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

[Valery Ushakov <uwe%stderr.spb.ru@localhost>]

The following reply was made to PR kern/55286; it has been noted by GNATS.

From: Valery Ushakov <uwe%stderr.spb.ru@localhost>
To: gnats-bugs%netbsd.org@localhost
Cc: 
Subject: Re: kern/55286: Kernel messages cause loss of serial console input
Date: Mon, 25 May 2020 15:03:30 +0300

 On Mon, May 25, 2020 at 09:34:44 +0300, Andreas Gustafsson wrote:
 > Date: Mon, 25 May 2020 09:34:44 +0300
 > From: Andreas Gustafsson <gson%gson.org@localhost>
 > Subject: Re: kern/55286: Kernel messages cause loss of serial console input
 > To: Valery Ushakov <uwe%stderr.spb.ru@localhost>
 > CC: gnats-bugs%netbsd.org@localhost
 > 
 w
 > Valery Ushakov wrote:
 > >  How does your original test end up in a state like that to trigger
 > >  this bug?  Kernel message being printed with polled code and steals
 > >  the input?
 > 
 > Yes.
 
 That would be early autoconfig, before the interrupts are enabled, if
 I understand correctly.  That's an important time window, isn't it?
 
 
 > > In that case isn't the right fix to only do readahead when
 > > interrupts are disabled?
 > 
 > That is the right fix if you think the read-ahead code is worth
 > keeping, but I don't.  I'm volunteering to remove it; are you
 > volunteering to fix it?
 
 That sounds pretty rude.  I'm asking a question and you are telling me
 to shut up unless I'm up to imeediately fixing it.
 
 -uwe