rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	(detected by 1, t=10502 jiffies, g=27165, q=374 ncpus=2)
rcu: All QSes seen, last rcu_preempt kthread activity 10502 (4294970395-4294959893), jiffies_till_next_fqs=1, root ->qsmask 0x0
rcu: rcu_preempt kthread starved for 10502 jiffies! g27165 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:25656 pid:17    tgid:17    ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5408 [inline]
 __schedule+0x17e8/0x4a20 kernel/sched/core.c:6745
 __schedule_loop kernel/sched/core.c:6822 [inline]
 schedule+0x14b/0x320 kernel/sched/core.c:6837
 schedule_timeout+0x1be/0x310 kernel/time/timer.c:2581
 rcu_gp_fqs_loop+0x2df/0x1330 kernel/rcu/tree.c:2000
 rcu_gp_kthread+0xa7/0x3b0 kernel/rcu/tree.c:2202
 kthread+0x2f2/0x390 kernel/kthread.c:389
 ret_from_fork+0x4d/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: 7788 Comm: syz-executor.4 Not tainted 6.10.0-rc3-syzkaller-00022-gcea2a26553ac #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
RIP: 0010:kasan_check_range+0xc/0x290 mm/kasan/generic.c:188
Code: 0f 0b 66 2e 0f 1f 84 00 00 00 00 00 66 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 66 0f 1f 00 55 41 57 41 56 41 54 53 <b0> 01 48 85 f6 0f 84 a0 01 00 00 4c 8d 04 37 49 39 f8 0f 82 56 02
RSP: 0018:ffffc90000007850 EFLAGS: 00000046
RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff81728c40
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff8fad4de8
RBP: ffffc900000079c0 R08: 0000000000000003 R09: fffff52000000f2c
R10: dffffc0000000000 R11: fffff52000000f2c R12: 1ffff92000000f1c
R13: ffffffff816cc167 R14: 000000000000005c R15: dffffc0000000000
FS:  000055555c317480(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b32f38000 CR3: 000000004b6aa000 CR4: 0000000000350ef0
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 instrument_atomic_read include/linux/instrumented.h:68 [inline]
 _test_bit include/asm-generic/bitops/instrumented-non-atomic.h:141 [inline]
 cpumask_test_cpu include/linux/cpumask.h:571 [inline]
 cpu_online include/linux/cpumask.h:1181 [inline]
 trace_lock_release include/trace/events/lock.h:69 [inline]
 lock_release+0xb0/0x9f0 kernel/locking/lockdep.c:5765
 __raw_spin_unlock include/linux/spinlock_api_smp.h:141 [inline]
 _raw_spin_unlock+0x16/0x50 kernel/locking/spinlock.c:186
 do_start_rt_bandwidth kernel/sched/rt.c:122 [inline]
 start_rt_bandwidth kernel/sched/rt.c:130 [inline]
 inc_rt_group kernel/sched/rt.c:1187 [inline]
 inc_rt_tasks kernel/sched/rt.c:1230 [inline]
 __enqueue_rt_entity kernel/sched/rt.c:1405 [inline]
 enqueue_rt_entity kernel/sched/rt.c:1454 [inline]
 enqueue_task_rt+0x657/0xcf0 kernel/sched/rt.c:1489
 enqueue_task+0x1a3/0x2f0 kernel/sched/core.c:2116
 activate_task kernel/sched/core.c:2146 [inline]
 ttwu_do_activate+0x1d1/0x7e0 kernel/sched/core.c:3793
 ttwu_queue kernel/sched/core.c:4057 [inline]
 try_to_wake_up+0x884/0x1470 kernel/sched/core.c:4378
 signal_wake_up_state+0xb4/0x120 kernel/signal.c:773
 signal_wake_up include/linux/sched/signal.h:448 [inline]
 complete_signal+0x94a/0xcf0 kernel/signal.c:1065
 __send_signal_locked+0xb1b/0xdc0 kernel/signal.c:1185
 do_send_sig_info kernel/signal.c:1301 [inline]
 group_send_sig_info+0x292/0x310 kernel/signal.c:1451
 do_bpf_send_signal+0x85/0x190 kernel/trace/bpf_trace.c:838
