rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1): P10489/1:b..l
rcu: 	(detected by 0, t=10502 jiffies, g=45997, q=370 ncpus=2)
task:syz.4.1325      state:R  running task     stack:24992 pid:10489 tgid:10487 ppid:9885   flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5248 [inline]
 __schedule+0x1800/0x4a60 kernel/sched/core.c:6600
 preempt_schedule_irq+0xfb/0x1c0 kernel/sched/core.c:6922
 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_release+0x630/0x9f0 kernel/locking/lockdep.c:5840
Code: 3c 3b 00 74 08 4c 89 f7 e8 1d bc 8a 00 f6 84 24 91 00 00 00 02 75 77 41 f7 c5 00 02 00 00 74 01 fb 48 c7 44 24 60 0e 36 e0 45 <4b> c7 04 27 00 00 00 00 4b c7 44 27 08 00 00 00 00 65 48 8b 04 25
RSP: 0018:ffffc90004026ec0 EFLAGS: 00000206
RAX: 0000000000000001 RBX: 1ffff92000804dea RCX: ffffc90004026f03
RDX: 0000000000000001 RSI: ffffffff8bcada80 RDI: ffffffff8c207f20
RBP: ffffc90004026fe8 R08: ffffffff8faf7a6f R09: 1ffffffff1f5ef4d
R10: dffffc0000000000 R11: fffffbfff1f5ef4e R12: 1ffff92000804de4
R13: 0000000000000246 R14: ffffc90004026f50 R15: dffffc0000000000
 rcu_lock_release include/linux/rcupdate.h:343 [inline]
 rcu_read_unlock include/linux/rcupdate.h:876 [inline]
 percpu_ref_get_many+0xfa/0x140 include/linux/percpu-refcount.h:209
 percpu_ref_get include/linux/percpu-refcount.h:222 [inline]
 css_get include/linux/cgroup_refcnt.h:11 [inline]
 mem_cgroup_commit_charge+0xa0/0x380 mm/memcontrol.c:2389
 charge_memcg+0xb1/0x160 mm/memcontrol.c:4611
 __mem_cgroup_charge+0x27/0x80 mm/memcontrol.c:4622
 mem_cgroup_charge include/linux/memcontrol.h:671 [inline]
 shmem_alloc_and_add_folio+0x857/0x14e0 mm/shmem.c:1803
 shmem_get_folio_gfp+0xa22/0x2660 mm/shmem.c:2199
 shmem_fault+0x252/0x6f0 mm/shmem.c:2399
 __do_fault+0x135/0x460 mm/memory.c:4656
 do_read_fault mm/memory.c:5062 [inline]
 do_fault mm/memory.c:5192 [inline]
 do_pte_missing mm/memory.c:3948 [inline]
 handle_pte_fault+0x3b18/0x6eb0 mm/memory.c:5523
 __handle_mm_fault mm/memory.c:5666 [inline]
 handle_mm_fault+0x1021/0x1990 mm/memory.c:5831
 faultin_page mm/gup.c:1194 [inline]
 __get_user_pages+0x6ec/0x16a0 mm/gup.c:1493
 populate_vma_page_range+0x264/0x330 mm/gup.c:1932
 __mm_populate+0x27a/0x460 mm/gup.c:2035
 mm_populate include/linux/mm.h:3430 [inline]
 vm_mmap_pgoff+0x2c3/0x3d0 mm/util.c:593
 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: 0033:0x7f6712b75bd9
RSP: 002b:00007f6713988048 EFLAGS: 00000246 ORIG_RAX: 0000000000000009
RAX: ffffffffffffffda RBX: 00007f6712d03f60 RCX: 00007f6712b75bd9
RDX: b635773f06ebbeee RSI: 0000000000b36000 RDI: 0000000020000000
RBP: 00007f6712be4aa1 R08: ffffffffffffffff R09: 0000000000000000
R10: 0000000000008031 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f6712d03f60 R15: 00007ffe34b5a498
 </TASK>
rcu: rcu_preempt kthread starved for 10506 jiffies! g45997 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:26448 pid:17    tgid:17    ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5248 [inline]
 __schedule+0x1800/0x4a60 kernel/sched/core.c:6600
 __schedule_loop kernel/sched/core.c:6677 [inline]
 schedule+0x14b/0x320 kernel/sched/core.c:6692
 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:
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1 skipped: idling at native_safe_halt arch/x86/include/asm/irqflags.h:48 [inline]
NMI backtrace for cpu 1 skipped: idling at arch_safe_halt arch/x86/include/asm/irqflags.h:106 [inline]
NMI backtrace for cpu 1 skipped: idling at acpi_safe_halt+0x21/0x30 drivers/acpi/processor_idle.c:112