Why does my Go program crash on Windows?

Recently, many Go developers have encountered some strange crash issues when running their own programs on Windows. Some Go programs work fine on Windows but crash on other users' machines. The source of these problems can be difficult to find, but there are several common causes that may be causing them. In this article, we will discuss why some Go programs crash on Windows and how to avoid these problems.

The first reason is to use cgo.

If you use cgo to access the C library, you need to ensure that the C library is compatible with the Windows SDK when compiling your Go program on Windows. Otherwise, the program may crash with an error message similar to "fault module xxx.dll". To solve this problem, the C code can be recompiled into a Windows SDK-compatible binary using the Pelles C compiler (http://www.smorgasbordet.com/pellesc/).

The second reason is to use CGI/FCGI.

If your Go program is deployed using CGI/FCGI and it crashes on Windows, it may be because a web server such as IIS or Apache has closed the program's standard output. On Windows, CGI programs cannot output to the console and must use standard output. If the web server has closed standard output, the program will not be able to continue execution and will crash. To solve this problem, you can use GCP (https://github.com/platinasystems/go-control-plane) to convert your Go program into an HTTP server, thus avoiding the use of CGI/FCGI.

The third reason is to use goroutine and closure.

On Windows, using goroutines and closures may cause some strange problems. Specifically, if a closure's definition exceeds the lifetime of the embedded function, the program may crash. This problem is especially likely to occur when passing closures through multiple goroutines. To solve this problem, you can use -channel to pass closures to other goroutines.

These are some common reasons that can cause Go programs to crash on Windows. By avoiding cgo, avoiding CGI/FCGI, and handling goroutines and closures carefully, you can ensure that your Go program performs well on Windows and does not crash unexpectedly. If you're still experiencing issues, remember to check your problem report for error messages so you can quickly diagnose the issue.

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