rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	(detected by 1, t=10502 jiffies, g=22425, q=479 ncpus=2)
rcu: All QSes seen, last rcu_preempt kthread activity 10492 (4294967689-4294957197), jiffies_till_next_fqs=1, root ->qsmask 0x0
rcu: rcu_preempt kthread starved for 10493 jiffies! g22425 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0
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:27584 pid:17    tgid:17    ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5408 [inline]
 __schedule+0xf15/0x5d00 kernel/sched/core.c:6745
 __schedule_loop kernel/sched/core.c:6822 [inline]
 schedule+0xe7/0x350 kernel/sched/core.c:6837
 schedule_timeout+0x136/0x2a0 kernel/time/timer.c:2581
 rcu_gp_fqs_loop+0x1eb/0xb00 kernel/rcu/tree.c:2000
 rcu_gp_kthread+0x271/0x380 kernel/rcu/tree.c:2202
 kthread+0x2c1/0x3a0 kernel/kthread.c:389
 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>
rcu: Stack dump where RCU GP kthread last ran:
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 6682 Comm: syz-executor.3 Not tainted 6.10.0-rc3-syzkaller-00044-g2ccbdf43d5e7 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
RIP: 0010:arch_atomic_read arch/x86/include/asm/atomic.h:23 [inline]
RIP: 0010:raw_atomic_read include/linux/atomic/atomic-arch-fallback.h:457 [inline]
RIP: 0010:rcu_dynticks_curr_cpu_in_eqs include/linux/context_tracking.h:122 [inline]
RIP: 0010:rcu_is_watching+0x6d/0xc0 kernel/rcu/tree.c:724
Code: 48 03 1c ed 40 0b 4d 8d 48 b8 00 00 00 00 00 fc ff df 48 89 da 48 c1 ea 03 0f b6 14 02 48 89 d8 83 e0 07 83 c0 03 38 d0 7c 04 <84> d2 75 24 8b 03 c1 e8 02 83 e0 01 65 ff 0d 58 a0 8f 7e 74 07 5b
RSP: 0018:ffffc90000007d40 EFLAGS: 00000006
RAX: 0000000000000003 RBX: ffff8880b9237f28 RCX: ffffffff816bdafb
RDX: 0000000000000000 RSI: ffffffff8b900600 RDI: ffffffff8d4d0b40
RBP: 0000000000000000 R08: 0000000000000000 R09: fffffbfff1fc8df2
R10: ffffffff8fe46f97 R11: 0000000000000000 R12: 0000000000000001
R13: 0000000000000000 R14: ffff88802b37dc98 R15: 0000000000000000
FS:  000055556fec9480(0000) GS:ffff8880b9200000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2bd32000 CR3: 000000007a488000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 trace_lock_acquire include/trace/events/lock.h:24 [inline]
 lock_acquire+0x47b/0x560 kernel/locking/lockdep.c:5725
 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
 _raw_spin_lock_irqsave+0x3a/0x60 kernel/locking/spinlock.c:162
 __lock_task_sighand+0xc2/0x340 kernel/signal.c:1412
 lock_task_sighand include/linux/sched/signal.h:746 [inline]
 do_send_sig_info kernel/signal.c:1300 [inline]
 group_send_sig_info+0x290/0x300 kernel/signal.c:1451
 do_bpf_send_signal+0x9a/0x1d0 kernel/trace/bpf_trace.c:838
 irq_work_single+0x1bc/0x260 kernel/irq_work.c:221
 irq_work_run_list+0x92/0xc0 kernel/irq_work.c:252
 irq_work_run+0x58/0xd0 kernel/irq_work.c:261
 __sysvec_irq_work+0x8c/0x410 arch/x86/kernel/irq_work.c:22
 instr_sysvec_irq_work arch/x86/kernel/irq_work.c:17 [inline]
 sysvec_irq_work+0x90/0xb0 arch/x86/kernel/irq_work.c:17
 </IRQ>
 <TASK>
 asm_sysvec_irq_work+0x1a/0x20 arch/x86/include/asm/idtentry.h:738
RIP: 0010:finish_task_switch.isra.0+0x220/0xcc0 kernel/sched/core.c:5282
Code: a9 0a 00 00 44 8b 0d b7 52 86 0e 45 85 c9 0f 85 c0 01 00 00 48 89 df e8 ae f8 ff ff e8 d9 e6 36 00 fb 65 48 8b 1d 80 89 a5 7e <48> 8d bb f8 15 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1
RSP: 0018:ffffc900034c7810 EFLAGS: 00000206
RAX: 00000000007f7f8b RBX: ffff8880205e0000 RCX: 1ffffffff1fc85a1
RDX: 0000000000000000 RSI: ffffffff8b2caf60 RDI: ffffffff8b900680
RBP: ffffc900034c7858 R08: 0000000000000001 R09: 0000000000000001
R10: ffffffff8fe46f97 R11: 0000000000000000 R12: ffff8880b923f978
R13: ffff88802b0c5a00 R14: 0000000000000000 R15: ffff8880b923ec00
 context_switch kernel/sched/core.c:5411 [inline]
 __schedule+0xf1d/0x5d00 kernel/sched/core.c:6745
 preempt_schedule_irq+0x51/0x90 kernel/sched/core.c:7067
 irqentry_exit+0x36/0x90 kernel/entry/common.c:354
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:preempt_count_add+0x1a/0x150 kernel/sched/core.c:5873
Code: 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 48 c7 c0 e0 cb b4 94 55 48 ba 00 00 00 00 00 fc ff df 48 89 c1 53 <83> e0 07 89 fb 48 c1 e9 03 83 c0 03 65 01 3d 6b fc a5 7e 0f b6 14
RSP: 0018:ffffc900034c7ad0 EFLAGS: 00000202
RAX: ffffffff94b4cbe0 RBX: ffff8880205e0000 RCX: ffffffff94b4cbe0
RDX: dffffc0000000000 RSI: ffffffff8b2caf60 RDI: 0000000000000001
RBP: ffffed10040bc000 R08: 0000000000000000 R09: 0000000000000001
R10: ffffffff8fe46f97 R11: 0000000000000000 R12: ffff8880205e002c
R13: ffff8880205e0000 R14: ffffffff818153d1 R15: dffffc0000000000
 __schedule_loop kernel/sched/core.c:6821 [inline]
 schedule+0xe0/0x350 kernel/sched/core.c:6837
 futex_wait_queue+0xfc/0x1f0 kernel/futex/waitwake.c:370
 __futex_wait+0x291/0x3c0 kernel/futex/waitwake.c:669
 futex_wait+0xe9/0x380 kernel/futex/waitwake.c:697
 do_futex+0x22b/0x350 kernel/futex/syscalls.c:102
 __do_sys_futex kernel/futex/syscalls.c:179 [inline]
 __se_sys_futex kernel/futex/syscalls.c:160 [inline]
 __x64_sys_futex+0x1e1/0x4c0 kernel/futex/syscalls.c:160
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f947fe7cea9
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:00007fff1cde3fb8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: ffffffffffffffda RBX: 00000000000312bd RCX: 00007f947fe7cea9
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f947ffb405c
RBP: 00000000000312ef R08: 00007f9480bd7080 R09: 0000000c00000000
R10: 00007fff1cde40a0 R11: 0000000000000246 R12: 00007fff1cde40a0
R13: 00007f947ffb405c R14: 0000000000000032 R15: 00007fff1cde40c0
 </TASK>