rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1): P9853/1:b..l
rcu: 	(detected by 1, t=10502 jiffies, g=61621, q=612 ncpus=2)
task:syz.3.999       state:R  running task     stack:23888 pid:9853  tgid:9851  ppid:7936   flags:0x00004006
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:page_ext_next include/linux/page_ext.h:92 [inline]
RIP: 0010:__update_page_owner_free_handle mm/page_owner.c:278 [inline]
RIP: 0010:__reset_page_owner+0x20f/0x430 mm/page_owner.c:298
Code: b6 04 28 84 c0 75 73 8b 2b 49 83 c6 3c 4c 89 f0 48 c1 e8 03 42 0f b6 04 28 84 c0 75 76 41 89 2e 48 8b 44 24 38 42 80 3c 28 00 <0f> 84 e8 fe ff ff 48 c7 c7 a0 aa 16 9a e8 0f c2 f5 ff e9 d7 fe ff
RSP: 0018:ffffc90003577008 EFLAGS: 00000246
RAX: 1ffffffff342d554 RBX: ffff888027a541cc RCX: dffffc0000000000
RDX: ffff888027a541c8 RSI: 0000000000000008 RDI: ffff88801d190780
RBP: 000000000000267b R08: ffff88801d190787 R09: 1ffff11003a320f0
R10: dffffc0000000000 R11: ffffed1003a320f1 R12: 0000000000000000
R13: dffffc0000000000 R14: ffff88801d1907c4 R15: ffff88801d190780
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1101 [inline]
 free_unref_folios+0x100f/0x1ac0 mm/page_alloc.c:2667
 folios_put_refs+0x76e/0x860 mm/swap.c:1039
 folio_batch_release include/linux/pagevec.h:101 [inline]
 shmem_undo_range+0x6de/0x1df0 mm/shmem.c:1023
 shmem_truncate_range mm/shmem.c:1132 [inline]
 shmem_evict_inode+0x29b/0xa80 mm/shmem.c:1260
 evict+0x532/0x950 fs/inode.c:704
 __dentry_kill+0x20d/0x630 fs/dcache.c:615
 dput+0x19f/0x2b0 fs/dcache.c:857
 __fput+0x5f8/0x8a0 fs/file_table.c:430
 task_work_run+0x24f/0x310 kernel/task_work.c:228
 exit_task_work include/linux/task_work.h:40 [inline]
 do_exit+0xa2f/0x27f0 kernel/exit.c:882
 do_group_exit+0x207/0x2c0 kernel/exit.c:1031
 get_signal+0x16a1/0x1740 kernel/signal.c:2917
 arch_do_signal_or_restart+0x96/0x860 arch/x86/kernel/signal.c:310
 exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
 exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
 __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
 syscall_exit_to_user_mode+0xc9/0x370 kernel/entry/common.c:218
 do_syscall_64+0x100/0x230 arch/x86/entry/common.c:89
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f098877def9
RSP: 002b:00007f09894d8038 EFLAGS: 00000246 ORIG_RAX: 0000000000000133
RAX: 000000000000000b RBX: 00007f0988935f80 RCX: 00007f098877def9
RDX: 0000000000000651 RSI: 0000000020000000 RDI: 0000000000000007
RBP: 00007f09887f0b56 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f0988935f80 R15: 00007fff5d3f4cb8
 </TASK>
rcu: rcu_preempt kthread starved for 10548 jiffies! g61621 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:25552 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: 1 UID: 0 PID: 0 Comm: swapper/1 Not tainted 6.11.0-rc7-syzkaller-00020-g8d8d276ba2fb #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
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 c0 d6 03 00 48 f7 00 08 00 00 00 75 10 66 90 0f 00 2d b5 2f 98 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: ffff88801cef0000 RBX: ffff888020697864 RCX: 0000000004e234d9
RDX: 0000000000000001 RSI: ffff888020697800 RDI: ffff888020697864
RBP: 000000000003a638 R08: ffff8880b8937c7b R09: 1ffff11017126f8f
R10: dffffc0000000000 R11: ffffffff8bb13cc0 R12: ffff888021fa8000
R13: 0000000000000000 R14: 0000000000000001 R15: ffffffff8eed1d40
FS:  0000000000000000(0000) GS:ffff8880b8900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005555931f25c8 CR3: 000000002424e000 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: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
 start_secondary+0x100/0x100 arch/x86/kernel/smpboot.c:313
 common_startup_64+0x13e/0x147
 </TASK>