Questions tagged [debugging]

Debugging is a methodical process of finding and reducing the number of bugs, or defects, in a computer program

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New issue encountered installing ubuntu. same bug different problem

was attempting to dual boot Ubuntu on an 2006 macbook pro intel core-duo. opted instead for full metal install and completely erased Mac OS. assuming it might clear the bug. i was wrong. i was ...
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Unable to install qemu? [duplicate]

I used the following command: sudo apt install libexpect-perl qemu-system-x86 qemu-utils But, I received the following errors: Err:1 http://deb.debian.org/debian buster/main amd64 ovmf all 0~20181115....
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1answer
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Perf sched_stat_sleep issues after reboot

I'm using perf's sched:sched_stat_sleep on Ubuntu 20.04, and have added the following to the /etc/fstab: debugfs /sys/kernel/debug debugfs defaults 0 0 tracefs /sys/kernel/tracing tracefs defaults ...
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No debuginfo of 4.15.0-133 kernel version

We have encountered a crash scenerio, core dump was generated within /var/crash without problem From dmesg.202103260914 it seems a memory access error during timer handle process, but we need to debug ...
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ubuntu is freezing very much, there is a need to fix this!

ubuntu is a great operating system and it has everything which we want for our use. but it has a problem, it is freezing very much. everything just stops, no keyboard keys work and not the mouse and ...
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1answer
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BIOS ACPI bug AE_AML_PACKAGE_LIMIT

I've been getting this persistant bug, ACPI BIOS Error (bug): AE_AML_PACKAGE_LIMIT, Index (0x0000000FF) is beyond end of object (length 0xF) (20200528/exoparg2-393) I've played around with the grub ...
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Strange caps-lock behavior on Ubuntu laptops

So two weeks ago I got a new laptop and put Ubuntu on it to replace Windows 10 it came with. I was previously a MacOS user, and have also run Windows in the past. I am on my second laptop running ...
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Ubuntu 16.04 | Teamviewer not installed but working

First sorry for my mispell i'm French, here's my problem, i'm on Ubuntu 16.04 and a version of Teamviewer (15.0.14842) is installed on my computer. I didn't install it and after a few searches with ...
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gdb vmlinux file returning Ignoring packet error, continuing

i installed ubuntu kernel debug symbol https://bugs.launchpad.net/ubuntu/focal/amd64/linux-image-5.4.0-40-generic-dbgsym/5.4.0-40.44 on ubuntu 20.04 lts virtual machine I opened up 2 ssh terminal on ...
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Cannot install GNOME Shell debug symbols: symbols conflict with binary

WPS Office is making GNOME Shell crash. I am trying to submit an useful bug report for this. But when I try to install gnome-shell debug symbols, the symbols in the repositories require GNOME Shell 3....
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Fixing GPU hang caused by i915 driver

Ran updates on my laptop recently, and after rebooting, my laptop started behaving weirdly. After I logged in, the screen started flickering, and as soon as I opened a window (the application menu ...
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Super key stuck on 20.04

I was recently editing a gnome extension when my computer started acting like the super key is constantly pressed. I can only execute super shortcuts with the keyboard. In addition, all shortcut ...
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190 views

What tool to use to debug a stored procedure on mySQL?

I am using mySQL and need to write a stored procedure to accomplish a time intensive task that needs to run quickly as possible. I am looking for a tool to use to write (and debug) this, I started out ...
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I can not find coredump

lsb_release -a No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 18.04.4 LTS Release: 18.04 Codename: bionic ***** Source ****** // This is a disposable program for ...
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Can't get audio to work on right device, missing control center

I upgraded to Ubuntu 20.04 recently, then had issues with my CPU and motherboard so swapped them out, and now I cant swap what device my audio comes from. I set my headphones to default in the ...
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How to debug slow login

NOTE: Login, not boot. On Ubuntu 20.04. After entering my password, my wallpaper appears, and some version of the bars (when using Gnome). Everything is frozen for a minute before waking up. Same ...
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KernelOops Soft Lockup CPU#0

I'm having problems with my system. Every once and then it freezes completely and upon reboot I get a KernelOops Bug error. I'm new to system debugging and I don't know what data you might need on ...
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1answer
478 views

what is the difference between gdb and gdb-peda?

