rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P10277/1:b..l
(detected by 1, t=10506 jiffies, g=107557, q=11 ncpus=2)
task:kworker/u4:22 state:R running task stack:21152 pid:10277 ppid:2 flags:0x00004000
Workqueue: bat_events batadv_nc_worker
Call Trace:
context_switch kernel/sched/core.c:5241 [inline]
__schedule+0x132c/0x4330 kernel/sched/core.c:6554
preempt_schedule_irq+0xf7/0x1c0 kernel/sched/core.c:6866
irqentry_exit+0x53/0x80 kernel/entry/common.c:433
asm_sysvec_reschedule_ipi+0x16/0x20 arch/x86/include/asm/idtentry.h:654
RIP: 0010:lock_acquire+0x26f/0x5a0 kernel/locking/lockdep.c:5673
Code: 2b 00 74 08 4c 89 f7 e8 ef 09 76 00 f6 44 24 61 02 0f 85 84 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:ffffc9000342fa80 EFLAGS: 00000206
RAX: 0000000000000001 RBX: 1ffff92000685f5c RCX: 1ffff92000685efc
RDX: dffffc0000000000 RSI: ffffffff8aebd760 RDI: ffffffff8b3cb7e0
RBP: ffffc9000342fbd8 R08: dffffc0000000000 R09: fffffbfff204e031
R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff92000685f58
R13: dffffc0000000000 R14: ffffc9000342fae0 R15: 0000000000000246
rcu_lock_acquire+0x2a/0x30 include/linux/rcupdate.h:306
rcu_read_lock include/linux/rcupdate.h:747 [inline]
batadv_nc_purge_orig_hash net/batman-adv/network-coding.c:408 [inline]
batadv_nc_worker+0xc1/0x5b0 net/batman-adv/network-coding.c:719
process_one_work+0x8aa/0x11f0 kernel/workqueue.c:2289
worker_thread+0xa5f/0x1210 kernel/workqueue.c:2436
kthread+0x268/0x300 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
rcu: rcu_preempt kthread timer wakeup didn't happen for 10505 jiffies! g107557 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402
rcu: Possible timer handling issue on cpu=0 timer-softirq=104983
rcu: rcu_preempt kthread starved for 10506 jiffies! g107557 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->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:I stack:26712 pid:16 ppid:2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5241 [inline]
__schedule+0x132c/0x4330 kernel/sched/core.c:6554
schedule+0xbf/0x180 kernel/sched/core.c:6630
schedule_timeout+0x1b9/0x300 kernel/time/timer.c:1935
rcu_gp_fqs_loop+0x2c2/0x1010 kernel/rcu/tree.c:1660
rcu_gp_kthread+0xa3/0x3a0 kernel/rcu/tree.c:1859
kthread+0x268/0x300 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
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: 18859 Comm: syz-executor.1 Not tainted 6.1.23-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/30/2023
RIP: 0010:__lock_acquire+0x16e/0x1f80 kernel/locking/lockdep.c:4962
Code: 68 44 89 7c 24 60 44 8b a4 24 d0 00 00 00 48 c7 c0 80 60 f6 8f 48 29 c3 48 c1 fb 06 48 b9 ab aa aa aa aa aa aa aa 48 0f af cb <48> 89 c8 48 89 8c 24 80 00 00 00 41 89 cf 48 85 f6 4c 89 6c 24 48
RSP: 0018:ffffc90000007a60 EFLAGS: 00000803
RAX: ffffffff8ff66080 RBX: 0000000000002b50 RCX: 0000000000000e70
RDX: dffffc0000000000 RSI: 0000000000000001 RDI: ffff88808e668300
RBP: ffff888076d6c4c8 R08: 0000000000000001 R09: 0000000000000001
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000
R13: ffff888076d6ba80 R14: ffff88808e668300 R15: 0000000000000001
