07ede7a543
In CL 421441, we changed syscall to allow concurrent calls to forkExec. On platforms that support the pipe2 syscall that is the right behavior, because pipe2 atomically opens the pipe with CLOEXEC already set. However, on platforms that do not support pipe2 (currently aix and darwin), syscall.forkExecPipe is not atomic, and the pipes do not initially have CLOEXEC set. If two calls to forkExec proceed concurrently, a pipe intended for one child process can be accidentally inherited by the other. If the process is long-lived, the pipe can be held open unexpectedly and prevent the parent process from reaching EOF reading the child's status from the pipe. Fixes #61080. Updates #23558. Updates #54162. Change-Id: I83edcc80674ff267a39d06260c5697c654ff5a4b Reviewed-on: https://go-review.googlesource.com/c/go/+/507355 TryBot-Result: Gopher Robot <gobot@golang.org> Reviewed-by: Ian Lance Taylor <iant@google.com> Run-TryBot: Bryan Mills <bcmills@google.com> Auto-Submit: Bryan Mills <bcmills@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.