I have tried to search on google but still could not find anything that i understand. Can anyone tell me the difference between them? And which one is better to debug c++?
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step through vbs script in ubuntu

I have some malware passed down to me from an effected user. It detects sand boxing, and tools used to analyze code. visual studio, is right out, vmware and virtualbox are also no good. The code is ...
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How can I contribute to an Ubuntu package on Launchpad with an upstream on Github?

I recently reported a bug for which a fix already exists on GitHub (upstream), and I would like to cherry-pick such fix and submit it on Launchpad for review for focal 20.04. However, I couldn't find ...
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Where can I fix this bug in Kubuntu?

So I use Kubuntu. And when I have my NAS powered off, I can't access the file save/load menu as it hangs. When I read /var/log/syslog I get the following logs: Aug 14 19:02:44 <hostname> kernel: ...
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Debugging a CRD host

I’m new to debugging and I have a task to debug this issue. I know I have to create a CRD host and a TLS context CRD with a host name but I’m not sure how. Can someone explain to me how to do this? ...
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Debugging tracing kernel functions involved

If I want to dubug one subsystem of kernel, like let say the file system & want to see what all files get included inbetween and how the data is trasfered in from userspace to kernel space to ...
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Can we safely uninstall the *.dbg packages

I use Ubuntu Studio 20.04 LTS. I've found some *.dbg packages installed into my system. I can see them when I use Synaptic Package Manager. I wonder if those packages are absolutely necessary and if ...
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Advice for troubleshooting a preseed file for Ubuntu 20.04?

I am trying to automate an ubuntu installation for which, need to copy certain files from usb drive to target folder. "ubiquity ubiquity/success_command string \ cp -a /cdrom/Postinstall /target/...
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How can I view a core dump on Ubuntu 18.04?

I have a program which is aborting and I want to view a core dump. I am using addresssanitizer which is causing the abort when it hits a heap overflow. I have done the following: sudo sysctl -w ...
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2answers
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Trying to install KDbg debugger

I'm trying to install KDbg debugger to use while I code in C and have some problems in figuring out what to do. As suggested in this other similar question: How to install software provided in ...
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19.10: `curecoin-qt` wallet installation fails on the last two steps

In order to make the most of the Folding@Home project (https://foldingathome.org/covid19/) and fight COVID-19 from our homelabs — tokenwise — I've tried to install the curecoin-qt wallet (https://...
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FAHClient cannot connect on Ubuntu 19.10

I've been running FAHClient successfully for one day now, and hence been contributing to the protein folding project. ... Well, I was until I recently booted my system. Now, the client won't connect, ...
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1answer
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graphics noisey, trails, slow refresh?

Please help me figure this out. Noisy graphics, like it takes time to refresh, when there is any movement on the screen. It leaves trails of static-like noise during video play (see image), if I ...
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1answer
89 views

PyCharm Debug Tool Window simply desapear

My PyCharm debug tool window isn't available anymore. I was using it without problem yesterday, however after turn the computer on and open the application it has disappeared from the side bar and ...
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154 views

Debugger in geany

I have problem with instaling debugger in geany This is my problem: > arwena@arwena-VirtualBox:~/geany-plugins/debugger$ make Making all in > src make[1]: Entering directory > '/home/arwena/...
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1answer
1k views

Geany debugger installation

I want to add new plugins for debugging to Geany. But I have the following problem: Reading package lists... Done Building dependency tree Reading state information... Done Some packages could ...
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1answer
481 views

Notifications wrongly positioned in my KDE+i3wm setup

I am observing a weird behavior on my KDE+i3wm setup. The issue The issue is with the positioning of the notifications. Even though I have configured the notifications to appear near the panel. They ...
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1answer
110 views

Kubuntu freezes whenever I boot my laptop on battery. Why?

