Over 2,000 developers asked, and we delivered. Debugging in Zed is now a reality—and it's a big leap toward Zed 1.0. Overview We set out to build a debugger with three primary focuses: Fast: Spend less time context switching and more time debugging Familiar: In line with Zed's design language and supports everything expected from a typical debugger flow Configurable: You're able to customize the U
How a 20 year old bug in GTA San Andreas surfaced in Windows 11 24H2
Introduction Investigating the bug What is broken? But why and how? Here be dragons – the true root cause Diving deeper Whose Stack Is It Anyway? What are the odds this only broke now? Darn Windows 11! I want this fixed in my game! Final word Introduction On the SilentPatch GitHub issue tracker, I received a rather specific bug report: Skimmer airplane doesn’t exist in Windows 11 24H2 When I upgra
December 21, 2022 Hello! On Monday, we released a new zine: The Pocket Guide to Debugging! It has 47 of my favourite strategies for solving your sneakiest bugs. You can get it for $12 here: https://wizardzines.com/zines/debugging-guide, or get an 12-pack of all my zines here. Here’s the cover: the table of contents Here’s the table of contents! A few people mentioned that they were printing it out
layerx.go #0 概要 LayerXでは、バクラク事業部で開発・運用しているバクラクをはじめ、ほか事業部が開発しているほとんどのサービスでGo言語を利用しています。また、2023年の夏頃からは「Go 読書会」を社内の有志にて開催しており、組織横断的にGoの知見を交換しています。 本…
At Oxide, we use Helios as the base OS for the cloud computers we sell. Helios is a distribution of illumos, a Unix-based operating system descended from Solaris. As someone who learned illumos on the job, I’ve been really impressed by the powerful debugging tools it provides. I had a chance to use some of them recently to track down a segmentation fault in the Rust compiler, with the help of seve
I’m always scared of the bug that will finally break me - lose my sanity once and for all. The main character, the leaky program, is a legacy rust application - a safe http interface for imagemagick. We are migrating it to Kubernetes. It handles image processing for our other services - enabling clients to upload images and get them processed and cached on the backend. The migration went smoothly
They explained that one of the emails they sent to a customer was missing a period (.) in the email body. What was more confusing is it only happened to this specific customer, when the same email was sent to a different customer the period was not missing. Recently during my 1 on 1 with my manager we talked about a current project that one of our other teams are working on. This sparked a memory
Gameboy Doctor: debug and fix your gameboy emulator | Robert Heaton
Are you building a Gameboy emulator? Are you stuck? Are you failing Blargg’s test ROMs and can’t work out why? Gameboy Doctor can help! (GitHub link) What is Gameboy Doctor? Gameboy Doctor is a tool that compares your emulator to an example emulator that passes Blargg’s test ROMs. It finds the exact tick where your emulator’s state diverges from the example, helping you isolate and fix your bugs.
GitHub - Code-Hex/dd: Data Dumper library dumps any data as valid syntax in Go
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Apple recently made a booboo, unlike any other booboo in the history of programming. Even though Apple’s bug is unprecedented, here’s a brief overview of some predecessor bugs. XBack in 2006, the X server checked to make sure the user was root, but forgot to actually call the function. --- hw/xfree86/common/xf86Init.c +++ hw/xfree86/common/xf86Init.c @@ -1677,7 +1677,7 @@ } if (!strcmp(argv[i], "-
GitHub - coekie/flowtracker: Track data flowing through Java programs
Track data flowing through Java programs, gain new understanding at a glimpse. FlowTracker is a Java agent that tracks how a program reads, manipulates, and writes data. By watching a program run, it can show what file and network I/O happened, but more importantly connecting its inputs and outputs to show where its output came from. This helps you understand what any Java program's output means a
How I Found A 55 Year Old Bug In The First Lunar Lander Game
Update: This kinda blew up! Featured in Hacker News, Ars Technica and PC Gamer, among others. Just months after Neil Armstrong’s historic moonwalk, Jim Storer, a Lexington High School student in Massachusetts, wrote the first Lunar Landing game. By 1973, it had become “by far and away the single most popular computer game.” A simple text game, you pilot a moon lander, aiming for a gentle touch dow
Yesterday I asked on Twitter about what problems people are solving with strace and as usual everyone really delivered! I got 200 answers and then spent a bunch of time manually categorizing them into 9 categories of problems. All of the problems are about either finding files a program depends on, figuring out why a program is stuck or slow, or finding out why a program is failing. These generall
research!rsc: Hash-Based Bisect Debugging in Compilers and Runtimes
Setting the Stage Does this sound familar? You make a change to a library to optimize its performance or clean up technical debt or fix a bug, only to get a bug report: some very large, incomprehensibly opaque test is now failing. Or you add a new compiler optimization with a similar result. Now you have a major debugging job in an unfamiliar code base. What if I told you that a magic wand exists
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The Debugger is Here - Zed Blog
New zine: The Pocket Guide to Debugging
Goのライブラリのバグを見つけてから直すまで layerx.go#0
Debugging a rustc segfault on illumos :: sunshowers
Phantom Menace: memory leak that wasn't there
The curious case of the missing period
a brief history of one line fixes
What problems do people solve with strace?
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