VBoxManager gets into a bad state

[spongman]

simple repro on windows, foo.bat:

set VBOX="C:\Program Files\Oracle\VirtualBox\VBoxManage.exe"

:loop %VBOX% controlvm "%1" poweroff %VBOX% snapshot "%1" restorecurrent %VBOX% startvm "%1"

goto loop

this results in a bunch off issues, including:

VBoxManage.exe: error: The machine 'box' is already locked by a session (or being locked or unlocked) VBoxManage.exe: error: Details: code VBOX_E_INVALID_OBJECT_STATE (0x80bb0007), component MachineWrap, interface IMachine, callee IUnknown VBoxManage.exe: error: Context: "LaunchVMProcess(a->session, sessionType.raw(), Bstr(strEnv).raw(), progress.asOutParam())" at line 600 of file VBoxManageMisc.cpp

VBoxManage.exe: error: Invalid machine state: PoweredOff (must be Running, Paused or Stuck) VBoxManage.exe: error: Details: code VBOX_E_INVALID_VM_STATE (0x80bb0002), component ConsoleWrap, interface IConsole, callee IUnknown VBoxManage.exe: error: Context: "PowerDown(progress.asOutParam())" at line 578 of file VBoxManageControlVM.cpp

and eventually it dies:

Progress state: E_ACCESSDENIED VBoxManage.exe: error: Snapshot operation failed VBoxManage.exe: error: The object is not ready VBoxManage.exe: error: Details: code E_ACCESSDENIED (0x80070005), component SessionMachine, interface IMachine VBoxManage.exe: error: Context: "enum RTEXITCODE cdecl handleSnapshot(struct HandlerArg *)" at line 539 of file VBoxManageSnapshot.cpp VBoxManage.exe: error: Code E_FAIL (0x80004005) - Unspecified error (extended info not available) VBoxManage.exe: error: Context: "LaunchVMProcess(a->session, sessionType.raw(), Bstr(strEnv).raw(), progress.asOutParam())" at line 600 of file VBoxManageMisc.cpp

at this point a full restart of all VBox processes is required.

[spongman]

((ugh. why did it wrap the text? have you considered github?))

set VBOX="C:\Program Files\Oracle\VirtualBox\VBoxManage.exe"

:loop
%VBOX% controlvm "%1" poweroff
%VBOX% snapshot "%1" restorecurrent
%VBOX% startvm "%1"

goto loop

[Socratis]

Replying to spongman:

ugh. why did it wrap the text?

Because you didn't tell it not to. Did you notice the "Preview" button next to the "Submit" one?

have you considered github?

I don't believe that this has anything to do with the ticket, or the formatting of the ticket, right? Am I missing something?

As far as the actual ticket, have you considered a "sleep" in between the steps? They *do* take a finite amount of time to execute, you'll need to account for it.

Maybe with another inner loop that checks the state of the VM? That's if you don't want to put a specific amount of sleep time...

[soutsos]

I have the same issue with a Linux host (ubuntu 18.04) and Windows 7 guests. Error caused when using virtualbox with cuckoo sandbox