freeze - OpenSSL hangs while creating an CSR (MSys2) -

i'm trying create request following openssl v1.0.2 command under msys2 windows 7 environment: $ openssl req -out ios.csr -new -newkey rsa:2048 -keyout ios-private.key

i'm getting following output , process freezes after that:

loading 'screen' random state - done generating 2048 bit rsa private key ................................................................................    .....................................................................+++ ................................................................................    ..............................................+++