INFO: task jfsCommit:99 blocked for more than 143 seconds. Tainted: G L syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:jfsCommit state:D stack:0 pid:99 tgid:99 ppid:2 task_flags:0x200040 flags:0x00000010 Call trace: __switch_to+0x418/0x87c arch/arm64/kernel/process.c:742 (T) context_switch kernel/sched/core.c:5256 [inline] __schedule+0x1250/0x2a7c kernel/sched/core.c:6863 __schedule_loop kernel/sched/core.c:6945 [inline] schedule+0xb4/0x230 kernel/sched/core.c:6960 io_schedule+0x84/0xf4 kernel/sched/core.c:7789 __lock_metapage+0x19c/0x434 fs/jfs/jfs_metapage.c:52 lock_metapage fs/jfs/jfs_metapage.c:66 [inline] __get_metapage+0x7dc/0xe90 fs/jfs/jfs_metapage.c:748 diIAGRead+0xe4/0x14c fs/jfs/jfs_imap.c:2672 diFree+0x738/0x2510 fs/jfs/jfs_imap.c:959 jfs_evict_inode+0x2c4/0x3e8 fs/jfs/inode.c:162 evict+0x4e0/0xa74 fs/inode.c:837 iput_final fs/inode.c:1951 [inline] iput+0xc54/0xfdc fs/inode.c:2003 txUpdateMap+0x798/0x8d0 fs/jfs/jfs_txnmgr.c:2368 txLazyCommit fs/jfs/jfs_txnmgr.c:2665 [inline] jfs_lazycommit+0x394/0x94c fs/jfs/jfs_txnmgr.c:2734 kthread+0x5fc/0x75c kernel/kthread.c:463 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:844 INFO: task jfsCommit:100 blocked for more than 143 seconds. Tainted: G L syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:jfsCommit state:D stack:0 pid:100 tgid:100 ppid:2 task_flags:0x200040 flags:0x00000010 Call trace: __switch_to+0x418/0x87c arch/arm64/kernel/process.c:742 (T) context_switch kernel/sched/core.c:5256 [inline] __schedule+0x1250/0x2a7c kernel/sched/core.c:6863 __schedule_loop kernel/sched/core.c:6945 [inline] schedule+0xb4/0x230 kernel/sched/core.c:6960 io_schedule+0x84/0xf4 kernel/sched/core.c:7789 __lock_metapage+0x19c/0x434 fs/jfs/jfs_metapage.c:52 lock_metapage fs/jfs/jfs_metapage.c:66 [inline] __get_metapage+0x7dc/0xe90 fs/jfs/jfs_metapage.c:748 diIAGRead+0xe4/0x14c fs/jfs/jfs_imap.c:2672 diFree+0x738/0x2510 fs/jfs/jfs_imap.c:959 jfs_evict_inode+0x2c4/0x3e8 fs/jfs/inode.c:162 evict+0x4e0/0xa74 fs/inode.c:837 iput_final fs/inode.c:1951 [inline] iput+0xc54/0xfdc fs/inode.c:2003 txUpdateMap+0x798/0x8d0 fs/jfs/jfs_txnmgr.c:2368 txLazyCommit fs/jfs/jfs_txnmgr.c:2665 [inline] jfs_lazycommit+0x394/0x94c fs/jfs/jfs_txnmgr.c:2734 kthread+0x5fc/0x75c kernel/kthread.c:463 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:844 Showing all locks held in the system: 1 lock held by khungtaskd/32: #0: ffff80008fa5b6e0 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire+0x4/0x48 include/linux/rcupdate.h:330 3 locks held by kworker/u8:2/41: 2 locks held by kworker/u8:3/42: 2 locks held by jfsCommit/99: #0: ffff0000dff50920 (&(imap->im_aglock[index])){+.+.}-{4:4}, at: diFree+0x21c/0x2510 fs/jfs/jfs_imap.c:889 #1: ffff0000f9cf4150 (&jfs_ip->rdwrlock/1){.+.+}-{4:4}, at: diFree+0x230/0x2510 fs/jfs/jfs_imap.c:894 2 locks held by jfsCommit/100: #0: ffff0000c35f8920 (&(imap->im_aglock[index])){+.+.}-{4:4}, at: diFree+0x21c/0x2510 fs/jfs/jfs_imap.c:889 #1: ffff0000f9e0a5d8 (&jfs_ip->rdwrlock/1){.+.+}-{4:4}, at: diFree+0x230/0x2510 fs/jfs/jfs_imap.c:894 4 locks held by kworker/u8:5/403: 1 lock held by udevd/6209: 2 locks held by getty/6352: #0: ffff0000d4a130a0 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3c/0x4c drivers/tty/tty_ldsem.c:340 #1: ffff800099f1e2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x34c/0xfc8 drivers/tty/n_tty.c:2211 2 locks held by syz-executor/6568: #0: ffff0000fa8820e0 (&type->s_umount_key#66){++++}-{4:4}, at: __super_lock fs/super.c:57 [inline] #0: ffff0000fa8820e0 (&type->s_umount_key#66){++++}-{4:4}, at: __super_lock_excl fs/super.c:72 [inline] #0: ffff0000fa8820e0 (&type->s_umount_key#66){++++}-{4:4}, at: deactivate_super+0xd8/0x100 fs/super.c:506 #1: ffff80008fe9e168 (jfs_log_mutex){+.+.