﻿id,summary,reporter,owner,description,type,status,component,version,resolution,keywords,cc,guest,host
18668,Problem with sharing serial port after upgrade from 5.2.28 to 6.0.X,stagadet,,"When I try to use a shared COM port (host device) on a guest running DOS 6.22 (using a legacy software for PLCs), on VirtualBox 6.0.8 (and also 6.0.6) I get errors like:
Serial#0: Failed to change parameters to 2400,NONE,5,1 -> VERR_INVALID_PARAMETER
and the software cannot communicate.

Everything works fine if I use VirtualBox 5.2.28 instead, with the same virtual machine.

The full log is attached.",defect,new,uart,VirtualBox 6.0.8,,Serial,,other,Windows
