Printing to console at the same time as selecting text causes deadlock

[LunarLambda]

Microsoft Windows [Version 10.0.16299.431]

Attempting to print text to the console and selecting text at the same time causes a deadlock.

[miniksa]

What is b? Which API is it calling?

[LunarLambda]

@miniksa basically while (true) puts("hi");

I also tested it with std::cout, and also WriteConsole directly.

[miniksa]

OK. Sometimes they back-end on different functions on our side. I'll whip up a little utility and try this out. Thanks.

[miniksa]

Hmmm, not happening for me on 17686. Let me go stand up a 16299 image and see if it happens.

[miniksa]

Not repro on 17718 (RS5 Insiders Build).
Not repro on 17134.1 (RS4 release).
Not repro on 16299.431 (RS3 release).

Please reactivate if you can provide the actual source code for "b" that makes this repro.

[LunarLambda]

Doesn't repro on my machine anymore (10.0.17134.112)

The code was

#include <stdio.h>

int main()
{
    while (1)
    {
        printf("hi");
    }
}