linux-kernel - Boot Consoles question...

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-ID: <200907040017.26921.rgetz@blackfin.uclinux.org>
Date:	Sat, 4 Jul 2009 00:17:26 -0400
From:	Robin Getz <rgetz@...ckfin.uclinux.org>
To:	"Ingo Molnar" <mingo@...e.hu>,
	"Andrew Morton" <akpm@...ux-foundation.org>
CC:	linux-kernel@...r.kernel.org
Subject: Boot Consoles question...

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?

Thanks
-Robin
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/