Re: [PATCH] printk/console: Enable console kthreads only when there is no boot console left

[Petr Mladek]

On Mon 2022-06-20 17:14:30, Petr Mladek wrote:
> The console kthreads uncovered several races in console drivers.
> All problems were in situation when a console was being properly
> initialized and registered while an early console, using the same
> port, was being used.
> 
> These problems are pretty hard to debug because they often result
> into silent boot crashes. It would be nice to fix them but it
> looks like a can of worms.
> 
> Prevent these problems by delaying the use of console kthreads
> after all early consoles are gone. It might later be optimized.
> But let's close this can of worms with a big hammer for now
> so that they do not break first impression on the kthreads
> that solve other real problems.

Marek, could you please try if this patch solves the problem
for you?

Best Regards,
Petr