INFO: task kworker/u10:5:4726 blocked for more than 429 seconds.
      Not tainted 6.16.0-rc1-syzkaller-g19272b37aa4f #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/u10:5   state:D stack:0     pid:4726  tgid:4726  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events_unbound bpf_map_free_deferred
Call Trace:
[<ffffffff86388df4>] context_switch kernel/sched/core.c:5396 [inline]
[<ffffffff86388df4>] __schedule+0x1022/0x4094 kernel/sched/core.c:6785
[<ffffffff8638bf2a>] __schedule_loop kernel/sched/core.c:6863 [inline]
[<ffffffff8638bf2a>] schedule+0xc4/0x35e kernel/sched/core.c:6878
[<ffffffff863a0702>] schedule_timeout+0x1c6/0x2ae kernel/time/sleep_timeout.c:75
[<ffffffff8638dab2>] do_wait_for_common kernel/sched/completion.c:95 [inline]
[<ffffffff8638dab2>] __wait_for_common+0x1d2/0x3e8 kernel/sched/completion.c:116
[<ffffffff8638dce2>] wait_for_common kernel/sched/completion.c:127 [inline]
[<ffffffff8638dce2>] wait_for_completion+0x1a/0x22 kernel/sched/completion.c:148
[<ffffffff80373490>] rcu_barrier+0x2dc/0x6cc kernel/rcu/tree.c:3850
[<ffffffff80713e5e>] dev_map_free+0x11c/0x6bc kernel/bpf/devmap.c:214
[<ffffffff805a4576>] bpf_map_free kernel/bpf/syscall.c:862 [inline]
[<ffffffff805a4576>] bpf_map_free_deferred+0x226/0x47a kernel/bpf/syscall.c:888
[<ffffffff801bb13c>] process_one_work+0x96a/0x1f32 kernel/workqueue.c:3238
[<ffffffff801be24c>] process_scheduled_works kernel/workqueue.c:3321 [inline]
[<ffffffff801be24c>] worker_thread+0x5ce/0xde8 kernel/workqueue.c:3402
[<ffffffff801dba5c>] kthread+0x39c/0x7d4 kernel/kthread.c:464
[<ffffffff800696de>] ret_from_fork_kernel+0x2a/0xbb2 arch/riscv/kernel/process.c:214
[<ffffffff863a6b02>] ret_from_fork_kernel_asm+0x16/0x18 arch/riscv/kernel/entry.S:327

Showing all locks held in the system:
1 lock held by khungtaskd/37:
 #0: ffffffff883dc3a0 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2a/0x1a0 kernel/locking/lockdep.c:6766
1 lock held by klogd/2987:
2 locks held by getty/3155:
 #0: ffffaf80133f90a0 (&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+0x3e4/0x12b6 drivers/tty/n_tty.c:2222
3 locks held by kworker/u10:3/3851:
2 locks held by kworker/0:3/3892:
2 locks held by kworker/0:5/4075:
4 locks held by kworker/0:6/4076:
3 locks held by kworker/u10:5/4726:
 #0: ffffaf8011a89148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x848/0x1f32 kernel/workqueue.c:3213
 #1: ffff8f8003477b70 ((work_completion)(&map->work)){+.+.}-{0:0}, at: process_one_work+0x870/0x1f32 kernel/workqueue.c:3213
 #2: ffffffff883ec5c0 (rcu_state.barrier_mutex){+.+.}-{4:4}, at: rcu_barrier+0x56/0x6cc kernel/rcu/tree.c:3782
2 locks held by kworker/0:1/4751:
3 locks held by kworker/u10:0/4830:
2 locks held by kworker/0:7/4852:
2 locks held by kworker/0:8/4857:
2 locks held by kworker/1:2/4872:
2 locks held by kworker/0:10/4913:

