I can put it here, but you will not read it, for sure: that is a program with more then 3200 lines of code that use couple system utilities (as a dynamic library) and my 'debugging' tools, that makes some primitive statements extended to kilobytes by preprocessor.
Also, the code is running the perl-script to indexing a huge data file and works with that produced index-files and data-extraction file.
Do you think it is any way to present it here and expect anybody would get understanding of that processing, even spend up to one hour? (sure it is over any logical limit)
And I am not able to separate any particular part of program do display it here as, on first, I have no idea where the problem exist and, on second, the complicity of processing makes it very unlikely possible.
---------- Post updated at 10:53 AM ---------- Previous update was at 10:17 AM ----------
Quote:
Originally Posted by Corona688
You may have to trace it in a debugger with memory watch and see when it changes. Or an analyzer like valgrind.
Regarding the 'trace' - I am using 'dbx' (I believe we do not have here other debuger (we are on SUN Solaris (studio is not available)))
I did try to set the 'check', 'change' and 'cond', but not able to get it work:
Code:
(/opt/SUNWspro/WS6U2/bin/sparcv9/dbx) stop cond (cnr_totl > 3)
dbx: events requiring automatic single-stepping are unavailable for MT programs
(/opt/SUNWspro/WS6U2/bin/sparcv9/dbx) stop change cnr_totl
dbx: events requiring automatic single-stepping are unavailable for MT programs
I am not sure if I use it incorrect or it does not works in our system (other developers or did not try that or was not able to get it work here.)
About the MT - from my side the program is not multy-threaded, but maybe something done by library?!
Getting the 'threads' by 'dbx' it shows only one thread. I do not understand why 'dbx' complains like that!
But I was able to set 'check -all'.
It is pointed me on some places with warnings, but it is not obvious and the processing comes through those places without any problem and, finally stops on Segmentation signal.
I did not try to use 'trace', but now, on short try it shows the same:
Code:
(/opt/SUNWspro/WS6U2/bin/sparcv9/dbx) trace cnr_totl
dbx: events requiring automatic single-stepping are unavailable for MT programs
The 'valgrind' is a new word for me!
I appreciate you mentioned it. I will check it!
But, it is not available on our system, and, as you can guess, I have no way to install it here, unfortunately
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06-23-2010
