Hello, Milosz

It's a very simple hardware connection, for example, the serial port is "/dev/ttyUSB0", I set "telnet xxx 9999" in device, then I use uboot/nfs in lava job.

1. Sometimes when I submit my job to lava, it's just ok.

2. But sometimes when I submit my job to lava, in uboot operation, for example, "tftpboot xxx image", it will tells me "Connection closed", I don't know why. But when I submit a job to lava at once, then it's ok this time!

3. I guess some issue with something, I'm not sure it's lava issue or my board issue. Then I set a failure_retry: 10, to let lava retry it for me. Strange, never success. But if manual retry it in hand, it's high probability that I could retry successfully.

On Mon, May 18, 2020 at 4:56 PM Milosz Wasilewski <milosz.wasilewski@linaro.org> wrote:

Peter,

On Mon, 18 May 2020 at 09:52, Peter Lucas <peterlucas073@gmail.com> wrote:
>
> Dear Sir/Madam,
>
> I'm new to LAVA. I'm still in initial stage to use lava in our farm. I use customized board with Qualcomm's chip.
>
> Recently I met a question, a very simple job, sometimes when I start to operate uboot, the serial have chance to be closed. They I set retry in lava job, let it retry a lots of times, but looks never successfully open the serial again.

I don't quite understand your use case. Do you manually close the
serial connection? Could you describe your setup (hardware
connections) in a bit more detail?

milosz

>
> But, after job finish, I quickly open the serial in manual, it's ok!
>
> I search your code a lot, and found in shell.py there is one comments, I want to know is this the reason that I failed to retry for serial? When will you fix it?
>
> # FIXME: deliberately closing the connection (and starting a new one) needs to be supported.
>
> Cheers,
> Peter
> _______________________________________________
> Lava-users mailing list
> Lava-users@lists.lavasoftware.org
> https://lists.lavasoftware.org/mailman/listinfo/lava-users