rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	0-...!: (10503 ticks this GP) idle=090c/1/0x4000000000000000 softirq=7086/7089 fqs=3
	(t=10501 jiffies g=5565 q=8510 ncpus=2)
rcu: rcu_preempt kthread starved for 10495 jiffies! g5565 f0x0 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:0     pid:16    ppid:2      flags:0x00000008
Call trace:
 __switch_to+0x2f4/0x568 arch/arm64/kernel/process.c:555
 context_switch kernel/sched/core.c:5244 [inline]
 __schedule+0xdd4/0x1b2c kernel/sched/core.c:6561
 schedule+0xc4/0x170 kernel/sched/core.c:6637
 schedule_timeout+0x180/0x2c8 kernel/time/timer.c:1965
 rcu_gp_fqs_loop+0x2a8/0x134c kernel/rcu/tree.c:1706
 rcu_gp_kthread+0xc0/0x2f8 kernel/rcu/tree.c:1905
 kthread+0x250/0x2d8 kernel/kthread.c:376
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:864
rcu: Stack dump where RCU GP kthread last ran:
Task dump for CPU 1:
task:syz-executor275 state:R  running task     stack:0     pid:4381  ppid:4313   flags:0x00000001
Call trace:
 __switch_to+0x2f4/0x568 arch/arm64/kernel/process.c:555
 check_preemption_disabled+0x38/0x104 lib/smp_processor_id.c:16
CPU: 0 PID: 4379 Comm: syz-executor275 Not tainted 6.1.140-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : preempt_count+0x2c/0x68 arch/arm64/include/asm/preempt.h:13
lr : preempt_count+0x14/0x68 arch/arm64/include/asm/preempt.h:12
sp : ffff800020cd7a60
x29: ffff800020cd7a70 x28: ffff0000d1541bc0 x27: ffff8000087d2780
x26: dfff800000000000 x25: 0000000000000001 x24: 0000000000000000
x23: ffff0000d1541bc0 x22: ffff800011f69420 x21: ffff800011f69460
x20: ffff800011919298 x19: 0000000000000000 x18: 0000000000000000
x17: 0000000000000000 x16: ffff8000082d076c x15: 0000000000000000
x14: 0000000000000002 x13: 1ffff00002a0e0b1 x12: 0000000000ff0100
x11: ff0080000a889954 x10: dfff800000000000 x9 : 0000000000000000
x8 : ffff0000d1541bc8 x7 : ffff8000087d2758 x6 : 0000000000000000
x5 : 0000000000000000 x4 : 0000000000000001 x3 : 0000000000000001
x2 : 0000000000000008 x1 : ffff800011f69460 x0 : ffff80018a752000
Call trace:
 preempt_count+0x2c/0x68 arch/arm64/include/asm/preempt.h:13
 check_preemption_disabled+0x38/0x104 lib/smp_processor_id.c:16
 debug_smp_processor_id+0x20/0x2c lib/smp_processor_id.c:60
 rcu_dynticks_curr_cpu_in_eqs include/linux/context_tracking.h:122 [inline]
 rcu_is_watching+0x50/0x134 kernel/rcu/tree.c:721
 trace_lock_release include/trace/events/lock.h:69 [inline]
 lock_release+0xd0/0x910 kernel/locking/lockdep.c:5673
 __might_fault+0xf0/0x124 mm/memory.c:5852
 setup_sigframe arch/arm64/kernel/signal.c:793 [inline]
 setup_rt_frame arch/arm64/kernel/signal.c:980 [inline]
 handle_signal arch/arm64/kernel/signal.c:1021 [inline]
 do_signal arch/arm64/kernel/signal.c:1096 [inline]
 do_notify_resume+0xccc/0x2b0c arch/arm64/kernel/signal.c:1134
 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:137 [inline]
 exit_to_user_mode arch/arm64/kernel/entry-common.c:142 [inline]
 el0_svc+0x98/0x138 arch/arm64/kernel/entry-common.c:638
 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585