rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	(detected by 0, t=10502 jiffies, g=5949, q=9 ncpus=2)
rcu: All QSes seen, last rcu_preempt kthread activity 10503 (4294961657-4294951154), jiffies_till_next_fqs=1, root ->qsmask 0x0
rcu: rcu_preempt kthread starved for 10504 jiffies! g5949 f0x2 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:29088 pid:17    tgid:17    ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5376 [inline]
 __schedule+0xedb/0x5af0 kernel/sched/core.c:6688
 __schedule_loop kernel/sched/core.c:6763 [inline]
 schedule+0xe9/0x270 kernel/sched/core.c:6778
 schedule_timeout+0x137/0x290 kernel/time/timer.c:2167
 rcu_gp_fqs_loop+0x1ec/0xb10 kernel/rcu/tree.c:1631
 rcu_gp_kthread+0x24b/0x380 kernel/rcu/tree.c:1830
 kthread+0x2c6/0x3a0 kernel/kthread.c:388
 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242
 </TASK>
rcu: Stack dump where RCU GP kthread last ran:
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 5227 Comm: syz-executor350 Not tainted 6.7.0-rc5-syzkaller-00047-g5bd7ef53ffe5 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023
RIP: 0010:lockdep_hardirqs_on_prepare kernel/locking/lockdep.c:4356 [inline]
RIP: 0010:lockdep_hardirqs_on_prepare+0xda/0x420 kernel/locking/lockdep.c:4311
Code: 84 e3 00 00 00 65 48 8b 1c 25 c0 bc 03 00 48 8d bb b0 0a 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 <0f> 85 ea 02 00 00 48 8d bb 98 0a 00 00 48 8b ab b0 0a 00 00 48 b8
RSP: 0018:ffffc90004747dd8 EFLAGS: 00000046
RAX: dffffc0000000000 RBX: ffff88801e043b80 RCX: 1ffffffff1e32231
RDX: 1ffff11003c088c6 RSI: 0000000000000000 RDI: ffff88801e044630
RBP: ffffffff8130d599 R08: 0000000000000000 R09: 0000000000000001
R10: ffffffff8f194417 R11: 0000000000000000 R12: ffffc90004747e38
R13: 0000000000000000 R14: 0000000000000000 R15: ffff88801e043b80
FS:  00005555564c33c0(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f6c0206e4c0 CR3: 00000000510a0000 CR4: 0000000000350ef0
Call Trace:
 <NMI>
 </NMI>
 <TASK>
 trace_hardirqs_on+0x36/0x40 kernel/trace/trace_preemptirq.c:61
 __local_bh_enable_ip+0xa4/0x120 kernel/softirq.c:386
 handle_signal arch/x86/kernel/signal.c:282 [inline]
 arch_do_signal_or_restart+0x5bf/0x7f0 arch/x86/kernel/signal.c:311
 exit_to_user_mode_loop kernel/entry/common.c:168 [inline]
 exit_to_user_mode_prepare+0x121/0x240 kernel/entry/common.c:204
 __syscall_exit_to_user_mode_work kernel/entry/common.c:285 [inline]
 syscall_exit_to_user_mode+0x1e/0x60 kernel/entry/common.c:296
 do_syscall_64+0x4d/0x110 arch/x86/entry/common.c:89
 entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7f6c0207ce40
Code: 83 c0 16 83 e0 f7 74 12 50 48 8d 3d 8a 27 03 00 e8 05 0d fb ff 0f 1f 44 00 00 c3 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 <83> ff 21 74 0b c3 66 2e 0f 1f 84 00 00 00 00 00 55 53 48 89 f3 48
RSP: 002b:00007ffc8a522578 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 0000000000000003 RCX: 00007f6c02056e79
RDX: 00007ffc8a522580 RSI: 00007ffc8a5226b0 RDI: 0000000000000021
RBP: 00000000000f4240 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000020ee0
R13: 00007ffc8a522b58 R14: 00007ffc8a522bb0 R15: 00007ffc8a522ba0
 </TASK>