rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	(detected by 0, t=10502 jiffies, g=5085, q=6 ncpus=2)
rcu: All QSes seen, last rcu_preempt kthread activity 10503 (4294969285-4294958782), jiffies_till_next_fqs=1, root ->qsmask 0x0
rcu: rcu_preempt kthread starved for 10504 jiffies! g5085 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:5400 [inline]
 __schedule+0xf12/0x5c00 kernel/sched/core.c:6727
 __schedule_loop kernel/sched/core.c:6802 [inline]
 schedule+0xe9/0x270 kernel/sched/core.c:6817
 schedule_timeout+0x137/0x290 kernel/time/timer.c:2183
 rcu_gp_fqs_loop+0x1ec/0xb10 kernel/rcu/tree.c:1663
 rcu_gp_kthread+0x24b/0x380 kernel/rcu/tree.c:1862
 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: 5106 Comm: syz-executor102 Not tainted 6.8.0-rc1-syzkaller-00356-g8a696a29c690 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023
RIP: 0010:__do_sys_rt_sigreturn+0x0/0x230 arch/x86/kernel/signal_64.c:247
Code: ff ff 4c 89 f7 e8 b0 23 b2 00 e9 22 fb ff ff 48 8b 7c 24 48 e8 41 24 b2 00 e9 d7 fd ff ff 66 66 2e 0f 1f 84 00 00 00 00 00 90 <f3> 0f 1e fa 41 57 41 56 41 55 41 54 49 bc 00 00 00 00 00 fc ff df
RSP: 0018:ffffc90004677f20 EFLAGS: 00000206
RAX: ffffffffffffffff RBX: ffffc90004677f58 RCX: 1ffffffff1e75901
RDX: 0000000000000000 RSI: ffffffff8accae80 RDI: ffffc90004677f58
RBP: ffffc90004677f48 R08: 0000000000000001 R09: 0000000000000001
R10: ffffffff8f3afa97 R11: 0000000000000000 R12: 000000000000000f
R13: 000000000000000f R14: 0000000000000000 R15: 0000000000000000
FS:  0000555556c6e3c0(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f9a197cd4c0 CR3: 0000000078ae6000 CR4: 0000000000350ef0
Call Trace:
 <NMI>
 </NMI>
 <TASK>
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xd3/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7f9a197cd4c9
Code: 64 c7 00 16 00 00 00 b8 ff ff ff ff c3 0f 1f 40 00 90 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 c7 c0 0f 00 00 00 0f 05 <0f> 1f 80 00 00 00 00 48 81 ec 48 01 00 00 49 89 d0 64 48 8b 04 25
RSP: 002b:00007ffc6876c080 EFLAGS: 00000202 ORIG_RAX: 000000000000000f
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f9a197cd4c9
RDX: 00007ffc6876c080 RSI: 00007ffc6876c1b0 RDI: 0000000000000021
RBP: 00000000000f4240 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000202 R12: 0000555556c6e370
R13: 0000000000000004 R14: 00007ffc6876c6a0 R15: 00007ffc6876c690
 </TASK>