To debug is to attempt to locate and remove errors (bugs) in a computer system.

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473 views

How to investigate the cause for unresponsiveness on Linux? [closed]

I apologize that the problem I'm writing about is not very concrete. I use KDE4 on Debian testing, and use KDE's file manager Dolphin very often, most of the time without problems. Recently, I suppose ...
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1answer
615 views

How do I configure Wireshark to see only the problems?

I know a bit about networks but I have so far failed to define a filter which removes all "good" traffic from the display (i.e. all packets that were replied, all data transfers which were completed ...
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0answers
392 views

debug not working in PhpStorm

I've got a fresh PhpStorm 6.0.3 installation on my machine. Unfortunately when I create a project and place an index.html in it, select that file and click on the debug icon, Chrome is launched but ...
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0answers
58 views

Windows 8.1 Recent Apps is invisible

So I updated from windows 8 to 8.1, and ever since, that menu that comes up with you hover the mouse in the top left of the screen (that shows your recent win8 apps) is bugged. It shows two parts of ...
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68 views

IE7 on XP, how to enable script debugging

I have Windows XP SP3 and IE 7.0.5730.13 I need to be able to debug javascript viewing my Website in IE7 I've gone into Internet Options > Advanced and unchecked 'Disable Script Debugging' boxes. I've ...
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36 views

Old gdb cannot find out how to do logging

I'm running an obsolete Red Hat OS and debugging with the built-in gdb but I cannot figure out how to do logging. I've tried: set logging on But get: No symbol "logging" in current context It ...
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4answers
9k views

How to know if gdb is installed?

How can i know if gdb is installed in a unix machine? I run the following commands: > gdb > gdb main and the result is gdb: command not found but i don't if this means that gdb is ...
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2answers
2k views

How to tell what USB device caused bluescreen

I've got a mini dump from when my computer bluescreened. The debugger shows that it was a generic usb driver that caused the crash, but how to tell which one? This is the first time it's ...
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1answer
109 views

Sample the process of the frontmost application quickly?

I run a lot of beta and under development software in time-critical situations. I often find that I have to force quit an app and relaunch it quickly to get back on track, but don't have the time to ...
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1answer
2k views

How can I debug problems with Citrix XenApp?

I'm trying to connect to Citrix via Ubuntu 13.04. When I click on the application/VM button in my browser (url is .../Citrix/XenApp/site/default.aspx), button turns blue (before it was grey). Then, ...
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194 views

Mac OSX 10.8.4 semi freeze - is there a way to monitor why?

My MacBook Air keeps semi-hanging. It lets me open new windows but it typically gets stuck after that. It's happens every 30-40 mins or so and lasts for about 5 mins each time. For example I can open ...
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1answer
947 views

How do I interpret the corrupted file information produced by SFC?

Running a scan with the SFC (system file checker) produces entries in the CBS.log file. sfc /scannow Microsoft recommends running the findstr (find string) command with the c switch which searches ...
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2answers
4k views

Remote debugging with pydev > pydevd > “connection refused”. Why?

I'm trying to have remote debugging working in Eclipse (actually Aptana 3). I'm using the same computer both for server and Aptana (localhost, ubuntu 12.04) My code looks like this: ...
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1answer
522 views

Correlating strace output to source code function calls

I'm trying to fix a keyboard problem in a Linux application which I have the source code for. The application starts a TCP server and sends local keyboard and mouse events to connected clients. What's ...
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1answer
32 views

starting network interface in debug mode

Is it possible to start the network interface in debug mode? I am looking for Something like "sshd -ddd" but for a network interface. Basically I am looking for a redhat based solution.
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2answers
516 views

Dummy mail server

In my development PC I want to see all mail sent using PHP mail() function. Is there any dummy mail server that could show all sent mail (regardless of their recipient) and collect them in a mail box ...
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0answers
192 views

How to know which driver or kernel module prevents process to be killed?