 irq_work_single+0xe4/0x240 kernel/irq_work.c:221
 irq_work_run_list kernel/irq_work.c:252 [inline]
 irq_work_run+0x18b/0x350 kernel/irq_work.c:261
 __sysvec_irq_work+0xb8/0x430 arch/x86/kernel/irq_work.c:22
 instr_sysvec_irq_work arch/x86/kernel/irq_work.c:17 [inline]
 sysvec_irq_work+0x9e/0xc0 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+0x1ea/0x870 kernel/sched/core.c:5282
Code: c9 50 e8 99 c9 0b 00 48 83 c4 08 4c 89 f7 e8 cd 38 00 00 0f 1f 44 00 00 4c 89 f7 e8 20 c7 2a 0a e8 5b f8 36 00 fb 48 8b 5d c0 <48> 8d bb f8 15 00 00 48 89 f8 48 c1 e8 03 49 be 00 00 00 00 00 fc
RSP: 0018:ffffc900163176c8 EFLAGS: 00000282
RAX: 15330c106e876600 RBX: ffff88807b095a00 RCX: ffffffff8172d80a
RDX: dffffc0000000000 RSI: ffffffff8bcabb80 RDI: ffffffff8c1ff480
RBP: ffffc90016317710 R08: ffffffff92fab5b7 R09: 1ffffffff25f56b6
R10: dffffc0000000000 R11: fffffbfff25f56b7 R12: 1ffff11017287ea7
R13: dffffc0000000000 R14: ffff8880b943e7c0 R15: ffff8880b943f538
 context_switch kernel/sched/core.c:5411 [inline]
 __schedule+0x17f0/0x4a20 kernel/sched/core.c:6745
 preempt_schedule_irq+0xfb/0x1c0 kernel/sched/core.c:7067
 irqentry_exit+0x5e/0x90 kernel/entry/common.c:354
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:constant_test_bit arch/x86/include/asm/bitops.h:206 [inline]
RIP: 0010:arch_test_bit arch/x86/include/asm/bitops.h:238 [inline]
RIP: 0010:tif_need_resched include/linux/thread_info.h:184 [inline]
RIP: 0010:need_resched include/linux/sched.h:2110 [inline]
RIP: 0010:__schedule_loop kernel/sched/core.c:6824 [inline]
RIP: 0010:schedule+0x15a/0x320 kernel/sched/core.c:6837
Code: 48 f7 45 00 08 00 00 00 74 2c bf 01 00 00 00 e8 1c cf d5 f5 31 ff e8 85 b4 ff ff bf 01 00 00 00 e8 ab d0 d5 f5 42 80 3c 23 00 <74> d4 48 89 ef e8 bc 20 6c f6 eb ca 4c 8d 75 2c 4d 89 f5 49 c1 ed
RSP: 0018:ffffc90016317aa0 EFLAGS: 00000246
RAX: 0000000000000001 RBX: 1ffff1100f612b40 RCX: 0000000000000001
RDX: dffffc0000000000 RSI: ffffffff8bcabb80 RDI: 0000000000000001
RBP: ffff88807b095a00 R08: ffffffff92fab5b7 R09: 1ffffffff25f56b6
R10: dffffc0000000000 R11: fffffbfff25f56b7 R12: dffffc0000000000
R13: ffff88802b026080 R14: ffffffff8b8fc9e0 R15: ffff88807b096c78
 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6894
 rwsem_down_write_slowpath+0xeeb/0x13b0 kernel/locking/rwsem.c:1178
 __down_write_common+0x1af/0x200 kernel/locking/rwsem.c:1306
 __down_write_killable kernel/locking/rwsem.c:1320 [inline]
 down_write_killable+0x5a/0x80 kernel/locking/rwsem.c:1592
 mmap_write_lock_killable include/linux/mmap_lock.h:122 [inline]
 vm_mmap_pgoff+0x17c/0x3d0 mm/util.c:571
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fd501e7cee3
Code: f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 41 89 ca 41 f7 c1 ff 0f 00 00 75 14 b8 09 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 25 c3 0f 1f 40 00 48 c7 c0 b0 ff ff ff 64 c7
RSP: 002b:00007ffc5864ec98 EFLAGS: 00000246 ORIG_RAX: 0000000000000009
RAX: ffffffffffffffda RBX: 00007fd5008006c0 RCX: 00007fd501e7cee3
RDX: 0000000000000000 RSI: 0000000000021000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 00000000ffffffff R09: 0000000000000000
R10: 0000000000020022 R11: 0000000000000246 R12: 00007ffc5864eef0
R13: ffffffffffffffc0 R14: 0000000000001000 R15: 0000000000000000
 </TASK>