INFO: task kworker/0:5:32578 blocked for more than 143 seconds.
      Not tainted 6.6.0-rc7-syzkaller-g8de1e7afcc1c #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:5     state:D stack:0     pid:32578 ppid:2      flags:0x00000008
Workqueue: events nsim_fib_flush_work
Call trace:
 __switch_to+0x314/0x560 arch/arm64/kernel/process.c:556
 context_switch kernel/sched/core.c:5382 [inline]
 __schedule+0x1364/0x23b4 kernel/sched/core.c:6695
 schedule+0xc4/0x170 kernel/sched/core.c:6771
 schedule_timeout+0xb8/0x348 kernel/time/timer.c:2143
 do_wait_for_common+0x30c/0x468 kernel/sched/completion.c:95
 __wait_for_common kernel/sched/completion.c:116 [inline]
 wait_for_common kernel/sched/completion.c:127 [inline]
 wait_for_completion+0x48/0x60 kernel/sched/completion.c:148
 __flush_work+0x12c/0x1c0 kernel/workqueue.c:3407
 flush_work+0x24/0x38 kernel/workqueue.c:3428
 nsim_fib_flush_work+0x94/0x1ac drivers/net/netdevsim/fib.c:1507
 process_one_work+0x694/0x1204 kernel/workqueue.c:2630
 process_scheduled_works kernel/workqueue.c:2703 [inline]
 worker_thread+0x938/0xef4 kernel/workqueue.c:2784
 kthread+0x288/0x310 kernel/kthread.c:388
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:857

Showing all locks held in the system:
2 locks held by kworker/1:1/25:
 #0: ffff0000c0022938 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: process_one_work+0x560/0x1204 kernel/workqueue.c:2603
 #1: ffff800092e57c20 ((work_completion)(&rew->rew_work)){+.+.}-{0:0}, at: process_one_work+0x5a0/0x1204 kernel/workqueue.c:2605
1 lock held by khungtaskd/29:
 #0: ffff80008e513840 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0xc/0x44 include/linux/rcupdate.h:302
3 locks held by kworker/0:2/1360:
2 locks held by udevd/5706:
2 locks held by getty/5844:
 #0: ffff0000d70b90a0 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3c/0x4c drivers/tty/tty_ldsem.c:340
 #1: ffff800094c002f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x414/0x1214 drivers/tty/n_tty.c:2206
1 lock held by syz-executor.1/6142:
 #0: ffff80008e519178 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:325 [inline]
 #0: ffff80008e519178 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x37c/0x728 kernel/rcu/tree_exp.h:992
3 locks held by kworker/1:5/6202:
 #0: ffff0000c0020d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x560/0x1204 kernel/workqueue.c:2603
 #1: ffff800097397c20 ((work_completion)(&data->fib_event_work)){+.+.}-{0:0}, at: process_one_work+0x5a0/0x1204 kernel/workqueue.c:2605
 #2: ffff0000d74ce240 (&data->fib_lock){+.+.}-{3:3}, at: nsim_fib_event_work+0x270/0x32bc drivers/net/netdevsim/fib.c:1489
2 locks held by kworker/0:5/32578:
 #0: ffff0000c0020d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x560/0x1204 kernel/workqueue.c:2603
 #1: ffff800099227c20 ((work_completion)(&data->fib_flush_work)){+.+.}-{0:0}, at: process_one_work+0x5a0/0x1204 kernel/workqueue.c:2605
2 locks held by kworker/1:6/32582:
3 locks held by kworker/0:11/333:
 #0: ffff0000d1f66d38 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x560/0x1204 kernel/workqueue.c:2603
 #1: ffff8000991d7c20 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_one_work+0x5a0/0x1204 kernel/workqueue.c:2605
 #2: ffff800090d37728 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:78
3 locks held by kworker/1:11/463:
 #0: ffff0000d1f66d38 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x560/0x1204 kernel/workqueue.c:2603
 #1: ffff800096ff7c20 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_one_work+0x5a0/0x1204 kernel/workqueue.c:2605
 #2: ffff800090d37728 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:78
1 lock held by syz-executor.2/11094:
 #0: ffff800090d37728 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:78 [inline]
 #0: ffff800090d37728 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x704/0xdc0 net/core/rtnetlink.c:6439
1 lock held by syz-executor.4/11093:
 #0: ffff800090d37728 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:78 [inline]
 #0: ffff800090d37728 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x704/0xdc0 net/core/rtnetlink.c:6439
1 lock held by syz-executor.4/11099:
 #0: ffff800090d37728 (rtnl_mutex){+.+.}-{3:3}, at: __netlink_dump_start+0x104/0x6fc net/netlink/af_netlink.c:2335
1 lock held by syz-executor.4/11103:
 #0: ffff800090d37728 (rtnl_mutex){+.+.}-{3:3}, at: __netlink_dump_start+0x104/0x6fc net/netlink/af_netlink.c:2335
1 lock held by syz-executor.0/11121:
 #0: ffff0000c890a8b8 (&nft_net->commit_mutex){+.+.}-{3:3}, at: nf_tables_valid_genid+0x3c/0xd4 net/netfilter/nf_tables_api.c:10452

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