Hacker News with Generative AI: Debugging

Debugging Hetzner: Uncovering failures with powerstat, sensors, and dmidecode (ubicloud.com)
At Ubicloud, we build software that turns bare metal providers into cloud platforms. One of the providers we like is Hetzner because of their affordable and reliable servers.
Debugging, Hardware, Cloud Computing, Hetzner
328 points by ngalstyan4 1 day ago | 105 comments
Show HN: Subtrace – Wireshark for Docker Containers (github.com/subtrace)
Subtrace is Chrome DevTools for your backend. It tracks the API requests coming in and going out of your servers so that you can solve problems in production quickly.
Docker, Debugging, Monitoring, Development Tools
345 points by adtac 2 days ago | 71 comments
Making my debug build run 100x faster so that it is finally usable (gaultier.github.io)
SIMD and dedicated silicon to the rescue.
Optimization, Performance, Debugging, Software Development
82 points by broken_broken_ 2 days ago | 20 comments
Debugging an Undebuggable App (bryce.co)
Debugging, Software Development, Application Development
344 points by xmprt 3 days ago | 57 comments
I helped fix sleep-wake hangs on Linux with AMD GPUs (gitlab.io)
I dual-boot my desktop between Windows and Linux. Over the past few years, Linux would often crash when I tried to sleep my computer with high RAM usage. Upon waking it would show a black screen with moving cursor, or enter a "vegetative" state with no image on-screen, only responding to magic SysRq or a hard reset. I traced this behavior to an amdgpu driver power/memory management bug, which took over a year to brainstorm and implement solutions for.
Linux, AMD GPUs, Debugging, Operating Systems, Hardware
756 points by fanf2 4 days ago | 208 comments
Exposing concurrency bugs with a custom scheduler (lwn.net)
Jake Hillion gave a presentation at FOSDEM about using sched_ext, the BPF scheduling framework that was introduced in kernel version 6.12, to help find elusive concurrency problems.
Concurrency, Linux Kernel, Debugging, BPF, Open Source
32 points by signa11 7 days ago | 5 comments
Do You Use a Debugger? (sandordargo.com)
You might laugh at this question because your answer is of course, who wouldn’t! Especially in the world of C++. Equally, you might laugh at this question, because your answer is obviously no! You write clean code that reads like well-written prose and the behaviour of your code is clearly documented in automated tests.
Debugging, C++, Software Development
5 points by ingve 8 days ago | 9 comments
Show HN: Letting LLMs Run a Debugger (github.com/mohsen1)
LLM Debugger is a VSCode extension that demonstrates the use of large language models (LLMs) for active debugging of programs.
Debugging, Generative AI, Software, Tools
147 points by mohsen1 8 days ago | 30 comments
Auto-Rewind for Daily Test (Apache NuttX RTOS) (lupyuen.org)
If the Daily Test fails for Apache NuttX RTOS … Can we Auto-Rewind and discover the Breaking Commit? Let’s try this (pic above)
Software, Testing, Debugging, Open Source, Operating Systems
7 points by lupyuen 12 days ago | 1 comments
Funtrace: C++ function call tracer for x86/Linux (github.com/yosefk)
A function call tracer is a kind of profiler showing a timeline of function call and return events. Here's an example trace captured by funtrace from Krita:
C++, Linux, Software, Profiling, Debugging
3 points by ingve 13 days ago | 0 comments
Memory profilers, call graphs, exception reports, and telemetry (nuanced.dev)
To meaningfully solve problems, developers aggregate context from several disparate sources that live both within and outside code. This context is often scattered across a daunting array of tools that developers navigate daily: from the AWS Console's labyrinth of services to Kubernetes' multi-layered configs, Datadog's dense metric displays to distributed traces spanning dozens of services. Each tool demands its own expertise, creating constant context-switching that interrupts flow and drains productivity [1].
Debugging, Developer Tools, Software Development, Productivity
65 points by sebg 13 days ago | 3 comments
Show HN: Heap Explorer (github.com/heap-exploitation)
Show HN, Software, Debugging, Security
73 points by bkallus 15 days ago | 5 comments
Profiling in production with function call traces (yosefk.com)
A timeline showing function call and return events is a great way to debug performance problems, especially in production. In particular, it's often much more effective than traditional sampling profilers, for reasons we’ll discuss. However, the adoption of function tracing in the industry remains uneven because of a chicken-and-egg problem.
Debugging, Performance Optimization, Production, Software Development, Tools
9 points by luu 15 days ago | 0 comments
Httptap: View HTTP/HTTPS requests made by any Linux program (github.com/monasticacademy)
View the HTTP and HTTPS requests made by any linux program by running httptap -- <command>. For example, the following runs curl on "monasticacademy.org", which results in an HTTP status of 308 (Redirect):
Linux, Networking, Debugging, Tools, Security
664 points by alexflint 17 days ago | 145 comments
How to monitor and debug Terraform (Terragrunt/OpenTofu) using OpenTelemetry (dash0.com)
This blog post provides a comprehensive guide on monitoring and debugging Terragrunt, Terraform/OpenTofu using OpenTelemetry.
