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DateSat, 4 Jul 2009 12:29:04 +0200
FromIngo Molnar <>
SubjectRe: Boot Consoles question...

* Robin Getz <rgetz@blackfin.uclinux.org> wrote:

> Quick question...
>
> In register_console()
>
> if (bcon && ((newcon->flags & (CON_CONSDEV | CON_BOOT)) ==
> CON_CONSDEV)) {
> [[snip]]
> newcon->flags &= ~CON_PRINTBUFFER;
> }
>
> So - when we are switching over from a boot console to a "real"
> console - we don't back up the console, and print everything out.
>
> This means that the boot console is on a different device than
> that "real" console - you don't actually see the full boot message
> (from log_start) on the "real" console.
>
> Is this what is intended (that the boot message gets split into 2
> - 1/3 going into the bootconsole - and the remaining to to the
> real console?)
>
> I can understand this when both (boot and real) are the same
> device (serial) or vga, but where they are not - it is a little
> confusing to the user - isn't it?

Could be changed i guess ... but is it really an issue? All messages
should be in the syslog buffer (if it's large enough). One artifact
could be manual scroll-back - it would perhaps be nice indeed to
allow the scrollback to the top of the bootlog.

Ingo


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