INFO: task syz.2.89:6873 blocked for more than 144 seconds.
      Not tainted 6.11.0-rc5-syzkaller-gdf54f4a16f82 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.2.89        state:D stack:0     pid:6873  tgid:6872  ppid:6411   flags:0x0000000d
Call trace:
 __switch_to+0x418/0x658 arch/arm64/kernel/process.c:579
 context_switch kernel/sched/core.c:5188 [inline]
 __schedule+0x13d4/0x2418 kernel/sched/core.c:6529
 __schedule_loop kernel/sched/core.c:6606 [inline]
 schedule+0xbc/0x238 kernel/sched/core.c:6621
 schedule_timeout+0xb8/0x33c kernel/time/timer.c:2557
 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
 kthread_stop+0x1b4/0x734 kernel/kthread.c:710
 f2fs_stop_gc_thread+0x70/0xc0 fs/f2fs/gc.c:210
 f2fs_do_shutdown+0x1e4/0x5f4 fs/f2fs/file.c:2329
 f2fs_ioc_shutdown fs/f2fs/file.c:2371 [inline]
 __f2fs_ioctl+0x36c4/0xaa1c fs/f2fs/file.c:4382
 f2fs_ioctl+0x130/0x1a0 fs/f2fs/file.c:4463
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:907 [inline]
 __se_sys_ioctl fs/ioctl.c:893 [inline]
 __arm64_sys_ioctl+0x14c/0x1c8 fs/ioctl.c:893
 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:49
 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:132
 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151
 el0_svc+0x54/0x168 arch/arm64/kernel/entry-common.c:712
 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:730
 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:598

Showing all locks held in the system:
5 locks held by kworker/0:0/8:
 #0: ffff0000c276e148 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x624/0x15b8 kernel/workqueue.c:3205
 #1: ffff8000943e7c20 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x6a0/0x15b8 kernel/workqueue.c:3205
 #2: ffff0000cd410190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:1009 [inline]
 #2: ffff0000cd410190 (&dev->mutex){....}-{3:3}, at: hub_event+0x1bc/0x4280 drivers/usb/core/hub.c:5849
 #3: ffff0001056a1190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:1009 [inline]
 #3: ffff0001056a1190 (&dev->mutex){....}-{3:3}, at: usb_disconnect+0xec/0x808 drivers/usb/core/hub.c:2295
 #4: ffff0000d1d55160 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:1009 [inline]
 #4: ffff0000d1d55160 (&dev->mutex){....}-{3:3}, at: __device_driver_lock drivers/base/dd.c:1094 [inline]
 #4: ffff0000d1d55160 (&dev->mutex){....}-{3:3}, at: device_release_driver_internal+0xbc/0x698 drivers/base/dd.c:1292
1 lock held by khungtaskd/31:
 #0: ffff80008f6edba0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0xc/0x44 include/linux/rcupdate.h:325
2 locks held by kworker/u8:9/695:
2 locks held by kworker/u8:12/2113:
2 locks held by kworker/u8:13/2163:
1 lock held by udevd/6015:
2 locks held by getty/6164:
 #0: ffff0000d27630a0 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3c/0x4c drivers/tty/tty_ldsem.c:340
 #1: ffff80009838e2f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x41c/0x1228 drivers/tty/n_tty.c:2211
3 locks held by kworker/0:3/6220:
 #0: ffff0000c0028948 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x624/0x15b8 kernel/workqueue.c:3205
 #1: ffff800098c57c20 ((work_completion)(&fw_work->work)){+.+.}-{0:0}, at: process_one_work+0x6a0/0x15b8 kernel/workqueue.c:3205
 #2: ffff80008f599110 (umhelper_sem){++++}-{3:3}, at: usermodehelper_read_lock_wait+0x138/0x244 kernel/umh.c:247
2 locks held by udevd/8852:
1 lock held by syz.4.799/9911:
4 locks held by syz.3.795/9915:

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