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

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How can I create a memory dump of a production system without affecting performance?

I am trying to analyze a hard-to-track memory leak problem on a production IIS web server running an ASP.NET application. To that end I am trying to create a dump file of the memory to analyze it ...
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1answer
20 views

Videos from website do not show in Firefox running on Windows XP

This problem shows up using Firefox 33.1.1 on Windows XP (Service Pack 3). NBA Stats allows you to review past games by watching play-by-play video segments. I use this website to cross-check my logs ...
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8 views

Debugging Ipads With Externally Connected Devices

I currently writing an ipad app that connects to an external device. Because It's connected via the ipads output cable I cant have the ipad connected to my mac while test code and therefore can't use ...
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1answer
3k views

What causes “host process for windows services stopped working and was closed”?

When computer (32-bit Windows Vista 32-bit 6.0 Home Premium SP 2) randomly has a "Host Process for Windows Services stopped working and was closed" error: This popup message simply occur out of ...
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1answer
4k views

How to debug Remote Desktop Connection when intranet connection works, but not external

How can I setup Remote Desktop Connection (RDP) when I've exhausted all my known searchable resources? I am attempting to set up Remote Desktop Connection on my Windows 7 Ultimate version and have ...
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1answer
31 views

Can anyone recommend a kernel System Filter Driver

Can anyone recommend a minifilter/systemfilter driver application that runs in kernel. I specifically want to use this to intercept calls to a device driver.
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3answers
26k views

How do you display POST data with cURL?

As an example, POSTing to a web server with the -v argument: curl -v http://testserver.com/post -d "firstname=john&lastname=doe" And the output > POST /post HTTP/1.1 > User-Agent: ...
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43 views

PC enters a state where it's “sleeping” but cannot wake up

Sometimes, I come back to my computer to see it look like it's sleeping, but I'm unable to wake it up (either with the keyboard/mouse or with the power button). The power light on the front of my ...
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3answers
1k views

How to see exception message in Google Chrome while paused?

I'm using Google Chrome for debugging JavaScript. I opened up the JavaScript Console and the "Pause on Exception" feature is enabled. Now whenever I run JavaScript that has an exception in it, it ...
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11 views

How to evaluate expressions in Eclipse EE while debugging

In chrome, when you have some javascript code, like this one: if(1 === 50) { return false; } else if(1 === 1) { return true; } You are able to highlight the expressions in the if ...
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1answer
45 views

Intalling gdb and pstack on Amazon Linux AMI

I tried installing gdb and pstack on EC2 Instance with Amazon Linux AMI (it was not installed by default), and it's not working. Tried: [ec2-user@ip-172-21-ab-xyz ~]$ sudo yum install gdb Loaded ...
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22 views

Debugging choppy video playback on LAN - Bandwidth measurement

I am using VLC to playback videos stored on a personal NAS. I sometimes experience choppy playback, which I would like to diagnose by measuring with precision what bandwidth is required by the video ...
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1answer
59 views

How to connect to Windows XP Embedded and Windows 7(in domain)

I have annoying problem. I would like to connect and see network drives (for purpose of remote debugging) to computer with Windows XP Embedded, Service pack 2. Client computer is Windows 7, service ...
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158 views

OneDrive Sync Engine has stopped working (with callstack and disassembly)

Searching online I can see that some people have this problem but I cannot find any solution. I tried to change onedrive location, run the onedrive troubleshooter (no problems found) and nothing ...
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3answers
2k views

How do I debug “X11 connection rejected because of wrong authentication”

I have a problem with X forwarding through SSH. I've battled for ages, but no-one can seem to help. I'm now taking a different tact. I would like to know how I would debug the errors? What logs ...
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16 views

What logging can I turn on / dump can I retrieve in order to report this bug in Chrome?

Once or twice a week, I run into a bug in Chrome where not only all my Chrome tabs, but even all my Chrome windows, appear frozen, due to an invisible Javascript confirmation dialog. I don't know what ...
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0answers
55 views

BSOD 7b diagnostic on VirtualBox

I migrate my machine (Win7 x86) to Virtualbox VM with SATA AHCI controller. VBox SATA has device ID 8086:2829 On clean installed Win 7 I see that the driver is msahci On serial debug I see that msahci ...
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4answers
2k views

Hard disk has space, but I can't transfer a file to it?

I've got an external hard disk that has 147 GB of free storage left, but when I try to transfer a file to it, it gives an error: What's causing the error? How can we fix it?
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1answer
8 views

Can the IO streams of Apache 2.x be intercepted? (especially curious about mod_wsgi)

Just trying out ideas useful for future debugging adventures. I thought that it would be useful to take a look directly at at what goes on between the server and mod_wsgi. So anyone aware if I can ...
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33 views

Fiddler: Is it possible to replace/hide part of URL without affecting the content?

I'm using Fiddler debugging proxy, And the code below can intercept the server(YouTube) data and modify the HTML information before it reaches the client(my web broswer). if ...
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1answer
41 views

How can I know whether a binary file is an executable or a library?

I have a binary file, but how can know the file type, lib or exe. By opening it with notepad++, it shows ELF and a lot of random symbols.
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1answer
71 views

Repeat last test in debug mode in Visual Studio 2013

It is possible to repeat the last test, but in debug mode? When running the last test (even when I manually last ran it in debug mode), it will run without debug mode. I thought perhaps I could map ...
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1answer
667 views

How do I remove these “autofocus” selection borders from the Windows 8.1/8 tile screen?

