INFO: task jfsCommit:92 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:92 ppid:2 flags:0x00000008 Call trace: __switch_to+0x2f4/0x568 arch/arm64/kernel/process.c:555 context_switch kernel/sched/core.c:5244 [inline] __schedule+0xddc/0x1b18 kernel/sched/core.c:6561 schedule+0xc4/0x170 kernel/sched/core.c:6637 io_schedule+0x84/0x154 kernel/sched/core.c:8797 __lock_metapage+0x180/0x418 fs/jfs/jfs_metapage.c:50 lock_metapage fs/jfs/jfs_metapage.c:64 [inline] __get_metapage+0x900/0xfcc fs/jfs/jfs_metapage.c:639 diIAGRead+0xe4/0x14c fs/jfs/jfs_imap.c:2672 diFree+0x6a8/0x1de8 fs/jfs/jfs_imap.c:959 jfs_evict_inode+0x2c4/0x3e8 fs/jfs/inode.c:156 evict+0x3c8/0x810 fs/inode.c:705 iput_final fs/inode.c:1834 [inline] iput+0x764/0x7f4 fs/inode.c:1860 txUpdateMap+0x67c/0x79c fs/jfs/jfs_txnmgr.c:2367 txLazyCommit fs/jfs/jfs_txnmgr.c:2664 [inline] jfs_lazycommit+0x378/0x918 fs/jfs/jfs_txnmgr.c:2732 kthread+0x250/0x2d8 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 INFO: task jfsCommit:93 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:93 ppid:2 flags:0x00000008 Call trace: __switch_to+0x2f4/0x568 arch/arm64/kernel/process.c:555 context_switch kernel/sched/core.c:5244 [inline] __schedule+0xddc/0x1b18 kernel/sched/core.c:6561 schedule+0xc4/0x170 kernel/sched/core.c:6637 io_schedule+0x84/0x154 kernel/sched/core.c:8797 __lock_metapage+0x180/0x418 fs/jfs/jfs_metapage.c:50 lock_metapage fs/jfs/jfs_metapage.c:64 [inline] __get_metapage+0x900/0xfcc fs/jfs/jfs_metapage.c:639 diIAGRead+0xe4/0x14c fs/jfs/jfs_imap.c:2672 diFree+0x6a8/0x1de8 fs/jfs/jfs_imap.c:959 jfs_evict_inode+0x2c4/0x3e8 fs/jfs/inode.c:156 evict+0x3c8/0x810 fs/inode.c:705 iput_final fs/inode.c:1834 [inline] iput+0x764/0x7f4 fs/inode.c:1860 txUpdateMap+0x67c/0x79c fs/jfs/jfs_txnmgr.c:2367 txLazyCommit fs/jfs/jfs_txnmgr.c:2664 [inline] jfs_lazycommit+0x378/0x918 fs/jfs/jfs_txnmgr.c:2732 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: ffff800015297870 (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: ffff800015298090 (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: ffff800015296f00 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0xc/0x44 include/linux/rcupdate.h:349 2 locks held by jfsCommit/92: #0: ffff0000d4da8920 (&(imap->im_aglock[index])){+.+.}-{3:3}, at: diFree+0x21c/0x1de8 fs/jfs/jfs_imap.c:889 #1: ffff0000f41666f8 (&jfs_ip->rdwrlock/1){.+.+}-{3:3}, at: diFree+0x230/0x1de8 fs/jfs/jfs_imap.c:894 2 locks held by jfsCommit/93: #0: ffff0000f1f08920 (&(imap->im_aglock[index])){+.+.}-{3:3}, at: diFree+0x21c/0x1de8 fs/jfs/jfs_imap.c:889 #1: ffff0000f4162638 (&jfs_ip->rdwrlock/1){.+.+}-{3:3}, at: diFree+0x230/0x1de8 fs/jfs/jfs_imap.c:894 2 locks held by getty/4078: #0: ffff0000d8888098 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3c/0x4c drivers/tty/tty_ldsem.c:340 #1: ffff80002082b2f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x2ec/0xf9c drivers/tty/n_tty.c:2198 2 locks held by syz-executor/4464: #0: ffff0000deb240e0 (&type->s_umount_key#51){+.