INFO: task syz-executor.2:8243 blocked for more than 143 seconds.
      Not tainted 6.8.0-rc7-syzkaller-g707081b61156 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.2  state:D stack:0     pid:8243  tgid:8242  ppid:6181   flags:0x00000005
Call trace:
 __switch_to+0x314/0x560 arch/arm64/kernel/process.c:553
 context_switch kernel/sched/core.c:5400 [inline]
 __schedule+0x1498/0x24b4 kernel/sched/core.c:6727
 __schedule_loop kernel/sched/core.c:6802 [inline]
 schedule+0xb8/0x19c kernel/sched/core.c:6817
 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:6874
 rwsem_down_write_slowpath+0xcfc/0x1aa0 kernel/locking/rwsem.c:1178
 __down_write_common kernel/locking/rwsem.c:1306 [inline]
 __down_write kernel/locking/rwsem.c:1315 [inline]
 down_write+0xb4/0xc0 kernel/locking/rwsem.c:1580
 filemap_invalidate_lock include/linux/fs.h:849 [inline]
 blkdev_fallocate+0x1d8/0x4b8 block/fops.c:800
 vfs_fallocate+0x480/0x5bc fs/open.c:328
 madvise_remove mm/madvise.c:1002 [inline]
 madvise_vma_behavior mm/madvise.c:1026 [inline]
 madvise_walk_vmas mm/madvise.c:1261 [inline]
 do_madvise+0x175c/0x3134 mm/madvise.c:1441
 __do_sys_madvise mm/madvise.c:1454 [inline]
 __se_sys_madvise mm/madvise.c:1452 [inline]
 __arm64_sys_madvise+0xa4/0xc0 mm/madvise.c:1452
 __invoke_syscall arch/arm64/kernel/syscall.c:34 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:48
 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:133
 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:152
 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:
1 lock held by khungtaskd/30:
 #0: ffff80008ee74ac0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0xc/0x44 include/linux/rcupdate.h:297
2 locks held by kworker/u4:7/662:
2 locks held by getty/5921:
 #0: ffff0000d21340a0 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3c/0x4c drivers/tty/tty_ldsem.c:340
 #1: ffff800093ff02f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x41c/0x1228 drivers/tty/n_tty.c:2201
1 lock held by syz-executor.0/6584:
1 lock held by syz-executor.3/6953:
1 lock held by syz-executor.1/7541:
1 lock held by syz-executor.2/8243:
 #0: ffff0000c149a058 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:849 [inline]
 #0: ffff0000c149a058 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_fallocate+0x1d8/0x4b8 block/fops.c:800
2 locks held by syz-executor.1/10441:
2 locks held by syz-executor.1/10442:
1 lock held by syz-executor.2/10503:
 #0: ffff0000ea869060 (&hdev->req_lock){+.+.}-{3:3}, at: hci_dev_do_reset net/bluetooth/hci_core.c:592 [inline]
 #0: ffff0000ea869060 (&hdev->req_lock){+.+.}-{3:3}, at: hci_dev_reset+0xf4/0x538 net/bluetooth/hci_core.c:663

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