rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	1-...!: (1 GPs behind) idle=abf4/1/0x4000000000000000 softirq=39173/39174 fqs=6
rcu: 	(detected by 0, t=10503 jiffies, g=62905, q=183 ncpus=2)
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 12659 Comm: syz-executor.0 Not tainted 6.9.0-rc3-next-20240409-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
RIP: 0010:debug_spin_lock_before kernel/locking/spinlock_debug.c:86 [inline]
RIP: 0010:do_raw_spin_lock+0x74/0x370 kernel/locking/spinlock_debug.c:115
Code: b2 8d 48 c7 44 24 50 80 f2 73 81 48 8d 74 24 40 48 c1 ee 03 48 b8 f1 f1 f1 f1 04 f3 f3 f3 48 89 f1 48 89 74 24 38 48 89 04 16 <48> 8d 5f 04 48 89 d8 48 c1 e8 03 0f b6 04 10 84 c0 0f 85 f6 01 00
RSP: 0018:ffffc90000a18ba0 EFLAGS: 00000802
RAX: f3f3f304f1f1f1f1 RBX: ffff8880603ac036 RCX: 1ffff9200014317c
RDX: dffffc0000000000 RSI: 1ffff9200014317c RDI: ffff88805ed732e8
RBP: ffffc90000a18c80 R08: ffffffff92f6c76f R09: 1ffffffff25ed8ed
R10: dffffc0000000000 R11: fffffbfff25ed8ee R12: ffff88805ed732e8
R13: ffffffff898d5910 R14: ffff88805ed73340 R15: ffff888020c4e4c8
FS:  00007fd5a7df26c0(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f40546d66e4 CR3: 00000000643d4000 CR4: 00000000003506f0
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 spin_lock include/linux/spinlock.h:351 [inline]
 advance_sched+0xab/0xca0 net/sched/sch_taprio.c:924
 __run_hrtimer kernel/time/hrtimer.c:1692 [inline]
 __hrtimer_run_queues+0x5a5/0xd50 kernel/time/hrtimer.c:1756
 hrtimer_interrupt+0x396/0x990 kernel/time/hrtimer.c:1818
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1032 [inline]
 __sysvec_apic_timer_interrupt+0x110/0x3f0 arch/x86/kernel/apic/apic.c:1049
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline]
 sysvec_apic_timer_interrupt+0xa1/0xc0 arch/x86/kernel/apic/apic.c:1043
 </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 b2 6c 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 76 d7 f5 65 8b 05 94 87 75 74 85 c0 74 43 48 c7 04 24 0e 36
RSP: 0018:ffffc900133e78a0 EFLAGS: 00000206
RAX: 369e39de2f963900 RBX: 1ffff9200267cf18 RCX: ffffffff94764703
RDX: dffffc0000000000 RSI: ffffffff8bcad7c0 RDI: 0000000000000001
RBP: ffffc900133e7938 R08: ffffffff8fabe56f R09: 1ffffffff1f57cad
R10: dffffc0000000000 R11: fffffbfff1f57cae R12: dffffc0000000000
R13: 1ffff9200267cf14 R14: ffffc900133e78c0 R15: 0000000000000246
 spin_unlock_irqrestore include/linux/spinlock.h:406 [inline]
 timerfd_clock_was_set+0x1e0/0x2f0 fs/timerfd.c:113
 clock_was_set+0x7b0/0x830 kernel/time/hrtimer.c:983
 timekeeping_inject_offset+0x4e8/0x580 kernel/time/timekeeping.c:1396
 do_adjtimex+0x515/0xab0 kernel/time/timekeeping.c:2445
 do_clock_adjtime kernel/time/posix-timers.c:1159 [inline]
 __do_sys_clock_adjtime kernel/time/posix-timers.c:1171 [inline]
 __se_sys_clock_adjtime kernel/time/posix-timers.c:1162 [inline]
 __x64_sys_clock_adjtime+0x1e1/0x290 kernel/time/posix-timers.c:1162
 do_syscall_64+0xfb/0x240
 entry_SYSCALL_64_after_hwframe+0x72/0x7a
RIP: 0033:0x7fd5a707de69
