vxcan0: j1939_tp_rxtimer: 0xffff888075efe800: rx timeout, send abort vxcan0: j1939_tp_rxtimer: 0xffff888075efe800: abort rx timeout. Force session deactivation ====================================================== WARNING: possible circular locking dependency detected 6.6.0-rc7-syzkaller-00016-g84186fcb834e #0 Not tainted ------------------------------------------------------ kworker/1:0/23 is trying to acquire lock: ffff888076f61088 (&priv->active_session_list_lock){+.-.}-{2:2}, at: spin_lock_bh include/linux/spinlock.h:356 [inline] ffff888076f61088 (&priv->active_session_list_lock){+.-.}-{2:2}, at: j1939_session_list_lock net/can/j1939/transport.c:238 [inline] ffff888076f61088 (&priv->active_session_list_lock){+.-.}-{2:2}, at: j1939_session_activate+0x4b/0x4a0 net/can/j1939/transport.c:1564 but task is already holding lock: ffff88807d7935c8 (&jsk->sk_session_queue_lock){+.-.}-{2:2}, at: spin_lock_bh include/linux/spinlock.h:356 [inline] ffff88807d7935c8 (&jsk->sk_session_queue_lock){+.-.}-{2:2}, at: j1939_sk_queue_activate_next+0x60/0x4d0 net/can/j1939/socket.c:207 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #2 (&jsk->sk_session_queue_lock){+.-.}-{2:2}: __raw_spin_lock_bh include/linux/spinlock_api_smp.h:126 [inline] _raw_spin_lock_bh+0x33/0x40 kernel/locking/spinlock.c:178 spin_lock_bh include/linux/spinlock.h:356 [inline] j1939_sk_queue_drop_all+0x3b/0x2f0 net/can/j1939/socket.c:139 j1939_sk_netdev_event_netdown+0x7f/0x160 net/can/j1939/socket.c:1282 j1939_netdev_notify+0x1a2/0x1d0 net/can/j1939/main.c:381 notifier_call_chain+0xb6/0x3b0 kernel/notifier.c:93 call_netdevice_notifiers_info+0xb9/0x130 net/core/dev.c:1995 call_netdevice_notifiers_extack net/core/dev.c:2033 [inline] call_netdevice_notifiers net/core/dev.c:2047 [inline] __dev_notify_flags+0x1f5/0x2e0 net/core/dev.c:8667 dev_change_flags+0x122/0x170 net/core/dev.c:8703 do_setlink+0x1a2a/0x3fa0 net/core/rtnetlink.c:2880 __rtnl_newlink+0xc1d/0x1940 net/core/rtnetlink.c:3671 rtnl_newlink+0x67/0xa0 net/core/rtnetlink.c:3718 rtnetlink_rcv_msg+0x3c4/0xdf0 net/core/rtnetlink.c:6442 netlink_rcv_skb+0x16b/0x440 net/netlink/af_netlink.c:2545 netlink_unicast_kernel net/netlink/af_netlink.c:1342 [inline] netlink_unicast+0x536/0x810 net/netlink/af_netlink.c:1368 netlink_sendmsg+0x93c/0xe40 net/netlink/af_netlink.c:1910 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg+0xd5/0x180 net/socket.c:745 ____sys_sendmsg+0x6ac/0x940 net/socket.c:2558 ___sys_sendmsg+0x135/0x1d0 net/socket.c:2612 __sys_sendmsg+0x117/0x1e0 net/socket.c:2641 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd -> #1 (&priv->j1939_socks_lock){+.-.}-{2:2}: __raw_spin_lock_bh include/linux/spinlock_api_smp.h:126 [inline] _raw_spin_lock_bh+0x33/0x40 kernel/locking/spinlock.c:178 spin_lock_bh include/linux/spinlock.h:356 [inline] j1939_sk_errqueue+0xaa/0x1a0 net/can/j1939/socket.c:1083 j1939_session_destroy+0x276/0x4f0 net/can/j1939/transport.c:271 __j1939_session_release net/can/j1939/transport.c:294 [inline] kref_put include/linux/kref.h:65 [inline] j1939_session_put net/can/j1939/transport.c:299 [inline] j1939_session_deactivate_locked net/can/j1939/transport.c:1086 [inline] j1939_session_deactivate_locked+0x28c/0x330 net/can/j1939/transport.c:1074 j1939_cancel_active_session+0x183/0x360 net/can/j1939/transport.c:2194 j1939_netdev_notify+0x19a/0x1d0 net/can/j1939/main.c:380 notifier_call_chain+0xb6/0x3b0 kernel/notifier.c:93 call_netdevice_notifiers_info+0xb9/0x130 net/core/dev.c:1995 call_netdevice_notifiers_extack net/core/dev.c:2033 [inline] call_netdevice_notifiers net/core/dev.c:2047 [inline] __dev_notify_flags+0x1f5/0x2e0 net/core/dev.c:8667 dev_change_flags+0x122/0x170 net/core/dev.c:8703 do_setlink+0x1a2a/0x3fa0 net/core/rtnetlink.c:2880 __rtnl_newlink+0xc1d/0x1940 net/core/rtnetlink.c:3671 rtnl_newlink+0x67/0xa0 net/core/rtnetlink.c:3718 rtnetlink_rcv_msg+0x3c4/0xdf0 net/core/rtnetlink.c:6442 netlink_rcv_skb+0x16b/0x440 net/netlink/af_netlink.c:2545 netlink_unicast_kernel net/netlink/af_netlink.c:1342 [inline] netlink_unicast+0x536/0x810 net/netlink/af_netlink.c:1368 netlink_sendmsg+0x93c/0xe40 net/netlink/af_netlink.c:1910 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg+0xd5/0x180 net/socket.c:745 ____sys_sendmsg+0x6ac/0x940 net/socket.c:2558 ___sys_sendmsg+0x135/0x1d0 net/socket.c:2612 __sys_sendmsg+0x117/0x1e0 net/socket.c:2641 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd -> #0 (&priv->active_session_list_lock){+.-.}-{2:2}: check_prev_add kernel/locking/lockdep.c:3134 [inline] check_prevs_add kernel/locking/lockdep.c:3253 [inline] validate_chain kernel/locking/lockdep.c:3868 [inline] __lock_acquire+0x2e3d/0x5de0 kernel/locking/lockdep.c:5136 lock_acquire kernel/locking/lockdep.c:5753 [inline] lock_acquire+0x1ae/0x510 kernel/locking/lockdep.c:5718 __raw_spin_lock_bh include/linux/spinlock_api_smp.h:126 [inline] _raw_spin_lock_bh+0x33/0x40 kernel/locking/spinlock.c:178 spin_lock_bh include/linux/spinlock.h:356 [inline] j1939_session_list_lock net/can/j1939/transport.c:238 [inline] j1939_session_activate+0x4b/0x4a0 net/can/j1939/transport.c:1564 j1939_sk_queue_activate_next_locked net/can/j1939/socket.c:181 [inline] j1939_sk_queue_activate_next+0x2bc/0x4d0 net/can/j1939/socket.c:208 j1939_session_deactivate_activate_next net/can/j1939/transport.c:1108 [inline] j1939_session_completed+0xb7/0x170 net/can/j1939/transport.c:1222 j1939_xtp_rx_eoma_one net/can/j1939/transport.c:1395 [inline] j1939_xtp_rx_eoma+0x293/0x600 net/can/j1939/transport.c:1410 j1939_tp_cmd_recv net/can/j1939/transport.c:2099 [inline] j1939_tp_recv+0x718/0xf50 net/can/j1939/transport.c:2144 j1939_can_recv+0x78b/0xa70 net/can/j1939/main.c:112 deliver net/can/af_can.c:572 [inline] can_rcv_filter+0x2a5/0x8e0 net/can/af_can.c:606 can_receive+0x31b/0x5c0 net/can/af_can.c:663 can_rcv+0x1dc/0x270 net/can/af_can.c:687 __netif_receive_skb_one_core+0x115/0x180 net/core/dev.c:5552 __netif_receive_skb+0x1f/0x1b0 net/core/dev.c:5666 process_backlog+0x101/0x6b0 net/core/dev.c:5994 __napi_poll.constprop.0+0xb4/0x530 net/core/dev.c:6556 napi_poll net/core/dev.c:6623 [inline] net_rx_action+0x956/0xe90 net/core/dev.c:6756 __do_softirq+0x218/0x965 kernel/softirq.c:553 do_softirq kernel/softirq.c:454 [inline] do_softirq+0xaa/0xe0 kernel/softirq.c:441 __local_bh_enable_ip+0xf8/0x120 kernel/softirq.c:381 wg_socket_send_skb_to_peer+0x14c/0x210 drivers/net/wireguard/socket.c:184 wg_packet_create_data_done drivers/net/wireguard/send.c:251 [inline] wg_packet_tx_worker+0x1ab/0x810 drivers/net/wireguard/send.c:276 process_one_work+0x884/0x15c0 kernel/workqueue.c:2630 process_scheduled_works kernel/workqueue.c:2703 [inline] worker_thread+0x8b9/0x1290 kernel/workqueue.c:2784 kthread+0x33c/0x440 kernel/kthread.c:388 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304 other info that might help us debug this: Chain exists of: &priv->active_session_list_lock --> &priv->j1939_socks_lock --> &jsk->sk_session_queue_lock Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&jsk->sk_session_queue_lock); lock(&priv->j1939_socks_lock); lock(&jsk->sk_session_queue_lock); lock(&priv->active_session_list_lock); *** DEADLOCK *** 5 locks held by kworker/1:0/23: #0: ffff888028ce7938 ((wq_completion)wg-crypt-wg0#2){+.+.}-{0:0}, at: process_one_work+0x787/0x15c0 kernel/workqueue.c:2605 #1: ffffc900001d7d80 ((work_completion)(&peer->transmit_packet_work)){+.+.