rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1): P10213/1:b..l
rcu: 	(detected by 0, t=10502 jiffies, g=103729, q=853 ncpus=2)
task:syz.0.732       state:R  running task     stack:27024 pid:10213 tgid:10213 ppid:9972   flags:0x00000000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5188 [inline]
 __schedule+0xe37/0x5490 kernel/sched/core.c:6529
 preempt_schedule_irq+0x51/0x90 kernel/sched/core.c:6851
 irqentry_exit+0x36/0x90 kernel/entry/common.c:354
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:lock_release+0x3e5/0x6f0 kernel/locking/lockdep.c:5767
Code: 7e 83 f8 01 0f 85 fd 01 00 00 9c 58 f6 c4 02 0f 85 e8 01 00 00 48 f7 04 24 00 02 00 00 74 01 fb 48 b8 00 00 00 00 00 fc ff df <48> 01 c3 48 c7 03 00 00 00 00 c7 43 08 00 00 00 00 48 8b 84 24 88
RSP: 0018:ffffc9000345f8c0 EFLAGS: 00000206
RAX: dffffc0000000000 RBX: 1ffff9200068bf1a RCX: ffffc9000345f910
RDX: 1ffff110050ffc9a RSI: ffffffff8b4cc880 RDI: ffffffff8bb08c00
RBP: ffffffffffffffff R08: 0000000000000000 R09: fffffbfff20253fb
R10: ffffffff90129fdf R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000001 R14: ffff8880287fe4d8 R15: ffff8880287fda00
 rcu_lock_release include/linux/rcupdate.h:336 [inline]
 rcu_read_unlock+0x1c/0x60 include/linux/rcupdate.h:869
 percpu_ref_put_many include/linux/percpu-refcount.h:337 [inline]
 percpu_ref_put include/linux/percpu-refcount.h:351 [inline]
 css_put include/linux/cgroup_refcnt.h:79 [inline]
 css_put include/linux/cgroup_refcnt.h:76 [inline]
 obj_cgroup_charge_pages mm/memcontrol.c:2667 [inline]
 __memcg_kmem_charge_page+0x18b/0x420 mm/memcontrol.c:2687
 memcg_kmem_charge_page include/linux/memcontrol.h:1700 [inline]
 memcg_charge_kernel_stack kernel/fork.c:264 [inline]
 memcg_charge_kernel_stack+0xc3/0x1f0 kernel/fork.c:255
 alloc_thread_stack_node kernel/fork.c:322 [inline]
 dup_task_struct kernel/fork.c:1113 [inline]
 copy_process+0x2f66/0x8de0 kernel/fork.c:2204
 kernel_clone+0xfd/0x980 kernel/fork.c:2781
 __do_sys_clone3+0x1f5/0x270 kernel/fork.c:3085
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f11d6ba9ee9
RSP: 002b:00007ffefa991eb8 EFLAGS: 00000202 ORIG_RAX: 00000000000001b3
RAX: ffffffffffffffda RBX: 00007f11d6b2c910 RCX: 00007f11d6ba9ee9
RDX: 00007f11d6b2c910 RSI: 0000000000000058 RDI: 00007ffefa991f00
RBP: 00007f11d79676c0 R08: 00007f11d79676c0 R09: 00007ffefa991fe7
R10: 0000000000000008 R11: 0000000000000202 R12: ffffffffffffffa8
R13: 000000000000000b R14: 00007ffefa991f00 R15: 00007ffefa991fe8
 </TASK>
rcu: rcu_preempt kthread starved for 10528 jiffies! g103729 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:27872 pid:17    tgid:17    ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5188 [inline]
 __schedule+0xe37/0x5490 kernel/sched/core.c:6529
 preempt_schedule_irq+0x51/0x90 kernel/sched/core.c:6851
 irqentry_exit+0x36/0x90 kernel/entry/common.c:354
 asm_sysvec_reschedule_ipi+0x1a/0x20 arch/x86/include/asm/idtentry.h:707
RIP: 0010:__free_object+0x0/0xcb0 lib/debugobjects.c:337
Code: e8 55 ea 5e fd 48 8b 4c 24 18 e9 a8 fe ff ff 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 <41> 57 41 56 41 55 41 54 55 53 48 89 fb 48 81 ec 18 01 00 00 48 c7
RSP: 0018:ffffc90000167b28 EFLAGS: 00000286
RAX: 0000000080000000 RBX: ffff88807bc119a0 RCX: 0000000000000000
RDX: 0000000000000001 RSI: ffffffff8b4cc580 RDI: ffff88807bc119a0
RBP: ffffc90000167c18 R08: 0000000000000001 R09: 0000000000000001
R10: ffffffff90129fdf R11: 0000000000000000 R12: 0000000000000000
R13: ffffffff9505b7e8 R14: ffffc90000167c48 R15: 1ffff9200002cf6a
 free_object lib/debugobjects.c:424 [inline]
 debug_object_free+0x299/0x500 lib/debugobjects.c:867
 destroy_timer_on_stack kernel/time/timer.c:866 [inline]
 schedule_timeout+0x14f/0x2a0 kernel/time/timer.c:2585
 rcu_gp_fqs_loop+0x1eb/0xb00 kernel/rcu/tree.c:2034
 rcu_gp_kthread+0x271/0x380 kernel/rcu/tree.c:2236
 kthread+0x2c1/0x3a0 kernel/kthread.c:389
 ret_from_fork+0x45/0x80 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+0x1a/0x20 drivers/acpi/processor_idle.c:111