INFO: task kworker/u10:0:6497 blocked for more than 430 seconds.
      Not tainted 6.14.0-rc1-syzkaller-g245aece3750d #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/u10:0   state:D stack:0     pid:6497  tgid:6497  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events_unbound bpf_map_free_deferred
Call Trace:
[<ffffffff8624d1e2>] context_switch kernel/sched/core.c:5377 [inline]
[<ffffffff8624d1e2>] __schedule+0xe4c/0x3d70 kernel/sched/core.c:6764
[<ffffffff862501ca>] __schedule_loop kernel/sched/core.c:6841 [inline]
[<ffffffff862501ca>] schedule+0xc4/0x324 kernel/sched/core.c:6856
[<ffffffff86264482>] schedule_timeout+0x1c6/0x28a kernel/time/sleep_timeout.c:75
[<ffffffff86251d06>] do_wait_for_common kernel/sched/completion.c:95 [inline]
[<ffffffff86251d06>] __wait_for_common+0x1ca/0x4b6 kernel/sched/completion.c:116
[<ffffffff8625200c>] wait_for_common kernel/sched/completion.c:127 [inline]
[<ffffffff8625200c>] wait_for_completion+0x1a/0x22 kernel/sched/completion.c:148
[<ffffffff8036cdca>] rcu_barrier+0x2dc/0x6cc kernel/rcu/tree.c:3809
[<ffffffff806f6c48>] dev_map_free+0x11c/0x6bc kernel/bpf/devmap.c:214
[<ffffffff805955ca>] bpf_map_free kernel/bpf/syscall.c:841 [inline]
[<ffffffff805955ca>] bpf_map_free_deferred+0x226/0x47a kernel/bpf/syscall.c:867
[<ffffffff801b3668>] process_one_work+0x96a/0x1f3a kernel/workqueue.c:3236
[<ffffffff801b667a>] process_scheduled_works kernel/workqueue.c:3317 [inline]
[<ffffffff801b667a>] worker_thread+0x5be/0xdc6 kernel/workqueue.c:3398
[<ffffffff801d3b2e>] kthread+0x37e/0x7b6 kernel/kthread.c:464
[<ffffffff8626888e>] ret_from_fork+0xe/0x18 arch/riscv/kernel/entry.S:327

Showing all locks held in the system:
2 locks held by kworker/0:1/9:
2 locks held by ksoftirqd/0/16:
2 locks held by kworker/u10:1/34:
 #0: ffffaf8011a89148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x848/0x1f3a kernel/workqueue.c:3211
 #1: ffff8f8000247bd0 ((work_completion)(&sub_info->work)){+.+.}-{0:0}, at: process_one_work+0x870/0x1f3a kernel/workqueue.c:3211
1 lock held by khungtaskd/38:
 #0: ffffffff883d8200 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x68/0x288 kernel/locking/lockdep.c:6742
1 lock held by syslogd/2990:
2 locks held by getty/3142:
 #0: ffffaf80185af0a0 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3a/0x46 drivers/tty/tty_ldsem.c:340
 #1: ffff8f800008b2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0xd7c/0x129a drivers/tty/n_tty.c:2211
2 locks held by syz-executor/3170:
2 locks held by kworker/1:0/6031:
3 locks held by kworker/u10:0/6497:
 #0: ffffaf8011a89148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x848/0x1f3a kernel/workqueue.c:3211
 #1: ffff8f8001eb7bd0 ((work_completion)(&map->work)){+.+.}-{0:0}, at: process_one_work+0x870/0x1f3a kernel/workqueue.c:3211
 #2: ffffffff883e8380 (rcu_state.barrier_mutex){+.+.}-{4:4}, at: rcu_barrier+0x56/0x6cc kernel/rcu/tree.c:3741
2 locks held by kworker/0:0/6850:
3 locks held by kworker/u10:4/7342:
 #0: ffffaf8011a89148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x848/0x1f3a kernel/workqueue.c:3211
 #1: ffff8f8001787bd0 ((linkwatch_work).work){+.+.}-{0:0}, at: process_one_work+0x870/0x1f3a kernel/workqueue.c:3211
 #2: ffffffff898011c8 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x22/0x2a net/core/rtnetlink.c:79
2 locks held by kworker/0:4/7867:
3 locks held by kworker/u10:6/7872:
3 locks held by kworker/0:6/7884:
2 locks held by kworker/0:7/7889:
3 locks held by kworker/u10:8/7908:
3 locks held by kworker/0:8/7919:
2 locks held by kworker/0:9/7952:
1 lock held by syz.2.1331/7962:
 #0: ffffffff883e8380 (rcu_state.barrier_mutex){+.+.}-{4:4}, at: rcu_barrier+0x56/0x6cc kernel/rcu/tree.c:3741
3 locks held by kworker/u10:9/7984:
2 locks held by kworker/0:11/8006:
1 lock held by syz.3.1353/8197:
 #0: ffffffff883e8380 (rcu_state.barrier_mutex){+.+.}-{4:4}, at: rcu_barrier+0x56/0x6cc kernel/rcu/tree.c:3741
3 locks held by syz-executor/8332:
3 locks held by kworker/u10:11/8395:

=============================================

NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 38 Comm: khungtaskd Not tainted 6.14.0-rc1-syzkaller-g245aece3750d #0
Hardware name: riscv-virtio,qemu (DT)
Call Trace:
[<ffffffff80074518>] dump_backtrace+0x2e/0x3c arch/riscv/kernel/stacktrace.c:132
[<ffffffff80003206>] show_stack+0x30/0x3c arch/riscv/kernel/stacktrace.c:138
[<ffffffff8005fa4c>] __dump_stack lib/dump_stack.c:94 [inline]
[<ffffffff8005fa4c>] dump_stack_lvl+0x12e/0x1a6 lib/dump_stack.c:120
[<ffffffff8005fae0>] dump_stack+0x1c/0x24 lib/dump_stack.c:129
[<ffffffff86206bf4>] nmi_cpu_backtrace+0x3b0/0x3b2 lib/nmi_backtrace.c:113
[<ffffffff86206eac>] nmi_trigger_cpumask_backtrace+0x2b6/0x458 lib/nmi_backtrace.c:62
[<ffffffff80080416>] arch_trigger_cpumask_backtrace+0x2c/0x3e arch/riscv/kernel/smp.c:348
[<ffffffff804ddfbc>] trigger_all_cpu_backtrace include/linux/nmi.h:162 [inline]
[<ffffffff804ddfbc>] check_hung_uninterruptible_tasks kernel/hung_task.c:236 [inline]
[<ffffffff804ddfbc>] watchdog+0xcf2/0x11de kernel/hung_task.c:399
[<ffffffff801d3b2e>] kthread+0x37e/0x7b6 kernel/kthread.c:464
[<ffffffff8626888e>] ret_from_fork+0xe/0x18 arch/riscv/kernel/entry.S:327
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 8006 Comm: kworker/0:11 Not tainted 6.14.0-rc1-syzkaller-g245aece3750d #0
Hardware name: riscv-virtio,qemu (DT)
Workqueue: events_power_efficient neigh_periodic_work
epc : preempt_count include/asm-generic/preempt.h:11 [inline]
epc : should_resched include/asm-generic/preempt.h:77 [inline]
epc : __local_bh_enable_ip+0x38e/0x5e8 kernel/softirq.c:396
 ra : __local_bh_enable_ip+0x38a/0x5e8 kernel/softirq.c:394
epc : ffffffff80159166 ra : ffffffff80159162 sp : ffff8f8000007570
 gp : ffffffff89c1d3c0 tp : ffffaf801b191a40 t0 : f38912d922349e9c
 t1 : 0000000000000000 t2 : 0000000000000005 s0 : ffff8f80000075c0
 s1 : 0000000000000102 a0 : 0000000000000000 a1 : ffffffff86842140
 a2 : 0000000000000003 a3 : 0000000000000101 a4 : 0000000000000001
 a5 : 0000000000084cbc a6 : ffffaf801b1925b8 a7 : 1ffff5f0036324b7
 s2 : ffffaf801b191a40 s3 : ffffffff8586755a s4 : 0000000000000001
 s5 : ffffffff90fcb3a0 s6 : 1ffff5f003632349 s7 : ffffffff89c5c940
 s8 : ffff8f8000007800 s9 : dfffffff00000000 s10: ffffaf8043bd1100
 s11: ffff8f80000077a0 t3 : 1ffff5f0032d7601 t4 : ffffffff87663868
 t5 : ffffaf801c75a128 t6 : 000000000000000a
status: 0000000200000120 badaddr: 0000000000000000 cause: 8000000000000001
[<ffffffff80159166>] arch_local_irq_enable arch/riscv/include/asm/irqflags.h:21 [inline]
[<ffffffff80159166>] __local_bh_enable_ip+0x38e/0x5e8 kernel/softirq.c:394
[<ffffffff85867580>] local_bh_enable include/linux/bottom_half.h:33 [inline]
[<ffffffff85867580>] ipt_do_table+0xe9c/0x1d56 net/ipv4/netfilter/ip_tables.c:357
[<ffffffff8539d320>] nf_hook_entry_hookfn include/linux/netfilter.h:154 [inline]
[<ffffffff8539d320>] nf_hook_slow+0xb8/0x1ec net/netfilter/core.c:626
[<ffffffff855bdfde>] nf_hook include/linux/netfilter.h:269 [inline]
[<ffffffff855bdfde>] NF_HOOK include/linux/netfilter.h:312 [inline]
[<ffffffff855bdfde>] ip_rcv+0x20e/0x44e net/ipv4/ip_input.c:567
[<ffffffff84f9d57c>] __netif_receive_skb_one_core+0x106/0x16e net/core/dev.c:5828
[<ffffffff84f9d7fc>] __netif_receive_skb+0x2c/0x144 net/core/dev.c:5941
[<ffffffff84f9e9fc>] process_backlog+0x4f6/0x1cb0 net/core/dev.c:6289
[<ffffffff84fa3392>] __napi_poll.constprop.0+0xaa/0x4b8 net/core/dev.c:7106
[<ffffffff84fa41b2>] napi_poll net/core/dev.c:7175 [inline]
[<ffffffff84fa41b2>] net_rx_action+0xa12/0xf10 net/core/dev.c:7297
[<ffffffff80156a7a>] handle_softirqs+0x4b2/0x132e kernel/softirq.c:561
[<ffffffff86268968>] __do_softirq+0x12/0x1a kernel/softirq.c:595
[<ffffffff80067060>] ___do_softirq+0x18/0x20 arch/riscv/kernel/irq.c:85
[<ffffffff862688ca>] call_on_irq_stack+0x32/0x40 arch/riscv/kernel/entry.S:356