I have installed Kubuntu(v19.10) and since the first day, I'm facing this really annoying bug which freezes up my laptop(ASUS FX505DT). The issue I face this bug whenever I boot my laptop on ...
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1answer
54 views

Debug symbols for KMail 5.7.3 on Kubuntu 18.04.03 LTS

In which package can I find the debug symbols for KMail 5.7.3 on Kubuntu 18.04.03 LTS? Apport is not able to find them and apt-get search also does not give the required package.
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Debugging Assembly with DDD

I have a problem when debugging Assembly code with DDD (also tried GDB). When I compile my program and make executable file with gcc -g -o program program.S I need to add -m32 to make 32-bit ...
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1answer
124 views

Is there a command to know whether my “/var/lib/dpkg/status” is fine? To be sure that there is nothing wrong in dpkg and its files [duplicate]

I ran different commands. Maybe I have also corrupted many things. But I do not see any sort of error or crashes so far. So my main question is how do I know that my pc is healthy and there is ...
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161 views

Manually compile and install debugging symbols for the recoll package?

I've got some crash files for recoll from which I would like to extract a symbolic stack trace. Unfortunately, there are no debug symbols available for this package, so my stack traces are mostly ...
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1answer
579 views

What does shellcheck warning SC2129 “Consider using { cmd1; cmd2; } >> file instead of individual redirects.” mean?

I have this shellcheck warning I can't figure out: In /mnt/e/bin/iconic line 540: printf "FALSE|" >> "$IconsRaw" # Select field number 1 ^-- ...
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How to solve warnings from GDB?

I need help about debugging GIMP 2.10.10 O.S. Ubuntu 18.04.2 LTS GDB Version (Ubuntu 8.1-0ubuntu3) 8.1.0.20180409-git I get this message from GDB when i try to generate a backtrace inside flatpak ...
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1answer
150 views

Is there a way to make Libre Office more responsive in order to be able to center text while the window is in half-screen display

So first of all I am using Libre Office with the following settings: Version: 6.0.7.3 Build ID: 1:6.0.7-0ubuntu0.18.04.2 CPU threads:8; OS: Linux 4.18; UI render: default; VCL: gtk3; Locale:...
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1answer
167 views

Frequent freezes w Ubuntu 18.04

My laptop freezes about every day, and I am using REISUB to recover. I tend to have Firefox open with a few tabs, maybe Youtube for music, Foxit PDF, Libre Office Writer, Spyder for Python, file ...
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1answer
495 views

Does systemd try to mount my luks keyfile?

Please help verifying if this is a bug or just misconfiguration on my part. When I try having my LVM setup decrypted on boot, using a keyfile, the system is trying to mount the path to my keyfile, ...
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1answer
202 views

I dont fix this error when make rtl8821ce!

This is error (initialization from incompatible pointer type):
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How to step into using gcc in Ubuntu [duplicate]

I'm using Ubuntu and i'm programming in C language using the gcc compiler. In Visual Studio on Windows I can use step-into in order to see all the variables I have and which values they have. This ...
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How do I figure out which package is causing my black screen issues?

I am getting a black screen on different linux distributions (Ubuntu 18.04, Kubuntu 18.04, Manjaro GNOME 17.1.12) as long as only one monitor is enabled and connected. When 2 monitors are connected ...
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204 views

Screenshot logs me out

As soon as I press Alt+PrtScn (which is supposed to take a screenshot of a window) instead it logs me out. Any ideas on how to fix this?
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On Ubuntu 18.04, RawTherapee freezing entire computer

I am using Ubuntu 18.04 on a HP elite 7100 microtower, Intel i7 with 8 GB RAM. Works great, except when I use RawTherapee it freezes the entire computer. I usually have Google Chrome streaming music ...
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2answers
2k views

Dolphin Emulator 5 freezing - Ubuntu 18.04

I installed Dolphin Emulator 5 and loaded a game (New Super Mario Bros). The game starts, I can select the level I want to play, then right about when the game should start Dolphin freezes completely. ...

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