Re: time stamped printks

[Gabriel C <nix.or.die@googlemail.com>]

David Miller wrote:
> From: Hinko Kočevar <hinko.kocevar@cetrtapot.si>
> Date: Thu, 08 May 2008 10:26:01 +0200
> 
>> Hi all,
>>
>> I'm building latest GIT tree kernel for CRIS architecture. Right now I'm seeing 
>> some strange values with printk stamps - at the start they are initialized to 0, 
>> but quickly change to 42949372 - 0x028F5AFC.
>>
>> Any thoughts to where to look for fix?
> 
> Very early in the boot, the timestamp counter fetching infrastructure
> isn't setup yet.  So zero is reported for the timestamp.
> 
> So early on in the boot, it is often not even possible to setup
> such things yet.  Because infrastructure they need for probing
> etc. isn't even available yet.
> 
> This happens on basically every single Linux platform, there
> isn't really anything to fix.

For the early boot 0's it is normal but not for the following strange values :)

I got the same problem on my 64bit box with latest git head and bisected it down to 3e51f33fcc7f55e6df25d15b55ed10c8b4da84cd

http://lkml.org/lkml/2008/5/8/146


Regards,

Gabriel C