Hi Set your log level to 8 so you can see your messages. The pr_ *ones Should be good.
Also check how to enable that macro for specific or all files of your module. On Mar 25, 2014 10:18 AM, "wangyubin" <harry198...@gmail.com> wrote: > > OK, I will try to use that. > :-) > > Best Regards! > wangyubin > > On 03/25/2014 11:28 AM, Aruna Hewapathirane wrote: > > Hi Wangyubin, > > > > You may want to drop by the IRC channel : http://kernelnewbies.org/IRC > > has lots of friendly and vastly more experienced folks. > > > > :) > > > > On Mon, Mar 24, 2014 at 11:08 PM, wangyubin <harry198...@gmail.com> wrote: > >> Hi, Aruna > >> > >> I will use Checkpatch.pl to check my source file by your advice! > >> thanks again! > >> > >> Best Regards! > >> wangyubin > >> > >> > >> On 03/25/2014 10:48 AM, Aruna Hewapathirane wrote: > >>> Hi Wangyubin, > >>> > >>> There is a *reason* why I decided to give you a helping hand my dear, > >>> > >>> "I" had a very hard time with that task-01 but it did help me > >>> immensely to begin to understand how things work and are done in the > >>> kernel. I do not want anyone else to waste time if we can get > >>> newcomers up to a certain level of competency where they can > >>> contribute to the kernel this world will be a much better place. > >>> > >>> Run checkpatch.pl and try to resolve all errors and warnings before > >>> you sumbit as else little penguin will say uh-uh sorry try again ! > >>> > >>> Checkpatch is your friend and so is Google so use them :) > >>> > >>> > >>> > >>> On Mon, Mar 24, 2014 at 10:42 PM, wangyubin <harry198...@gmail.com> wrote: > >>>> Hi, Aruna > >>>> > >>>> Thanks for your answer! > >>>> > >>>> I used printk like this in the previous submit. > >>>> printk(KERN_ALERT "Hello World !"); > >>>> > >>>> I will change "KERN_ALERT" to "KERN_DEBUG" and try to submit again! > >>>> > >>>> also thanks for Masood Mehmood and Parinay Kondekar's help! > >>>> > >>>> Best Regards! > >>>> wangyubin > >>>> > >>>> On 03/25/2014 10:16 AM, Aruna Hewapathirane wrote: > >>>>> Hi Wangyubin, > >>>>> > >>>>> The log level you require is KERN_DEBUG ... > >>>>> > >>>>> But when you run checkpatch.pl on your *.c file it will say: > >>>>> > >>>>> WARNING: Prefer netdev_dbg(netdev, ... then dev_dbg(dev, ... then > >>>>> pr_debug(... to printk(KERN_DEBUG ... > >>>>> > >>>>> So replacing printk(KERN_DEBUG ... with pr_debug will resolve this. > >>>>> > >>>>> You can find the log files in /var/log and you can list them with ls > >>>>> /var/log. > >>>>> > >>>>> The latest kernel I found has the debug and messages logs disabled by > >>>>> default. You can easily rectify this by editing > >>>>> /etc/rsyslog.d/50-default.conf. And un-commenting the section : > >>>>> > >>>>> #*.=debug;\ > >>>>> # auth,authpriv.none;\ > >>>>> # news.none;mail.none -/var/log/debug > >>>>> #*.=info;*.=notice;*.=warn;\ > >>>>> # auth,authpriv.none;\ > >>>>> # cron,daemon.none;\ > >>>>> # mail,news.none -/var/log/messages > >>>>> > >>>>> This will give you back the debug and message logs. > >>>>> > >>>>> Good luck ! > >>>>> > >>>>> Aruna > >>>>> > >>>>> > >>>>> > >>>>> > >>>>> > >>>>> > >>>>> On Mon, Mar 24, 2014 at 9:28 PM, wangyubin <harry198...@gmail.com> > >>>>> wrote: > >>>>>> Hello, > >>>>>> I have dive into the eudyptula-challenge, but when I submit my result > >>>>>> for task 01. > >>>>>> I received a reply below: > >>>>>>> Please print to the kernel debug log level. > >>>>>> I have sended module(c file), Makefile, and dmesg output for > >>>>>> load/unload the module. > >>>>>> Could anyone to tell me what does this message mean? > >>>>>> Thanks a lot! > >>>>>> > >>>>>> -- > >>>>>> Best Regards! > >>>>>> wangyubin > >>>>>> > >>>>>> > >>>>>> _______________________________________________ > >>>>>> Kernelnewbies mailing list > >>>>>> Kernelnewbies@kernelnewbies.org > >>>>>> http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies > >>>> > >>>> _______________________________________________ > >>>> Kernelnewbies mailing list > >>>> Kernelnewbies@kernelnewbies.org > >>>> http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies > >> > > > _______________________________________________ > Kernelnewbies mailing list > Kernelnewbies@kernelnewbies.org > http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
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