INFO: task kworker/u10:2:8693 blocked for more than 430 seconds.
      Not tainted 6.16.0-rc1-syzkaller-g306e57988197 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/u10:2   state:D stack:0     pid:8693  tgid:8693  ppid:2      task_flags:0x4208060 flags:0x00000000
Workqueue: events_unbound bpf_map_free_deferred
Call Trace:
[<ffffffff86307720>] context_switch kernel/sched/core.c:5396 [inline]
[<ffffffff86307720>] __schedule+0x1022/0x4094 kernel/sched/core.c:6785
[<ffffffff8630a856>] __schedule_loop kernel/sched/core.c:6863 [inline]
[<ffffffff8630a856>] schedule+0xc4/0x35e kernel/sched/core.c:6878
[<ffffffff8631edea>] schedule_timeout+0x1c6/0x2ae kernel/time/sleep_timeout.c:75
[<ffffffff8630c3de>] do_wait_for_common kernel/sched/completion.c:95 [inline]
[<ffffffff8630c3de>] __wait_for_common+0x1d2/0x3e8 kernel/sched/completion.c:116
[<ffffffff8630c60e>] wait_for_common kernel/sched/completion.c:127 [inline]
[<ffffffff8630c60e>] wait_for_completion+0x1a/0x22 kernel/sched/completion.c:148
[<ffffffff80375b84>] rcu_barrier+0x2dc/0x6cc kernel/rcu/tree.c:3850
[<ffffffff8074bd1e>] dev_map_free+0x11c/0x6bc kernel/bpf/devmap.c:214
[<ffffffff805d641a>] bpf_map_free kernel/bpf/syscall.c:862 [inline]
[<ffffffff805d641a>] bpf_map_free_deferred+0x226/0x47a kernel/bpf/syscall.c:888
[<ffffffff801bd390>] process_one_work+0x96a/0x1f32 kernel/workqueue.c:3238
[<ffffffff801c04a0>] process_scheduled_works kernel/workqueue.c:3321 [inline]
[<ffffffff801c04a0>] worker_thread+0x5ce/0xde8 kernel/workqueue.c:3402
[<ffffffff801ddcbc>] kthread+0x39c/0x7d4 kernel/kthread.c:464
[<ffffffff8006977a>] ret_from_fork_kernel+0x2a/0xbb2 arch/riscv/kernel/process.c:214
[<ffffffff863251ea>] ret_from_fork_kernel_asm+0x16/0x18 arch/riscv/kernel/entry.S:327

Showing all locks held in the system:
2 locks held by kworker/0:1/10:
2 locks held by kworker/u10:0/27:
 #0: ffffaf8011a89148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x848/0x1f32 kernel/workqueue.c:3213
 #1: ffff8f80001d7b70 ((work_completion)(&sub_info->work)){+.+.}-{0:0}, at: process_one_work+0x870/0x1f32 kernel/workqueue.c:3213
1 lock held by khungtaskd/37:
 #0: ffffffff883dc420 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2a/0x1a0 kernel/locking/lockdep.c:6766
1 lock held by klogd/2989:
2 locks held by getty/3142:
 #0: ffffaf801d1730a0 (&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
1 lock held by syz-executor/3165:
3 locks held by kworker/u10:3/6235:
1 lock held by syz-executor/7043:
2 locks held by kworker/0:3/8029:
3 locks held by kworker/1:4/8263:
3 locks held by kworker/0:4/8549:
3 locks held by kworker/u10:2/8693:
 #0: ffffaf8011a89148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x848/0x1f32 kernel/workqueue.c:3213
 #1: ffff8f8000d97b70 ((work_completion)(&map->work)){+.+.}-{0:0}, at: process_one_work+0x870/0x1f32 kernel/workqueue.c:3213
 #2: ffffffff883ec640 (rcu_state.barrier_mutex){+.+.}-{4:4}, at: rcu_barrier+0x56/0x6cc kernel/rcu/tree.c:3782
1 lock held by syz.2.1797/8869:
4 locks held by kworker/0:2/8877:
1 lock held by syz.0.1802/8878:
 #0: ffffffff883ec640 (rcu_state.barrier_mutex){+.+.}-{4:4}, at: rcu_barrier+0x56/0x6cc kernel/rcu/tree.c:3782
2 locks held by kworker/0:5/8900:
2 locks held by kworker/0:7/8908:
2 locks held by modprobe/9270:

