rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1): P5113/1:b..l
rcu: 	(detected by 0, t=10502 jiffies, g=25677, q=581 ncpus=2)
task:syz-executor.0  state:R  running task     stack:19152 pid:5113  tgid:5113  ppid:5108   flags:0x00004002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5408 [inline]
 __schedule+0x17e8/0x4a50 kernel/sched/core.c:6745
 preempt_schedule_irq+0xfb/0x1c0 kernel/sched/core.c:7067
 irqentry_exit+0x5e/0x90 kernel/entry/common.c:354
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:fast_dput+0x2e/0x420 fs/dcache.c:760
Code: 56 41 55 41 54 53 50 49 89 fc e8 1d da 82 ff 4d 8d b4 24 98 00 00 00 4c 89 f7 e8 cd 0b 99 02 89 c5 31 ff 89 c6 e8 42 de 82 ff <85> ed 0f 88 c0 01 00 00 31 ff 89 ee e8 31 de 82 ff 85 ed 74 0a e8
RSP: 0018:ffffc90003427d60 EFLAGS: 00000293
RAX: 0000000000000000 RBX: ffff888023b8d780 RCX: ffff88807cb00000
RDX: ffff88807cb00000 RSI: 00000000ffffffff RDI: 0000000000000000
RBP: 00000000ffffffff R08: ffffffff82138c5e R09: 1ffffffff25f70b0
R10: dffffc0000000000 R11: fffffbfff25f70b1 R12: ffff888023b8d780
R13: 0000000000000000 R14: ffff888023b8d818 R15: ffffc90003427e01
 dput+0xe8/0x2b0 fs/dcache.c:839
 do_rmdir+0x3c0/0x580 fs/namei.c:4275
 __do_sys_unlinkat fs/namei.c:4449 [inline]
 __se_sys_unlinkat fs/namei.c:4443 [inline]
 __x64_sys_unlinkat+0xe0/0xf0 fs/namei.c:4443
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f785a07c6c7
RSP: 002b:00007fff71a40b68 EFLAGS: 00000207 ORIG_RAX: 0000000000000107
RAX: ffffffffffffffda RBX: 0000000000000065 RCX: 00007f785a07c6c7
RDX: 0000000000000200 RSI: 00007fff71a41ce0 RDI: 00000000ffffff9c
RBP: 00007f785a0c8336 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000100 R11: 0000000000000207 R12: 00007fff71a41ce0
R13: 00007f785a0c8336 R14: 000000000002f26c R15: 0000000000000006
 </TASK>
rcu: rcu_preempt kthread starved for 10187 jiffies! g25677 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:26320 pid:17    tgid:17    ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5408 [inline]
 __schedule+0x17e8/0x4a50 kernel/sched/core.c:6745
 __schedule_loop kernel/sched/core.c:6822 [inline]
 schedule+0x14b/0x320 kernel/sched/core.c:6837
 schedule_timeout+0x1be/0x310 kernel/time/timer.c:2581
 rcu_gp_fqs_loop+0x2df/0x1370 kernel/rcu/tree.c:2000
 rcu_gp_kthread+0xa7/0x3b0 kernel/rcu/tree.c:2202
 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>
rcu: Stack dump where RCU GP kthread last ran:
CPU: 0 PID: 0 Comm: swapper/0 Not tainted 6.9.0-next-20240517-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
RIP: 0010:native_irq_disable arch/x86/include/asm/irqflags.h:37 [inline]
RIP: 0010:arch_local_irq_disable arch/x86/include/asm/irqflags.h:72 [inline]
RIP: 0010:acpi_safe_halt+0x21/0x30 drivers/acpi/processor_idle.c:113
Code: 90 90 90 90 90 90 90 90 90 65 48 8b 04 25 00 d5 03 00 48 f7 00 08 00 00 00 75 10 66 90 0f 00 2d 85 f8 9d 00 f3 0f 1e fa fb f4 <fa> c3 cc cc cc cc 66 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90
RSP: 0018:ffffffff8e007ca8 EFLAGS: 00000246
RAX: ffffffff8e094680 RBX: ffff8880176cf864 RCX: 0000000000053501
RDX: 0000000000000001 RSI: ffff8880176cf800 RDI: ffff8880176cf864
RBP: 000000000003a5b8 R08: ffff8880b9437d0b R09: 1ffff11017286fa1
R10: dffffc0000000000 R11: ffffffff8b8b7af0 R12: ffff88801bf0e000
R13: 0000000000000000 R14: 0000000000000001 R15: ffffffff8eace100
FS:  0000000000000000(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000555561352978 CR3: 00000000115aa000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 </IRQ>
 <TASK>
 acpi_idle_enter+0xe4/0x140 drivers/acpi/processor_idle.c:707
 cpuidle_enter_state+0x112/0x480 drivers/cpuidle/cpuidle.c:267
 cpuidle_enter+0x5d/0xa0 drivers/cpuidle/cpuidle.c:388
 call_cpuidle kernel/sched/idle.c:155 [inline]
 cpuidle_idle_call kernel/sched/idle.c:236 [inline]
 do_idle+0x375/0x5d0 kernel/sched/idle.c:332
 cpu_startup_entry+0x42/0x60 kernel/sched/idle.c:430
 rest_init+0x2dc/0x300 init/main.c:747
 start_kernel+0x47a/0x500 init/main.c:1103
 x86_64_start_reservations+0x2a/0x30 arch/x86/kernel/head64.c:507
 x86_64_start_kernel+0x99/0xa0 arch/x86/kernel/head64.c:488
 common_startup_64+0x13e/0x147
 </TASK>