| commit | a00916dd39a53f9d7c0617efa74ac2aaf6bc4716 | [log] [tgz] |
|---|---|---|
| author | Muir Manders <muir@mnd.rs> | Wed Jul 03 16:46:23 2019 +0000 |
| committer | Rebecca Stambler <rstambler@golang.org> | Wed Jul 03 17:22:52 2019 +0000 |
| tree | afa737696b86a0c5aa0dd5034b5139a308c1d413 | |
| parent | 1c78e262338f760ac624f8212acaad9a23c3525b [diff] |
internal/lsp: fix deadlocks loading lots of files at once The first deadlock involved differing mutex acquisition order in two code paths: 1. loadParseTypecheck() holds the "mcache" mutex then eventually acquires the "handleMu" file mutex. 2. (*goFile).invalidateContent() acquires the "handleMu" mutex first and then the "mcache" mutex. Fix by changing the acquisition order in invalidateContent(). The second deadlock involved the file watcher. The two code paths involved were: 1. (*goFile).GetPackages() holds the view mutex and eventually calls (*WatchMap).Watch, which acquires the watcher mutex. 2. (*session).openOverlay acquires the watcher mutex as it triggers a file's callbacks, and then the callback "(*goFile).invalidateContent" acquires the view mutex. Fix by not holding the watcher mutex as we invoke the callbacks. Fixes golang/go#32910 Change-Id: I9d060e0d80fd86a317a1d6c7aaa736a8ce10bd07 GitHub-Last-Rev: 04944fa0249c0e6f1022a415787e23abce21bc2e GitHub-Pull-Request: golang/tools#129 Reviewed-on: https://go-review.googlesource.com/c/tools/+/184880 Reviewed-by: Rebecca Stambler <rstambler@golang.org> Run-TryBot: Rebecca Stambler <rstambler@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org>
This subrepository holds the source for various packages and tools that support the Go programming language.
Some of the tools, godoc and vet for example, are included in binary Go distributions.
Others, including the Go guru and the test coverage tool, can be fetched with go get.
Packages include a type-checker for Go and an implementation of the Static Single Assignment form (SSA) representation for Go programs.
The easiest way to install is to run go get -u golang.org/x/tools/.... You can also manually git clone the repository to $GOPATH/src/golang.org/x/tools.
This repository uses Gerrit for code changes. To learn how to submit changes to this repository, see https://golang.org/doc/contribute.html.
The main issue tracker for the tools repository is located at https://github.com/golang/go/issues. Prefix your issue with “x/tools/(your subdir):” in the subject line, so it is easy to find.