INFO: task syz.4.239:5081 blocked for more than 144 seconds.
      Not tainted 5.15.179-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.4.239       state:D stack:    0 pid: 5081 ppid:  4032 flags:0x00000009
Call trace:
 __switch_to+0x308/0x588 arch/arm64/kernel/process.c:518
 context_switch kernel/sched/core.c:5029 [inline]
 __schedule+0xf10/0x1e48 kernel/sched/core.c:6375
 schedule+0x11c/0x1c8 kernel/sched/core.c:6458
 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:6517
 rwsem_down_read_slowpath+0x5b0/0x988 kernel/locking/rwsem.c:1055
 __down_read_common kernel/locking/rwsem.c:1239 [inline]
 __down_read kernel/locking/rwsem.c:1252 [inline]
 down_read_nested+0x110/0x39c kernel/locking/rwsem.c:1624
 xfs_ilock+0x234/0x4c4 fs/xfs/xfs_inode.c:195
 xfs_filemap_map_pages+0x90/0xcc fs/xfs/xfs_file.c:1419
 do_fault_around mm/memory.c:4243 [inline]
 do_read_fault mm/memory.c:4258 [inline]
 do_fault mm/memory.c:4392 [inline]
 handle_pte_fault mm/memory.c:4650 [inline]
 __handle_mm_fault mm/memory.c:4785 [inline]
 handle_mm_fault+0x2148/0x33a8 mm/memory.c:4883
 faultin_page mm/gup.c:976 [inline]
 __get_user_pages+0x39c/0x92c mm/gup.c:1197
 populate_vma_page_range+0x200/0x290 mm/gup.c:1529
 __mm_populate+0x278/0x41c mm/gup.c:1638
 mm_populate include/linux/mm.h:2632 [inline]
 vm_mmap_pgoff+0x1fc/0x2b4 mm/util.c:556
 ksys_mmap_pgoff+0x458/0x668 mm/mmap.c:1623
 __do_sys_mmap arch/arm64/kernel/sys.c:28 [inline]
 __se_sys_mmap arch/arm64/kernel/sys.c:21 [inline]
 __arm64_sys_mmap+0xf8/0x110 arch/arm64/kernel/sys.c:21
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181
 el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:608
 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626
 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584

Showing all locks held in the system:
2 locks held by kworker/1:0/21:
1 lock held by khungtaskd/27:
 #0: ffff800014d41b60 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0xc/0x44 include/linux/rcupdate.h:311
2 locks held by kworker/u4:4/561:
 #0: ffff0000c0029138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x66c/0x11b8 kernel/workqueue.c:2283
 #1: ffff80001f9d7c00 (connector_reaper_work){+.+.}-{0:0}, at: process_one_work+0x6ac/0x11b8 kernel/workqueue.c:2285
1 lock held by udevd/3643:
2 locks held by getty/3788:
 #0: ffff0000d44b1098 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x40/0x50 drivers/tty/tty_ldsem.c:340
 #1: ffff80001d6ce2e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x414/0x1204 drivers/tty/n_tty.c:2158
1 lock held by syz-executor/4026:
2 locks held by syz-executor/4030:
2 locks held by kworker/u4:13/4398:
 #0: ffff0000c0029138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x66c/0x11b8 kernel/workqueue.c:2283
 #1: ffff800020af7c00 ((reaper_work).work){+.+.}-{0:0}, at: process_one_work+0x6ac/0x11b8 kernel/workqueue.c:2285
5 locks held by syz.4.239/5049:
2 locks held by syz.4.239/5081:
 #0: ffff0000c1e1d758 (&mm->mmap_lock){++++}-{3:3}, at: mmap_read_lock include/linux/mmap_lock.h:117 [inline]
 #0: ffff0000c1e1d758 (&mm->mmap_lock){++++}-{3:3}, at: __mm_populate+0x19c/0x41c mm/gup.c:1618
 #1: ffff0000e9309b20 (mapping.invalidate_lock#3){++++}-{3:3}, at: xfs_ilock+0x234/0x4c4 fs/xfs/xfs_inode.c:195
3 locks held by kworker/u4:19/5600:
 #0: ffff0000c21d8138 ((wq_completion)writeback){+.+.}-{0:0}, at: process_one_work+0x66c/0x11b8 kernel/workqueue.c:2283
 #1: ffff800020c77c00 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: process_one_work+0x6ac/0x11b8 kernel/workqueue.c:2285
 #2: ffff0000d67340e0 (&type->s_umount_key#72){++++}-{3:3}, at: trylock_super+0x28/0xf8 fs/super.c:418
2 locks held by syz.2.699/6578:
1 lock held by syz.5.701/6577:
 #0: ffff0000d3214618 (&mm->mmap_lock){++++}-{3:3}, at: mmap_write_lock_killable include/linux/mmap_lock.h:87 [inline]
 #0: ffff0000d3214618 (&mm->mmap_lock){++++}-{3:3}, at: vm_mmap_pgoff+0x15c/0x2b4 mm/util.c:549
1 lock held by syz.5.701/6580:

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