FS: 000055555630d400(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ff948cdde00 CR3: 000000002259f000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
lock_acquire+0x1f8/0x5a0 kernel/locking/lockdep.c:5669
__raw_spin_lock include/linux/spinlock_api_smp.h:133 [inline]
_raw_spin_lock+0x2a/0x40 kernel/locking/spinlock.c:154
spin_lock include/linux/spinlock.h:350 [inline]
advance_sched+0x47/0x940 net/sched/sch_taprio.c:700
__run_hrtimer kernel/time/hrtimer.c:1685 [inline]
__hrtimer_run_queues+0x5e5/0xe50 kernel/time/hrtimer.c:1749
hrtimer_interrupt+0x392/0x980 kernel/time/hrtimer.c:1811
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1096 [inline]
__sysvec_apic_timer_interrupt+0x156/0x580 arch/x86/kernel/apic/apic.c:1113
sysvec_apic_timer_interrupt+0x8c/0xb0 arch/x86/kernel/apic/apic.c:1107
asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:649
RIP: 0010:lock_acquire+0x8/0x5a0 kernel/locking/lockdep.c:5637
Code: a4 52 8e e8 4a 0c 76 00 e9 a2 fd ff ff 0f 1f 44 00 00 65 8b 05 b1 cd 98 7e a9 00 ff ff 00 0f 95 c0 c3 55 48 89 e5 41 57 41 56 <41> 55 41 54 53 48 83 e4 e0 48 81 ec 20 01 00 00 4c 89 4c 24 28 4c
RSP: 0018:ffffc900033af578 EFLAGS: 00000246
RAX: ffffffff81c812fa RBX: ffff88807337c7f0 RCX: 0000000000000002
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff8cf26660
RBP: ffffc900033af588 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff92000675ef7
R13: 1ffff92000675ef4 R14: 0000000000000000 R15: ffff88807337c7f0
rcu_lock_acquire+0x2a/0x30 include/linux/rcupdate.h:306
rcu_read_lock include/linux/rcupdate.h:747 [inline]
list_lru_count_one+0x20/0x280 mm/list_lru.c:184
list_lru_shrink_count include/linux/list_lru.h:122 [inline]
super_cache_count+0x130/0x280 fs/super.c:146
do_shrink_slab+0x7e/0xed0 mm/vmscan.c:793
shrink_slab_memcg mm/vmscan.c:915 [inline]
shrink_slab+0x574/0x8b0 mm/vmscan.c:994
shrink_node_memcgs mm/vmscan.c:6119 [inline]
shrink_node+0x767/0x2940 mm/vmscan.c:6148
shrink_zones mm/vmscan.c:6386 [inline]
do_try_to_free_pages+0x751/0x1a50 mm/vmscan.c:6448
try_to_free_mem_cgroup_pages+0x46f/0xb70 mm/vmscan.c:6763
reclaim_high+0x1dd/0x260 mm/memcontrol.c:2389
mem_cgroup_handle_over_high+0x146/0x2b0 mm/memcontrol.c:2574
resume_user_mode_work include/linux/resume_user_mode.h:58 [inline]
exit_to_user_mode_loop+0x96/0x100 kernel/entry/common.c:171
exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:204
__syscall_exit_to_user_mode_work kernel/entry/common.c:286 [inline]
syscall_exit_to_user_mode+0x60/0x270 kernel/entry/common.c:297
do_syscall_64+0x49/0xb0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f53a8c8d5d7
Code: ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffd82fdf468 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: ffffffffffffffea RBX: 00000000000002a4 RCX: 00007f53a8c8d5d7
RDX: 00007ffd82fdf53e RSI: 000000000000000a RDI: 00007ffd82fdf530
RBP: 00007ffd82fdf530 R08: 00000000ffffffff R09: 00007ffd82fdf300
R10: 000055555630e853 R11: 0000000000000246 R12: 00007f53a8ce6cdc
R13: 00007ffd82fe05f0 R14: 000055555630e810 R15: 00007ffd82fe0630