rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	(detected by 1, t=10502 jiffies, g=10001, q=1205 ncpus=2)
rcu: All QSes seen, last rcu_preempt kthread activity 10498 (4294957171-4294946673), jiffies_till_next_fqs=1, root ->qsmask 0x0
rcu: rcu_preempt kthread starved for 10498 jiffies! g10001 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:26440 pid:17    tgid:17    ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5376 [inline]
 __schedule+0x19aa/0x4aa0 kernel/sched/core.c:6688
 __schedule_loop kernel/sched/core.c:6763 [inline]
 schedule+0x145/0x250 kernel/sched/core.c:6778
 schedule_timeout+0x1b9/0x300 kernel/time/timer.c:2167
 rcu_gp_fqs_loop+0x306/0x14f0 kernel/rcu/tree.c:1631
 rcu_gp_kthread+0xa3/0x3a0 kernel/rcu/tree.c:1830
 kthread+0x2cf/0x360 kernel/kthread.c:388
 ret_from_fork+0x44/0x70 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:
CPU: 1 PID: 5678 Comm: syz-executor.4 Not tainted 6.7.0-rc7-syzkaller-gf5837722ffec #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023
RIP: 0010:__raw_spin_unlock_irq include/linux/spinlock_api_smp.h:160 [inline]
RIP: 0010:_raw_spin_unlock_irq+0x25/0x40 kernel/locking/spinlock.c:202
Code: 61 81 f5 ff 90 53 48 89 fb 48 83 c7 18 48 8b 74 24 08 e8 be 1a 92 f6 48 89 df e8 76 09 93 f6 e8 51 98 b9 f6 fb bf 01 00 00 00 <e8> b6 31 85 f6 65 8b 05 a7 9a 28 75 85 c0 74 02 5b c3 e8 b4 6d 25
RSP: 0018:ffffc9000a02fc50 EFLAGS: 00000282
RAX: c0cfea0879035f00 RBX: ffff888026f6e5c0 RCX: ffffffff91f0c303
RDX: dffffc0000000000 RSI: ffffffff8b0c1640 RDI: 0000000000000001
RBP: ffffc9000a02fd90 R08: ffffffff8e9b942f R09: 1ffffffff1d37285
R10: dffffc0000000000 R11: fffffbfff1d37286 R12: 1ffff11004dedd4b
R13: 000000001c000004 R14: 0000000000000021 R15: ffff888026f6ea58
FS:  00007fa64cf0f6c0(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fa64cf0ef00 CR3: 000000002579f000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 </IRQ>
 <TASK>
 spin_unlock_irq include/linux/spinlock.h:401 [inline]
 get_signal+0x1565/0x1840 kernel/signal.c:2907
 arch_do_signal_or_restart+0x92/0x800 arch/x86/kernel/signal.c:309
 exit_to_user_mode_loop+0x6a/0x100 kernel/entry/common.c:168
 exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:204
 __syscall_exit_to_user_mode_work kernel/entry/common.c:285 [inline]
 syscall_exit_to_user_mode+0x60/0x270 kernel/entry/common.c:296
 do_syscall_64+0x4c/0x110 arch/x86/entry/common.c:89
 entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7fa64c27cce9
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:00007fa64cf0f0c8 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 00007fa64c39bf80 RCX: 00007fa64c27cce9
RDX: 000000002006b000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007fa64c2c947a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007fa64c39bf80 R15: 00007ffd41968cb8
 </TASK>