Serial Port transmit hang after sending break signal

[sundarapandian]

I have created COM1, COM2 serial ports and attached them to the host device /dev/ttyS0 and /dev/ttyS1, respectively. When I open any terminal program (teraterm, hyperterminal etc.) I am able to use the serial ports to send/receive data from and to the device connected to the physical port. But if I send a BREAK Signal, the transmit functionality won't work after sending the signal.

Steps to reproduce:

1. Create Serial port COM1 and link it with host port say, /dev/ttyS0
2. From Guest OS open terminal emulation program and check if your Tx/Rx works fine
3. From terminal send BREAK (if using TeraTerm use Alt+B to send it)
4. Check if Tx Works now!

Always reproducible.

Host: Linux (Gentoo_x86-64) Guest: Windows XP (SP2 32-bit)

[Frank Mehnert]

Not reproducible here with VBox 3.2.10. Please reopen if necessary.