+.}-{3:3}, at: deactivate_super+0xe0/0x108 fs/super.c:362 #1: ffff80001567e868 (jfs_log_mutex){+.+.}-{3:3}, at: lmLogClose+0xb0/0x4c8 fs/jfs/jfs_logmgr.c:1444 2 locks held by syz-executor/4472: #0: ffff0000f1efc0e0 (&type->s_umount_key#51){+.+.}-{3:3}, at: deactivate_super+0xe0/0x108 fs/super.c:362 #1: ffff80001567e868 (jfs_log_mutex){+.+.}-{3:3}, at: lmLogClose+0xb0/0x4c8 fs/jfs/jfs_logmgr.c:1444 2 locks held by syz-executor/4477: #0: ffff0000de8be0e0 (&type->s_umount_key#51){+.+.}-{3:3}, at: deactivate_super+0xe0/0x108 fs/super.c:362 #1: ffff80001567e868 (jfs_log_mutex){+.+.}-{3:3}, at: lmLogClose+0xb0/0x4c8 fs/jfs/jfs_logmgr.c:1444 1 lock held by syz-executor/4481: #0: ffff0000eeae40e0 (&type->s_umount_key#51){+.+.}-{3:3}, at: deactivate_super+0xe0/0x108 fs/super.c:362 1 lock held by syz-executor/4940: #0: ffff0000ea99c0e0 (&type->s_umount_key#51){+.+.}-{3:3}, at: deactivate_super+0xe0/0x108 fs/super.c:362 1 lock held by syz-executor/4943: #0: ffff0000d37140e0 (&type->s_umount_key#51){+.+.}-{3:3}, at: deactivate_super+0xe0/0x108 fs/super.c:362 2 locks held by syz-executor/4947: #0: ffff0000d39100e0 (&type->s_umount_key#51){+.+.}-{3:3}, at: deactivate_super+0xe0/0x108 fs/super.c:362 #1: ffff80001567e868 (jfs_log_mutex){+.+.}-{3:3}, at: lmLogClose+0xb0/0x4c8 fs/jfs/jfs_logmgr.c:1444 1 lock held by syz-executor/4957: #0: ffff0000d90040e0 (&type->s_umount_key#51){+.+.}-{3:3}, at: deactivate_super+0xe0/0x108 fs/super.c:362 2 locks held by syz-executor/4960: #0: ffff0000f9cd60e0 (&type->s_umount_key#51){+.+.}-{3:3}, at: deactivate_super+0xe0/0x108 fs/super.c:362 #1: ffff80001567e868 (jfs_log_mutex){+.+.}-{3:3}, at: lmLogClose+0xb0/0x4c8 fs/jfs/jfs_logmgr.c:1444 2 locks held by udevd/5324: 4 locks held by syz-executor/5493: #0: ffff0000d5e0e460 (sb_writers#12){.+.+}-{0:0}, at: mnt_want_write+0x44/0x9c fs/namespace.c:402 #1: ffff0000f4160ec0 (&type->i_mutex_dir_key#8/1){+.+.}-{3:3}, at: inode_lock_nested include/linux/fs.h:793 [inline] #1: ffff0000f4160ec0 (&type->i_mutex_dir_key#8/1){+.+.}-{3:3}, at: do_unlinkat+0x18c/0x4e8 fs/namei.c:4381 #2: ffff0000f4162a80 (&sb->s_type->i_mutex_key#20){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:758 [inline] #2: ffff0000f4162a80 (&sb->s_type->i_mutex_key#20){+.+.}-{3:3}, at: vfs_unlink+0xd0/0x4f4 fs/namei.c:4319 #3: ffff0000f4162638 (&jfs_ip->rdwrlock#2){+.+.}-{3:3}, at: jfs_unlink+0x1b8/0x944 fs/jfs/namei.c:488 2 locks held by udevd/5998: 1 lock held by udevd/6459: 1 lock held by syz.2.862/8430: 1 lock held by syz.0.863/8434: 3 locks held by syz.4.864/8437: 2 locks held by syz.3.866/8444: =============================================