rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P11/1:b..l
rcu: (detected by 0, t=10502 jiffies, g=71309, q=657 ncpus=2)
task:kworker/u8:0 state:R running task stack:20752 pid:11 tgid:11 ppid:2 flags:0x00004000
Workqueue: bat_events batadv_nc_worker
Call Trace:
context_switch kernel/sched/core.c:5408 [inline]
__schedule+0x17e8/0x4a20 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_reschedule_ipi+0x1a/0x20 arch/x86/include/asm/idtentry.h:707
RIP: 0010:lock_release+0x630/0x9f0 kernel/locking/lockdep.c:5778
Code: 3c 3b 00 74 08 4c 89 f7 e8 cd 59 89 00 f6 84 24 91 00 00 00 02 75 77 41 f7 c5 00 02 00 00 74 01 fb 48 c7 44 24 60 0e 36 e0 45 <4b> c7 04 27 00 00 00 00 4b c7 44 27 08 00 00 00 00 65 48 8b 04 25
RSP: 0018:ffffc90000107a20 EFLAGS: 00000206
RAX: 0000000000000001 RBX: 1ffff92000020f56 RCX: ffffc90000107a03
RDX: 0000000000000002 RSI: ffffffff8bcacd00 RDI: ffffffff8c1ff840
RBP: ffffc90000107b48 R08: ffffffff8fad50af R09: 1ffffffff1f5aa15
R10: dffffc0000000000 R11: fffffbfff1f5aa16 R12: 1ffff92000020f50
R13: 0000000000000246 R14: ffffc90000107ab0 R15: dffffc0000000000
rcu_lock_release include/linux/rcupdate.h:339 [inline]
rcu_read_unlock include/linux/rcupdate.h:812 [inline]
batadv_nc_purge_orig_hash net/batman-adv/network-coding.c:412 [inline]
batadv_nc_worker+0x28b/0x610 net/batman-adv/network-coding.c:719
process_one_work kernel/workqueue.c:3231 [inline]
process_scheduled_works+0xa2e/0x1830 kernel/workqueue.c:3312
worker_thread+0x86d/0xd70 kernel/workqueue.c:3393
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
rcu: rcu_preempt kthread starved for 10350 jiffies! g71309 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:26448 pid:17 tgid:17 ppid:2 flags:0x00004000
Call Trace:
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
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: 0 Comm: swapper/1 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:mark_usage kernel/locking/lockdep.c:4566 [inline]
RIP: 0010:__lock_acquire+0xbab/0x1fd0 kernel/locking/lockdep.c:5091
Code: 4c 89 ef 48 89 ee 31 d2 e8 32 60 00 00 31 c9 48 ba 00 00 00 00 00 fc ff df 85 c0 0f 84 2e 08 00 00 48 8b 44 24 60 0f b6 04 10 <84> c0 0f 85 ec 10 00 00 48 8b 44 24 18 83 38 00 74 22 4c 89 ef 48
RSP: 0018:ffffc90000a17cb0 EFLAGS: 00000002
RAX: 0000000000000000 RBX: 00000000000e4002 RCX: 0000000000000000
RDX: dffffc0000000000 RSI: 0000000000000008 RDI: ffffffff92fab588
RBP: ffff8880176e0b30 R08: ffffffff92fab58f R09: 1ffffffff25f56b1
R10: dffffc0000000000 R11: fffffbfff25f56b2 R12: 0000000000000001
R13: ffff8880176e0000 R14: 1ffff11002edc16a R15: ffff8880176e0b50
FS: 0000000000000000(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b31422000 CR3: 0000000076b9e000 CR4: 0000000000350ef0
Call Trace:
lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5754
__raw_spin_lock_irq include/linux/spinlock_api_smp.h:119 [inline]
_raw_spin_lock_irq+0xd3/0x120 kernel/locking/spinlock.c:170
__run_hrtimer kernel/time/hrtimer.c:1691 [inline]
__hrtimer_run_queues+0x670/0xd50 kernel/time/hrtimer.c:1751
hrtimer_interrupt+0x396/0x990 kernel/time/hrtimer.c:1813
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:deref_stack_reg arch/x86/kernel/unwind_orc.c:403 [inline]
RIP: 0010:unwind_next_frame+0x10d8/0x2a00 arch/x86/kernel/unwind_orc.c:585