Sometimes I have processes which I can't kill. Process Explorer, Task Manager and others say that "Access denied". I was told that this can be because kernel driver has a bug or something. How to ...
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0answers
345 views

Kernel panics in FreeBSD 9.1 virtualbox

I'm regularly encountering a kernel panic on my FreeBSD 9 laptop. I have installed virtualbox host and trying to run CentOS as guest. When perform "yum repolist" guest crash's my freebsd host. Here ...
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2answers
187 views

Add/Remove programs: what happens when an app installs incorrectly?

I'm a developer, and the installshields I create deploy 'debugsupport.msi', which is the visual studio 2010 debug support executable. However, when I attempt to run it, it says it's already installed ...
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3answers
448 views

Debug the cause of a bluescreen in windows [duplicate]

I get infrequently a bluescreen on my Windows 7. I would like to know, how i should start debugging this. How can I make the bluescreen last, so i can read the error mesages? How are these messages ...
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0answers
38 views

error in …what? bug hunting

I use debian testing. Two weeks ago I ran apt-get dist-upgrade on my desktop as usual. Unfortunately, a major league bug has been occurring since then. I did a few upgrades more later in the belief ...
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1answer
2k views

How to determine if mozilla firefox is buggy?

I always uses Mozilla Firefox, Since Last 3 days I noticed that I showing some annoying adds on Google Homepage and on Youtube and some javascript popups on other site words while when i checked site ...
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1answer
75 views

How can I get the name of an executable from a makefile?

I'm trying to configure vim to run "make debug" (which adds the '-g' flag to the rest of the CFLAGS), and then use Pyclewn to run "Cfile $filename here$" and then run it. This will allow me to quickly ...
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1answer
884 views

Dealing with kernel panics in FreeBSD

I'm regularly encountering a kernel panic on my FreeBSD 9 laptop. I have not been able to fix the problem by updating my system to the current stable version (which I got from the ctm-svn), so how ...
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0answers
68 views

Using the heap command line tool

I am getting a crash while using libgmalloc and I get a complain which says something like Failed to VM allocate XYZ bytes Explicitly trapping into debugger!!! Now I when I encounter this ...
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1answer
700 views

investigating bsod causes

I experienced my second bsod in two weeks and I am starting to worry, here is the dump from the latest crash, can anyone gather any interesting information here? In the hopes of preventing this in ...
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3answers
3k views

How do I start Emacs with the debug init option?

The warning that I get, as soon as I open Emacs is this: Warning (initialization): An error occurred while loading `/Users/Kaileeena/.emacs': End of file during parsing: ...
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1answer
679 views

Mac OS X debug startup items to see what is causing slow startup

I have several menu bar applications loading on startup. 2 of them load immediately, but then there is a 10-20 second pause before the other 6 or 7 load. I would like to know what is causing this ...
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277 views

Android Development - Use of RealTerm or other program to directly manipulate and monitor radio/modem to debug Android Telephony [closed]

I and others are desperately trying to port Android 4/ICS/JB/CM10.1 from the LG Optimus 2X/P990 to the LG G2X/P999 cell phone but we haven't been able to get the phone's Qualcomm mdm6600 radio/modem ...
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1answer
429 views

Why do some errors in Visual Studio disappear?

When debugging a project in Microsoft Visual Studio 2010 Professional, I built the project, resulting in about 15 errors. But as I scroll through the file containing the errors, some of the errors ...
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1answer
544 views

How to tell if a process is out of control with Process Explorer?

Besides seeing constantly high CPU usage and growing memory usage in Task Manager, and without relying on a determination based on actual interaction with the program (e.g., sluggish interface), is ...
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1answer
570 views

Which dbghelp.dll do I use for debugging?

I'm trying to configure symbols in Process Explorer. I have the Windows SDK installed (and thus, Debugging Tools). However, there are two versions of dbghelp.dll -- x86 and x64. Which one do I use? ...
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199 views

Is it possible to find what's “choking” Firefox?

Is it possible to find what exactly is causing Firefox to randomly CPU-spike at 13%, freezing it entirely? And by "exactly", I mean finding what functions/calls/modules/threads/drivers are the direct ...
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0answers
3k views

Visual Studio 2012 Very Slow Typing

I have a problem. After SP1 update, passing some time, VS 2012 becomes very-very slow when typing text. Solution size is not big, PC is quite powerful, it has 16GB of RAM, SSD drive, and i7-2600. I ...
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2answers
561 views

How can I make breakpoints work when debugging Zend Framework in Komodo IDE 7?

