.c:6848
 schedule_timeout+0x15a/0x290 kernel/time/sleep_timeout.c:99
 rcu_gp_fqs_loop+0x2df/0x1330 kernel/rcu/tree.c:2045
 rcu_gp_kthread+0xa7/0x3b0 kernel/rcu/tree.c:2247
 kthread+0x2f0/0x390 kernel/kthread.c:389
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>