Re: [poky] [PATCH 2/4] genericarm64.conf: add AMD Kria KV260 serial consoles

[Mikko Rapeli <mikko.rapeli@linaro.org>]

On Tue, Oct 29, 2024 at 11:58:09AM +0000, Ross Burton wrote:
> On 29 Oct 2024, at 08:05, Mikko Rapeli via lists.yoctoproject.org <mikko.rapeli=linaro.org@lists.yoctoproject.org> wrote:
> > 
> > Current practice is to add new device serial devices to
> > SERIAL_CONSOLES. Enables testing and test automation with
> > the board. Note that SERIAL_CONSOLES get added to /etc/inittab
> > and missing physical serial consoles causes respawn warnings
> > at runtime:
> > 
> > INIT: Id "S0" respawning too fast: disabled for 5 minutes
> > INIT: Id "S1" respawning too fast: disabled for 5 minutes
> 
> The use of ttyrun should avoid the respawning issue, have you confirmed this still happens? If so, any idea why?

This is happening with very recent poky master builds with sysvinit, the default.

https://ledge.validation.linaro.org/scheduler/job/95628

    Starting syslogd/klogd: done
    
    INIT: Id "S1" respawning too fast: disabled for 5 minutes
    
    INIT: Id "S0" respawning too fast: disabled for 5 minutes
    Poky (Yocto Project Reference Distro) 5.1 genericarm64 /dev/ttyPS1

Alternatively testing could focus on systemd init, or the issue is just ignored.
Or udev based agetty starter is developed. For generic images, it should not be
necessary to define all serial consoles via SERIAL_CONSOLES at build time.
Kernel has a lot more drivers enabled.

Cheers,

-Mikko