fdf9b3c994
On Windows, externalthreadhandler currently sets the assumed stack size for the profiler thread and the ctrlhandler threads to 8KB. The actual stack size is determined by the SizeOfStackReserve field in the binary set by the linker, which is currently at least 64KB (and typically 128KB). It turns out the profiler thread is running within a few words of the 8KB-(stack guard) bound set by externalthreadhandler. If it overflows this bound, morestack crashes unceremoniously with an access violation, which we then fail to handle, causing the whole process to exit without explanation. To avoid this problem and give us some breathing room, increase the assumed stack size in externalthreadhandler to 32KB (there's some unknown amount of stack already in use, so it's not safe to increase this all the way to the reserve size). We also document the relationships between externalthreadhandler and SizeOfStackReserve to make this more obvious in the future. Change-Id: I2f9f9c0892076d78e09827022ff0f2bedd9680a9 Reviewed-on: https://go-review.googlesource.com/18304 Run-TryBot: Austin Clements <austin@google.com> Reviewed-by: Alex Brainman <alex.brainman@gmail.com> Reviewed-by: Minux Ma <minux@golang.org> |
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The Go Programming Language
Go is an open source programming language that makes it easy to build simple, reliable, and efficient software.
For documentation about how to install and use Go, visit https://golang.org/ or load doc/install-source.html in your web browser.
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.
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To contribute, please read the contribution guidelines: https://golang.org/doc/contribute.html
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Unless otherwise noted, the Go source files are distributed under the BSD-style license found in the LICENSE file.
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Binary Distribution Notes
If you have just untarred a binary Go distribution, you need to set the environment variable $GOROOT to the full path of the go directory (the one containing this file). You can omit the variable if you unpack it into /usr/local/go, or if you rebuild from sources by running all.bash (see doc/install-source.html). You should also add the Go binary directory $GOROOT/bin to your shell's path.
For example, if you extracted the tar file into $HOME/go, you might put the following in your .profile:
export GOROOT=$HOME/go
export PATH=$PATH:$GOROOT/bin
See https://golang.org/doc/install or doc/install.html for more details.