}-{4:4}, at: lmLogClose+0xb0/0x4c4 fs/jfs/jfs_logmgr.c:1443 2 locks held by syz-executor/6571: #0: ffff0000c4dee0e0 (&type->s_umount_key#66){++++}-{4:4}, at: __super_lock fs/super.c:57 [inline] #0: ffff0000c4dee0e0 (&type->s_umount_key#66){++++}-{4:4}, at: __super_lock_excl fs/super.c:72 [inline] #0: ffff0000c4dee0e0 (&type->s_umount_key#66){++++}-{4:4}, at: deactivate_super+0xd8/0x100 fs/super.c:506 #1: ffff80008fe9e168 (jfs_log_mutex){+.+.}-{4:4}, at: lmLogClose+0xb0/0x4c4 fs/jfs/jfs_logmgr.c:1443 2 locks held by syz-executor/6573: #0: ffff0000d21880e0 (&type->s_umount_key#66){++++}-{4:4}, at: __super_lock fs/super.c:57 [inline] #0: ffff0000d21880e0 (&type->s_umount_key#66){++++}-{4:4}, at: __super_lock_excl fs/super.c:72 [inline] #0: ffff0000d21880e0 (&type->s_umount_key#66){++++}-{4:4}, at: deactivate_super+0xd8/0x100 fs/super.c:506 #1: ffff80008fe9e168 (jfs_log_mutex){+.+.}-{4:4}, at: lmLogClose+0xb0/0x4c4 fs/jfs/jfs_logmgr.c:1443 2 locks held by syz-executor/6575: #0: ffff0000e54c00e0 (&type->s_umount_key#66){++++}-{4:4}, at: __super_lock fs/super.c:57 [inline] #0: ffff0000e54c00e0 (&type->s_umount_key#66){++++}-{4:4}, at: __super_lock_excl fs/super.c:72 [inline] #0: ffff0000e54c00e0 (&type->s_umount_key#66){++++}-{4:4}, at: deactivate_super+0xd8/0x100 fs/super.c:506 #1: ffff80008fe9e168 (jfs_log_mutex){+.+.}-{4:4}, at: lmLogClose+0xb0/0x4c4 fs/jfs/jfs_logmgr.c:1443 2 locks held by syz-executor/7595: #0: ffff0000dea3c0e0 (&type->s_umount_key#66){++++}-{4:4}, at: __super_lock fs/super.c:57 [inline] #0: ffff0000dea3c0e0 (&type->s_umount_key#66){++++}-{4:4}, at: __super_lock_excl fs/super.c:72 [inline] #0: ffff0000dea3c0e0 (&type->s_umount_key#66){++++}-{4:4}, at: deactivate_super+0xd8/0x100 fs/super.c:506 #1: ffff80008fe9e168 (jfs_log_mutex){+.+.}-{4:4}, at: lmLogClose+0xb0/0x4c4 fs/jfs/jfs_logmgr.c:1443 2 locks held by syz-executor/7727: #0: ffff0000d24c80e0 (&type->s_umount_key#66){++++}-{4:4}, at: __super_lock fs/super.c:57 [inline] #0: ffff0000d24c80e0 (&type->s_umount_key#66){++++}-{4:4}, at: __super_lock_excl fs/super.c:72 [inline] #0: ffff0000d24c80e0 (&type->s_umount_key#66){++++}-{4:4}, at: deactivate_super+0xd8/0x100 fs/super.c:506 #1: ffff80008fe9e168 (jfs_log_mutex){+.+.}-{4:4}, at: lmLogClose+0xb0/0x4c4 fs/jfs/jfs_logmgr.c:1443 2 locks held by syz-executor/7954: #0: ffff0000ca6d80e0 (&type->s_umount_key#66){++++}-{4:4}, at: __super_lock fs/super.c:57 [inline] #0: ffff0000ca6d80e0 (&type->s_umount_key#66){++++}-{4:4}, at: __super_lock_excl fs/super.c:72 [inline] #0: ffff0000ca6d80e0 (&type->s_umount_key#66){++++}-{4:4}, at: deactivate_super+0xd8/0x100 fs/super.c:506 #1: ffff80008fe9e168 (jfs_log_mutex){+.+.}-{4:4}, at: lmLogClose+0xb0/0x4c4 fs/jfs/jfs_logmgr.c:1443 3 locks held by kworker/0:8/8215: 2 locks held by syz.5.170/8270: #0: ffff0000dde140e0 (&type->s_umount_key#66){++++}-{4:4}, at: __super_lock fs/super.c:57 [inline] #0: ffff0000dde140e0 (&type->s_umount_key#66){++++}-{4:4}, at: __super_lock_excl fs/super.c:72 [inline] #0: ffff0000dde140e0 (&type->s_umount_key#66){++++}-{4:4}, at: deactivate_super+0xd8/0x100 fs/super.c:506 #1: ffff80008fe9e168 (jfs_log_mutex){+.+.}-{4:4}, at: lmLogClose+0xb0/0x4c4 fs/jfs/jfs_logmgr.c:1443 2 locks held by syz-executor/8373: #0: ffff0000e55fa0e0 (&type->s_umount_key#66){++++}-{4:4}, at: __super_lock fs/super.c:57 [inline] #0: ffff0000e55fa0e0 (&type->s_umount_key#66){++++}-{4:4}, at: __super_lock_excl fs/super.c:72 [inline] #0: ffff0000e55fa0e0 (&type->s_umount_key#66){++++}-{4:4}, at: deactivate_super+0xd8/0x100 fs/super.c:506 #1: ffff80008fe9e168 (jfs_log_mutex){+.+.}-{4:4}, at: lmLogClose+0xb0/0x4c4 fs/jfs/jfs_logmgr.c:1443 1 lock held by udevd/11448: 2 locks held by udevd/11456: 2 locks held by syz.3.729/11789: 1 lock held by syz.7.733/11805: 1 lock held by syz.0.734/11819: 1 lock held by dhcpcd-run-hook/11813: =============================================