rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	1-...!: (10520 ticks this GP) idle=b534/1/0x4000000000000000 softirq=30417/30419 fqs=5
	(t=10501 jiffies g=49489 q=17 ncpus=2)
rcu: rcu_preempt kthread starved for 10492 jiffies! g49489 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0
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:26680 pid:16    ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5245 [inline]
 __schedule+0x142d/0x4550 kernel/sched/core.c:6558
 preempt_schedule_irq+0xf7/0x1c0 kernel/sched/core.c:6870
 irqentry_exit+0x53/0x80 kernel/entry/common.c:439
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:653
RIP: 0010:schedule+0xae/0x180 kernel/sched/core.c:6633
Code: e8 b7 cb 4e f7 49 8b 3e 48 85 ff 74 0a be 01 00 00 00 e8 a5 c1 87 f9 4c 89 e3 48 c1 eb 03 eb 0a 49 f7 04 24 08 00 00 00 74 39 <bf> 01 00 00 00 e8 48 19 cb f6 31 ff e8 f1 b9 ff ff bf 01 00 00 00
RSP: 0018:ffffc90000157b98 EFLAGS: 00000202
RAX: 0000000000000001 RBX: 1ffff11027fdbb28 RCX: ffffffff8a933926
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffff88813fedd940
RBP: ffffc90000157cb0 R08: dffffc0000000000 R09: ffffed1027fdbb29
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88813fedd940
R13: 1ffff9200002af78 R14: ffff88813fedebb8 R15: dffffc0000000000
 schedule_timeout+0x1b9/0x300 kernel/time/timer.c:1965
 rcu_gp_fqs_loop+0x2d2/0x1150 kernel/rcu/tree.c:1706
 rcu_gp_kthread+0xa3/0x3b0 kernel/rcu/tree.c:1905
 kthread+0x28d/0x320 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
 </TASK>
rcu: Stack dump where RCU GP kthread last ran:
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 9543 Comm: syz-executor.0 Not tainted 6.1.90-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
RIP: 0010:native_save_fl arch/x86/include/asm/irqflags.h:29 [inline]
RIP: 0010:arch_local_save_flags arch/x86/include/asm/irqflags.h:70 [inline]
RIP: 0010:arch_local_irq_save arch/x86/include/asm/irqflags.h:106 [inline]
RIP: 0010:lock_is_held_type+0x62/0x180 kernel/locking/lockdep.c:5701
Code: 85 f1 00 00 00 65 4c 8b 2d 8b b4 77 75 41 83 bd dc 0a 00 00 00 0f 85 db 00 00 00 41 89 f6 49 89 ff 48 c7 04 24 00 00 00 00 9c <8f> 04 24 4c 8b 24 24 fa 48 c7 c7 a0 0e ec 8a e8 9a 16 00 00 65 ff
RSP: 0018:ffffc9000446f9d0 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 0000000000000004 RCX: ffff88807aa3bb80
RDX: 0000000000000000 RSI: 00000000ffffffff RDI: ffffffff8d12ace0
RBP: 00000000ffffffff R08: ffffffff8156b9c2 R09: ffffed100f547771
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000
R13: ffff88807aa3bb80 R14: 00000000ffffffff R15: ffffffff8d12ace0
FS:  00007f57707ac6c0(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b3353c000 CR3: 000000006351e000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <TASK>
 lock_is_held include/linux/lockdep.h:283 [inline]
 __might_resched+0xa1/0x780 kernel/sched/core.c:9904
 try_to_freeze include/linux/freezer.h:53 [inline]
 get_signal+0x192/0x17d0 kernel/signal.c:2652
 arch_do_signal_or_restart+0xb0/0x1a10 arch/x86/kernel/signal.c:871
 exit_to_user_mode_loop+0x6a/0x100 kernel/entry/common.c:174
 exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:210
 __syscall_exit_to_user_mode_work kernel/entry/common.c:292 [inline]
 syscall_exit_to_user_mode+0x60/0x270 kernel/entry/common.c:303
 do_syscall_64+0x47/0xb0 arch/x86/entry/common.c:87
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f576fa7dd69
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f57707ac178 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 00007f576fbac058 RCX: 00007f576fa7dd69
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f576fbac058
RBP: 00007f576fbac050 R08: 00007f57707ac6c0 R09: 00007f57707ac6c0
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f576fbac05c
R13: 000000000000006e R14: 00007ffcef222240 R15: 00007ffcef222328
 </TASK>
CPU: 1 PID: 9542 Comm: syz-executor.3 Not tainted 6.1.90-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
RIP: 0010:finish_task_switch+0x1d3/0x810 kernel/sched/core.c:5124
Code: 37 0b 00 48 83 c4 08 4c 89 f7 e8 98 30 00 00 0f 1f 44 00 00 4c 89 f7 e8 7b d0 35 09 e8 36 26 32 00 fb 49 8d bc 24 f8 15 00 00 <48> 89 f8 48 c1 e8 03 49 bd 00 00 00 00 00 fc ff df 42 0f b6 04 28
RSP: 0018:ffffc900034af8a8 EFLAGS: 00000286
RAX: e18e901c8537bb00 RBX: ffff888074f21df4 RCX: ffffffff91c93103
RDX: dffffc0000000000 RSI: ffffffff8aec01c0 RDI: ffff88804f38b3b8
RBP: ffffc900034af8f0 R08: dffffc0000000000 R09: ffffed1017327541
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88804f389dc0
R13: 1ffff110173276eb R14: ffff8880b993aa00 R15: ffff8880b993b758
FS:  00007f9ec0bac6c0(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b3352b000 CR3: 00000000560f6000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 </IRQ>
 <TASK>
 context_switch kernel/sched/core.c:5248 [inline]
 __schedule+0x1435/0x4550 kernel/sched/core.c:6558
 schedule+0xbf/0x180 kernel/sched/core.c:6634
 futex_wait_queue+0x149/0x1d0 kernel/futex/waitwake.c:355
 futex_wait+0x203/0x5c0 kernel/futex/waitwake.c:656
 do_futex+0x3b5/0x490 kernel/futex/syscalls.c:106
 __do_sys_futex kernel/futex/syscalls.c:183 [inline]
 __se_sys_futex+0x3d7/0x460 kernel/futex/syscalls.c:164
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f9ebfe7dd69
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f9ec0bac178 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: ffffffffffffffda RBX: 00007f9ebffac058 RCX: 00007f9ebfe7dd69
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f9ebffac058
RBP: 00007f9ebffac050 R08: 00007f9ec0bac6c0 R09: 00007f9ec0bac6c0
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f9ebffac05c
R13: 000000000000006e R14: 00007fff744de110 R15: 00007fff744de1f8
 </TASK>