Terraform, OpenTelemetry, Debugging, Monitoring
10 points by marbir1981 17 days ago | 1 comments
Ruby Source Parsing (alchemists.io)
One powerful tool in your debugging arsenal is the ability to quickly obtain an object’s source location and/or the original source code itself.
Ruby, Debugging, Programming, Tools
3 points by chmaynard 19 days ago | 0 comments
Practicing graphical debugging using visualizations of the Hilbert curve (akkartik.name)
“..you don't understand things, you just get used to them.” — John von Neumann
Debugging, Visualization, Algorithms, Computer Science
4 points by surprisetalk 20 days ago | 0 comments
List Any Linux Tracepoint with Their Arguments, Datatypes and Related Structs (tanelpoder.com)
This should be something useful for Linux kernel explorers and eBPF nerds!
Linux Kernel, eBPF, Programming, Debugging, System Programming
40 points by tanelpoder 20 days ago | 5 comments
Show HN: Uscope, a new Linux debugger written from scratch (github.com/jcalabro)
uscope (pronounced "microscope") is a native code graphical debugger and introspection toolchain for Linux.
Debugging, Linux, Open Source, Software, Tools
262 points by jcalabro 20 days ago | 132 comments
Ask HN: What was the most annoying bug you ever debugged? (ycombinator.com)
Ask HN: What was the most annoying bug you ever debugged?
Software, Debugging, Programming, User Experience
15 points by ZevsVultAveHera 21 days ago | 18 comments
Beyond file trees: why AI coding assistants need smarter context (nuanced.dev)
When debugging code, experienced developers don't start by reading every file in the repository. They trace execution paths, follow function calls, and leverage their understanding of the system architecture. Yet many AI coding tools today work like developers who haven't learned these navigation skills—they rely on basic file listings and attempt to cram as much code as possible into their limited context windows.
Artificial Intelligence, Software Development, Programming, Debugging
11 points by aymandfire 23 days ago | 6 comments
Tmux-inspect: debug objects in tmux popups with jless (github.com/raine)
A Node.js library for inspecting objects during development using tmux popups and jless.
Node.js, Development, Debugging, Tmux
7 points by rane 25 days ago | 0 comments
When AI promises speed but delivers debugging hell (nsavage.substack.com)
I am launching a new app today: Codescribble. Codescribble is a basic shared text editor. Two or more people can open the same file and work on it at the same time, like a basic Google Doc. This focuses on quickly getting you and collaborators on the same document quickly.
Artificial Intelligence, Debugging, Software Development, Collaboration Tools
202 points by nsavage 25 days ago | 253 comments
Ask HN: How to automate collecting HAR file while user is browsing (ycombinator.com)
We are facing an intermittent issue in our web application where for some users for some reasons http requests are ending in error ( 400s ) esp. during token refresh with authentication server.
Web Development, Debugging, Automation, HTTP, Authentication
25 points by royalghost 27 days ago | 19 comments
How to Inspect React Server Component Activity with Next.js and OpenTelemetry (dash0.com)
As web developers, we've become accustomed to the incredible power of browser dev tools. Need to understand why a component isn't rendering correctly? Pop open the inspector! Want to trace a network request? The Network tab is your best friend. Debugging, profiling, and understanding frontend code has never been easier. Until now.
React, Server Components, Next.js, Debugging, OpenTelemetry
30 points by bripkens 28 days ago | 51 comments
The Hunt for Error -22 (tweedegolf.nl)
This article is a linear retrospective of how we searched for and eventually fixed a hard-to-find bug in our embedded software. If you're only interested in the outcome, then make sure to read the last three sections.
Debugging, Embedded Software, Software Development
66 points by mpalme 29 days ago | 25 comments
System Informer (systeminformer.com)
A free, powerful, multi-purpose tool that helps you monitor system resources, debug software and detect malware.
System Monitoring, Software, Malware Detection, Debugging
26 points by belter 30 days ago | 3 comments
The Hunt for Error -22 (tweedegolf.nl)
This article is a linear retrospective of how we searched for and eventually fixed a hard-to-find bug in our embedded software. If you're only interested in the outcome, then make sure to read the last three sections.
Software, Debugging, Embedded Systems
6 points by todsacerdoti 30 days ago | 0 comments
Debugging C++ is a UI nightmare (core-explorer.github.io)
If you are a maintainer or developer of a debugger, don’t be offended, I’m not talking about you or your product.
C++, Debugging, User Interface
39 points by core-explorer 32 days ago | 20 comments
Creating wrappers for Windows exe files using Homebrew and Wine (flaky.build)
I recently noticed that my 2013 Ford Transit mk7 van doesn’t have great observability to debug what went wrong and it just shows ENGINE MALFUNCTION text in the small screen instead of actually providing helpful error messages.
Software, Operating Systems, Debugging, Ford
45 points by ingve 32 days ago | 0 comments