just do IT

I debugged a .net 1.1 based windows application which exits silently upon start up. The problem itself is trivial and not worth mentioning. What I want to say is there is a subtle point about sos.dll version.When I was debugging, I started the applicati

On android, when a process crashes in native code, the call stack of the process will be saved to a log file in /data/tombstomes/, and written to logcat as well. The information is helpful for debuggi

I was debugging memory leak bugs recently. The bug was caused by incorrect usage of the osip library. It's not uncommon that we meet problems when we rely on a library or framework that we don't fully understand. Symptom and debuggingThe symptom is our

To help me memorize commonly used programming and debugging tools on windows and linux, I created a wiki page here:http://code.google.com/p/rxwen-blog-stuff/wiki/CommonProgrammingAndDebuggingToolsOnWinAndLinux

Profiling is an effective way of finding out bottlenecks in an application. On windows ce platform, profiling can also be done easily.To perform profiling for native code, we can use the /callcap compiler option to enable callcap profiling. After it's en

A perplexity developers usually meet is they release the product to qa team and get a feedback of occasional crash. And the testers don't have a solid reproduction steps. In this case, it's a time-consuming task to find out the cause and fix it. What we ne

Symptom:Recently, we are experiencing process hang with the goAhead web server. The symptom can be reproduced if we disconnect the network cable while the browser is loading a page. When it occurs, we can see that the process doesn't occupy any cpu resourc

In visual studio, we can add trace point while debugging. It's a helpful feature to analyze the behavior of a program without breaking the execution of the target process. Isn't it useful if you debug a multi-thread process?At first glance, it seems to be

ipython doesn't work with built-in pdb debugger. While I tried to debug a python script with "run -d script.py" within ipython shell, I got bellow error:AttributeError: Pdb instance has no attribute 'curframe'To debug script in ipython, we need to use a

Stack corruption bug is sometimes difficult to fix if we can't find out the steps to reproduce it. The cause of the bug may not be so obvious. The best thing is to have the culprit reveal itself as soon as possible, even before the stack corrupted. In this

As I posted before, logging is an important debugging means. In order to be truly useful and convenient, the logging module should at lease have two traits:can be turned on and off globallysupports the concept of logging levelosip also comes with a matu

After we release a product to market, it's not uncommon that our customer report bugs to us, even we gained a lot of confidence from "thorough" tests by ourselves and QA guys. If it occurs, we usually don't have the luxury to perform debugging in productio

Sometimes, it's helpful to trace system api calls during debugging so that we can determine if the incorrect behavior is caused by passing wrong argument to a function or not. Or we can try to identify the performance bottleneck with it. There are several

While debugging os or application crash bug on windows ce (the tool winaddr2line isnt particularly used for windows CE application, it can be used for normal windows application too.) platform, dev