virtualbox.org

I'm hoping someone can point me in the right direction on this.

Uploading a sketch to an arduino from the arduino IDE in Leap 42.1 guest on Windows 7 host stops loading part way through.
Uploading the sketch from the Windows host using the Arduino IDE works.

VirtualBox
Windows 7 host
OpenSUSE Leap 42.1 guest
Arduino IDE 1.6.5

USB FTDI
lsusb reports

Bus 002 Device 003: ID 0403:6001 Future Technology Devices International,
Ltd FT232 USB-Serial (UART) IC
idVendor 0x0403 Future Technology Devices International, Ltd
idProduct 0x6001 FT232 USB-Serial (UART) IC

Set Devices->Serial port number to com4 and Path/Address com4:
I chose com4 since that's what the arduino IDE on the windows host reported.

Uploading a sketch begins okay, proceeds for a random time and stops.
/var/log/messages reports the following at the time of the stop.

ftdi_sio ttyUSB0: failed to get modem status: -110
ftdi_sio ttyUSB0: usb_serial_generic_write_bulk_callback - urb stopped: -32

Any help or pointers will be appreciated.

Thanks.