Re: kern/55286: Kernel messages cause loss of serial console input

[Manuel Bouyer <bouyer%antioche.eu.org@localhost>]

On Sat, May 23, 2020 at 06:10:01PM +0000, Andreas Gustafsson wrote:
>  So, if I understand this correctly, this code is intended to support a
>  nonstandard way of breaking into DDB (as opposed to the standard break
>  condition) and will only work if the kernel happens to be printing
>  something in polled mode at the time (!).

no, it works fine even if nothing is being printed. I know, I'm using '+++++'
as a key to enter ddb.

>  
>  To me this seems like a bad idea from the start, and I would prefer to
>  simply remove this code rather than try to fix it.  Or does someone
>  think it actually has some value?

It definitively has some value. There are setups where BREAK can't be
sent (e.g. qemu, Dell idrac, ...). I need it.

-- 
Manuel Bouyer <bouyer%antioche.eu.org@localhost>
     NetBSD: 26 ans d'experience feront toujours la difference
--