id,summary,reporter,owner,description,type,status,component,version,resolution,keywords,cc,guest,host
6246,XP guest freezing for two to three seconds at a time,Dave,,"After installing VirtualBox 3.1.4 I have started to experience freezing of my XP guest for durations of one to two seconds at a time.  The freezing most often occurs when quickly manipulating directories/files in Window's explorer.  It also happens on regular occasion when quickly responding to system dialog boxes.  The problem does not occur when I am working within an application so long as I don't bring up a system dialog box.

Example 1:  If I open ""MY Computer"" and click on the ""My Documents"" link, the system will pause for a two or so seconds and then open the folder.  If I then quickly move my mouse over the back button it will take a couple seconds before the back button changes appearance to indicate that my mouse is over-top the control.  If I click before getting this visual feedback the system will ignore my mouse input.

Example 2:  If I open Wordpad, type some text, and then close the application the system will bring up a dialog box asking me if I want to save changes to the document.  If I quickly attempt to press NO the guest will freeze for a second or two and then the application will exit.  If I allow the dialog box to remain on the screen for a few seconds before I click, the application will exit immediately as desired.

'''This freezing bug is definitely being caused by version VirtualBox 3.1.4.  If I re-install 3.1.2 the problem goes away entirely and the system is very responsive to user input.
'''

I have tried disabling Guest additions, disabling VT-x, disconnecting the Network, etc. None of these changes seem to have any effect on the freezing issue.

FYI: My host is running Fedora 12 64 bit on an Core i7 processor.
The output of uname -r is :2.6.31.12-174.2.19.fc12.x86_64",defect,closed,other,VirtualBox 3.1.4,duplicate,"freezing, hanging, freeze, hang",,Windows,Linux