INFO: task jfsCommit:94 blocked for more than 143 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:5246 [inline] __schedule+0xdb4/0x1a6c kernel/sched/core.c:6563 schedule+0xc4/0x170 kernel/sched/core.c:6639 io_schedule+0x84/0x154 kernel/sched/core.c:8799 __lock_metapage+0x18c/0x420 fs/jfs/jfs_metapage.c:50 lock_metapage fs/jfs/jfs_metapage.c:64 [inline] __get_metapage+0x908/0xfd0 fs/jfs/jfs_metapage.c:639 diIAGRead+0xe4/0x14c fs/jfs/jfs_imap.c:2672 diFree+0x6f4/0x1e5c fs/jfs/jfs_imap.c:959 jfs_evict_inode+0x2c4/0x3e4 fs/jfs/inode.c:162 evict+0x3d8/0x824 fs/inode.c:705 iput_final fs/inode.c:1834 [inline] iput+0x728/0x7e8 fs/inode.c:1860 txUpdateMap+0x68c/0x7b0 fs/jfs/jfs_txnmgr.c:2368 txLazyCommit fs/jfs/jfs_txnmgr.c:2665 [inline] jfs_lazycommit+0x360/0x930 fs/jfs/jfs_txnmgr.c:2733 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 INFO: task jfsCommit:95 blocked for more than 143 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:jfsCommit state:D stack:0 pid:95 ppid:2 flags:0x00000008 Call trace: __switch_to+0x2f4/0x550 arch/arm64/kernel/process.c:555 context_switch kernel/sched/core.c:5246 [inline] __schedule+0xdb4/0x1a6c kernel/sched/core.c:6563 schedule+0xc4/0x170 kernel/sched/core.c:6639 io_schedule+0x84/0x154 kernel/sched/core.c:8799 __lock_metapage+0x18c/0x420 fs/jfs/jfs_metapage.c:50 lock_metapage fs/jfs/jfs_metapage.c:64 [inline] __get_metapage+0x908/0xfd0 fs/jfs/jfs_metapage.c:639 diIAGRead+0xe4/0x14c fs/jfs/jfs_imap.c:2672 diFree+0x6f4/0x1e5c fs/jfs/jfs_imap.c:959 jfs_evict_inode+0x2c4/0x3e4 fs/jfs/inode.c:162 evict+0x3d8/0x824 fs/inode.c:705 iput_final fs/inode.c:1834 [inline] iput+0x728/0x7e8 fs/inode.c:1860 txUpdateMap+0x68c/0x7b0 fs/jfs/jfs_txnmgr.c:2368 txLazyCommit fs/jfs/jfs_txnmgr.c:2665 [inline] jfs_lazycommit+0x360/0x930 fs/jfs/jfs_txnmgr.c:2733 kthread+0x254/0x2e0 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 kthreadd/2: 1 lock held by rcu_tasks_kthre/12: #0: ffff8000165f7e70 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x40/0xc48 kernel/rcu/tasks.h:517 1 lock held by rcu_tasks_trace/13: #0: ffff8000165f8690 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x40/0xc48 kernel/rcu/tasks.h:517 1 lock held by khungtaskd/28: #0: ffff8000165f7500 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0xc/0x44 include/linux/rcupdate.h:349 2 locks held by jfsCommit/94: #0: ffff0000f83b8920 (&(imap->im_aglock[index])){+.+.}-{3:3}, at: diFree+0x24c/0x1e5c fs/jfs/jfs_imap.c:889 #1: ffff0000e1becb38 (&jfs_ip->rdwrlock/1){++++}-{3:3}, at: diFree+0x264/0x1e5c fs/jfs/jfs_imap.c:894 2 locks held by jfsCommit/95: #0: ffff0000d9ab8920 (&(imap->im_aglock[index])){+.+.}-{3:3}, at: diFree+0x24c/0x1e5c fs/jfs/jfs_imap.c:889 #1: ffff0000e1a41cf8 (&jfs_ip->rdwrlock/1){++++}-{3:3}, at: diFree+0x264/0x1e5c fs/jfs/jfs_imap.c:894 2 locks held by getty/4083: #0: ffff0000d74f7098 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3c/0x4c drivers/tty/tty_ldsem.c:340 #1: ffff800021a0e2f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x2e8/0xfa8 drivers/tty/n_tty.c:2198 2 locks held by syz-executor/4328: #0: ffff0000fd3020e0 (&type->s_umount_key#55){+.+.}-{3:3}, at: deactivate_super+0xdc/0x104 fs/super.c:362 #1: ffff8000169e2428 (jfs_log_mutex){+.+.}-{3:3}, at: lmLogClose+0xb4/0x4a0 fs/jfs/jfs_logmgr.c:1444 2 locks held by syz-executor/4335: #0: ffff0000ffb680e0 (&type->s_umount_key#55){+.+.}-{3:3}, at: deactivate_super+0xdc/0x104 fs/super.c:362 #1: ffff8000169e2428 (jfs_log_mutex){+.+.}-{3:3}, at: lmLogClose+0xb4/0x4a0 fs/jfs/jfs_logmgr.c:1444 1 lock held by syz-executor/4338: #0: ffff0000dc2c20e0 (&type->s_umount_key#55){+.+.}-{3:3}, at: deactivate_super+0xdc/0x104 fs/super.c:362 2 locks held by kworker/u4:7/4465: 2 locks held by syz-executor/6233: #0: ffff0000cd8160e0 (&type->s_umount_key#55){+.+.}-{3:3}, at: deactivate_super+0xdc/0x104 fs/super.c:362 #1: ffff8000169e2428 (jfs_log_mutex){+.+.}-{3:3}, at: lmLogClose+0xb4/0x4a0 fs/jfs/jfs_logmgr.c:1444 2 locks held by syz-executor/8851: #0: ffff0000ef6d00e0 (&type->s_umount_key#55){+.+.}-{3:3}, at: deactivate_super+0xdc/0x104 fs/super.c:362 #1: ffff8000169e2428 (jfs_log_mutex){+.+.}-{3:3}, at: lmLogClose+0xb4/0x4a0 fs/jfs/jfs_logmgr.c:1444 2 locks held by kworker/u4:27/9124: 1 lock held by syz.8.1591/10831: #0: ffff8000165fd080 (rcu_state.barrier_mutex){+.+.}-{3:3}, at: rcu_barrier+0x58/0x5b8 kernel/rcu/tree.c:4023 1 lock held by syz.9.1598/10885: =============================================