f51c55bfc3
The runtime was adjusting netpollWaiters before the waiting goroutines were marked as ready. This could cause the scheduler to report a deadlock because there were no goroutines ready to run. Keeping netpollWaiters non-zero ensures that at least one goroutine will call netpoll(-1) from findRunnable. This does mean that if a program has network activity for a while and then never has it again, and also has no timers, then we can leave an M stranded in a call to netpoll from which it will never return. At least this won't be a common case. And it's not new; this has been a potential problem for some time. Fixes #61454 Change-Id: I17c7f891c2bb1262fda12c6929664e64686463c8 Reviewed-on: https://go-review.googlesource.com/c/go/+/511455 TryBot-Result: Gopher Robot <gobot@golang.org> Run-TryBot: Ian Lance Taylor <iant@golang.org> Reviewed-by: Michael Knyszek <mknyszek@google.com> Auto-Submit: Ian Lance Taylor <iant@golang.org> Reviewed-by: Heschi Kreinick <heschi@google.com> |
||
|---|---|---|
| .github | ||
| api | ||
| doc | ||
| lib/time | ||
| misc | ||
| src | ||
| test | ||
| .gitattributes | ||
| .gitignore | ||
| codereview.cfg | ||
| CONTRIBUTING.md | ||
| go.env | ||
| LICENSE | ||
| PATENTS | ||
| README.md | ||
| SECURITY.md | ||
The Go Programming Language
Go is an open source programming language that makes it easy to build simple, reliable, and efficient software.
Gopher image by Renee French, licensed under Creative Commons 4.0 Attributions license.
Our canonical Git repository is located at https://go.googlesource.com/go. There is a mirror of the repository at https://github.com/golang/go.
Unless otherwise noted, the Go source files are distributed under the BSD-style license found in the LICENSE file.
Download and Install
Binary Distributions
Official binary distributions are available at https://go.dev/dl/.
After downloading a binary release, visit https://go.dev/doc/install for installation instructions.
Install From Source
If a binary distribution is not available for your combination of operating system and architecture, visit https://go.dev/doc/install/source for source installation instructions.
Contributing
Go is the work of thousands of contributors. We appreciate your help!
To contribute, please read the contribution guidelines at https://go.dev/doc/contribute.
Note that the Go project uses the issue tracker for bug reports and proposals only. See https://go.dev/wiki/Questions for a list of places to ask questions about the Go language.