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

NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 37 Comm: khungtaskd Not tainted 6.16.0-rc1-syzkaller-g306e57988197 #0 PREEMPT 
Hardware name: riscv-virtio,qemu (DT)
Call Trace:
[<ffffffff80078bbe>] dump_backtrace+0x2e/0x3c arch/riscv/kernel/stacktrace.c:132
[<ffffffff8000327a>] show_stack+0x30/0x3c arch/riscv/kernel/stacktrace.c:138
[<ffffffff8006103e>] __dump_stack lib/dump_stack.c:94 [inline]
[<ffffffff8006103e>] dump_stack_lvl+0x12e/0x1a6 lib/dump_stack.c:120
[<ffffffff800610d2>] dump_stack+0x1c/0x24 lib/dump_stack.c:129
[<ffffffff862bf364>] nmi_cpu_backtrace+0x3b0/0x3b2 lib/nmi_backtrace.c:113
[<ffffffff862bf61c>] nmi_trigger_cpumask_backtrace+0x2b6/0x458 lib/nmi_backtrace.c:62
[<ffffffff800863dc>] arch_trigger_cpumask_backtrace+0x2c/0x3c arch/riscv/kernel/smp.c:350
[<ffffffff804edb80>] trigger_all_cpu_backtrace include/linux/nmi.h:158 [inline]
[<ffffffff804edb80>] check_hung_uninterruptible_tasks kernel/hung_task.c:307 [inline]
[<ffffffff804edb80>] watchdog+0xcf2/0x11de kernel/hung_task.c:470
[<ffffffff801ddcbc>] kthread+0x39c/0x7d4 kernel/kthread.c:464
[<ffffffff8006977a>] ret_from_fork_kernel+0x2a/0xbb2 arch/riscv/kernel/process.c:214
[<ffffffff863251ea>] 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: 8877 Comm: kworker/0:2 Not tainted 6.16.0-rc1-syzkaller-g306e57988197 #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 : ffffffff80160e9a ra : ffffffff80160e96 sp : ffff8f8000007410
 gp : ffffffff89c7e9c0 tp : ffffaf801c1f8000 t0 : ffff8f8000007430
 t1 : 0000000000000000 t2 : fffffffff2f20000 s0 : ffff8f8000007460
 s1 : 0000000000000102 a0 : 0000000000000000 a1 : ffffffff87d6da40
 a2 : 0000000000000003 a3 : 0000000000000101 a4 : 0000000000000001
 a5 : 0000000000091296 a6 : 0000000000f00000 a7 : 0000000000000000
 s2 : ffffaf801c1f8000 s3 : ffffffff859e9a76 s4 : 0000000000000001
 s5 : ffffffff910373c0 s6 : 1ffff5f00383f001 s7 : ffffffff89cbf9c0
 s8 : ffff8f80000076a0 s9 : dfffffff00000000 s10: ffff8f8000007640
 s11: ffffaf8042268d00 t3 : 1ffff5f006c85202 t4 : ffffffff876a8388
 t5 : ffffaf8019128128 t6 : 0000000000000002
status: 0000000200000120 badaddr: 0000000000000000 cause: 8000000000000001
[<ffffffff80160e9a>] arch_local_irq_enable arch/riscv/include/asm/irqflags.h:21 [inline]
[<ffffffff80160e9a>] __local_bh_enable_ip+0x38e/0x5e8 kernel/softirq.c:412
[<ffffffff859e9a9a>] local_bh_enable include/linux/bottom_half.h:33 [inline]
[<ffffffff859e9a9a>] ipt_do_table+0xe88/0x1c82 net/ipv4/netfilter/ip_tables.c:357
[<ffffffff855127e8>] nf_hook_entry_hookfn include/linux/netfilter.h:157 [inline]
[<ffffffff855127e8>] nf_hook_slow+0xb8/0x1ec net/netfilter/core.c:623
[<ffffffff8573764a>] nf_hook include/linux/netfilter.h:272 [inline]
[<ffffffff8573764a>] NF_HOOK include/linux/netfilter.h:315 [inline]
[<ffffffff8573764a>] ip_local_deliver+0x2ea/0x568 net/ipv4/ip_input.c:254
[<ffffffff85735700>] dst_input include/net/dst.h:469 [inline]
[<ffffffff85735700>] ip_rcv_finish+0x1b0/0x2d2 net/ipv4/ip_input.c:447
[<ffffffff8573799e>] NF_HOOK include/linux/netfilter.h:317 [inline]
[<ffffffff8573799e>] NF_HOOK include/linux/netfilter.h:311 [inline]
[<ffffffff8573799e>] ip_rcv+0xd6/0x44e net/ipv4/ip_input.c:567
[<ffffffff850f58a8>] __netif_receive_skb_one_core+0x106/0x16e net/core/dev.c:5977
[<ffffffff850f5b28>] __netif_receive_skb+0x2c/0x144 net/core/dev.c:6090
[<ffffffff850f6d28>] process_backlog+0x4f6/0x1cb0 net/core/dev.c:6442
[<ffffffff850fb6c2>] __napi_poll.constprop.0+0xaa/0x4ba net/core/dev.c:7414
[<ffffffff850fc5a6>] napi_poll net/core/dev.c:7478 [inline]
[<ffffffff850fc5a6>] net_rx_action+0xad4/0xefc net/core/dev.c:7605
[<ffffffff8015e7ae>] handle_softirqs+0x4b2/0x132e kernel/softirq.c:579
[<ffffffff863252e4>] __do_softirq+0x12/0x1a kernel/softirq.c:613
[<ffffffff8006845c>] ___do_softirq+0x18/0x20 arch/riscv/kernel/irq.c:85
[<ffffffff86325232>] call_on_irq_stack+0x32/0x40 arch/riscv/kernel/entry.S:360
vkms_vblank_simulate: vblank timer overrun