ask debug

["henry" <henry@xxxxxxxxxxxxxx>]

Dear  List :

 

        I have a user-program make (SeTopBox implimented with SC1200) hang.

 

        I  use to insert macro (as follows) everywhere in user-program 

openlog("",LOG_PID,LOG_USER);

syslog("LOG_INFO","file: %s  line%d\n"__FILE__,__LINE__) ;

closelog();

usleep(3);  // let file be fflushed before HANG

Then I reboot PC & go to /var/log to find out where it hangs.

 

    But this time ,I traced a bug from user-program to a driver it called:

I inserted the macro (as above ) to driver , but After I made driver xxx.o &

insmod   xxx.o ,   I    got (msg as follows)

                                                                            "export openlog

                                                                             export  syslog

                                                                             export closelog"

I have 2 questions to consult you :

 

1. Could I use openlog(),syslog(),closelog() in driver ?

2. Is there a method for dummy to know

                            where(from the view of source-code) it hang ?

 

Thanks in advance !

Henry