rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
	(detected by 0, t=10502 jiffies, g=140261, q=14 ncpus=2)
rcu: All QSes seen, last rcu_preempt kthread activity 10503 (4295065698-4295055195), jiffies_till_next_fqs=1, root ->qsmask 0x0
rcu: rcu_preempt kthread starved for 10504 jiffies! g140261 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:26680 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
 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:schedule+0xac/0x180 kernel/sched/core.c:6636
Code: 89 f7 e8 b7 cb 4e f7 49 8b 3e 48 85 ff 74 0a be 01 00 00 00 e8 a5 c1 87 f9 4c 89 e3 48 c1 eb 03 eb 0a 49 f7 04 24 08 00 00 00 <74> 39 bf 01 00 00 00 e8 48 19 cb f6 31 ff e8 f1 b9 ff ff bf 01 00
RSP: 0018:ffffc90000157b98 EFLAGS: 00000202
RAX: 0000000000000001 RBX: 1ffff11027fd9b28 RCX: ffffffff8a933926
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffff88813fecd940
RBP: ffffc90000157cb0 R08: dffffc0000000000 R09: ffffed1027fd9b29
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88813fecd940
R13: 1ffff9200002af78 R14: ffff88813fecebb8 R15: dffffc0000000000
 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: 21 Comm: ksoftirqd/1 Not tainted 6.1.90-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
RIP: 0010:legacy_queue kernel/signal.c:1080 [inline]
RIP: 0010:__send_signal_locked+0x126/0xdc0 kernel/signal.c:1104
Code: 8b 1b 48 83 c3 78 eb 22 e8 a7 68 34 00 31 db 4c 89 f5 41 be 01 00 00 00 e9 08 0a 00 00 e8 92 68 34 00 49 8d 9c 24 38 09 00 00 <bf> 20 00 00 00 44 89 f6 e8 dd 6b 34 00 41 83 fe 1f 44 89 7c 24 24
RSP: 0018:ffffc900001e0d50 EFLAGS: 00000046
RAX: ffffffff815624be RBX: ffff888061788938 RCX: ffff888012749dc0
RDX: 0000000080010002 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000001 R08: ffffffff8156246a R09: ffffffff8156924c
R10: 0000000000000002 R11: ffff888012749dc0 R12: ffff888061788000
R13: 0000000000000001 R14: 0000000000000021 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2c02f000 CR3: 000000005ffd5000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 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 0f 1f 44 00 00 4c 89 f7 e8 7b d0 35 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:ffffc900001b7ac8 EFLAGS: 00000282
RAX: 5442ad634fa0dd00 RBX: ffff888061788034 RCX: ffffffff91c93103
RDX: dffffc0000000000 RSI: ffffffff8aec01c0 RDI: ffff88801274b3b8
RBP: ffffc900001b7b10 R08: dffffc0000000000 R09: ffffed1017327541
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff888012749dc0
R13: 1ffff110173276eb R14: ffff8880b993aa00 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:schedule+0xae/0x180 kernel/sched/core.c:6633
Code: e8 b7 cb 4e f7 49 8b 3e 48 85 ff 74 0a be 01 00 00 00 e8 a5 c1 87 f9 4c 89 e3 48 c1 eb 03 eb 0a 49 f7 04 24 08 00 00 00 74 39 <bf> 01 00 00 00 e8 48 19 cb f6 31 ff e8 f1 b9 ff ff bf 01 00 00 00
RSP: 0018:ffffc900001b7e50 EFLAGS: 00000202
RAX: 0000000000000001 RBX: 1ffff110024e93b8 RCX: ffffffff8a933926
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffff888012749dc0
RBP: ffff88801274b528 R08: dffffc0000000000 R09: ffffed10024e93b9
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff888012749dc0
R13: ffffffff8cfcf300 R14: ffff88801274b038 R15: dffffc0000000000
 smpboot_thread_fn+0x604/0xa30 kernel/smpboot.c:160
 kthread+0x28d/0x320 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
 </TASK>