rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	0-...!: (10499 ticks this GP) idle=c3a4/1/0x4000000000000000 softirq=29004/29004 fqs=0
	(t=10500 jiffies g=39309 q=21 ncpus=2)
rcu: rcu_preempt kthread starved for 10500 jiffies! g39309 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:25208 pid:16    ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5245 [inline]
 __schedule+0x142d/0x4550 kernel/sched/core.c:6558
 schedule+0xbf/0x180 kernel/sched/core.c:6634
 schedule_timeout+0x1b9/0x300 kernel/time/timer.c:1965
 rcu_gp_fqs_loop+0x2d2/0x1150 kernel/rcu/tree.c:1706
 rcu_gp_kthread+0xa3/0x3b0 kernel/rcu/tree.c:1905
 kthread+0x28d/0x320 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
 </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: 8273 Comm: syz-executor.0 Not tainted 6.1.92-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
RIP: 0010:__raw_callee_save___pv_queued_spin_unlock+0xc/0x12
Code: 56 57 41 50 41 51 41 52 41 53 e8 cf 0a 00 00 41 5b 41 5a 41 59 41 58 5f 5e 5a 59 c3 66 90 52 b8 01 00 00 00 31 d2 f0 0f b0 17 <3c> 01 75 02 5a c3 56 0f b6 f0 e8 c5 ff ff ff 5e 5a c3 66 90 55 48
RSP: 0018:ffffc900001e0a38 EFLAGS: 00000046
RAX: 0000000000000001 RBX: 1ffffffff1fd5211 RCX: 0000000000000001
RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffffffff8fea9080
RBP: dffffc0000000000 R08: dffffc0000000000 R09: fffffbfff1fd5211
R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffffffff1fd5212
R13: ffffffff8fea9090 R14: ffffffff8fea9088 R15: ffffffff8fea9080
FS:  0000555557121480(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020404030 CR3: 000000002013d000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 pv_queued_spin_unlock arch/x86/include/asm/paravirt.h:596 [inline]
 queued_spin_unlock arch/x86/include/asm/qspinlock.h:57 [inline]
 do_raw_spin_unlock+0x137/0x8a0 kernel/locking/spinlock_debug.c:141
 __raw_spin_unlock include/linux/spinlock_api_smp.h:142 [inline]
 _raw_spin_unlock+0x1a/0x40 kernel/locking/spinlock.c:186
 do_start_rt_bandwidth kernel/sched/rt.c:123 [inline]
 start_rt_bandwidth kernel/sched/rt.c:131 [inline]
 inc_rt_group kernel/sched/rt.c:1245 [inline]
 inc_rt_tasks kernel/sched/rt.c:1289 [inline]
 __enqueue_rt_entity kernel/sched/rt.c:1465 [inline]
 enqueue_rt_entity kernel/sched/rt.c:1514 [inline]
 enqueue_task_rt+0x6b4/0xf80 kernel/sched/rt.c:1549
 enqueue_task+0x181/0x3a0 kernel/sched/core.c:2060
 activate_task kernel/sched/core.c:2088 [inline]
 ttwu_do_activate+0x1b4/0x370 kernel/sched/core.c:3700
 ttwu_queue kernel/sched/core.c:3905 [inline]
 try_to_wake_up+0x76b/0x12e0 kernel/sched/core.c:4228
 signal_wake_up_state kernel/signal.c:780 [inline]
 signal_wake_up include/linux/sched/signal.h:457 [inline]
 complete_signal+0x796/0xbd0 kernel/signal.c:1074
 __send_signal_locked+0xb1a/0xdc0 kernel/signal.c:1194
 do_send_sig_info kernel/signal.c:1300 [inline]
 group_send_sig_info+0x28a/0x300 kernel/signal.c:1448
 do_bpf_send_signal+0x81/0x150 kernel/trace/bpf_trace.c:839
 irq_work_single+0xd5/0x230 kernel/irq_work.c:211
 irq_work_run_list kernel/irq_work.c:242 [inline]
 irq_work_run+0x187/0x350 kernel/irq_work.c:251
 __sysvec_irq_work+0xbb/0x360 arch/x86/kernel/irq_work.c:22
 sysvec_irq_work+0x89/0xb0 arch/x86/kernel/irq_work.c:17
 </IRQ>
 <TASK>
 asm_sysvec_irq_work+0x16/0x20 arch/x86/include/asm/idtentry.h:679
RIP: 0010:finish_task_switch+0x1d3/0x810 kernel/sched/core.c:5124
Code: 37 0b 00 48 83 c4 08 4c 89 f7 e8 98 30 00 00 e9 8f 04 00 00 4c 89 f7 e8 7b 20 36 09 e8 36 26 32 00 fb 49 8d bc 24 f8 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:ffffc90003c47728 EFLAGS: 00000282
RAX: a05a2bc3e4cd0d00 RBX: ffff8880b993b748 RCX: ffffffff91c94103
RDX: dffffc0000000000 RSI: ffffffff8aec01c0 RDI: ffff888019a433b8
RBP: ffffc90003c47770 R08: dffffc0000000000 R09: ffffed1017307541
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff888019a41dc0
R13: 1ffff110173276eb R14: ffff8880b983aa00 R15: ffff8880b993b758
 context_switch kernel/sched/core.c:5248 [inline]
