Questions tagged [debugging]
is a process of finding and reducing the number of bugs, or defects, in a computer program, thus making it behave as expected
469 questions
1 vote
0 answers
46 views
Mouse middle-button doesn't work in libev, but does in GUIs
I want to use my mouse's middle-button in the TTY, so I tried to debug it. When I perform a middle-click, it doesn't show up in evtest /dev/input/eventN. All other actions show up, so I'm in the ...
- 111
0 votes
0 answers
30 views
Signal handling in debugger in linux
I am working on a debugger and found an issue. I start at the beginning of the dynamic linker (this is a low-level debugger). At this address, I set it so that for a particular signal, the process ...
1 vote
0 answers
30 views
Process Maps in s390x linux systems
So I am working on a debugger for linux s390x system and have the whole disassembler etc set up for reading the ELF file. For debugger I just run it on the process with base address from the process ...
0 votes
0 answers
57 views
LibreOffice crashes with Miniconda3 in path
this is a post that has workaround but not an explanation Sometime in last 4 weeks my LibreOffice on my debian started crashing. Not producing window with eg. LOWriter, just a "crashed docs ...
- 131
0 votes
1 answer
104 views
How to debug the xdg free desktop menu
I'm using KDE on last debian and i get a lot of problem with the menu. I was using the kdemenu to organise the start menu, but i get a lot of trouble : Some .desktop shows in the start menu but not in ...
- 1
1 vote
1 answer
684 views
Arch Linux - pacman stuck in "failed to commit transaction (could not find or read package)" following failed upgrade
During a routine sudo pacman -Syu --needed involving about 50 packages, the upgrade exited early due to a "Less than 1 b/s transferred the last 10 seconds" error. Follwing that, I can no ...
- 437
0 votes
1 answer
84 views
flock not working between forks on the same fd
I am working on a process that forks several times. To debug it, I am using a debug file for which I open a fd and which stays the same for all child forks. Then I have a function print_debug, that ...
- 25
1 vote
0 answers
365 views
OBS Studio Virtual Camera: Failed to start streaming on '/dev/video2'
Distribution: Arch Linux OBS Version: 31.0.3 Kernel Version: 6.14.2-arch1-1 v4l2loopback-utils Version: 0.14.0-1 vulkan-radeon Version: 25.0.3-1 > v4l2-ctl --list-devices OBS Virtual Camera (...
- 437
0 votes
1 answer
55 views
Debugging Scanner-0 Process and KVM Issues
I came across the following kernel log entry showing a task named Scanner-0 in an unexpected state, along with a call trace involving kvm_async_pf_task_wait_schedule and a page fault. [320099.377111] ...
- 561
0 votes
0 answers
48 views
Crash utility cannot resolve "p2m_top" when analyzing VMware dump (VMEM) on AlmaLinux guest
I am trying to analyze a VMware memory dump from an AlmaLinux guest. I converted the snapshot to a core dump using vmss2core: vmss2core-sb-8456865.exe -N vSRV1_Snapshot815.vmsn vSRV1_Snapshot815.vmem ...
- 561
-1 votes
1 answer
114 views
How can I invoke Steam for Linux in GDB *via its `.desktop` file*?
Problem steam-1.0.0.82-1.fc41.i686 from RPMFusion is crashing for me upon startup (when invoked from $HOME/.local/share/applications/steam.desktop). An example of this is visible at youtu.be/...
0 votes
0 answers
106 views
GDB doesn't hit catchpoint on the child process forked off from debuggee
I was re-doing what described here about multiprocessing debugging in GDB. The weird thing is that GDB doesn't hit the exec catchpoint on the child process running cat command (the latter is forked ...
- 385
1 vote
2 answers
142 views
How to get bash script's current line contents being processed prior to interpretation? [duplicate]
When using bash -x or set -x in a script the output shows the result of the line being processed but not the source line which produced the result. There are times when knowing this as well could ...
- 123
0 votes
1 answer
54 views
Does Bash have an option to diagnose "expanded to empty value" variables? [duplicate]
Does Bash have an option to diagnose (and optionally abort execution) "expanded to empty value" variables? Example (hypothetical): $ bash -c 'echo $x' --xxx bash: line 1: variable 'x' ...
- 757
0 votes
0 answers
96 views
(How) can I set source path (in debuginfo) when building debian package
I need debuginfo for some libraries, for example gstreamer (which are not available in debian repo), but can be built using source packages. However it turns out that the source paths in the debug ...
- 492