rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	0-...!: (1 GPs behind) idle=13d4/1/0x4000000000000000 softirq=153970/153971 fqs=1
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1): P12241/1:b..l P12236/1:b..l P31598/1:b..l
rcu: 	(detected by 1, t=10505 jiffies, g=213829, q=309 ncpus=2)
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 31623 Comm: syz-executor.3 Not tainted 6.9.0-syzkaller-01768-ga5131c3fdf26 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
RIP: 0010:__raw_spin_lock include/linux/spinlock_api_smp.h:134 [inline]
RIP: 0010:_raw_spin_lock+0x32/0x40 kernel/locking/spinlock.c:154
Code: bf 01 00 00 00 e8 9e 56 da f5 48 8d 7b 18 31 f6 31 d2 31 c9 41 b8 01 00 00 00 45 31 c9 ff 74 24 08 e8 32 29 e7 f5 48 83 c4 08 <48> 89 df 5b e9 b5 8c e8 f5 0f 1f 44 00 00 90 90 90 90 90 90 90 90
RSP: 0018:ffffc900000078a0 EFLAGS: 00000096
RAX: 4ff974f4d3609f00 RBX: ffff88806aee42e8 RCX: 0000000000000001
RDX: dffffc0000000000 RSI: ffffffff8bcace60 RDI: ffffffff8c1f9ca0
RBP: dffffc0000000000 R08: ffffffff92f4179f R09: 1ffffffff25e82f3
R10: dffffc0000000000 R11: fffffbfff25e82f4 R12: 0000000000000002
R13: ffffffff898a90a0 R14: ffff88806aee4340 R15: ffff8880296ec6c8
FS:  00007fc519d4f6c0(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2cf23000 CR3: 000000002e6d4000 CR4: 0000000000350ef0
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 spin_lock include/linux/spinlock.h:351 [inline]
 advance_sched+0xab/0xca0 net/sched/sch_taprio.c:924
 __run_hrtimer kernel/time/hrtimer.c:1692 [inline]
 __hrtimer_run_queues+0x5a7/0xd50 kernel/time/hrtimer.c:1756
 hrtimer_interrupt+0x396/0x990 kernel/time/hrtimer.c:1818
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1032 [inline]
 __sysvec_apic_timer_interrupt+0x112/0x3f0 arch/x86/kernel/apic/apic.c:1049
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline]
 sysvec_apic_timer_interrupt+0x52/0xc0 arch/x86/kernel/apic/apic.c:1043
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:sched_balance_domains+0x262/0xa90 kernel/sched/fair.c:11770
Code: e8 03 48 89 84 24 98 00 00 00 42 80 3c 28 00 48 89 7c 24 70 74 0a e8 cd 55 8f 00 48 8b 7c 24 70 48 c7 c3 78 f1 03 00 48 03 1f <48> 89 d8 48 c1 e8 03 42 80 3c 28 00 74 08 48 89 df e8 a8 55 8f 00
RSP: 0018:ffffc90000007ce0 EFLAGS: 00000286
RAX: 1ffffffff1bab144 RBX: ffff8880b943f178 RCX: ffff8880296ebc00
RDX: dffffc0000000000 RSI: ffffffff8c1f9c80 RDI: ffffffff8dd58a20
RBP: ffffc90000007e10 R08: ffffffff92f41587 R09: 1ffffffff25e82b0
R10: dffffc0000000000 R11: fffffbfff25e82b1 R12: ffffffff8e00a0f8
R13: dffffc0000000000 R14: 000000000000000e R15: 0000000000000006
 handle_softirqs+0x2d8/0x990 kernel/softirq.c:554
 __do_softirq kernel/softirq.c:588 [inline]
 invoke_softirq kernel/softirq.c:428 [inline]
 __irq_exit_rcu+0xf4/0x1c0 kernel/softirq.c:637
 irq_exit_rcu+0x9/0x30 kernel/softirq.c:649
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline]
 sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1043
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:finish_task_switch+0x1ea/0x870 kernel/sched/core.c:5283
Code: c9 50 e8 f9 d0 0b 00 48 83 c4 08 4c 89 f7 e8 ed 38 00 00 0f 1f 44 00 00 4c 89 f7 e8 90 aa 24 0a e8 1b 9f 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:ffffc9000a06f688 EFLAGS: 00000282
RAX: 4ff974f4d3609f00 RBX: ffff8880296ebc00 RCX: ffffffff94739603
RDX: dffffc0000000000 RSI: ffffffff8bcabce0 RDI: ffffffff8c1f9ca0
RBP: ffffc9000a06f6d0 R08: ffffffff8fa9536f R09: 1ffffffff1f52a6d
R10: dffffc0000000000 R11: fffffbfff1f52a6e R12: 1ffff11017287e7f
