rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1): P20006/1:b..l
rcu: 	(detected by 0, t=10502 jiffies, g=73033, q=17097 ncpus=2)
task:syz.6.848       state:R  running task     stack:25208 pid:20006 tgid:20005 ppid:17617  task_flags:0x40054c flags:0x00080003
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5387 [inline]
 __schedule+0x1681/0x54c0 kernel/sched/core.c:7188
 preempt_schedule_irq+0x4d/0xa0 kernel/sched/core.c:7512
 irqentry_exit_to_kernel_mode include/linux/irq-entry-common.h:547 [inline]
 irqentry_exit+0x14f/0x730 kernel/entry/common.c:164
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697
RIP: 0010:native_save_fl arch/x86/include/asm/irqflags.h:26 [inline]
RIP: 0010:arch_local_save_flags arch/x86/include/asm/irqflags.h:109 [inline]
RIP: 0010:__might_resched+0xb7/0x480 kernel/sched/core.c:9126
Code: 4d 8d a6 c4 04 00 00 4d 89 e7 49 c1 ef 03 41 0f b6 04 2f 84 c0 0f 85 9b 02 00 00 41 8b 04 24 c1 e0 08 44 01 e8 39 d8 75 48 9c <58> a9 00 02 00 00 74 3f 4d 8d 6e 2c 4c 89 e8 48 c1 e8 03 0f b6 04
RSP: 0018:ffffc90004ddf820 EFLAGS: 00000246
RAX: 0000000000000100 RBX: 0000000000000100 RCX: 0000000000000046
RDX: 0000000000000100 RSI: ffffffff8d897de3 RDI: ffffffff8ba73e60
RBP: dffffc0000000000 R08: ffffffff84f15abb R09: ffffffff8e7aa9f8
R10: dffffc0000000000 R11: fffffbfff1f1795f R12: ffff88803918c244
R13: 0000000000000000 R14: ffff88803918bd80 R15: 1ffff11007231848
 __rt_spin_lock kernel/locking/spinlock_rt.c:48 [inline]
 rt_spin_lock+0xc2/0x400 kernel/locking/spinlock_rt.c:57
 spin_lock include/linux/spinlock_rt.h:45 [inline]
 vga_put drivers/pci/vgaarb.c:556 [inline]
 vga_arb_release+0x1fb/0x5c0 drivers/pci/vgaarb.c:1439
 __fput+0x461/0xa70 fs/file_table.c:510
 task_work_run+0x1d9/0x270 kernel/task_work.c:233
 exit_task_work include/linux/task_work.h:40 [inline]
 do_exit+0x70f/0x22c0 kernel/exit.c:975
 do_group_exit+0x21b/0x2d0 kernel/exit.c:1117
 get_signal+0x125c/0x1310 kernel/signal.c:3037
 arch_do_signal_or_restart+0xbc/0x830 arch/x86/kernel/signal.c:337
 __exit_to_user_mode_loop kernel/entry/common.c:64 [inline]
 exit_to_user_mode_loop+0x86/0x480 kernel/entry/common.c:98
 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline]
 syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:238 [inline]
 syscall_exit_to_user_mode include/linux/entry-common.h:318 [inline]
 do_syscall_64+0x33e/0xf80 arch/x86/entry/syscall_64.c:100
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f9000e4d04e
RSP: 002b:00007f8fff0e5da8 EFLAGS: 00000246 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 00007f8fff0e66c0 RCX: 00007f9000e4d04e
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000007
RBP: 0000000000000010 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000007
R13: 00007f8fff0e5ee0 R14: 00007f8fff0e5ea0 R15: 00007f8ff6ca5000
 </TASK>