Serial interface "hanging" at "br-lan: link becomes ready"

Hello,

I’m connected to the Ten64 board through a serial port and there are no problems per se. What I do see, however, is whenever I reboot the device and enter recovery mode, the serial port just “hangs” here:

[    8.490632] xt_time: kernel timezone is -0000
[    8.502271] PPP generic driver version 2.4.2
[    8.506969] NET: Registered protocol family 24
[    8.557332] kmodloader: 1 module could not be probed
[    8.562322] kmodloader: - sha512-ce - 0
[   11.506405] dpaa2_mac dpmac.7 (unnamed net_device) (uninitialized): Link is Up - 1Gbps/Full - flow control off
[   11.512093] br-lan: port 1(eth0) entered blocking state
[   11.519086] fsl_dpaa2_eth dpni.9 eth0: Link Event: state up
[   11.521654] br-lan: port 1(eth0) entered disabled state
[   11.523817] device eth0 entered promiscuous mode
[   11.538769] br-lan: port 1(eth0) entered blocking state
[   11.544003] br-lan: port 1(eth0) entered forwarding state
[   11.553899] dpaa2_mac dpmac.8 (unnamed net_device) (uninitialized): Link is Up - 1Gbps/Full - flow control off
[   11.568634] fsl_dpaa2_eth dpni.8 eth1: Link Event: state up
[   11.577849] br-lan: port 2(eth1) entered blocking state
[   11.583088] br-lan: port 2(eth1) entered disabled state
[   11.590475] device eth1 entered promiscuous mode
[   11.596152] br-lan: port 2(eth1) entered blocking state
[   11.601379] br-lan: port 2(eth1) entered forwarding state
[   11.609893] dpaa2_mac dpmac.9 (unnamed net_device) (uninitialized): Link is Up - 1Gbps/Full - flow control off
[   11.624307] fsl_dpaa2_eth dpni.7 eth2: Link Event: state up
[   11.631787] br-lan: port 3(eth2) entered blocking state
[   11.637028] br-lan: port 3(eth2) entered disabled state
[   11.644379] device eth2 entered promiscuous mode
[   11.650059] br-lan: port 3(eth2) entered blocking state
[   11.655282] br-lan: port 3(eth2) entered forwarding state
[   11.663769] dpaa2_mac dpmac.10 (unnamed net_device) (uninitialized): Link is Up - 1Gbps/Full - flow control off
[   11.678203] fsl_dpaa2_eth dpni.6 eth3: Link Event: state up
[   11.685745] br-lan: port 4(eth3) entered blocking state
[   11.690985] br-lan: port 4(eth3) entered disabled state
[   11.698400] device eth3 entered promiscuous mode
[   11.704088] br-lan: port 4(eth3) entered blocking state
[   11.709315] br-lan: port 4(eth3) entered forwarding state
[   11.718331] dpaa2_mac dpmac.5 (unnamed net_device) (uninitialized): Link is Up - 1Gbps/Full - flow control off
[   11.732734] fsl_dpaa2_eth dpni.3 eth6: Link Event: state up
[   12.517311] IPv6: ADDRCONF(NETDEV_CHANGE): br-lan: link becomes ready

If I press CTRL+C, and then enter, Serial (the macOS app I’m using), will then reattach and show me I’m already logged in. The settings are as follows:

There are no ethernet cables plugged into eth0 thru eth6.

Is this behavior expected?

Just to confirm (and sorry if this sounds stupid!), if you press Enter (without Ctrl-C before hand) when it ‘hangs’, there is no response on the console?

OpenWrt (and the recovery firmware which is based on OpenWrt) doesn’t bring up a prompt until the user hits the ‘Enter’ key, with all the kernel messages that come out the Please press Enter to activate this console message can easily be missed.

On the other hand, I’ve just tested the Serial app and don’t see any issues with the recovery mode. Any chance you could try minicom or another terminal application if there is an issue with Serial?