R13: dffffc0000000000 R14: ffff8880b943e680 R15: ffff8880b943f3f8
 context_switch kernel/sched/core.c:5412 [inline]
 __schedule+0x17f0/0x4a50 kernel/sched/core.c:6746
 preempt_schedule_irq+0xfb/0x1c0 kernel/sched/core.c:7068
 irqentry_exit+0x5e/0x90 kernel/entry/common.c:354
 asm_sysvec_reschedule_ipi+0x1a/0x20 arch/x86/include/asm/idtentry.h:707
RIP: 0010:___sys_recvmsg net/socket.c:2845 [inline]
RIP: 0010:do_recvmmsg+0x439/0xae0 net/socket.c:2939
Code: 89 c3 31 ff 89 c6 e8 d6 97 4d f8 85 db b8 00 00 00 00 0f 49 d8 0f 88 8b 01 00 00 e8 81 93 4d f8 8b 5c 24 14 81 e3 ff ff fe ff <43> 80 3c 3e 00 74 0d 48 8d bc 24 80 01 00 00 e8 e3 52 b2 f8 48 8b
RSP: 0018:ffffc9000a06fa80 EFLAGS: 00000202
RAX: ffffffff8948b04f RBX: 0000000000000002 RCX: 0000000000040000
RDX: ffffc90018a15000 RSI: 000000000003ffff RDI: 0000000000040000
RBP: ffffc9000a06fe30 R08: ffffffff8948b03a R09: ffffc9000a06fd10
R10: dffffc0000000000 R11: fffff5200140dfac R12: 0000000000003e5c
R13: 1ffff9200140df7c R14: 1ffff9200140df80 R15: dffffc0000000000
 __sys_recvmmsg net/socket.c:3018 [inline]
 __do_sys_recvmmsg net/socket.c:3041 [inline]
 __se_sys_recvmmsg net/socket.c:3034 [inline]
 __x64_sys_recvmmsg+0x199/0x250 net/socket.c:3034
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fc51907dd69
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:00007fc519d4f0c8 EFLAGS: 00000246 ORIG_RAX: 000000000000012b
RAX: ffffffffffffffda RBX: 00007fc5191ac050 RCX: 00007fc51907dd69
RDX: 0000000000010106 RSI: 00000000200000c0 RDI: 0000000000000005
RBP: 00007fc5190ca49e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000002 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007fc5191ac050 R15: 00007ffcb8ea9f08
 </TASK>
task:syz-executor.5  state:R  running task     stack:25744 pid:31598 tgid:31597 ppid:31055  flags:0x00004002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5409 [inline]
 __schedule+0x17e8/0x4a50 kernel/sched/core.c:6746
 preempt_schedule_common+0x84/0xd0 kernel/sched/core.c:6925
 preempt_schedule+0xe1/0xf0 kernel/sched/core.c:6949
 preempt_schedule_thunk+0x1a/0x30 arch/x86/entry/thunk.S:12
 __raw_spin_unlock include/linux/spinlock_api_smp.h:143 [inline]
 _raw_spin_unlock+0x3e/0x50 kernel/locking/spinlock.c:186
 spin_unlock include/linux/spinlock.h:391 [inline]
 zap_pte_range mm/memory.c:1674 [inline]
 zap_pmd_range mm/memory.c:1722 [inline]
 zap_pud_range mm/memory.c:1751 [inline]
 zap_p4d_range mm/memory.c:1772 [inline]
 unmap_page_range+0x3dac/0x4870 mm/memory.c:1793
 unmap_vmas+0x3cc/0x5f0 mm/memory.c:1883
 exit_mmap+0x2cb/0xd60 mm/mmap.c:3269
 __mmput+0x115/0x3c0 kernel/fork.c:1346
 exit_mm+0x220/0x310 kernel/exit.c:569
 do_exit+0x99e/0x27e0 kernel/exit.c:865
 do_group_exit+0x207/0x2c0 kernel/exit.c:1027
 get_signal+0x16a1/0x1740 kernel/signal.c:2911
 arch_do_signal_or_restart+0x96/0x860 arch/x86/kernel/signal.c:310
 exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
 exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
 __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
 syscall_exit_to_user_mode+0xc9/0x370 kernel/entry/common.c:218
 do_syscall_64+0x102/0x240 arch/x86/entry/common.c:89
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f79f947dd69
RSP: 002b:00007f79fa2920c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000037
RAX: fffffffffffffe00 RBX: 00007f79f95abf80 RCX: 00007f79f947dd69
RDX: 000000000000006f RSI: 0000000000000084 RDI: 0000000000000003
RBP: 00007f79f94ca49e R08: 0000000020000180 R09: 0000000000000000
