INFO: task kworker/u8:2:38 blocked for more than 143 seconds.
      Not tainted 6.13.0-rc7-syzkaller-g1950a0af2d55 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/u8:2    state:D stack:0     pid:38    tgid:38    ppid:2      flags:0x00000008
Workqueue: writeback wb_workfn (flush-7:0)
Call trace:
 __switch_to+0x414/0x788 arch/arm64/kernel/process.c:701 (T)
 context_switch kernel/sched/core.c:5369 [inline]
 __schedule+0x1744/0x27f0 kernel/sched/core.c:6756
 __schedule_loop kernel/sched/core.c:6833 [inline]
 schedule+0xbc/0x238 kernel/sched/core.c:6848
 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:6905
 __mutex_lock_common+0xeec/0x28f4 kernel/locking/mutex.c:665
 __mutex_lock kernel/locking/mutex.c:735 [inline]
 mutex_lock_nested+0x2c/0x38 kernel/locking/mutex.c:787
 jfs_commit_inode+0x1d4/0x4f8 fs/jfs/inode.c:102
 jfs_write_inode+0x128/0x200 fs/jfs/inode.c:132
 write_inode fs/fs-writeback.c:1525 [inline]
 __writeback_single_inode+0x5a0/0x15a4 fs/fs-writeback.c:1745
 writeback_sb_inodes+0x650/0x1088 fs/fs-writeback.c:1976
 __writeback_inodes_wb+0xec/0x234 fs/fs-writeback.c:2047
 wb_writeback+0x3f4/0xe9c fs/fs-writeback.c:2158
 wb_check_background_flush fs/fs-writeback.c:2228 [inline]
 wb_do_writeback fs/fs-writeback.c:2316 [inline]
 wb_workfn+0xc28/0x1048 fs/fs-writeback.c:2343
 process_one_work+0x7a8/0x15cc kernel/workqueue.c:3236
 process_scheduled_works kernel/workqueue.c:3317 [inline]
 worker_thread+0x97c/0xeec kernel/workqueue.c:3398
 kthread+0x288/0x310 kernel/kthread.c:389
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:862

Showing all locks held in the system:
1 lock held by khungtaskd/31:
 #0: ffff80008fb83160 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire+0xc/0x44 include/linux/rcupdate.h:336
4 locks held by kworker/u8:2/38:
 #0: ffff0000c20f6948 ((wq_completion)writeback){+.+.}-{0:0}, at: process_one_work+0x60c/0x15cc kernel/workqueue.c:3210
 #1: ffff800099097c20 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: process_one_work+0x6a4/0x15cc kernel/workqueue.c:3210
 #2: ffff0000d8e3c0e0 (&type->s_umount_key#43){.+.+}-{4:4}, at: super_trylock_shared+0x28/0xe4 fs/super.c:562
 #3: ffff0000dd3426a8 (&jfs_ip->commit_mutex){+.+.}-{4:4}, at: jfs_commit_inode+0x1d4/0x4f8 fs/jfs/inode.c:102
2 locks held by getty/6177:
 #0: ffff0000d6fda0a0 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3c/0x4c drivers/tty/tty_ldsem.c:340
 #1: ffff80009ba1b2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x41c/0x1228 drivers/tty/n_tty.c:2211
4 locks held by syz-executor370/6413:

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