KeyUp event gets lost in Windows 7 guest.

[amosb]

My host configurations are as follows:

• Archlinux OS x64
  VirtualBox 5.0.14 with guest addons and Oracle extension installed
  i3wm using xdotool to achieve these key remappings:

  Code: Select all

      1) Ctrl+L ====> Return
      2) Ctrl+H ====> BackSpace

  method: bindsym control+l exec "xdotool getwindowfocus key -clearmodifiers --window %@ Return"
  Can also use xbindkeys/sxkbd to reproduce

These remappings work smoothly on host machine.

My guest configurations:

• Windows 7 Ultimate i386
  Auto Capture Keyboard disabled
  Sticky key disabled
  Using VirtualBox GUI

Reproduce:
Press 'Ctrl-h' and release 'Ctrl' first, 'Ctrl' key gets stuck in guest machine. Keylook.exe shows 'Ctrl' Key Up event is lost.



Update 1
I've successfully reproduced this issue in Ubuntu 15.10 Guest.