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<pre>refer this : <a href="https://www.kernel.org/doc/local/pr_debug.txt">https://www.kernel.org/doc/local/pr_debug.txt</a>
</pre>
On 06/25/2014 11:39 AM, lx wrote:<br>
</div>
<blockquote
cite="mid:CA+5jrfk8gOgMOKiWxDHC4Yz4EE7Rdz6LLZhJAQCEKz67=rbyNg@mail.gmail.com"
type="cite">
<div dir="ltr">hi all:<br>
I'm confused with pr_debug. My codes is:
<div>###########################################</div>
<div>
<div>#include <linux/module.h></div>
<div>#include <linux/kernel.h></div>
<div>
<br>
</div>
<div>static int __init init_page_dir(void)</div>
<div>{</div>
<div> pr_debug("Hello world\n");</div>
<div> return 0;</div>
<div>}</div>
<div><br>
</div>
<div>static void __exit exit_page_dir(void)</div>
<div>{</div>
<div> pr_debug("\nGoodbye now...\n\n");</div>
<div>}</div>
<div><br>
</div>
<div>MODULE_LICENSE("GPL");</div>
<div>module_init(init_page_dir);</div>
<div>module_exit(exit_page_dir);</div>
</div>
<div>###########################################</div>
<div>I make it, and insmod it. But the messages of "Hello world"
don't show.</div>
<div><br>
</div>
<div>So, My question is If i want to fix it , I should set the <i
style="color:rgb(37,37,37);font-family:sans-serif;font-size:14px;line-height:22px;text-align:-webkit-auto">DEFAULT_MESSAGE_LOGLEVEL
and </i></div>
<div><i
style="color:rgb(37,37,37);font-family:sans-serif;font-size:14px;line-height:22px;text-align:-webkit-auto">rebuild
the kernel ?</i></div>
<div><br>
</div>
<div>My kernel version is:2.6.18</div>
<div>OS is: centOS</div>
<div><br>
</div>
<div>Thank you.</div>
</div>
<br>
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</pre>
</blockquote>
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