rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: (detected by 1, t=10502 jiffies, g=5597, q=18 ncpus=2)
rcu: All QSes seen, last rcu_preempt kthread activity 10503 (4294970795-4294960292), jiffies_till_next_fqs=1, root ->qsmask 0x0
rcu: rcu_preempt kthread starved for 10504 jiffies! g5597 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:24176 pid:17 tgid:17 ppid:2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5400 [inline]
__schedule+0x177f/0x4960 kernel/sched/core.c:6727
__schedule_loop kernel/sched/core.c:6802 [inline]
schedule+0x149/0x260 kernel/sched/core.c:6817
schedule_timeout+0x1bd/0x300 kernel/time/timer.c:2183
rcu_gp_fqs_loop+0x30a/0x1500 kernel/rcu/tree.c:1631
rcu_gp_kthread+0xa7/0x3b0 kernel/rcu/tree.c:1830
kthread+0x2d3/0x370 kernel/kthread.c:388
ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242
rcu: Stack dump where RCU GP kthread last ran:
CPU: 1 PID: 5104 Comm: syz-executor747 Not tainted 6.7.0-syzkaller-13004-g4fbbed787267 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023
RIP: 0033:0x7fbb49dd2380
Code: 4c 24 0c 0f b6 74 24 0b e9 68 fe ff ff 48 83 c4 18 48 8d 3d 52 0f 09 00 5b 5d 41 5c 41 5d 41 5e 41 5f e9 43 d8 fd ff 0f 1f 00 27 00 00 00 0f 05 c3 0f 1f 84 00 00 00 00 00 31 f6 31 ff e9 c7
RSP: 002b:00007fffa3f46808 EFLAGS: 00000202
RAX: 0000000000000000 RBX: 00007fffa3f46970 RCX: 00007fbb49dd3e79
RDX: 00007fffa3f46840 RSI: 00007fffa3f46970 RDI: 0000000000000021
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000055555714f370
R13: 0000000000000000 R14: 00007fffa3f46e60 R15: 00007fffa3f46e50
FS: 000055555714f3c0 GS: 0000000000000000