INFO: task ext4lazyinit:7466 blocked for more than 146 seconds.
      Not tainted 6.16.0-rc2-syzkaller-g9aa9b43d689e #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:ext4lazyinit    state:D stack:0     pid:7466  tgid:7466  ppid:2      task_flags:0x200040 flags:0x00000010
Call trace:
 __switch_to+0x414/0x834 arch/arm64/kernel/process.c:737 (T)
 context_switch kernel/sched/core.c:5396 [inline]
 __schedule+0x1414/0x2a28 kernel/sched/core.c:6785
 __schedule_loop kernel/sched/core.c:6863 [inline]
 schedule+0xb4/0x230 kernel/sched/core.c:6878
 io_schedule+0x84/0xf0 kernel/sched/core.c:7723
 bit_wait_io+0x1c/0xac kernel/sched/wait_bit.c:247
 __wait_on_bit kernel/sched/wait_bit.c:49 [inline]
 out_of_line_wait_on_bit+0x158/0x1f0 kernel/sched/wait_bit.c:64
 wait_on_bit_io include/linux/wait_bit.h:105 [inline]
 __wait_on_buffer+0x6c/0x7c fs/buffer.c:123
 wait_on_buffer include/linux/buffer_head.h:422 [inline]
 ext4_commit_super+0x300/0x4e4 fs/ext4/super.c:6224
 ext4_handle_error+0x4f8/0x7c8 fs/ext4/super.c:709
 __ext4_error+0x1f0/0x2b8 fs/ext4/super.c:820
 ext4_validate_block_bitmap+0xc30/0xfa8 fs/ext4/balloc.c:-1
 ext4_read_block_bitmap_nowait+0x52c/0x98c fs/ext4/balloc.c:557
 ext4_mb_prefetch+0x1e0/0x32c fs/ext4/mballoc.c:2749
 ext4_run_li_request fs/ext4/super.c:3684 [inline]
 ext4_lazyinit_thread+0x510/0x1744 fs/ext4/super.c:3811
 kthread+0x5fc/0x75c kernel/kthread.c:464
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:847

Showing all locks held in the system:
1 lock held by kthreadd/2:
3 locks held by kworker/u8:0/12:
3 locks held by kworker/u8:1/13:
1 lock held by khungtaskd/32:
 #0: ffff80008f819e40 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire+0x4/0x48 include/linux/rcupdate.h:330
3 locks held by kworker/u8:2/41:
3 locks held by kworker/u8:3/42:
1 lock held by pr/ttyAMA0/43:
3 locks held by kworker/u8:4/237:
3 locks held by kworker/u8:5/335:
3 locks held by kworker/u8:6/1581:
3 locks held by kworker/u8:7/1621:
4 locks held by kworker/0:2/3906:
 #0: ffff0000c0028d48 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x63c/0x155c kernel/workqueue.c:3212
 #1: ffff8000a29b7bc0 (reg_work){+.+.}-{0:0}, at: process_one_work+0x6d4/0x155c kernel/workqueue.c:3212
 #2: ffff800092872a68 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:80
 #3: ffff0000db8e0768 (&rdev->wiphy.mtx){+.+.}-{4:4}, at: class_wiphy_constructor include/net/cfg80211.h:6062 [inline]
 #3: ffff0000db8e0768 (&rdev->wiphy.mtx){+.+.}-{4:4}, at: reg_process_self_managed_hints+0xc4/0x1c0 net/wireless/reg.c:3209
3 locks held by kworker/R-ipv6_/4163:
 #0: ffff0000d25f9948 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x63c/0x155c kernel/workqueue.c:3212
 #1: ffff8000a0aa7ba0 ((work_completion)(&(&net->ipv6.addr_chk_work)->work)){+.+.}-{0:0}, at: process_one_work+0x6d4/0x155c kernel/workqueue.c:3212
 #2: ffff800092872a68 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:80
4 locks held by kworker/R-bat_e/4244:
1 lock held by klogd/6120:
2 locks held by udevd/6131:
1 lock held by dhcpcd/6185:
1 lock held by dhcpcd/6186:
2 locks held by getty/6282:
 #0: ffff0000d246b0a0 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3c/0x4c drivers/tty/tty_ldsem.c:340
 #1: ffff80009b9fb2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x34c/0xfa4 drivers/tty/n_tty.c:2222
2 locks held by syz-executor/6504:
2 locks held by syz-executor/6515:
4 locks held by syz-executor/6521:
1 lock held by syz-executor/6523:
 #0: ffff800092872a68 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:80
2 locks held by syz-executor/6524:
4 locks held by udevd/6659:
1 lock held by syz-executor/6870:
 #0: ffff0000c256e0e0 (&type->s_umount_key#31){++++}-{4:4}, at: __super_lock fs/super.c:57 [inline]
 #0: ffff0000c256e0e0 (&type->s_umount_key#31){++++}-{4:4}, at: __super_lock_excl fs/super.c:72 [inline]
 #0: ffff0000c256e0e0 (&type->s_umount_key#31){++++}-{4:4}, at: deactivate_super+0xd8/0x100 fs/super.c:506
3 locks held by kworker/u8:8/7018:
3 locks held by kworker/u8:9/7020:
3 locks held by kworker/u8:10/7021:
2 locks held by udevd/7187:
1 lock held by udevd/7397:
2 locks held by ext4lazyinit/7466:
 #0: ffff0000c256e0e0 (&type->s_umount_key#31){++++}-{4:4}, at: ext4_lazyinit_thread+0x184/0x1744 fs/ext4/super.c:3802
 #1: ffff0000c256e428 (sb_writers#3){.+.+}-{0:0}, at: kthread+0x5fc/0x75c kernel/kthread.c:464
2 locks held by dhcpcd/7483:
3 locks held by kworker/u8:11/7488:
 #0: ffff0000c0031948 ((wq_completion)events_power_efficient){+.+.}-{0:0}, at: process_one_work+0x63c/0x155c kernel/workqueue.c:3212
 #1: ffff8000a1e77bc0 ((crda_timeout).work){+.+.}-{0:0}, at: process_one_work+0x6d4/0x155c kernel/workqueue.c:3212
 #2: ffff800092872a68 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:80
3 locks held by kworker/u8:12/7490:
 #0: ffff0000c0031948 ((wq_completion)events_power_efficient){+.+.}-{0:0}, at: process_one_work+0x63c/0x155c kernel/workqueue.c:3212
 #1: ffff80009d4c7bc0 ((reg_check_chans).work){+.+.}-{0:0}, at: process_one_work+0x6d4/0x155c kernel/workqueue.c:3212
 #2: ffff800092872a68 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:80

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