rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1): P5319/2:b..l
rcu: 	(detected by 0, t=10502 jiffies, g=8229, q=588 ncpus=2)
task:syz.2.3         state:R  running task     stack:26768 pid:5319  tgid:5318  ppid:5228   flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5188 [inline]
 __schedule+0x17ae/0x4a10 kernel/sched/core.c:6529
 preempt_schedule_irq+0xfb/0x1c0 kernel/sched/core.c:6851
 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:rcu_preempt_read_exit kernel/rcu/tree_plugin.h:394 [inline]
RIP: 0010:__rcu_read_unlock+0x21/0x110 kernel/rcu/tree_plugin.h:433
Code: 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 55 41 57 41 56 41 55 41 54 53 49 bc 00 00 00 00 00 fc ff df 65 4c 8b 34 25 00 d7 03 00 <4d> 8d ae 44 04 00 00 4c 89 eb 48 c1 eb 03 42 0f b6 04 23 84 c0 75
RSP: 0018:ffffc9000428fb10 EFLAGS: 00000246
RAX: 7afd8d0e32e61200 RBX: ffff88802f29c001 RCX: ffffc9000428fa03
RDX: 0000000000000002 RSI: ffffffff8beae6a0 RDI: ffffffff8c3f94c0
RBP: 1ffff1100491fca2 R08: ffffffff8ff676af R09: 1ffffffff1feced5
R10: dffffc0000000000 R11: fffffbfff1feced6 R12: dffffc0000000000
R13: dffffc0000000000 R14: ffff888021f59e00 R15: dffffc0000000000
 rcu_read_unlock include/linux/rcupdate.h:871 [inline]
 percpu_ref_tryget_many include/linux/percpu-refcount.h:250 [inline]
 percpu_ref_tryget+0xfc/0x180 include/linux/percpu-refcount.h:266
 css_tryget include/linux/cgroup_refcnt.h:45 [inline]
 get_mem_cgroup_from_objcg+0xc8/0x150 include/linux/memcontrol.h:527
 __memcg_slab_post_alloc_hook+0x12e/0x7e0 mm/memcontrol.c:3004
 memcg_slab_post_alloc_hook mm/slub.c:2160 [inline]
 slab_post_alloc_hook mm/slub.c:3998 [inline]
 slab_alloc_node mm/slub.c:4037 [inline]
 kmem_cache_alloc_lru_noprof+0x1e6/0x2b0 mm/slub.c:4056
 alloc_inode fs/inode.c:265 [inline]
 new_inode_pseudo fs/inode.c:1038 [inline]
 new_inode+0x90/0x310 fs/inode.c:1057
 debugfs_get_inode fs/debugfs/inode.c:72 [inline]
 __debugfs_create_file+0x142/0x4b0 fs/debugfs/inode.c:425
 kvm_create_vm_debugfs virt/kvm/kvm_main.c:1102 [inline]
 kvm_create_vm virt/kvm/kvm_main.c:1239 [inline]
 kvm_dev_ioctl_create_vm virt/kvm/kvm_main.c:5498 [inline]
 kvm_dev_ioctl+0x1f86/0x2370 virt/kvm/kvm_main.c:5540
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:907 [inline]
 __se_sys_ioctl+0xfc/0x170 fs/ioctl.c:893
 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: 0033:0x7f25c8777299
RSP: 002b:00007f25c81ff048 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f25c8905f80 RCX: 00007f25c8777299
RDX: 0000000000000000 RSI: 000000000000ae01 RDI: 0000000000000004
RBP: 00007f25c87e48e6 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f25c8905f80 R15: 00007ffe8deadf68
 </TASK>
rcu: rcu_preempt kthread starved for 10522 jiffies! g8229 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:26448 pid:17    tgid:17    ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5188 [inline]
 __schedule+0x17ae/0x4a10 kernel/sched/core.c:6529
 __schedule_loop kernel/sched/core.c:6606 [inline]
 schedule+0x14b/0x320 kernel/sched/core.c:6621
 schedule_timeout+0x1be/0x310 kernel/time/timer.c:2581
 rcu_gp_fqs_loop+0x2df/0x1330 kernel/rcu/tree.c:2034
 rcu_gp_kthread+0xa7/0x3b0 kernel/rcu/tree.c:2236
 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 UID: 0 PID: 0 Comm: swapper/0 Not tainted 6.11.0-rc1-syzkaller-00004-gdc1c8034e31b #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024
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:92 [inline]
RIP: 0010:acpi_safe_halt+0x21/0x30 drivers/acpi/processor_idle.c:112
Code: 90 90 90 90 90 90 90 90 90 65 48 8b 04 25 00 d7 03 00 48 f7 00 08 00 00 00 75 10 66 90 0f 00 2d e5 4b 9c 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:ffffffff8e407ca8 EFLAGS: 00000246
RAX: ffffffff8e494680 RBX: ffff88801ba85064 RCX: 000000000004c9c1
RDX: 0000000000000001 RSI: ffff88801ba85000 RDI: ffff88801ba85064
RBP: 000000000003a678 R08: ffff8880b9237c7b R09: 1ffff11017246f8f
R10: dffffc0000000000 R11: ffffffff8bacf790 R12: ffff888019fc3800
R13: 0000000000000000 R14: 0000000000000001 R15: ffffffff8eec8ec0
FS:  0000000000000000(0000) GS:ffff8880b9200000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c3eb998 CR3: 000000007b7b6000 CR4: 00000000003526f0
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:702
 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:230 [inline]
 do_idle+0x375/0x5d0 kernel/sched/idle.c:326
 cpu_startup_entry+0x42/0x60 kernel/sched/idle.c:424
 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+0x9f/0xa0 arch/x86/kernel/head64.c:488
 common_startup_64+0x13e/0x147
 </TASK>