Re: [RFC PATCH v2 1/3] printk: Add function to set console to preferred console's driver

[Alper Nebi Yasak]

On 01/05/2020 04:44, Sergey Senozhatsky wrote:
> Hmm. Preferred console selection is very fragile, there are too many
> setups and workarounds that even minor tweaks introduce regressions
> oftentimes.

All this would only execute on #ifdef VT_CONSOLE right now and I think
they can be gated further by a new Kconfig like VT_CONSOLE_PREFERRED, if
that'd make it better.

> We have, by the way, a pending patchset which changes the same
> are - preferred console selection.
>
> git://git.kernel.org/pub/scm/linux/kernel/git/pmladek/printk.git for-5.7-preferred-console

I was working on next-20200430 where that patchset is already included,
can confirm it doesn't solve this problem. I hope I've correctly avoided
breaking it by setting its "has_preferred_console" variable (thus this
patchset somewhat depends on that).

> Let me take a look over the weekend.

Thanks in advance.