# Objective Fix a Windows CI flake in `extension_host extension_store_test::test_extension_store_with_test_extension`, which panicked in GPUI's leak detector with three leaked `LspStore` handles ([example run](https://github.com/zed-industries/zed/actions/runs/28871529605/job/85635418351)). ## Solution `LspAccess::ViaLspStore` held a strong `Entity<LspStore>`, cloned into three `ExtensionHostProxy` registrations by `language_extension::init`. The proxy sits inside an `Arc` cycle (proxy → `LanguageServerRegistryProxy` → `LanguageRegistry` → `ExtensionLspAdapter` → `WasmExtension` → `WasmHost` → proxy), so whenever an extension LSP adapter was registered at app-drop time, the cycle pinned the `LspStore` entity after its owning `Project` dropped. The flake was purely timing: extension reload toggles the adapter registration, and an unclean LSP pipe shutdown on Windows shifted teardown into the pinned window. `ViaLspStore` now holds a `WeakEntity<LspStore>`, upgraded at its sole use site (`remove_language_server`), skipping the stop task when the store is gone — matching the existing `ViaWorkspaces` semantics. A dead store is the expected terminal state after the owning project drops, so no error is logged or propagated. `Project`/`HeadlessProject` remain the sole long-term owners of `LspStore`, which is already the convention everywhere else (e.g. `json_schema_store`, the `lsp_store` message handlers). ## Testing - Ran `cargo nextest run -p extension_host extension_store_test::test_extension_store_with_test_extension` locally: passes. - The flake is timing-dependent (reproduced on Windows CI), so a local pass doesn't prove absence; the fix removes the only strong non-owner handle, which the leak detector reported. ## Self-Review Checklist: - [x] I've reviewed my own diff for quality, security, and reliability - [x] Unsafe blocks (if any) have justifying comments - [x] The content adheres to Zed's UI standards ([UX/UI](https://github.com/zed-industries/zed/blob/main/CONTRIBUTING.md#uiux-checklist) and [icon](https://github.com/zed-industries/zed/blob/main/crates/icons/README.md) guidelines) - [x] Tests cover the new/changed behavior - [x] Performance impact has been considered and is acceptable --- Release Notes: - N/A --------- Co-authored-by: zed-zippy[bot] <234243425+zed-zippy[bot]@users.noreply.github.com>
Zed
Welcome to Zed, a high-performance, multiplayer code editor from the creators of Atom and Tree-sitter.
Installation
On macOS, Linux, and Windows you can download Zed directly or install Zed via your local package manager (macOS/Linux/Windows).
Other platforms are not yet available:
- Web (tracking discussion)
Developing Zed
Contributing
See CONTRIBUTING.md for ways you can contribute to Zed.
Also... we're hiring! Check out our jobs page for open roles.
Licensing
Zed source code is licensed primarily under GPL-3.0-or-later, with Apache-2.0 components where marked.
License information for third party dependencies must be correctly provided for CI to pass.
We use cargo-about to automatically comply with open source licenses. If CI is failing, check the following:
- Is it showing a
no license specifiederror for a crate you've created? If so, addpublish = falseunder[package]in your crate's Cargo.toml. - Is the error
failed to satisfy license requirementsfor a dependency? If so, first determine what license the project has and whether this system is sufficient to comply with this license's requirements. If you're unsure, ask a lawyer. Once you've verified that this system is acceptable add the license's SPDX identifier to theacceptedarray inscript/licenses/zed-licenses.toml. - Is
cargo-aboutunable to find the license for a dependency? If so, add a clarification field at the end ofscript/licenses/zed-licenses.toml, as specified in the cargo-about book.
Sponsorship
Zed is developed by Zed Industries, Inc., a for-profit company.
If you’d like to financially support the project, you can do so via GitHub Sponsors. Sponsorships go directly to Zed Industries and are used as general company revenue. There are no perks or entitlements associated with sponsorship.