Michael Sloan
9bdfd1e98a
For me this is a panic that started occurring today in my use of Zed.
The repro is to type `ctrl-x` to start a pending key sequence and then
close the collab side panel with the mouse. The issue is that
dispatching the action based on pending keystrokes uses the same
`DispatchNodeId` as when the 1 second timer was started.
`DispatchNodeId` is not stable across frames. This also means that the
wrong `DispatchNodeId` can be used in the non-panicing case, potentially
causing the action to not occur.
The mystery here is why did this only start happening now in my use of
Zed, and why isn't it showing up in the panics dashboard / issue
reports.
Panic looks like
```
{
"thread": "main",
"payload": "index out of bounds: the len is 467 but the index is 1861",
"location_data": {
"file": "crates/gpui/src/key_dispatch.rs",
"line": 519
},
"backtrace": [
"zed::reliability::init_panic_hook::{{closure}}::he1d8257b19b16eec+155265758",
"std::panicking::rust_panic_with_hook::h33b18b24045abff4+128544307",
"std::panicking::begin_panic_handler::{{closure}}::hf8313cc2fd0126bc+128543530",
"std::sys::backtrace::__rust_end_short_backtrace::h57fe07c8aea5c98a+128537145",
"__rustc[95feac21a9532783]::rust_begin_unwind+128542669",
"core::panicking::panic_fmt::hd54fb667be51beea+9456688",
"core::panicking::panic_bounds_check::h1a9bf3d94de0fc80+9457170",
"gpui::key_dispatch::DispatchTree::dispatch_path::hce77d277881569bf+73992023",
"gpui::app::App::spawn::{{closure}}::hb1e79bbbdead3012+73687056",
"async_task::raw::RawTask<F,T,S,M>::run::hd13f66f99bb24bbd+70694231",
"<gpui::platform::linux::x11::client::X11Client as gpui::platform::linux::platform::LinuxClient>::run::h5a92ddaaf9a06dd1+74465138",
"gpui::platform::linux::platform::<impl gpui::platform::Platform for P>::run::hd19ac52b2d94268e+74064525",
"gpui::app::Application::run::hee83110c717a5af0+151862692",
"zed::main::hca7e2265584c4139+153307630",
"std::sys::backtrace::__rust_begin_short_backtrace::h2e04f4034c2d82c5+153146899",
"std::rt::lang_start::{{closure}}::h91cf1ca0eeae23ae+154454121",
"std::rt::lang_start_internal::h418648f91f5be3a1+128467809",
"main+153326748",
"__libc_start_call_main+25056432783818",
"__libc_start_main_impl+25056432784011",
"_start+12389486"
],
"app_version": "0.190.6",
"app_commit_sha": "9a2dcbbe244407fed51d61f38e4a4a59ec1cccc6",
"release_channel": "stable",
"target": "x86_64-unknown-linux-gnu",
"os_name": "Linux X11",
"os_version": "ubuntu 24.04",
"architecture": "x86_64",
"panicked_on": 1750185799233,
"system_id": "abae7201-61fb-442b-922b-202071ae81c0",
"installation_id": "69a0fb9a-11a2-4065-ad8c-b281e68525ad",
"session_id": "bc5b5f2f-e4c3-44a8-948e-c0550a2e2ef2"
}
```
Release Notes:
- Fixed a rare panic / potential incorrect action dispatch when a
pending keysequence is applied after the 1 second timer elapsing.
Zed
Welcome to Zed, a high-performance, multiplayer code editor from the creators of Atom and Tree-sitter.
Installation
On macOS and Linux you can download Zed directly or install Zed via your local package manager.
Other platforms are not yet available:
- Windows (tracking issue)
- Web (tracking issue)
Developing Zed
- Building Zed for macOS
- Building Zed for Linux
- Building Zed for Windows
- Running Collaboration Locally
Contributing
See CONTRIBUTING.md for ways you can contribute to Zed.
Also... we're hiring! Check out our jobs page for open roles.
Licensing
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.