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To the FreeSurfer supporters,

Thank you for your time and efforts to help with this issue. I have installed Freesurfer through VirtualBox on Windows system with the following specifications: Processor: Intel(R) Xeon(R) W-2125 CPU @ 4.00 GHz 4.01 GHz Installed RAM: 32.0 GB (31.7 GB usable) System type: 64-bit operating system, x64-based processor

The VM is accessing recon-all data stored in an external hard drive (named Local Media E:, space 342 GB free out of 931 GB). The data here is shared through mounting the external drive plugged into the Windows machine in the Ubuntu VM.

The current task is to use Freeview through the VirtualMachine for control points to fix Intensity Normalization.

I am freely able to access the data successfully run from the recon-all command (see recon-all.log for more information).

For this specific data, I have run the command loaded into freeview: developer@developer-VirtualBox: ~/fs-subjects/sub-BE006-T0$ freeview -v meri/brainmask.mgz mri/T1.mgz -f surf/lh.pial:edgecolor=red suf/rh.pial:edgecolor=red surf/lh.white:edgecolor=yellow surf/rh.white:edgecolor=yellow

This opens up the data into freeview successfully. I have followed the instructions to set up the Control points through *File -> New Point Set, *enter *control.dat*, and select template volume as *brainmask*. When I click *OK,* Freeview immediately shuts down and shows the following error message:

VMware: vmw_ioctl_command error Cannot allocate memory. Aborted (core dumped).

I am unable to find any existing issues other users may also have encountered regarding this. Could you provide me a reason as to why this happens? It would help immensely.

Additionally, do you have any resources that would allow the parallel command to work on a Windows/Linux operating system? Any resources about this would be great.

Thank you and I appreciate your time and efforts.

Sincerely, You Na Lee