rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1): P10422/1:b..l
rcu: 	(detected by 0, t=10502 jiffies, g=92277, q=131 ncpus=2)
task:syz-executor.2  state:R  running task     stack:19720 pid:10422 ppid:10421  flags:0x00004002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5382 [inline]
 __schedule+0x196c/0x4af0 kernel/sched/core.c:6695
 preempt_schedule_common+0x83/0xc0 kernel/sched/core.c:6864
 preempt_schedule+0xdd/0xf0 kernel/sched/core.c:6888
 preempt_schedule_thunk+0x1a/0x30 arch/x86/entry/thunk_64.S:45
 __raw_spin_unlock include/linux/spinlock_api_smp.h:143 [inline]
 _raw_spin_unlock+0x3a/0x40 kernel/locking/spinlock.c:186
 spin_unlock include/linux/spinlock.h:391 [inline]
 copy_pte_range mm/memory.c:1106 [inline]
 copy_pmd_range mm/memory.c:1167 [inline]
 copy_pud_range mm/memory.c:1204 [inline]
 copy_p4d_range mm/memory.c:1228 [inline]
 copy_page_range+0x3761/0x4390 mm/memory.c:1326
 dup_mmap kernel/fork.c:758 [inline]
 dup_mm kernel/fork.c:1686 [inline]
 copy_mm+0x1207/0x1f10 kernel/fork.c:1735
 copy_process+0x1d73/0x41a0 kernel/fork.c:2501
 kernel_clone+0x222/0x840 kernel/fork.c:2909
 __do_sys_clone kernel/fork.c:3052 [inline]
 __se_sys_clone kernel/fork.c:3036 [inline]
 __x64_sys_clone+0x258/0x2a0 kernel/fork.c:3036
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fab2f479b13
RSP: 002b:00007ffd0ad16628 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fab2f479b13
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011
RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000
R10: 0000555555915750 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
 </TASK>
rcu: rcu_preempt kthread timer wakeup didn't happen for 10499 jiffies! g92277 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402
rcu: 	Possible timer handling issue on cpu=1 timer-softirq=85242
rcu: rcu_preempt kthread starved for 10500 jiffies! g92277 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->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:I stack:25672 pid:17    ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5382 [inline]
 __schedule+0x196c/0x4af0 kernel/sched/core.c:6695
 schedule+0xc3/0x180 kernel/sched/core.c:6771
 schedule_timeout+0x1bd/0x300 kernel/time/timer.c:2167
 rcu_gp_fqs_loop+0x2c6/0x1010 kernel/rcu/tree.c:1613
 rcu_gp_kthread+0xa7/0x3b0 kernel/rcu/tree.c:1812
 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:304
 </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: 20683 Comm: syz-executor.5 Not tainted 6.6.0-rc2-syzkaller-00414-g8a511e7efc5a #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/04/2023
RIP: 0010:lock_acquire+0x29f/0x520 kernel/locking/lockdep.c:5757
Code: 66 43 c7 44 25 15 00 00 43 c6 44 25 17 00 65 48 8b 04 25 28 00 00 00 48 3b 84 24 00 01 00 00 0f 85 76 02 00 00 48 8d 65 d8 5b <41> 5c 41 5d 41 5e 41 5f 5d c3 65 8b 05 48 97 95 7e 85 c0 75 9d 65
RSP: 0018:ffffc900001f0c28 EFLAGS: 00000046
RAX: a66fdf6ce60fc200 RBX: 1ffff9200003e190 RCX: ffffffff816d08e5
RDX: 0000000000000000 RSI: ffffffff8b0ab5a0 RDI: ffffffff8b599aa0
RBP: ffffc900001f0c48 R08: dffffc0000000000 R09: 1ffffffff20df670
R10: dffffc0000000000 R11: fffffbfff20df671 R12: 1ffff9200003e168
R13: dffffc0000000000 R14: ffffc900001f0b60 R15: 0000000000000046
FS:  0000555555dfd480(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f2f0f198000 CR3: 0000000091a6e000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
 _raw_spin_lock_irqsave+0xd5/0x120 kernel/locking/spinlock.c:162
 debug_object_deactivate+0x65/0x2b0 lib/debugobjects.c:783
 debug_hrtimer_deactivate kernel/time/hrtimer.c:427 [inline]
 debug_deactivate+0x1b/0x1f0 kernel/time/hrtimer.c:483
 __run_hrtimer kernel/time/hrtimer.c:1656 [inline]
 __hrtimer_run_queues+0x321/0xd10 kernel/time/hrtimer.c:1752
 hrtimer_interrupt+0x396/0x980 kernel/time/hrtimer.c:1814
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1063 [inline]
 __sysvec_apic_timer_interrupt+0x104/0x390 arch/x86/kernel/apic/apic.c:1080
 sysvec_apic_timer_interrupt+0x90/0xb0 arch/x86/kernel/apic/apic.c:1074
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:645
RIP: 0010:finish_task_switch+0x1d3/0x830 kernel/sched/core.c:5254
Code: 89 0b 00 48 83 c4 08 4c 89 f7 e8 68 31 00 00 0f 1f 44 00 00 4c 89 f7 e8 cb 5e 76 09 e8 46 76 33 00 fb 49 8d bc 24 e0 15 00 00 <48> 89 f8 48 c1 e8 03 49 bd 00 00 00 00 00 fc ff df 42 0f b6 04 28
RSP: 0018:ffffc90004d476e8 EFLAGS: 00000282
RAX: a66fdf6ce60fc200 RBX: ffff888021ded974 RCX: ffffffff91ef3303
RDX: dffffc0000000000 RSI: ffffffff8b0aa420 RDI: ffff88808dc05160
RBP: ffffc90004d47730 R08: ffffffff8e9a792f R09: 1ffffffff1d34f25
R10: dffffc0000000000 R11: fffffbfff1d34f26 R12: ffff88808dc03b80
R13: 1ffff11017327a0b R14: ffff8880b993c300 R15: ffff8880b993d058
 context_switch kernel/sched/core.c:5385 [inline]
 __schedule+0x1974/0x4af0 kernel/sched/core.c:6695
 preempt_schedule_common+0x83/0xc0 kernel/sched/core.c:6864
 preempt_schedule+0xdd/0xf0 kernel/sched/core.c:6888
 preempt_schedule_thunk+0x1a/0x30 arch/x86/entry/thunk_64.S:45
 class_preempt_destructor include/linux/preempt.h:467 [inline]
 try_to_wake_up+0x9bd/0x1300 kernel/sched/core.c:4353
 wake_up_process kernel/sched/core.c:4478 [inline]
 wake_up_q+0xc8/0x110 kernel/sched/core.c:1029
 futex_wake+0x4ee/0x590 kernel/futex/waitwake.c:184
 do_futex+0x37f/0x530 kernel/futex/syscalls.c:111
 __do_sys_futex kernel/futex/syscalls.c:183 [inline]
 __se_sys_futex+0x3f8/0x480 kernel/futex/syscalls.c:164
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f2f0f07cae9
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:00007ffc676bbca8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f2f0f07cae9
RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007f2f0f19bf88
RBP: 0000000000000048 R08: 00007f2f0f19bf8c R09: 00007f2f0f19bf8c
R10: 00007f2f0ec00168 R11: 0000000000000246 R12: 00007f2f0f19bf80
R13: 0000000000000093 R14: 0000000000000000 R15: 00007f2f0f19bf80
 </TASK>