[LAU] A kernel warning

Dragan Noveski perodog at gmx.net
Thu Mar 20 06:32:50 EDT 2008


Arda Eden wrote:
> After installing a Release Candidate kernel, while booting i'm 
> receiving a message :
>
> Mar 20 09:12:14 localhost kernel: 
> *****************************************************************************
> Mar 20 09:12:14 localhost kernel: 
> *                                                                                                                 
> *
> Mar 20 09:12:14 localhost kernel: *  REMINDER, the following debugging 
> option is turned on in your .config: *
> Mar 20 09:12:14 localhost kernel: 
> *                                                                                                                 
> *
> Mar 20 09:12:14 localhost kernel: *        
> CONFIG_FUNCTION_TRACE                                                 
>                  *
> Mar 20 09:12:14 localhost kernel: 
> *                                                                          
>                                        *
> Mar 20 09:12:15 localhost kernel: *  it may increase runtime overhead 
> and latencies.                                   *
> Mar 20 09:12:15 localhost kernel: 
> *                                                                        
>                                          *
> Mar 20 09:12:15 localhost kernel: 
> *****************************************************************************
>
>
> Is there a way to disable this option ?

did you compiled this kernel by your self?
if yes, than this is no problem:

go into kernel tree and start 'make menuconfig'

once it opened, press 'shift+7', than in the search line copy 
'CONFIG_FUNCTION_TRACE', it will show you where this option is located. 
now just go there and disable that option. recompile and done.
for recompiling the kernel, a always save the '.config' file somewhere 
else, than i remove the kernel tree and extract it again. after it i 
copy the '.config' into the new extracted kernel tree and run 'make 
oldconfig'.
i think there is a faster way to do it, but i don't know how, it works 
this way for me.

cheers,
doc



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