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fd5a7df20c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000131
RAX: ffffffffffffffda RBX: 00007fd5a71ac1f0 RCX: 00007fd5a707de69
RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000000
RBP: 00007fd5a70ca47a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007fd5a71ac1f0 R15: 00007ffca9fce4c8
 </TASK>
rcu: rcu_preempt kthread starved for 10470 jiffies! g62905 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->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:R  running task     stack:25232 pid:17    tgid:17    ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5409 [inline]
 __schedule+0x17e8/0x4a50 kernel/sched/core.c:6746
 __schedule_loop kernel/sched/core.c:6823 [inline]
 schedule+0x14b/0x320 kernel/sched/core.c:6838
 schedule_timeout+0x1be/0x310 kernel/time/timer.c:2582
 rcu_gp_fqs_loop+0x2df/0x1370 kernel/rcu/tree.c:2030
 rcu_gp_kthread+0xa7/0x3b0 kernel/rcu/tree.c:2232
 kthread+0x2f0/0x390 kernel/kthread.c:388
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:243
 </TASK>
rcu: Stack dump where RCU GP kthread last ran:
CPU: 0 PID: 2899 Comm: kworker/u8:7 Not tainted 6.9.0-rc3-next-20240409-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
Workqueue: events_unbound toggle_allocation_gate
RIP: 0010:csd_lock_wait kernel/smp.c:311 [inline]
RIP: 0010:smp_call_function_many_cond+0x1894/0x2a00 kernel/smp.c:855
Code: 45 8b 65 00 44 89 e6 83 e6 01 31 ff e8 65 da 0b 00 41 83 e4 01 49 bc 00 00 00 00 00 fc ff df 75 07 e8 10 d6 0b 00 eb 38 f3 90 <42> 0f b6 04 23 84 c0 75 11 41 f7 45 00 01 00 00 00 74 1e e8 f4 d5
RSP: 0018:ffffc9000a9e76e0 EFLAGS: 00000293
RAX: ffffffff818a4f0c RBX: 1ffff110172a8861 RCX: ffff88802baf0000
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc9000a9e78e0 R08: ffffffff818a4edb R09: 1ffffffff25ed8b4
R10: dffffc0000000000 R11: fffffbfff25ed8b5 R12: dffffc0000000000
R13: ffff8880b9544308 R14: ffff8880b943f740 R15: 0000000000000001
FS:  0000000000000000(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2c226000 CR3: 000000000e134000 CR4: 00000000003506f0
Call Trace:
 <IRQ>
 </IRQ>
 <TASK>
 on_each_cpu_cond_mask+0x3f/0x80 kernel/smp.c:1023
 on_each_cpu include/linux/smp.h:71 [inline]
 text_poke_sync arch/x86/kernel/alternative.c:2086 [inline]
 text_poke_bp_batch+0x352/0xb30 arch/x86/kernel/alternative.c:2296
 text_poke_flush arch/x86/kernel/alternative.c:2487 [inline]
 text_poke_finish+0x30/0x50 arch/x86/kernel/alternative.c:2494
 arch_jump_label_transform_apply+0x1c/0x30 arch/x86/kernel/jump_label.c:146
 static_key_enable_cpuslocked+0x136/0x260 kernel/jump_label.c:205
 static_key_enable+0x1a/0x20 kernel/jump_label.c:218
 toggle_allocation_gate+0xb5/0x250 mm/kfence/core.c:826
 process_one_work kernel/workqueue.c:3218 [inline]
 process_scheduled_works+0xa2c/0x1830 kernel/workqueue.c:3299
 worker_thread+0x86d/0xd70 kernel/workqueue.c:3380
 kthread+0x2f0/0x390 kernel/kthread.c:388
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:243
 </TASK>