Re: logging in kernel

[Karim Yaghmour]

khandelw@xxxxxxxxxx wrote:
> Hello,
>     I am a graudate student at Florida State University. My friends and my self
> are planning to implement a kernel logger for linux kernel (real-time systems).
> We are new to linux kernel programming and we have not done kernel programming.
>     We believe right now most of the system are using printk. We want to write a
> tool which can be used for debugging as well as logging of data in the future.
> Following are the things that we have in mind so far.
>
> 1. Implement the logging daemon or the server as a periodic task in the
> real-time system.
> 2. Have an api which looks similar to printk
> 3. Have an option to specify the write the network card or console or a
> dedicated device.
> 4. Use it for checkpointing in distributed system.

There have been quite a few things done in this area already. For starters,
you may want to take a look at the Linux Trace Toolkit and the underlying
mechanism, relayfs:
http://www.opersys.com/ltt/index.html
http://www.opersys.com/relayfs/index.html

Karim
--
Author, Speaker, Developer, Consultant
Pushing Embedded and Real-Time Linux Systems Beyond the Limits
http://www.opersys.com || karim@xxxxxxxxxxx || 1-866-677-4546

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