Code: 87 a9 01 00 00 4d 39 e5 0f 86 a0 01 00 00 49 8d 44 24 08 48 39 c8 0f 86 ad 01 00 00 4c 39 e8 0f 87 a4 01 00 00 e8 38 26 55 00 <4d> 89 fd 4c 8b 7c 24 08 e9 69 02 00 00 48 89 ac 24 80 00 00 00 4c
RSP: 0018:ffffc90000a18308 EFLAGS: 00000246
RAX: ffffffff814100c8 RBX: 0000000000000001 RCX: ffff8880176e0000
RDX: 0000000080000102 RSI: 0000000000000001 RDI: 0000000000000000
RBP: 1ffff9200014307e R08: ffffffff8141008d R09: ffffffff8140ffe6
R10: 0000000000000003 R11: ffff8880176e0000 R12: ffffc900001a7f50
R13: ffffc900001a8000 R14: 1ffff9200014307d R15: dffffc0000000000
arch_stack_walk+0x151/0x1b0 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0x118/0x1d0 kernel/stacktrace.c:122
kasan_save_stack mm/kasan/common.c:47 [inline]
kasan_save_track+0x3f/0x80 mm/kasan/common.c:68
unpoison_slab_object mm/kasan/common.c:312 [inline]
__kasan_slab_alloc+0x66/0x80 mm/kasan/common.c:338
kasan_slab_alloc include/linux/kasan.h:201 [inline]
slab_post_alloc_hook mm/slub.c:3941 [inline]
slab_alloc_node mm/slub.c:4001 [inline]
kmem_cache_alloc_node_noprof+0x16b/0x320 mm/slub.c:4044
kmalloc_reserve+0xa8/0x2a0 net/core/skbuff.c:575
__alloc_skb+0x1f3/0x440 net/core/skbuff.c:666
__netdev_alloc_skb+0x105/0x560 net/core/skbuff.c:730
netdev_alloc_skb include/linux/skbuff.h:3319 [inline]
dev_alloc_skb include/linux/skbuff.h:3332 [inline]
__ieee80211_beacon_get+0x998/0x15c0 net/mac80211/tx.c:5471
ieee80211_beacon_get_tim+0xb4/0x320 net/mac80211/tx.c:5593
ieee80211_beacon_get include/net/mac80211.h:5562 [inline]
mac80211_hwsim_beacon_tx+0x39d/0x850 drivers/net/wireless/virtual/mac80211_hwsim.c:2302
__iterate_interfaces+0x225/0x4c0 net/mac80211/util.c:772
ieee80211_iterate_active_interfaces_atomic+0xd8/0x170 net/mac80211/util.c:808
mac80211_hwsim_beacon+0xd4/0x1f0 drivers/net/wireless/virtual/mac80211_hwsim.c:2336
__run_hrtimer kernel/time/hrtimer.c:1687 [inline]
__hrtimer_run_queues+0x59d/0xd50 kernel/time/hrtimer.c:1751
hrtimer_run_softirq+0x19a/0x2c0 kernel/time/hrtimer.c:1768
handle_softirqs+0x2c6/0x970 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
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:native_irq_disable arch/x86/include/asm/irqflags.h:37 [inline]
RIP: 0010:arch_local_irq_disable arch/x86/include/asm/irqflags.h:72 [inline]
RIP: 0010:acpi_safe_halt+0x21/0x30 drivers/acpi/processor_idle.c:113
Code: 90 90 90 90 90 90 90 90 90 65 48 8b 04 25 00 d5 03 00 48 f7 00 08 00 00 00 75 10 eb 07 0f 00 2d e5 b9 a2 00 f3 0f 1e fa fb f4 e9 84 72 29 00 66 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90
RSP: 0018:ffffc900001a7d08 EFLAGS: 00000246
RAX: ffff8880176e0000 RBX: ffff8880182ef064 RCX: 00000000011aeb01
RDX: 0000000000000001 RSI: ffff8880182ef000 RDI: ffff8880182ef064
RBP: 000000000003a5b8 R08: ffff8880b9537d0b R09: 1ffff110172a6fa1
R10: dffffc0000000000 R11: ffffffff8b86ca30 R12: ffff88801b721000
R13: 0000000000000000 R14: 0000000000000001 R15: ffffffff8eace760
acpi_idle_enter+0xe4/0x140 drivers/acpi/processor_idle.c:707
cpuidle_enter_state+0x114/0x480 drivers/cpuidle/cpuidle.c:267
cpuidle_enter+0x5d/0xa0 drivers/cpuidle/cpuidle.c:388
call_cpuidle kernel/sched/idle.c:155 [inline]
cpuidle_idle_call kernel/sched/idle.c:236 [inline]
do_idle+0x375/0x5d0 kernel/sched/idle.c:332
cpu_startup_entry+0x42/0x60 kernel/sched/idle.c:430
start_secondary+0x100/0x100 arch/x86/kernel/smpboot.c:313
common_startup_64+0x13e/0x147