syzbot

INFO: task jfsCommit:91 blocked for more than 143 seconds.
      Not tainted 6.1.89-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:jfsCommit       state:D stack:0     pid:91    ppid:2      flags:0x00000008
Call trace:
 __switch_to+0x320/0x754 arch/arm64/kernel/process.c:553
 context_switch kernel/sched/core.c:5245 [inline]
 __schedule+0xee4/0x1c98 kernel/sched/core.c:6558
 schedule+0xc4/0x170 kernel/sched/core.c:6634
 io_schedule+0x8c/0x188 kernel/sched/core.c:8786
 __lock_metapage+0x1cc/0x458 fs/jfs/jfs_metapage.c:50
 lock_metapage fs/jfs/jfs_metapage.c:64 [inline]
 __get_metapage+0x96c/0x1050 fs/jfs/jfs_metapage.c:639
 diIAGRead+0xe4/0x14c fs/jfs/jfs_imap.c:2669
 diFree+0x800/0x2648 fs/jfs/jfs_imap.c:956
 jfs_evict_inode+0x2d0/0x3f4 fs/jfs/inode.c:156
 evict+0x260/0x68c fs/inode.c:666
 iput_final fs/inode.c:1791 [inline]
 iput+0x7c0/0x8a4 fs/inode.c:1817
 txUpdateMap+0x73c/0x8e4 fs/jfs/jfs_txnmgr.c:2367
 txLazyCommit fs/jfs/jfs_txnmgr.c:2664 [inline]
 jfs_lazycommit+0x3a0/0x988 fs/jfs/jfs_txnmgr.c:2732
 kthread+0x250/0x2d8 kernel/kthread.c:376
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:864
INFO: task jfsCommit:92 blocked for more than 143 seconds.
      Not tainted 6.1.89-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:jfsCommit       state:D stack:0     pid:92    ppid:2      flags:0x00000008
Call trace:
 __switch_to+0x320/0x754 arch/arm64/kernel/process.c:553
 context_switch kernel/sched/core.c:5245 [inline]
 __schedule+0xee4/0x1c98 kernel/sched/core.c:6558
 schedule+0xc4/0x170 kernel/sched/core.c:6634
 io_schedule+0x8c/0x188 kernel/sched/core.c:8786
 __lock_metapage+0x1cc/0x458 fs/jfs/jfs_metapage.c:50
 lock_metapage fs/jfs/jfs_metapage.c:64 [inline]
 __get_metapage+0x96c/0x1050 fs/jfs/jfs_metapage.c:639
 diIAGRead+0xe4/0x14c fs/jfs/jfs_imap.c:2669
 diFree+0x800/0x2648 fs/jfs/jfs_imap.c:956
 jfs_evict_inode+0x2d0/0x3f4 fs/jfs/inode.c:156
 evict+0x260/0x68c fs/inode.c:666
 iput_final fs/inode.c:1791 [inline]
 iput+0x7c0/0x8a4 fs/inode.c:1817
 txUpdateMap+0x73c/0x8e4 fs/jfs/jfs_txnmgr.c:2367
 txLazyCommit fs/jfs/jfs_txnmgr.c:2664 [inline]
 jfs_lazycommit+0x3a0/0x988 fs/jfs/jfs_txnmgr.c:2732
 kthread+0x250/0x2d8 kernel/kthread.c:376
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:864

Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/12:
 #0: ffff800015a24e70 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x44/0xcf4 kernel/rcu/tasks.h:516
1 lock held by rcu_tasks_trace/13:
 #0: ffff800015a25670 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x44/0xcf4 kernel/rcu/tasks.h:516
1 lock held by khungtaskd/28:
 #0: ffff800015a24ca0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0xc/0x44 include/linux/rcupdate.h:349
2 locks held by jfsCommit/91:
 #0: ffff0000c3f88920 (&(imap->im_aglock[index])){+.+.}-{3:3}, at: diFree+0x2cc/0x2648 fs/jfs/jfs_imap.c:886
 #1: ffff0000e254ddb8 (&jfs_ip->rdwrlock/1){.+.+}-{3:3}, at: diFree+0x2e0/0x2648 fs/jfs/jfs_imap.c:891
2 locks held by jfsCommit/92:
 #0: ffff0000c89b8920 (&(imap->im_aglock[index])){+.+.}-{3:3}, at: diFree+0x2cc/0x2648 fs/jfs/jfs_imap.c:886
 #1: ffff0000e254a638 (&jfs_ip->rdwrlock/1){.+.+}-{3:3}, at: diFree+0x2e0/0x2648 fs/jfs/jfs_imap.c:891
2 locks held by getty/3984:
 #0: ffff0000d640b098 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3c/0x4c drivers/tty/tty_ldsem.c:340
 #1: ffff80001bcf02f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x414/0x1214 drivers/tty/n_tty.c:2188
2 locks held by syz-executor.1/4243:
 #0: ffff0000ea7160e0 (&type->s_umount_key#74){++++}-{3:3}, at: deactivate_super+0xe8/0x110 fs/super.c:362
 #1: ffff800015df2488 (jfs_log_mutex){+.+.}-{3:3}, at: lmLogClose+0xc8/0x4d8 fs/jfs/jfs_logmgr.c:1444
2 locks held by syz-executor.3/4253:
 #0: ffff0000f5ba60e0 (&type->s_umount_key#74){++++}-{3:3}, at: deactivate_super+0xe8/0x110 fs/super.c:362
 #1: ffff800015df2488 (jfs_log_mutex){+.+.}-{3:3}, at: lmLogClose+0xc8/0x4d8 fs/jfs/jfs_logmgr.c:1444

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