guestcontrol execute hangs when run many times in a loop

[coder140]

Hello,

I wrote a C++ program that calls VBoxManage guestcontrol commands in a loop. The problem is that after around 100 iterations of the loop, the call does not return. In addition, I can see in the guest VM that the VBoxService.exe process consumes 100% CPU. Another thing: If I shutdown the guest VM, its state becomes "Powered Off", however the GUI does not allow me to power it on (the Start button is greyed out). I can workaround the last issue by killing the "VirtualBox" process on the host computer. After that the VM state becomes "Aborted", and I can start it. More details: Host: Windows 7 64 bit Guest VM: Windows XP 32 bit with SP2. Guest VM configuration: 2 CPUs, 1024 MB RAM. VirtualBox 4.3.12 and matching VBoxAdditions on the guest VM. My program, which runs on the host machine, executes the following commands:

VBoxManage guestcontrol MachineName execute --username administrator --password "" --verbose --image cmd.exe -- /c c:\Windows\system32\calc.exe Sleep(100) VBoxManage guestcontrol MachineName execute --username administrator --password "" --verbose --wait-exit --wait-stdout --wait-stderr --image taskkill.exe -- /PID ProcessIdOfCmdExe /T /F VBoxManage guestcontrol MachineName session close --all

I Would be very happy if this issue can be resolved quickly.

Thank you!

[aeichner]

Please reopen if still relevant with a recent VirtualBox release.