[asterisk-dev] write my self app. Debug

[info at magnussolution.com]

Hi, sorry bother you.

I get a new backtrace 

Core was generated by `/usr/sbin/asterisk -f -vvvg -c'.
Program terminated with signal 11, Segmentation fault.
#0  0x00007f82ad124c80 in pthread_mutex_lock () from /lib64/libpthread.so.0
#0  0x00007f82ad124c80 in pthread_mutex_lock () from /lib64/libpthread.so.0
No symbol table info available.
#1  0x0000000000533c38 in __ast_pthread_mutex_lock (filename=<optimized out>, lineno=<optimized out>, func=<optimized out>, mutex_name=<optimized out>, t=<optimized out>) at lock.c:315
No locals.
#2  0x00007f829927aa12 in ast_odbc_release_obj (obj=obj at entry=0x7f81e8021900) at res_odbc.c:724
        class = 0x0
        __PRETTY_FUNCTION__ = "ast_odbc_release_obj"
#3  0x00007f81c2aee0b1 in dial_exec (chan=<optimized out>, data=0x7f81c3e85ae0 “\"SIP/magnus\"") at app_mbilling.c:4220




My code line 4219 - 4222:

4219               if(obj){
4220			ast_odbc_release_obj(obj);
4221			obj = NULL;
4222		}	


Please help me.

Best regards




> On 12 Sep 2018, at 20:10, info at magnussolution.com wrote:
> 
> thanks for you help.
> 
> 
> I try use backtrace. But I no a expert. 
> 
> I using cents 7 64x
> 
> gdb -se "asterisk" -ex "bt full" -ex "thread apply all bt" --batch -c core.13414 > /tmp/backtrace.txt
> 
> warning: exec file is newer than core file.
> Missing separate debuginfo for /usr/lib64/libmyodbc5.so
> 
> 
> [Thread debugging using libthread_db enabled]
> Using host libthread_db library "/lib64/libthread_db.so.1".
> Missing separate debuginfo for /usr/lib64/libmyodbc5.so
> Core was generated by `asterisk -vvvvvvvg'.
> Program terminated with signal 11, Segmentation fault.
> #0  ast_odbc_release_obj (obj=0x0) at res_odbc.c:712
> 712		struct odbc_class *class = obj->parent;
> 
> 
> to use ODBC on centos7 and mariaDB 10 I install it
> 
> yum -y remove mysql-connector-odbc
> yum -y localinstall --nogpgcheck http://dev.mysql.com/get/Downloads/Connector-ODBC/5.3/mysql-connector-odbc-5.3.11-1.el7.x86_64.rpm <http://dev.mysql.com/get/Downloads/Connector-ODBC/5.3/mysql-connector-odbc-5.3.11-1.el7.x86_64.rpm>
> ln -s /usr/lib64/libmyodbc5w.so  /usr/lib64/libmyodbc5.so 
> 
> 
> 
>> On 12 Sep 2018, at 19:28, Alex Villací­s Lasso <a_villacis at palosanto.com <mailto:a_villacis at palosanto.com>> wrote:
>> 
>> El 12/9/18 a las 14:33, info at magnussolution.com <mailto:info at magnussolution.com> escribió:
>>> that’s correct. I wrote a ael context with func_odbc and this work very well.
>>> 
>>> But, using my app_mbilling.c work more faster than ael and func_odbc.
>>> 
>>> example:
>>> agi 15 CPS
>>> ael-func_odbc 30 CPS
>>> native application 50 CPS
>> 
>> Have you tried yet FastAGI? Ordinary AGI is slowed down by the spawning of an entire process per call. FastAGI just requires a daemon that listens to requests on a TCP/IP port. This is way less invasive than writing a whole new Asterisk application in C. Any bottlenecks would now be located in the FastAGI server and could be tuned without touching the Asterisk core.
>> 
>> As an aside, just a wild guess, but I think the crashes could be due to one or more race conditions, and the proper locking required to solve them would slow down your C application to the ael-func_odbc level.
>> 
>> 
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