R10: 0000000020000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f79f95abf80 R15: 00007ffc100cb3b8
 </TASK>
task:kworker/u8:11   state:R  running task     stack:19896 pid:12236 tgid:12236 ppid:2      flags:0x00004000
Workqueue: netns cleanup_net
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5409 [inline]
 __schedule+0x17e8/0x4a50 kernel/sched/core.c:6746
 preempt_schedule_irq+0xfb/0x1c0 kernel/sched/core.c:7068
 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:kasan_mem_to_shadow include/linux/kasan.h:61 [inline]
RIP: 0010:memory_is_poisoned_n mm/kasan/generic.c:129 [inline]
RIP: 0010:memory_is_poisoned mm/kasan/generic.c:161 [inline]
RIP: 0010:check_region_inline mm/kasan/generic.c:180 [inline]
RIP: 0010:kasan_check_range+0x3a/0x290 mm/kasan/generic.c:189
Code: f6 0f 84 a0 01 00 00 4c 8d 04 37 49 39 f8 0f 82 56 02 00 00 48 89 fd 48 c1 ed 2f 81 fd fe ff 01 00 0f 86 43 02 00 00 48 89 fb <48> c1 eb 03 49 ba 00 00 00 00 00 fc ff df 4e 8d 1c 13 49 ff c8 4d
RSP: 0018:ffffc900091277f0 EFLAGS: 00000202
RAX: 0000000000000001 RBX: ffffffff8fa95368 RCX: ffffffff8172b1d4
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff8fa95368
RBP: 000000000001ffff R08: ffffffff8fa95370 R09: 0000000000000000
R10: dffffc0000000000 R11: fffffbfff1f52a6e R12: 1ffff92001224f0c
R13: dffffc0000000000 R14: 0000000000000000 R15: ffffffff94b364c0
 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:505 [inline]
 cpu_online include/linux/cpumask.h:1120 [inline]
 trace_lock_acquire include/trace/events/lock.h:24 [inline]
 lock_acquire+0xd4/0x550 kernel/locking/lockdep.c:5725
 rcu_lock_acquire include/linux/rcupdate.h:329 [inline]
 rcu_read_lock include/linux/rcupdate.h:781 [inline]
 inet_twsk_purge+0x154/0xa50 net/ipv4/inet_timewait_sock.c:277
 ops_exit_list net/core/net_namespace.c:178 [inline]
 cleanup_net+0x89f/0xcc0 net/core/net_namespace.c:640
 process_one_work kernel/workqueue.c:3267 [inline]
 process_scheduled_works+0xa12/0x17c0 kernel/workqueue.c:3348
 worker_thread+0x86d/0xd70 kernel/workqueue.c:3429
 kthread+0x2f2/0x390 kernel/kthread.c:388
 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>
task:kworker/u8:13   state:R  running task     stack:18992 pid:12241 tgid:12241 ppid:2      flags:0x00004000
Workqueue: bat_events batadv_iv_send_outstanding_bat_ogm_packet
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5409 [inline]
 __schedule+0x17e8/0x4a50 kernel/sched/core.c:6746
 preempt_schedule_irq+0xfb/0x1c0 kernel/sched/core.c:7068
 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:lock_acquire+0x264/0x550 kernel/locking/lockdep.c:5758
Code: 2b 00 74 08 4c 89 f7 e8 0a 50 88 00 f6 44 24 61 02 0f 85 85 01 00 00 41 f7 c7 00 02 00 00 74 01 fb 48 c7 44 24 40 0e 36 e0 45 <4b> c7 44 25 00 00 00 00 00 43 c7 44 25 09 00 00 00 00 43 c7 44 25
RSP: 0018:ffffc900099cf860 EFLAGS: 00000206
RAX: 0000000000000001 RBX: 1ffff92001339f18 RCX: 0000000000000001
RDX: dffffc0000000000 RSI: ffffffff8bcace60 RDI: ffffffff8c1f9ca0
RBP: ffffc900099cf9a8 R08: ffffffff92f41587 R09: 1ffffffff25e82b0
R10: dffffc0000000000 R11: fffffbfff25e82b1 R12: 1ffff92001339f14
R13: dffffc0000000000 R14: ffffc900099cf8c0 R15: 0000000000000246
 rcu_lock_acquire include/linux/rcupdate.h:329 [inline]
 rcu_read_lock include/linux/rcupdate.h:781 [inline]
 batadv_iv_ogm_slide_own_bcast_window net/batman-adv/bat_iv_ogm.c:754 [inline]
 batadv_iv_ogm_schedule_buff net/batman-adv/bat_iv_ogm.c:825 [inline]
 batadv_iv_ogm_schedule+0x43f/0x1090 net/batman-adv/bat_iv_ogm.c:868
 batadv_iv_send_outstanding_bat_ogm_packet+0x6fe/0x810 net/batman-adv/bat_iv_ogm.c:1712
