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 <harry198344@xxxxxxxxx> 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 <harry198344@xxxxxxxxx> 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@xxxxxxxxxxxxxxxxx >>>> http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies >> >> _______________________________________________ >> Kernelnewbies mailing list >> Kernelnewbies@xxxxxxxxxxxxxxxxx >> http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies _______________________________________________ Kernelnewbies mailing list Kernelnewbies@xxxxxxxxxxxxxxxxx http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