Good evening, everyone. I've just recently started to notice some unintended-enabled borders around my Windows 8 machine. Here are some screenshots: In the above photos, you will notice that ...
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30 views

Analyzing the actions of a running program

Do you know a Windows software (or several) that can analyze what a running program is doing ? For example, detecting if the program is connecting to the Internet (and to what), of sending data via ...
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1answer
429 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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1answer
43 views

Make browser and server use the eNULL SSL/TLS cipher

Is it possible to make a browser and a web server use SSL/TLS (https) with eNULL cipher for debugging purposes in a development environment (e.g. wireshark capture without setting up SSL stream ...
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84 views

How to debug a Win32 GUI program if OllyDbg does not open it?

Basically I followed the tutorial in this website: How to get the serial number of a program with OllyDbg. I got "Nothing found *" in PEiD, with Subsysytem = "Win32 GUI", and V. Size & R. Size ...
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1answer
81 views

How do I debug Excel / OpenOffice / LibreOffice macros - getting started

How do I get started with debugging VBA macros? This is to help to locate faults and mistakes within the code and the data it handles.
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1answer
55 views

How slow is the x86 single-step debugging feature?

The x86 architecture provides a hardware single-step trap for debugging. How much does it slow down the running program? If, say, a Linux kernel function was created to do nothing but single step a ...
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2answers
810 views

TF101 Android: Image block device via adb

I have an Asus TF101 tablet running Android ICS. I am trying to image the entire internal flash file system onto my desktop via adb. The problem is that the image I am obtaining appears to be ...
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2answers
9k views

Visual Studio not auto-building when I press the debug button

I'm writing code in Visual Studio but whenever I want to test the application and press the green arrow for "Start debugging", Visual Studio does not automatically recompile the active solution for me ...
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25 views

Remote browser session debugging: Is there a tool to get a “core dump” of a browser's interaction with a webpage?

A user of my website is having a problem that I can't reproduce. It is maddening to debug, because all I can really ask the user (nontechnical person) is their OS version and browser version. Is ...
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1answer
198 views

Debian: Version number of installed package differ from those in repository causing dependency issues

I can't install libav-dbg due to dependency issues with version numbers of installed packages, that do not correspond to those in the repository. How is this possible, and how can i resolve the issue? ...
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1answer
81 views

How to know if i can access my intranet computer from outside the network?

Trying to debug some remote processes, and i'm inside an intranet. I use a debugger that has a server which listens for connections, and in the debugged code, i make a call via the debugger API, to ...
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2answers
221 views

ASUS RT-N66U how to identify source of traffic spike

I have an ASUS RT-N66U as my home router. We are experiencing some traffic spikes in downloading over WiFi that slow all other activity to a crawl. Is there a way to identify the source (ip/host) of ...
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39 views

Undocking sometimes leaves a tray icon/hangs

Sometimes (maybe every 10th undocking) after undocking the laptop the function HotPlugSafeRemovalNotification from hotplug.dll hangs. It also leaves a system tray icon which looks as follows: The ...
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1answer
685 views

How to hide debugging output in Mathematica?

I want hide all outputs created by Print command from user's function defined in module .m. More precisely the problem is following: I have a module that solves some specific task (It's not ...
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3answers
506 views

How to capture the arguments passed to an .exe when is called by another program? (Windows)

I have two programs: When A.exe is running, it calls B.exe with a series of arguments. Any suggestions as to how can I see these arguments? I could write another B.exe program to do that, but it ...
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1answer
43 views

Eliminate cause of crash - if rooted on host

Is there a way to pin down the moments (e.g., 15 seconds) just before a program crashes on windows-xp-sp3? It would be interesting to inspect applications and executables and their communication ...
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131 views

XCode to debug gdb-debuggable executable

I have compiled a cmake-based executable that is (miraculously) debuggable in gdb. So examining hundreds of variables with the terminal becomes a little bit slow for very large projects and I would ...
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1answer
56 views

Is it possible to give the full path to an executable in “Image Execution Options\*\Debugger”?

Image Execution Options (HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options) with a key named after the executable and a string (REG_SZ) value is known to be ...
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69 views

gDEBugger crashes in Windows 8.1

I want to debug and profile some OpenGL code so I have installed the latest version of gDEBugger on a Macbook Pro with NVidia 9400m graphics card, in Windows 8.1. When I try to run it, its ...
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1answer
32 views

Read registers on a NIC card on Windows

I have a Realtek Ethernet Controller on my x86 machine running Windows 7. I have the datasheet for the Ethernet controller. I am trying to debug a low-level issue and I need to read certain registers ...
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3answers
2k views

How can I see all keypresses on the keyboard?

I've been given a laptop to fix - it is 'randomly scrolling documents'. I'm almost certain it's a faulty connection in the keyboard, causing page-down to fire. Is there a program I can use to monitor ...
15
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1answer
9k views

setting ulimit on a running process

I launched a server application and I want to run it for a long time for testing purpose. Unfortunately, I forgot to set before ulimit -c unlimited to catch an eventual crash and inspect it. Is there ...
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3answers
316 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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25 views

Logging/debugging the bash startup process

My bash shell sometimes takes quite a while to start, probably due to a lot of stuff happening in my various dot files (e.g. .bash_profile, etc.). Is there any way to properly log the bash startup ...
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37 views

debugger tends to block server when listening until restarting phpStorm

I follwed the instructions from this post on how to set up xdebug with php storm. It works great but the problem is that it works for the first request only. ie Let's say I turn the listener on. I ...
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157 views

No COM1 port on hyper-v

I just made a fresh Windows 8.1 install and am trying to set-up a VM for kernel debugging. Therefore, I need to create a serial link to debug the VM using windbg. Usually I just simply add a new COM ...
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1answer
98 views

how to save the output of scp command?

I want to save the output of scp command each a laps of time, in fact we i make scp --debug , I see the progressive rate of transferring file . I want to save each time (1s exp) the output of the ...