 process_one_work kernel/workqueue.c:3267 [inline]
 process_scheduled_works+0xa12/0x17c0 kernel/workqueue.c:3348
 worker_thread+0x86d/0xd70 kernel/workqueue.c:3429
 kthread+0x2f2/0x390 kernel/kthread.c:388
 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: rcu_preempt kthread starved for 10500 jiffies! g213829 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:25048 pid:17    tgid:17    ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5409 [inline]
 __schedule+0x17e8/0x4a50 kernel/sched/core.c:6746
 __schedule_loop kernel/sched/core.c:6823 [inline]
 schedule+0x14b/0x320 kernel/sched/core.c:6838
 schedule_timeout+0x1be/0x310 kernel/time/timer.c:2582
 rcu_gp_fqs_loop+0x2df/0x1370 kernel/rcu/tree.c:2000
 rcu_gp_kthread+0xa7/0x3b0 kernel/rcu/tree.c:2202
 kthread+0x2f2/0x390 kernel/kthread.c:388
 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:
CPU: 1 PID: 31605 Comm: syz-executor.4 Not tainted 6.9.0-syzkaller-01768-ga5131c3fdf26 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
RIP: 0010:csd_lock_wait kernel/smp.c:311 [inline]
RIP: 0010:smp_call_function_many_cond+0x1899/0x2a00 kernel/smp.c:855
Code: 89 e6 83 e6 01 31 ff e8 a5 db 0b 00 41 83 e4 01 49 bc 00 00 00 00 00 fc ff df 75 07 e8 50 d7 0b 00 eb 38 f3 90 42 0f b6 04 23 <84> c0 75 11 41 f7 45 00 01 00 00 00 74 1e e8 34 d7 0b 00 eb e4 44
RSP: 0018:ffffc90003e5f960 EFLAGS: 00000293
RAX: 0000000000000000 RBX: 1ffff11017288c71 RCX: ffff8880487d3c00
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc90003e5fb60 R08: ffffffff818a6c6b R09: 1ffffffff25e82b0
R10: dffffc0000000000 R11: fffffbfff25e82b1 R12: dffffc0000000000
R13: ffff8880b9446388 R14: ffff8880b953f7c0 R15: 0000000000000000
FS:  000055559285d480(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2f12d000 CR3: 000000004907e000 CR4: 0000000000350ef0
Call Trace:
 <IRQ>
 </IRQ>
 <TASK>
 on_each_cpu_cond_mask+0x3f/0x80 kernel/smp.c:1023
 on_each_cpu include/linux/smp.h:71 [inline]
 text_poke_sync arch/x86/kernel/alternative.c:2086 [inline]
 text_poke_bp_batch+0x352/0xb30 arch/x86/kernel/alternative.c:2296
 text_poke_flush arch/x86/kernel/alternative.c:2487 [inline]
 text_poke_finish+0x30/0x50 arch/x86/kernel/alternative.c:2494
 arch_jump_label_transform_apply+0x1c/0x30 arch/x86/kernel/jump_label.c:146
 static_key_disable_cpuslocked+0xce/0x1c0 kernel/jump_label.c:235
 static_key_disable+0x1a/0x20 kernel/jump_label.c:243
 tracepoint_remove_func kernel/tracepoint.c:417 [inline]
 tracepoint_probe_unregister+0x6f2/0x990 kernel/tracepoint.c:551
 bpf_raw_tp_link_release+0x63/0x90 kernel/bpf/syscall.c:3511
 bpf_link_free+0x110/0x2d0 kernel/bpf/syscall.c:3052
 bpf_link_put_direct kernel/bpf/syscall.c:3093 [inline]
 bpf_link_release+0x7b/0x90 kernel/bpf/syscall.c:3100
 __fput+0x42b/0x8a0 fs/file_table.c:422
 __do_sys_close fs/open.c:1556 [inline]
 __se_sys_close fs/open.c:1541 [inline]
 __x64_sys_close+0x7f/0x110 fs/open.c:1541
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f5e68c7cc5a
Code: 48 3d 00 f0 ff ff 77 48 c3 0f 1f 80 00 00 00 00 48 83 ec 18 89 7c 24 0c e8 03 7f 02 00 8b 7c 24 0c 89 c2 b8 03 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 36 89 d7 89 44 24 0c e8 63 7f 02 00 8b 44 24
RSP: 002b:00007ffdb5efe170 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007f5e68c7cc5a
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000005
RBP: 00007f5e68dad980 R08: 0000001b2eb20000 R09: 0000000000000021
R10: 00000000819d5762 R11: 0000000000000293 R12: 000000000019de6d
R13: 00007f5e68dac12c R14: 00007f5e68dac120 R15: 0000000000000032
 </TASK>