Im looking at some kernel code, and there are 'pr_err' error messages in
it that would help me discover my problem.
However I dont see them printing anywhere.
What do I have to do to see these error messages?
A search with GOOGLE and a grep of the code wasnt too useful, but
it seems possible that I need to set
#define CONFIG_DEBUG
Is that true? I see a lot of <something>_DEBUGs in the .config file
but no simple CONFIG_DEBUG that is commented out.
In any case, how do I get these things to print?
--
Reg.Clemens
[email protected]
From: [email protected]
Date: Sat, Feb 27, 2010 at 03:11:03AM -0700
> Im looking at some kernel code, and there are 'pr_err' error messages in
> it that would help me discover my problem.
>
> However I dont see them printing anywhere.
>
> What do I have to do to see these error messages?
Take a look at 'ignore_loglevel' and 'loglevel' kernel parameters in
<Documentation/kernel-parameters.txt> depending on what exactly you want
to achieve.
> A search with GOOGLE and a grep of the code wasnt too useful, but
> it seems possible that I need to set
>
> #define CONFIG_DEBUG
>
> Is that true? I see a lot of <something>_DEBUGs in the .config file
> but no simple CONFIG_DEBUG that is commented out.
I think this is referring to pr_debug() calls. Those get called when you
add
#define DEBUG
to the file containing them. Otherwise they're optimized away.
--
Regards/Gruss,
Boris.