INFO: task jfsCommit:100 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:100 tgid:100 ppid:2 task_flags:0x200040 flags:0x00000010 Call trace: __switch_to+0x418/0x87c arch/arm64/kernel/process.c:741 (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: 2 locks held by kworker/u8:1/13: 1 lock held by ksoftirqd/0/15: #0: ffff00019bbfda58 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested kernel/sched/core.c:639 [inline] #0: ffff00019bbfda58 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock kernel/sched/sched.h:1558 [inline] #0: ffff00019bbfda58 (&rq->__lock){-.-.}-{2:2}, at: rq_lock kernel/sched/sched.h:1885 [inline] #0: ffff00019bbfda58 (&rq->__lock){-.-.}-{2:2}, at: __schedule+0x370/0x2a7c kernel/sched/core.c:6768 1 lock held by khungtaskd/32: #0: ffff80008fa5b520 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire+0x4/0x48 include/linux/rcupdate.h:330 2 locks held by jfsCommit/100: #0: ffff0000dd350920 (&(imap->im_aglock[index])){+.+.}-{4:4}, at: diFree+0x21c/0x2510 fs/jfs/jfs_imap.c:889 #1: ffff0000f6c8ef18 (&jfs_ip->rdwrlock/1){.+.+}-{4:4}, at: diFree+0x230/0x2510 fs/jfs/jfs_imap.c:894 2 locks held by kworker/u8:5/360: 6 locks held by kworker/u8:6/499: #0: ffff0000c1843148 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0x63c/0x1558 kernel/workqueue.c:3231 #1: ffff80009cc67be0 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0x6d0/0x1558 kernel/workqueue.c:3231 #2: ffff800092ad71f0 (pernet_ops_rwsem){++++}-{4:4}, at: cleanup_net+0xf0/0x638 net/core/net_namespace.c:670 #3: ffff0000cf3760e8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:895 [inline] #3: ffff0000cf3760e8 (&dev->mutex){....}-{4:4}, at: devl_dev_lock net/devlink/devl_internal.h:108 [inline] #3: ffff0000cf3760e8 (&dev->mutex){....}-{4:4}, at: devlink_pernet_pre_exit+0xe4/0x380 net/devlink/core.c:506 #4: ffff0000e0c4c250 (&devlink->lock_key#11){+.+.}-{4:4}, at: devl_lock net/devlink/core.c:276 [inline] #4: ffff0000e0c4c250 (&devlink->lock_key#11){+.+.}-{4:4}, at: devl_dev_lock net/devlink/devl_internal.h:109 [inline] #4: ffff0000e0c4c250 (&devlink->lock_key#11){+.+.}-{4:4}, at: devlink_pernet_pre_exit+0xf0/0x380 net/devlink/core.c:506 #5: ffff800092ae4168 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:80 3 locks held by kworker/u8:15/4874: #0: ffff0000c36e7148 ((wq_completion)cfg80211){+.+.}-{0:0}, at: process_one_work+0x63c/0x1558 kernel/workqueue.c:3231 #1: ffff80009e977be0 ((work_completion)(&(&rdev->dfs_update_channels_wk)->work)){+.+.}-{0:0}, at: process_one_work+0x6d0/0x1558 kernel/workqueue.c:3231 #2: ffff800092ae4168 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:80 2 locks held by getty/6352: #0: ffff0000d573f0a0 (&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 3 locks held by kworker/1:8/7746: #0: ffff0000c0029948 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x63c/0x1558 kernel/workqueue.c:3231 #1: ffff8000a1f87be0 ((work_completion)(&data->fib_event_work)){+.+.}-{0:0}, at: process_one_work+0x6d0/0x1558 kernel/workqueue.c:3231 #2: ffff0000ce739240 (&data->fib_lock){+.+.}-{4:4}, at: nsim_fib_event_work+0x188/0x308 drivers/net/netdevsim/fib.c:1490 1 lock held by udevd/8210: 2 locks held by syz-executor/10003: #0: ffff800091bbcf08 (&ops->srcu#2){.+.+}-{0:0}, at: srcu_lock_acquire+0x18/0x54 include/linux/srcu.h:184 #1: ffff800092ae4168 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock net/core/rtnetlink.c:80 [inline] #1: ffff800092ae4168 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_nets_lock net/core/rtnetlink.c:341 [inline] #1: ffff800092ae4168 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_newlink+0x71c/0x15e8 net/core/rtnetlink.c:4071 2 locks held by syz.1.425/10099: #0: ffff0001488460e0 (&type->s_umount_key#50/1){+.+.}-{4:4}, at: alloc_super+0x210/0x908 fs/super.c:344 #1: ffff80008f901ca8 (wq_pool_mutex){+.+.}-{4:4}, at: apply_wqattrs_lock kernel/workqueue.c:5215 [inline] #1: ffff80008f901ca8 (wq_pool_mutex){+.+.}-{4:4}, at: __alloc_workqueue+0x7b4/0x16d8 kernel/workqueue.c:5768 3 locks held by syz.3.426/10114: #0: ffff800092b49830 (cb_lock){++++}-{4:4}, at: genl_rcv+0x28/0x50 net/netlink/genetlink.c:1218 #1: ffff800092ae4168 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:80 #2: ffff000147fe8788 (&rdev->wiphy.mtx){+.+.}-{4:4}, at: wiphy_lock include/net/cfg80211.h:6348 [inline] #2: ffff000147fe8788 (&rdev->wiphy.mtx){+.+.}-{4:4}, at: nl80211_pre_doit+0x238/0x760 net/wireless/nl80211.c:18005 2 locks held by sed/10122: =============================================