}-{0:0}, at: process_one_work+0x7e9/0x15c0 kernel/workqueue.c:2606 #2: ffffffff8cbab2e0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:303 [inline] #2: ffffffff8cbab2e0 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:749 [inline] #2: ffffffff8cbab2e0 (rcu_read_lock){....}-{1:2}, at: process_backlog+0x25d/0x6b0 net/core/dev.c:5993 #3: ffffffff8cbab2e0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:303 [inline] #3: ffffffff8cbab2e0 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:749 [inline] #3: ffffffff8cbab2e0 (rcu_read_lock){....}-{1:2}, at: can_receive+0x216/0x5c0 net/can/af_can.c:656 #4: ffff88807d7935c8 (&jsk->sk_session_queue_lock){+.-.}-{2:2}, at: spin_lock_bh include/linux/spinlock.h:356 [inline] #4: ffff88807d7935c8 (&jsk->sk_session_queue_lock){+.-.}-{2:2}, at: j1939_sk_queue_activate_next+0x60/0x4d0 net/can/j1939/socket.c:207 stack backtrace: CPU: 1 PID: 23 Comm: kworker/1:0 Not tainted 6.6.0-rc7-syzkaller-00016-g84186fcb834e #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/06/2023 Workqueue: wg-crypt-wg0 wg_packet_tx_worker Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xd9/0x1b0 lib/dump_stack.c:106 check_noncircular+0x311/0x3f0 kernel/locking/lockdep.c:2187 check_prev_add kernel/locking/lockdep.c:3134 [inline] check_prevs_add kernel/locking/lockdep.c:3253 [inline] validate_chain kernel/locking/lockdep.c:3868 [inline] __lock_acquire+0x2e3d/0x5de0 kernel/locking/lockdep.c:5136 lock_acquire kernel/locking/lockdep.c:5753 [inline] lock_acquire+0x1ae/0x510 kernel/locking/lockdep.c:5718 __raw_spin_lock_bh include/linux/spinlock_api_smp.h:126 [inline] _raw_spin_lock_bh+0x33/0x40 kernel/locking/spinlock.c:178 spin_lock_bh include/linux/spinlock.h:356 [inline] j1939_session_list_lock net/can/j1939/transport.c:238 [inline] j1939_session_activate+0x4b/0x4a0 net/can/j1939/transport.c:1564 j1939_sk_queue_activate_next_locked net/can/j1939/socket.c:181 [inline] j1939_sk_queue_activate_next+0x2bc/0x4d0 net/can/j1939/socket.c:208 j1939_session_deactivate_activate_next net/can/j1939/transport.c:1108 [inline] j1939_session_completed+0xb7/0x170 net/can/j1939/transport.c:1222 j1939_xtp_rx_eoma_one net/can/j1939/transport.c:1395 [inline] j1939_xtp_rx_eoma+0x293/0x600 net/can/j1939/transport.c:1410 j1939_tp_cmd_recv net/can/j1939/transport.c:2099 [inline] j1939_tp_recv+0x718/0xf50 net/can/j1939/transport.c:2144 j1939_can_recv+0x78b/0xa70 net/can/j1939/main.c:112 deliver net/can/af_can.c:572 [inline] can_rcv_filter+0x2a5/0x8e0 net/can/af_can.c:606 can_receive+0x31b/0x5c0 net/can/af_can.c:663 can_rcv+0x1dc/0x270 net/can/af_can.c:687 __netif_receive_skb_one_core+0x115/0x180 net/core/dev.c:5552 __netif_receive_skb+0x1f/0x1b0 net/core/dev.c:5666 process_backlog+0x101/0x6b0 net/core/dev.c:5994 __napi_poll.constprop.0+0xb4/0x530 net/core/dev.c:6556 napi_poll net/core/dev.c:6623 [inline] net_rx_action+0x956/0xe90 net/core/dev.c:6756 __do_softirq+0x218/0x965 kernel/softirq.c:553 do_softirq kernel/softirq.c:454 [inline] do_softirq+0xaa/0xe0 kernel/softirq.c:441 __local_bh_enable_ip+0xf8/0x120 kernel/softirq.c:381 wg_socket_send_skb_to_peer+0x14c/0x210 drivers/net/wireguard/socket.c:184 wg_packet_create_data_done drivers/net/wireguard/send.c:251 [inline] wg_packet_tx_worker+0x1ab/0x810 drivers/net/wireguard/send.c:276 process_one_work+0x884/0x15c0 kernel/workqueue.c:2630 process_scheduled_works kernel/workqueue.c:2703 [inline] worker_thread+0x8b9/0x1290 kernel/workqueue.c:2784 kthread+0x33c/0x440 kernel/kthread.c:388 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304 vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_xtp_rx_dat: no tx connection found vxcan0: j1939_tp_txtimer: 0xffff8880285ddc00: tx aborted with unknown reason: -2 vxcan0: j1939_xtp_rx_abort_one: 0xffff8880285ddc00: 0x00000: (250) Any other reason (if a Connection Abort reason is identified that is not listed in the table use code 250)