INFO: task syz.4.183:5471 blocked for more than 143 seconds.
      Not tainted 6.1.140-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.4.183       state:D stack:0     pid:5471  ppid:4674   flags:0x00000009
Call trace:
 __switch_to+0x2f4/0x568 arch/arm64/kernel/process.c:555
 context_switch kernel/sched/core.c:5244 [inline]
 __schedule+0xdd4/0x1b2c kernel/sched/core.c:6561
 schedule+0xc4/0x170 kernel/sched/core.c:6637
 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:6696
 rwsem_down_read_slowpath+0x4ac/0x788 kernel/locking/rwsem.c:1094
 __down_read_common kernel/locking/rwsem.c:1261 [inline]
 __down_read kernel/locking/rwsem.c:1274 [inline]
 down_read+0xa8/0x304 kernel/locking/rwsem.c:1522
 iterate_supers+0xa8/0x1d0 fs/super.c:755
 ksys_sync+0x90/0x164 fs/sync.c:102
 __arm64_sys_sync+0x14/0x24 fs/sync.c:113
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2bc arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140
 do_el0_svc+0x58/0x13c arch/arm64/kernel/syscall.c:204
 el0_svc+0x58/0x138 arch/arm64/kernel/entry-common.c:637
 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585

Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/12:
 #0: ffff8000152476b0 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x40/0xbb4 kernel/rcu/tasks.h:517
1 lock held by rcu_tasks_trace/13:
 #0: ffff800015247ed0 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x40/0xbb4 kernel/rcu/tasks.h:517
1 lock held by khungtaskd/28:
 #0: ffff800015246d40 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0xc/0x44 include/linux/rcupdate.h:349
1 lock held by udevd/3914:
2 locks held by getty/4066:
 #0: ffff0000d6045098 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3c/0x4c drivers/tty/tty_ldsem.c:340
 #1: ffff80001ce602f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x2ec/0xf9c drivers/tty/n_tty.c:2198
2 locks held by kworker/u4:7/4410:
 #0: ffff0000c0029138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x6b4/0x13a8 kernel/workqueue.c:2265
 #1: ffff800020c97c20 ((work_completion)(&ctx->exit_work)){+.+.}-{0:0}, at: process_one_work+0x6f8/0x13a8 kernel/workqueue.c:2267
3 locks held by kworker/u4:10/4474:
1 lock held by syz.1.36/4534:
 #0: ffff0000dcbbc0e0 (&type->s_umount_key#60/1){+.+.}-{3:3}, at: alloc_super+0x1a4/0x804 fs/super.c:228
1 lock held by syz.4.183/5471:
 #0: ffff0000dcbbc0e0 (&type->s_umount_key#102){.+.+}-{3:3}, at: iterate_supers+0xa8/0x1d0 fs/super.c:755
1 lock held by syz.6.305/6004:
 #0: ffff0000dcbbc0e0 (&type->s_umount_key#102){.+.+}-{3:3}, at: iterate_supers+0xa8/0x1d0 fs/super.c:755
1 lock held by syz.0.308/6015:
 #0: ffff0000dcbbc0e0 (&type->s_umount_key#102){.+.+}-{3:3}, at: iterate_supers+0xa8/0x1d0 fs/super.c:755
1 lock held by syz.9.1307/8895:
 #0: ffff0000dcbbc0e0 (&type->s_umount_key#102){.+.+}-{3:3}, at: iterate_supers+0xa8/0x1d0 fs/super.c:755
1 lock held by syz.8.1811/10235:
 #0: ffff0000e2082310 (&sb->s_type->i_mutex_key#33){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:758 [inline]
 #0: ffff0000e2082310 (&sb->s_type->i_mutex_key#33){+.+.}-{3:3}, at: fuse_flush+0x228/0x6a0 fs/fuse/file.c:499
2 locks held by syz.8.1811/10236:
 #0: ffff00010643e460 (sb_writers#29){.+.+}-{0:0}, at: vfs_writev fs/read_write.c:933 [inline]
 #0: ffff00010643e460 (sb_writers#29){.+.+}-{0:0}, at: do_writev+0x1cc/0x380 fs/read_write.c:977
 #1: ffff0000e2082310 (&sb->s_type->i_mutex_key#33){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:758 [inline]
 #1: ffff0000e2082310 (&sb->s_type->i_mutex_key#33){+.+.}-{3:3}, at: generic_file_write_iter+0x84/0x2b0 mm/filemap.c:4003

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