QProcess causes "R6016 - not enough space for thread data"

Question

Launching ipconfig using QProcess causes a crash with an error dialog

Runtime error!

c:\Windows\SysWOW64\ipconfig.exe

R6016

• not enough space for thread data

on some machines (it is not everywhere that the problem occurs), see image.

Am I incorrectly using QProcess?

I tested in:

• Windows 7 64ibt
• Windows 8/10

Using:

• QT5.8.0
• Mingw 5.3 32bit

Minimal code:

#include <QApplication>
#include <QWidget>
#include <QTimer>
#include <QProcess>
#include <QRegExp>
#include <QDebug>

QProcess *checkGateway;

void detectGateway() {
    //Start ipconfig
    QProcess* proc = new QProcess();
    QObject::connect(proc, static_cast<void (QProcess::*)(int)>(&QProcess::finished), [proc](int exitStatus) {
        Q_UNUSED(exitStatus);

        /* parse */

        int testAfter = 1000; //1 sec

        QRegExp rx("gateway[^\\r\\n]+(\\d{1,3}\\.\\d{1,3}\\.\\d{1,3}\\.\\d{1,3})");
        rx.setCaseSensitivity(Qt::CaseInsensitive);

        const QString getResp = proc->readAll();

        if (rx.indexIn(getResp) > -1) {
            qDebug() << "Gateway:" << rx.cap(1);
            testAfter = 5000; //5 sec
        } else {
            qDebug() << "Not found";
        }

        QTimer::singleShot(testAfter, [](){
            detectGateway();
        });

        /* parse */

    });
    proc->start("ipconfig");
}

int main(int argc, char *argv[])
{
    QApplication a(argc, argv);

    QWidget w;

    detectGateway();

    w.show();

    return a.exec();
}