Systems · Shells Angels

Apr 28, 20268 min read

SIGSEGV at 03:14 — when forbid(unsafe_code) doesn't save you
Heap corruption that didn't reproduce locally, didn't reproduce in staging, and only manifested in production at exactly 03:14 AM. The story of what we tried, what we missed, and the gdb session that finally explained it.
- debugging
- linux
- gdb
- rust
- war-story
Mar 30, 20269 min read

io_uring for people who already know epoll
A practical introduction to io_uring aimed at engineers who have shipped epoll-based event loops in production. What the model is, where it wins, where it doesn't, and the sharp edges nobody mentions in the keynote slides.
- linux
- io_uring
- epoll
- performance
- syscalls
- c