rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1): P9508/1:b..l
rcu: 	(detected by 1, t=10502 jiffies, g=64069, q=674 ncpus=2)
task:syz-executor.4  state:R  running task     stack:20288 pid:9508  tgid:9508  ppid:9495   flags:0x00004002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5408 [inline]
 __schedule+0x1796/0x49d0 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:lock_acquire+0x264/0x550 kernel/locking/lockdep.c:5758
Code: 2b 00 74 08 4c 89 f7 e8 0a 22 86 00 f6 44 24 61 02 0f 85 85 01 00 00 41 f7 c7 00 02 00 00 74 01 fb 48 c7 44 24 40 0e 36 e0 45 <4b> c7 44 25 00 00 00 00 00 43 c7 44 25 09 00 00 00 00 43 c7 44 25
RSP: 0018:ffffc90004887700 EFLAGS: 00000206
RAX: 0000000000000001 RBX: 1ffff92000910eec RCX: 0000000000000001
RDX: dffffc0000000000 RSI: ffffffff8bcacd00 RDI: ffffffff8c1f12c0
RBP: ffffc90004887860 R08: ffffffff92f6e587 R09: 1ffffffff25edcb0
R10: dffffc0000000000 R11: fffffbfff25edcb1 R12: 1ffff92000910ee8
R13: dffffc0000000000 R14: ffffc90004887760 R15: 0000000000000246
 rcu_lock_acquire include/linux/rcupdate.h:329 [inline]
 rcu_read_lock include/linux/rcupdate.h:781 [inline]
 jbd2_write_access_granted+0x8e/0x310 fs/jbd2/transaction.c:1188
 jbd2_journal_get_write_access+0x1c6/0x240 fs/jbd2/transaction.c:1253
 __ext4_journal_get_write_access+0x1c8/0x680 fs/ext4/ext4_jbd2.c:239
 ext4_reserve_inode_write+0x271/0x360 fs/ext4/inode.c:5724
 ext4_orphan_del+0x28a/0xc60 fs/ext4/orphan.c:250
 ext4_evict_inode+0xb73/0xf50 fs/ext4/inode.c:289
 evict+0x2a8/0x630 fs/inode.c:667
 d_delete_notify include/linux/fsnotify.h:326 [inline]
 vfs_rmdir+0x3d7/0x510 fs/namei.c:4227
 do_rmdir+0x3b5/0x580 fs/namei.c:4273
 __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+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fc67207c707
RSP: 002b:00007ffff9314198 EFLAGS: 00000207 ORIG_RAX: 0000000000000107
RAX: ffffffffffffffda RBX: 0000000000000065 RCX: 00007fc67207c707
RDX: 0000000000000200 RSI: 00007ffff9315340 RDI: 00000000ffffff9c
RBP: 00007fc6720d96c6 R08: 00005555914b899b R09: 0000000000000000
R10: 0000000000001000 R11: 0000000000000207 R12: 00007ffff9315340
R13: 00007fc6720d96c6 R14: 0000000000081e5d R15: 000000000000000e
 </TASK>
rcu: rcu_preempt kthread starved for 10538 jiffies! g64069 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1
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:23944 pid:17    tgid:17    ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5408 [inline]
 __schedule+0x1796/0x49d0 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/0x1330 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: 1 PID: 0 Comm: swapper/1 Not tainted 6.10.0-rc4-syzkaller-00148-g50736169ecc8 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
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 80 d4 03 00 48 f7 00 08 00 00 00 75 10 66 90 0f 00 2d 55 73 ab 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:ffffc900001a7d08 EFLAGS: 00000246
RAX: ffff8880176e0000 RBX: ffff88801c2d9064 RCX: 0000000000b2e6c9
RDX: 0000000000000001 RSI: ffff88801c2d9000 RDI: ffff88801c2d9064
RBP: 000000000003a538 R08: ffff8880b9537ccb R09: 1ffff110172a6f99
R10: dffffc0000000000 R11: ffffffff8b7d2ac0 R12: ffff88801c768000
R13: 0000000000000000 R14: 0000000000000001 R15: ffffffff8eabb360
FS:  0000000000000000(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffa2fda4a28 CR3: 0000000011348000 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
 start_secondary+0x100/0x100 arch/x86/kernel/smpboot.c:313
 common_startup_64+0x13e/0x147
 </TASK>