Re: "Re: [PATCH 0/2] Colored kernel output (run2)" + "`Subject:'usage"

From: Bill Davidsen
Date: Fri Oct 12 2007 - 09:09:15 EST


Oleg Verych wrote:
Hallo, Ingo.

On Sun, Oct 07, 2007 at 08:07:07AM +0200, Ingo Molnar wrote:


To clarify. `Scrollback' here is *useful* scrollback during early boot
and OOPs (which is absent, AFAIK), "nothing like that" is coloring of the
messages by loglevel.

even if it were true (which it isnt), that is not an argument against including a useful change that exists now and that people are interested in.

Coloring isn't useful. If it was, it would be implemented ~16 years ago.

So anything that wasn't implemented a decade ago is not useful? Virtual machines, software raid, fair scheduling, jumbo packets, SMT/SMP/NUMA support, support for >4GB physical memory on x86, all fluff?

(and yes, i have implemented kernel console improvements in the past and vga scrollback support was in fact amongst one of my first ever Linux kernel hacks so your comment is doubly wrong.)

This `scrollback' is usual late boot / console one. If fact useful,
until first tty switch or if `screen` cannot be used. But for some
reason if scrolling region (DECSTBM) is less than whole screen, nothing
works. And if width set to odd number of columns

`stty columns $((80-1))`

whole output becomes somewhat funny.

I think by the time you get up enough to be running ill-advised commands from shell, you are past "early boot." Your comments about scrollback not working right if you break it are hopefully an attempt at humor.

--
Bill Davidsen <davidsen@xxxxxxx>
"We have more to fear from the bungling of the incompetent than from
the machinations of the wicked." - from Slashdot
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