rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	1-...!: (0 ticks this GP) idle=b86c/1/0x4000000000000000 softirq=18657/18657 fqs=0
rcu: 	(detected by 0, t=10506 jiffies, g=11325, q=491 ncpus=2)
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 6292 Comm: syz-executor.0 Not tainted 6.15.0-rc2-syzkaller-00124-g7adf8b1afc14 #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
RIP: 0010:find_held_lock kernel/locking/lockdep.c:-1 [inline]
RIP: 0010:__lock_release kernel/locking/lockdep.c:5533 [inline]
RIP: 0010:lock_release+0x12b/0x3e0 kernel/locking/lockdep.c:5887
Code: ad f0 0a 00 00 49 63 dc 83 fb 31 0f 83 40 02 00 00 4c 8d 34 9b 4a 8d 6c f5 00 48 89 ef 4c 89 fe e8 aa 30 89 0a 44 89 64 24 0c <44> 89 e3 85 c0 74 69 48 85 ed 0f 84 a2 00 00 00 83 7d 24 00 0f 85
RSP: 0018:ffffc90004c47bf8 EFLAGS: 00000046
RAX: 0000000000000001 RBX: 0000000000000001 RCX: ffff888024ddbc00
RDX: 0000000000000000 RSI: ffffffff8f4f1a18 RDI: ffff888024ddc718
RBP: ffff888024ddc718 R08: ffffffff854d3658 R09: fffff52000988f7c
R10: dffffc0000000000 R11: fffff52000988f7c R12: 0000000000000001
R13: ffff888024ddbc00 R14: 0000000000000005 R15: ffffffff8f4f1a18
FS:  0000555563173480(0000) GS:ffff8881250cf000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fc7ced84d58 CR3: 000000003336e000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:149 [inline]
 _raw_spin_unlock_irqrestore+0x7a/0x140 kernel/locking/spinlock.c:194
 spin_unlock_irqrestore include/linux/spinlock.h:406 [inline]
 vga_put drivers/pci/vgaarb.c:553 [inline]
 vga_arb_release+0x411/0xb00 drivers/pci/vgaarb.c:1455
 __fput+0x3e9/0x9f0 fs/file_table.c:465
 fput_close_sync+0x1ef/0x270 fs/file_table.c:570
 __do_sys_close fs/open.c:1581 [inline]
 __se_sys_close fs/open.c:1566 [inline]
 __x64_sys_close+0x7f/0x110 fs/open.c:1566
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xf3/0x210 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fc7ce07ba1a
Code: 48 3d 00 f0 ff ff 77 48 c3 0f 1f 80 00 00 00 00 48 83 ec 18 89 7c 24 0c e8 03 7f 02 00 8b 7c 24 0c 89 c2 b8 03 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 36 89 d7 89 44 24 0c e8 63 7f 02 00 8b 44 24
RSP: 002b:00007fff8af3ac60 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007fc7ce07ba1a
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003
RBP: 0000000000000032 R08: 0000001b32e60000 R09: 00007fc7ce19c05c
R10: 00007fff8af3adb0 R11: 0000000000000293 R12: 00007fc7cdc00418
R13: ffffffffffffffff R14: 00007fc7cdc00000 R15: 000000000001764b
 </TASK>
rcu: rcu_preempt kthread timer wakeup didn't happen for 10505 jiffies! g11325 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402
rcu: 	Possible timer handling issue on cpu=1 timer-softirq=3513
rcu: rcu_preempt kthread starved for 10506 jiffies! g11325 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->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:I stack:26688 pid:16    tgid:16    ppid:2      task_flags:0x208040 flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5382 [inline]
 __schedule+0x1b33/0x51f0 kernel/sched/core.c:6767
 __schedule_loop kernel/sched/core.c:6845 [inline]
 schedule+0x163/0x360 kernel/sched/core.c:6860
 schedule_timeout+0x15b/0x2b0 kernel/time/sleep_timeout.c:99
 rcu_gp_fqs_loop+0x2e1/0x1340 kernel/rcu/tree.c:2046
 rcu_gp_kthread+0xa7/0x3b0 kernel/rcu/tree.c:2248
 kthread+0x7b7/0x940 kernel/kthread.c:464
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:153
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>