INFO: task jfsCommit:94 blocked for more than 145 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:jfsCommit state:D stack:0 pid:94 ppid:2 flags:0x00000008 Call trace: __switch_to+0x2f4/0x550 arch/arm64/kernel/process.c:555 context_switch kernel/sched/core.c:5245 [inline] __schedule+0xdd0/0x1b0c kernel/sched/core.c:6562 schedule+0xc4/0x170 kernel/sched/core.c:6638 io_schedule+0x84/0x154 kernel/sched/core.c:8798 __lock_metapage+0x180/0x418 fs/jfs/jfs_metapage.c:50 lock_metapage fs/jfs/jfs_metapage.c:64 [inline] __get_metapage+0x900/0xfac fs/jfs/jfs_metapage.c:639 diIAGRead+0xe4/0x14c fs/jfs/jfs_imap.c:2672 diFree+0x6f4/0x1e00 fs/jfs/jfs_imap.c:959 jfs_evict_inode+0x2c4/0x3e4 fs/jfs/inode.c:162 evict+0x3e0/0x828 fs/inode.c:705 iput_final fs/inode.c:1834 [inline] iput+0x754/0x7e4 fs/inode.c:1860 txUpdateMap+0x674/0x794 fs/jfs/jfs_txnmgr.c:2368 txLazyCommit fs/jfs/jfs_txnmgr.c:2665 [inline] jfs_lazycommit+0x354/0x908 fs/jfs/jfs_txnmgr.c:2733 kthread+0x250/0x2d8 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 Showing all locks held in the system: 1 lock held by rcu_tasks_kthre/12: #0: ffff8000153e7c30 (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: ffff8000153e8450 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x40/0xbb4 kernel/rcu/tasks.h:517 2 locks held by ksoftirqd/1/21: 1 lock held by khungtaskd/28: #0: ffff8000153e72c0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0xc/0x44 include/linux/rcupdate.h:349 2 locks held by jfsCommit/94: #0: ffff0000dc420920 (&(imap->im_aglock[index])){+.+.}-{3:3}, at: diFree+0x244/0x1e00 fs/jfs/jfs_imap.c:889 #1: ffff0000f670a638 (&jfs_ip->rdwrlock/1){.+.+}-{3:3}, at: diFree+0x258/0x1e00 fs/jfs/jfs_imap.c:894 2 locks held by getty/4078: #0: ffff0000c0933098 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3c/0x4c drivers/tty/tty_ldsem.c:340 #1: ffff80001cff62f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x2ec/0xfa0 drivers/tty/n_tty.c:2198 4 locks held by kworker/u4:11/6177: #0: ffff0000c0845138 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0x6b8/0x13a4 kernel/workqueue.c:2265 #1: ffff8000215e7c20 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0x6fc/0x13a4 kernel/workqueue.c:2267 #2: ffff800017872910 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0x134/0xa84 net/core/net_namespace.c:594 #3: ffff8000153ece40 (rcu_state.barrier_mutex){+.+.}-{3:3}, at: rcu_barrier+0x58/0x5d0 kernel/rcu/tree.c:4023 2 locks held by syz.2.1139/8011: #0: ffff0000de4c10b8 (&hdev->req_lock){+.+.}-{3:3}, at: hci_dev_do_close net/bluetooth/hci_core.c:508 [inline] #0: ffff0000de4c10b8 (&hdev->req_lock){+.+.}-{3:3}, at: hci_unregister_dev+0x1f0/0x4a4 net/bluetooth/hci_core.c:2705 #1: ffff0000de4c0078 (&hdev->lock){+.+.}-{3:3}, at: hci_dev_close_sync+0x398/0xec8 net/bluetooth/hci_sync.c:5233 1 lock held by udevd/9046: #0: ffff0000c049df38 (&sb->s_type->i_mutex_key#9){++++}-{3:3}, at: inode_lock_shared include/linux/fs.h:768 [inline] #0: ffff0000c049df38 (&sb->s_type->i_mutex_key#9){++++}-{3:3}, at: blkdev_read_iter+0x37c/0x4cc block/fops.c:667 1 lock held by udevd/9055: #0: ffff0000c04a0738 (&sb->s_type->i_mutex_key#9){++++}-{3:3}, at: inode_lock_shared include/linux/fs.h:768 [inline] #0: ffff0000c04a0738 (&sb->s_type->i_mutex_key#9){++++}-{3:3}, at: blkdev_read_iter+0x37c/0x4cc block/fops.c:667 4 locks held by kworker/u4:19/9296: #0: ffff0000c0029138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x6b8/0x13a4 kernel/workqueue.c:2265 #1: ffff800021237c20 ((work_completion)(&rdev->wiphy_work)){+.+.}-{0:0}, at: process_one_work+0x6fc/0x13a4 kernel/workqueue.c:2267 #2: ffff0000dcf387c8 (&rdev->wiphy.mtx){+.+.}-{3:3}, at: wiphy_lock include/net/cfg80211.h:5693 [inline] #2: ffff0000dcf387c8 (&rdev->wiphy.mtx){+.+.}-{3:3}, at: cfg80211_wiphy_work+0x3c/0x218 net/wireless/core.c:420 #3: ffff0000dcf3ab18 (&local->mtx){+.+.}-{3:3}, at: ieee80211_scan_work+0x54/0x1790 net/mac80211/scan.c:1079 1 lock held by syz.5.1471/9528: #0: ffff0000f69600e0 (&type->s_umount_key#65/1){+.+.}-{3:3}, at: alloc_super+0x1a4/0x800 fs/super.c:228 2 locks held by kworker/u4:20/9585: #0: ffff0000c0029138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x6b8/0x13a4 kernel/workqueue.c:2265 #1: ffff800022017c20 ((work_completion)(&sub_info->work)){+.+.}-{0:0}, at: process_one_work+0x6fc/0x13a4 kernel/workqueue.c:2267 3 locks held by syz.4.1490/9609: 2 locks held by syz.3.1492/9613: #0: ffff0000cc7640e0 (&type->s_umount_key#75/1){+.+.}-{3:3}, at: alloc_super+0x1a4/0x800 fs/super.c:228 #1: ffff0001135d9a10 (&ip->i_rw_mutex){.+.+}-{3:3}, at: __gfs2_iomap_get+0x114/0x1044 fs/gfs2/bmap.c:856 1 lock held by syz.0.1496/9626: =============================================