I create an QThread using moveToThread(), where I use a QTimer to pull stuff from network instantly.

In construct I call
Qt Code: 
  1. _http = new HttpAdapter(this);
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and in periodically function run
Qt Code: 
  1. _http->Download();
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In httpAdapter header
Qt Code: 
  1. QNetworkReply* _reply;
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Qt Code: 
  1. void HttpAdapter::Download() {
  2.  
  3.     QString url;
  4.     url += Server::get()->GetBaseUrl();
  5.     url += "get.xml";
  6.  
  7.     QNetworkAccessManager * http = new QNetworkAccessManager;
  8.  
  9.     QNetworkRequest request;
  10.     request.setHeader(QNetworkRequest::ContentLengthHeader, "0");
  11.     request.setUrl(QUrl::fromUserInput(url));
  12.  
  13.     _reply = http->get(request);
  14.  
  15.     connect(_reply,SIGNAL(finished()),this, SLOT(Finished()));
  16.     connect(_reply,SIGNAL(readyRead()),this, SLOT(ReadyData()));
  17.     connect(_reply,SIGNAL(error(QNetworkReply::NetworkError)),this, SLOT(foldersError(QNetworkReply::NetworkError)));
  18.     connect(_reply,SIGNAL(sslErrors ( const QList<QSslError> & )),this, SLOT(SslErrors( const QList<QSslError> &)));
  19. }
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The on finish...

Qt Code: 
  1. void HttpAdapter::Finished() {
  2.     DEBUGME_MSG("finished");
  3.  
  4.     int httpCode = _reply->attribute( QNetworkRequest::HttpStatusCodeAttribute ).toInt();
  5.     if (httpCode != 200) {
  6.         INFO_DEBUGME("HTTP CODE " + QString::number(httpCode));
  7.         return;
  8.     }
  9.  
  10.     if (!_reply->isFinished()) {
  11.         return;
  12.     }
  13.  
  14.     if (!_reply->isReadable()) {
  15.         return;
  16.     }
  17.  
  18.     _data = _reply->readAll();
  19.     _reply->deleteLater();
  20.  
  21.     if (_data.isEmpty()) {
  22.         INFO_DEBUGME("DATA EMPTY");  
  23.         return;
  24.     }
  25.  
  26.     //success
  27. }
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And THE CRASH IS ON
Qt Code: 
  1. _data = _reply->readAll();
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The crash happen randomly, I would say in 5% of the calls, Any idea why ??