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debugging
44 postsGo 1.25 Ships Flight Recorder for Runtime Trace Diagnostics
Go 1.25's flight recorder buffers recent execution trace data in memory, letting engineers snapshot production latency issues on demand.
A 24-Year-Old Linux Kernel TCP Bug Found via Stuck rsync Transfers
How Skroutz engineers traced mysterious rsync hangs to a 24-year-old TCP flow-control bug buried in the Linux kernel.
When Green Tests Lie: Ten Patterns Behind False Positives
Ten real examples from a single audit day show how passing tests and checks can mask broken software, and how to actually test the checkers themselves.
CommitBrief — AI code reviews, right in your terminal
A provider-agnostic, local-first CLI that reviews your staged changes, a historic range, or a whole GitHub pull request. Zero telemetry, no server. Free and open source.
commitbrief.comCauseScope traces React UI bugs back to the API call that caused them
CauseScope is an open-source Vite plugin that traces a disabled button or wrong React render back to the exact API response that caused it.
Ctxdiff Brings Git-Style Diffing to LLM Agent Context Windows
Ctxdiff is a local-first, open-source tool that applies git-style diffing to LLM agent context windows, turn by turn.
Tracking Down a Silent Memory Leak in a Rust macOS NVR
How a Rust macOS NVR's hidden memory leak was isolated using custom malloc zones and traced to a wgpu error path.
Why Debug Info Makes Rust-to-WebAssembly Builds 40x Slower
LLVM's Register Stackify pass mishandles debug records, making Rust-to-WebAssembly builds up to 40x slower; a fix targets the root cause.
A Test-Matrix Approach to Debugging JavaScript Regular Expressions
A four-axis test-matrix method for debugging JavaScript regex bugs involving Unicode, flags, capture groups, and RegExp state.
Claude Code Left 10 Orphaned Busy-Loops Burning a Laptop's CPU
A Claude Code session left 10 orphaned busy-loops running for two days, pegging CPU. Here's how it was diagnosed and fixed.
How a Second Middleware Silently Broke Inngest's TypeScript Types
A deep dive into why stacking two Inngest middlewares silently collapsed step.run's TypeScript type to {} — and the actual root-cause fix.