I am trying to use Komodo IDE 7 (7.1.3) to debug a Zend Framework (PHP) project. The project is being served by Apache on a Ubuntu Server and I am using Komodo on Windows 7 on the same LAN. The files ...
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42 views

Issue using Flash Debug Player in VM Windows Vista instance on OSX Lab machine

I have a MacMini running Lion that our developers use for testing. It has three different versions of Windows installed as Virtual Machines on it. I have been trying to install the Flash Debug Player ...
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1answer
36 views

Location of code in a page

I'm working with Google Chrome for debugging and a lot of times i cant remember where i initially implemented codes for different things... I am looking for a php code that i inserted to one of my ...
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3answers
975 views

Debug JS from browser without a server/localhost

So something I do very frequently is writing random scripts in JS without really being part of an app. To run them I just paste them in the console of either Chrome of FF which works as a nice REPL, ...
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1answer
559 views

How to trace the X window events being generated on Linux?

I recall in the past having a tool to run on Solaris that would allow me to see what X events are being generated by the keyboard and mouse. What is the application to do this on Linux Centos4?
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1answer
988 views

My PC suddenly reboots

Yesterday I opened my PC hub (after like, 5 years) to add more RAM and a new HDD. It was full of dust and balls of fluff, so I cleaned it a bit by blowing. I also removed the fan that was attached to ...
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1answer
124 views

Which Firefox add-on is responsible for a rendering bug?

I've found a page that isn't rendered correctly by Firefox with my usual profile. It is rendered correctly with a blank profile. I have quite a few add-ons. One of them is surely the culprit. How ...
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1answer
4k views

mounts not present in fstab. where are they?

my debian system is using tmfs for a few things, notably /tmp and it's using a rather small size for it. And it's nowhere to be found in my /etc/fstab i guess i could just add the entry in fstab and ...
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1answer
1k views

Open Emacs with --debug-init on OS X

I am trying to debug why my .emacs does not load. Error message. Invalid read syntax: # ... Start Emacs with the `--debug-init' option to view a complete error backtrace. My question is: How do I ...
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1answer
729 views

How to identify (remove) the source of popup messagebox at Windows XP boot?

A computer of one of my users during the boot of its Windows XP SP3 is insistingly showing a messagebox with different illegible symbols in body and title é requiring to press OK If to leave this ...
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1answer
86 views

downside to --debug-init option of Emacs?

If I modify the dotemacs file, it may introduce an error. Without --debug-init option, emacs does not invoke debugger on error while processing dotemacs. Because I modify dotemacs often, I edited my ...
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1answer
639 views

Debugging freeze in chromium

I am experiencing frequent hangs while typing in omnibox (location bar). There was similar kind of issue(segfaulted) earlier too which was a widespread bug. It happened due to compiling chromium ...
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4answers
38k views

Diagnosing slow Excel spreadsheets?

A client contacted me, complaining of Excel spreadsheets that were taking far too long to open. They use Excel for creating invoices, so they have hundreds of Excel spreadsheets with light formatting ...
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2answers
9k views

Debugging connection timeouts using strace?

I'm trying to figure out why is Eclipse spinning, so I decided to fire up strace. I found the eclipse process using: $ ps ax | grep java 5546 ? Sl 19:04 /usr/bin/java ... [arguments ...
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0answers
1k views

Windows 8 Consumer Preview - Full Core CPU Utilization by system process [closed]

I have a Lenovo X220 laptop on which I've installed Windows 8 Consumer Preview. Sometimes though it'll get stuck using 100% of a CPU core though in the SYSTEM process, and there's nothing I can do to ...
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1answer
3k views

Mac: window manager frozen, have ssh access

I have a Mac which regularly runs into a problem. The user interface stops reponding, showing a "frozen" user interface. The mouse is still moving but clicking does not trigger anything. This happens ...