rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1): P5196/1:b..l
rcu: 	(detected by 0, t=10502 jiffies, g=12317, q=807 ncpus=2)
task:syz.1.9         state:R  running task     stack:26416 pid:5196  tgid:5194  ppid:5082   flags:0x00004006
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5408 [inline]
 __schedule+0xf15/0x5d00 kernel/sched/core.c:6745
 preempt_schedule_irq+0x51/0x90 kernel/sched/core.c:7067
 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:__sanitizer_cov_trace_pc+0x3f/0x60 kernel/kcov.c:213
Code: 01 ff 00 48 8b 34 24 74 0f f6 c4 01 74 35 8b 82 1c 16 00 00 85 c0 74 2b 8b 82 f8 15 00 00 83 f8 02 75 20 48 8b 8a 00 16 00 00 <8b> 92 fc 15 00 00 48 8b 01 48 83 c0 01 48 39 d0 73 07 48 89 01 48
RSP: 0018:ffffc900032f7ac8 EFLAGS: 00000246
RAX: 0000000000000002 RBX: 0000000000000000 RCX: ffffc9000367b000
RDX: ffff888022990000 RSI: ffffffff8ad3cde9 RDI: 0000000000000005
RBP: ffff88802e566c00 R08: 0000000000000005 R09: 0000000000000003
R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000
R13: 0000000000000001 R14: 0000000000000300 R15: dffffc0000000000
 mtree_load+0x409/0xa30 lib/maple_tree.c:6329
 vma_lookup include/linux/mm.h:3537 [inline]
 do_pages_stat_array mm/migrate.c:2331 [inline]
 do_pages_stat+0x47c/0x8e0 mm/migrate.c:2402
 kernel_move_pages+0x105c/0x19a0 mm/migrate.c:2489
 __do_sys_move_pages mm/migrate.c:2500 [inline]
 __se_sys_move_pages mm/migrate.c:2495 [inline]
 __x64_sys_move_pages+0xe0/0x1c0 mm/migrate.c:2495
 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: 0033:0x7f4bd7b75bd9
RSP: 002b:00007f4bd88e3048 EFLAGS: 00000246 ORIG_RAX: 0000000000000117
RAX: ffffffffffffffda RBX: 00007f4bd7d03f60 RCX: 00007f4bd7b75bd9
RDX: 0000000020000000 RSI: 20000000000001ab RDI: 0000000000000000
RBP: 00007f4bd7be4a98 R08: 0000000020000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f4bd7d03f60 R15: 00007ffda5531e38
 </TASK>
rcu: rcu_preempt kthread starved for 10529 jiffies! g12317 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:27680 pid:17    tgid:17    ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5408 [inline]
 __schedule+0xf15/0x5d00 kernel/sched/core.c:6745
 __schedule_loop kernel/sched/core.c:6822 [inline]
 schedule+0xe7/0x350 kernel/sched/core.c:6837
 schedule_timeout+0x136/0x2a0 kernel/time/timer.c:2581
 rcu_gp_fqs_loop+0x1eb/0xb00 kernel/rcu/tree.c:2000
 rcu_gp_kthread+0x271/0x380 kernel/rcu/tree.c:2202
 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:86 [inline]
NMI backtrace for cpu 1 skipped: idling at acpi_safe_halt+0x1a/0x20 drivers/acpi/processor_idle.c:112