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

NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 37 Comm: khungtaskd Not tainted 6.16.0-rc1-syzkaller-g19272b37aa4f #0 PREEMPT 
Hardware name: riscv-virtio,qemu (DT)
Call Trace:
[<ffffffff80078a80>] dump_backtrace+0x2e/0x3c arch/riscv/kernel/stacktrace.c:132
[<ffffffff8000327a>] show_stack+0x30/0x3c arch/riscv/kernel/stacktrace.c:138
[<ffffffff80061012>] __dump_stack lib/dump_stack.c:94 [inline]
[<ffffffff80061012>] dump_stack_lvl+0x12e/0x1a6 lib/dump_stack.c:120
[<ffffffff800610a6>] dump_stack+0x1c/0x24 lib/dump_stack.c:129
[<ffffffff86340a50>] nmi_cpu_backtrace+0x3b0/0x3b2 lib/nmi_backtrace.c:113
[<ffffffff86340d08>] nmi_trigger_cpumask_backtrace+0x2b6/0x458 lib/nmi_backtrace.c:62
[<ffffffff800847ac>] arch_trigger_cpumask_backtrace+0x2c/0x3c arch/riscv/kernel/smp.c:350
[<ffffffff804ea4a8>] trigger_all_cpu_backtrace include/linux/nmi.h:158 [inline]
[<ffffffff804ea4a8>] check_hung_uninterruptible_tasks kernel/hung_task.c:307 [inline]
[<ffffffff804ea4a8>] watchdog+0xcea/0x1618 kernel/hung_task.c:470
[<ffffffff801dba5c>] kthread+0x39c/0x7d4 kernel/kthread.c:464
[<ffffffff800696de>] ret_from_fork_kernel+0x2a/0xbb2 arch/riscv/kernel/process.c:214
[<ffffffff863a6b02>] ret_from_fork_kernel_asm+0x16/0x18 arch/riscv/kernel/entry.S:327
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 4075 Comm: kworker/0:5 Not tainted 6.16.0-rc1-syzkaller-g19272b37aa4f #0 PREEMPT 
Hardware name: riscv-virtio,qemu (DT)
Workqueue: wg-crypt-wg1 wg_packet_encrypt_worker
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:414
 ra : __local_bh_enable_ip+0x38a/0x5e8 kernel/softirq.c:412
epc : ffffffff8015edbe ra : ffffffff8015edba sp : ffff8f80000073a0
 gp : ffffffff89c4eee0 tp : ffffaf8018761a40 t0 : ffff8f80000073c0
 t1 : 0000000000000000 t2 : fffffffff2f20000 s0 : ffff8f80000073f0
 s1 : 0000000000000101 a0 : 0000000000000000 a1 : ffffffff87d48a70
 a2 : 0000000000000003 a3 : 0000000000000100 a4 : 0000000000000001
 a5 : 00000000000d263a a6 : 0000000000f00000 a7 : 0000000000000000
 s2 : ffffaf8018761a40 s3 : ffffffff8597b54e s4 : 0000000000000001
 s5 : ffffffff90fff2c0 s6 : 1ffff5f0030ec349 s7 : ffffffff89c8f3c0
 s8 : ffff8f8000007620 s9 : dfffffff00000000 s10: ffff8f80000075c0
 s11: ffffaf8031734a00 t3 : 1ffff5f0061dd002 t4 : ffffffff876919c8
 t5 : ffffaf801c378128 t6 : 0000000000000002
status: 0000000200000120 badaddr: 0000000000000000 cause: 8000000000000001
[<ffffffff8015edbe>] arch_local_irq_enable arch/riscv/include/asm/irqflags.h:21 [inline]
[<ffffffff8015edbe>] __local_bh_enable_ip+0x38e/0x5e8 kernel/softirq.c:412
[<ffffffff8597b572>] local_bh_enable include/linux/bottom_half.h:33 [inline]
[<ffffffff8597b572>] ipt_do_table+0xe88/0x1c82 net/ipv4/netfilter/ip_tables.c:357
[<ffffffff854a4250>] nf_hook_entry_hookfn include/linux/netfilter.h:157 [inline]
[<ffffffff854a4250>] nf_hook_slow+0xb8/0x1ec net/netfilter/core.c:623
[<ffffffff856c916e>] nf_hook include/linux/netfilter.h:272 [inline]
[<ffffffff856c916e>] NF_HOOK include/linux/netfilter.h:315 [inline]
[<ffffffff856c916e>] ip_local_deliver+0x2ea/0x568 net/ipv4/ip_input.c:254
[<ffffffff856c7224>] dst_input include/net/dst.h:469 [inline]
[<ffffffff856c7224>] ip_rcv_finish+0x1b0/0x2d2 net/ipv4/ip_input.c:447
[<ffffffff856c94c2>] NF_HOOK include/linux/netfilter.h:317 [inline]
[<ffffffff856c94c2>] NF_HOOK include/linux/netfilter.h:311 [inline]
[<ffffffff856c94c2>] ip_rcv+0xd6/0x44e net/ipv4/ip_input.c:567
[<ffffffff85087e84>] __netif_receive_skb_one_core+0x106/0x16e net/core/dev.c:5977
[<ffffffff85088104>] __netif_receive_skb+0x2c/0x144 net/core/dev.c:6090
[<ffffffff85089304>] process_backlog+0x4f6/0x1cb0 net/core/dev.c:6442
[<ffffffff8508dc9e>] __napi_poll.constprop.0+0xaa/0x4ba net/core/dev.c:7414
[<ffffffff8508eb82>] napi_poll net/core/dev.c:7478 [inline]
[<ffffffff8508eb82>] net_rx_action+0xad4/0xefc net/core/dev.c:7605
[<ffffffff8015c6d2>] handle_softirqs+0x4b2/0x132e kernel/softirq.c:579
[<ffffffff8015d81e>] __do_softirq kernel/softirq.c:613 [inline]
[<ffffffff8015d81e>] invoke_softirq kernel/softirq.c:453 [inline]
[<ffffffff8015d81e>] __irq_exit_rcu+0x18c/0x550 kernel/softirq.c:680
[<ffffffff8015f224>] irq_exit_rcu+0x10/0xf8 kernel/softirq.c:696
[<ffffffff8637dae0>] handle_riscv_irq+0x40/0x4c arch/riscv/kernel/traps.c:388
[<ffffffff863a6b4a>] call_on_irq_stack+0x32/0x40 arch/riscv/kernel/entry.S:360