 __schedule+0x1435/0x4550 kernel/sched/core.c:6558
 preempt_schedule_irq+0xf7/0x1c0 kernel/sched/core.c:6870
 irqentry_exit+0x53/0x80 kernel/entry/common.c:439
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:653
RIP: 0010:preempt_count_add+0x0/0x180 kernel/sched/core.c:5698
Code: 48 8b 0c 24 80 e1 07 80 c1 03 38 c1 7c 97 48 8b 3c 24 e8 83 ba 83 00 eb 8c e9 f2 fe ff ff 66 2e 0f 1f 84 00 00 00 00 00 66 90 <41> 57 41 56 53 89 fb 48 c7 c0 60 41 c9 91 48 c1 e8 03 49 bf 00 00
RSP: 0018:ffffc90003c47ac8 EFLAGS: 00000202
RAX: 0000000000000001 RBX: 1ffff110033483b8 RCX: ffffffff8a938926
RDX: 0000000000000000 RSI: 0000000000000008 RDI: 0000000000000001
RBP: 1ffff110033486a5 R08: dffffc0000000000 R09: ffffed10033483b9
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff888019a41dc0
R13: ffffc90003c47c68 R14: ffff888019a43038 R15: dffffc0000000000
 schedule+0xb8/0x180 kernel/sched/core.c:6633
 futex_wait_queue+0x149/0x1d0 kernel/futex/waitwake.c:355
 futex_wait+0x203/0x5c0 kernel/futex/waitwake.c:656
 do_futex+0x3b5/0x490 kernel/futex/syscalls.c:106
 __do_sys_futex kernel/futex/syscalls.c:183 [inline]
 __se_sys_futex+0x3d7/0x460 kernel/futex/syscalls.c:164
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7fa6ff47cf69
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:00007ffc8d3287a8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: ffffffffffffffda RBX: 000000000005e807 RCX: 00007fa6ff47cf69
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007fa6ff5b405c
RBP: 000000000005e839 R08: 0000000000000010 R09: 0000000e00000000
R10: 00007ffc8d328890 R11: 0000000000000246 R12: 00007ffc8d328890
R13: 00007fa6ff5b405c R14: 0000000000000032 R15: 00007ffc8d3288b0
 </TASK>
CPU: 0 PID: 8277 Comm: syz-executor.0 Not tainted 6.1.92-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
RIP: 0010:trace_lock_acquire include/trace/events/lock.h:24 [inline]
RIP: 0010:lock_acquire+0xf3/0x5a0 kernel/locking/lockdep.c:5633
Code: 0d 0f 86 e4 02 00 00 89 db 48 89 d8 48 c1 e8 06 48 8d 3c c5 68 89 73 8e be 08 00 00 00 e8 75 ac 77 00 48 0f a3 1d 75 27 09 0d <73> 0d e8 46 e3 08 00 84 c0 0f 84 b9 02 00 00 48 c7 c0 24 be 73 8e
RSP: 0018:ffffc9000390fbe0 EFLAGS: 00000257
RAX: 0000000000000001 RBX: 0000000000000000 RCX: ffffffff816a61eb
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff8e738968
RBP: ffffc9000390fd38 R08: dffffc0000000000 R09: fffffbfff1ce712e
R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff92000721f84
R13: dffffc0000000000 R14: 0000000000000000 R15: 1ffff1100ada145d
FS:  00007fa7002166c0(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fa700215f80 CR3: 000000002013d000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 </IRQ>
 <TASK>
 __might_fault+0xbd/0x110 mm/memory.c:5835
 clear_rseq_cs kernel/rseq.c:228 [inline]
 rseq_ip_fixup kernel/rseq.c:262 [inline]
 __rseq_handle_notify_resume+0x5ba/0x1500 kernel/rseq.c:300
 rseq_handle_notify_resume include/linux/sched.h:2329 [inline]
 resume_user_mode_work include/linux/resume_user_mode.h:61 [inline]
 exit_to_user_mode_loop+0xb4/0x100 kernel/entry/common.c:177
 exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:210
 __syscall_exit_to_user_mode_work kernel/entry/common.c:292 [inline]
 syscall_exit_to_user_mode+0x60/0x270 kernel/entry/common.c:303
 do_syscall_64+0x47/0xb0 arch/x86/entry/common.c:87
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7fa6ff4a46f0
Code: 83 c0 16 83 e0 f7 74 12 50 48 8d 3d 9a 9a 04 00 e8 45 78 fa ff 0f 1f 44 00 00 c3 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 <83> ff 21 74 0b c3 66 2e 0f 1f 84 00 00 00 00 00 55 53 48 89 f3 48
RSP: 002b:00007fa700215bb8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: 0000000000000000 RBX: 00007fa6ff5b4058 RCX: 00007fa6ff47cf69
RDX: 00007fa700215bc0 RSI: 00007fa700215cf0 RDI: 0000000000000021
RBP: 00007fa6ff5b4050 R08: 00007fa7002166c0 R09: 00007fa7002166c0
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fa6ff5b405c
R13: 000000000000006e R14: 00007ffc8d3285e0 R15: 00007ffc8d3286c8
 </TASK>