patches to quieten the nexus7 boot messages

[Oliver Grawert]

Am Freitag, den 25.01.2013, 17:00 +0000 schrieb Andy Whitcroft:
> On Fri, Jan 25, 2013 at 03:46:48PM +0100, Oliver Grawert wrote:
> > hi,
> > 
> > in the nexus7 kernel a lot of hacked in third party drivers falsely use
> > pr_err or KERN_ERR for printing out info messages to the console ...
> > 
> > these messages show up before plymouth starts and give a noisy boot
> > impression even though our kernel logging is already at lowest prio.
> > 
> > to quieten that i have switched the respective functions from pr_err to
> > pr_info in the attached 8 patches. please apply them to the nexus7 tree.
> 
> As these are all at KERN_ERR, surley you can set the console down to
> KERN_EMERG only and these will all be suppressed ?  Are you already
> using loglevel=0 or just quiet.  In our main kernels we have the commit
> below pulling the loglevel lower by default:
> 
>   commit 8464b5966d404505aa506c33c1099e6e507cdfc7
>   Author: Tim Gardner <tim.gardner at canonical.com>
>   Date:   Thu Oct 8 11:42:36 2009 -0600
> 
>     UBUNTU: SAUCE: (no-up) raise the default console 'quiet' level to 2
> 
> I don't see this in the n7 kernel, might that help?  We could even move
> it lower if appropriate.
the n7 kernel definitely had the patch that is also used in ubuntu to
set console_loglevel=1 in init/main.c, 

i also know that this didnt prevent the pr_err messages from being
printed to console in our quantal image... 

looking at the code now, it seems the patch was lost during the re-base
the kernel team did, i will try with loglevel=1 again and see which
messages persist to be printed on screen ...


ciao
	oli
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