"All loop devices on the host are in use."
When trying to mount a virtual disk into the host OS (openSUSE 13.1) using VMware Workstation 10 I got the "All loop devices on the host are in use." error.
To prevent this error I did this:
Add a line containing
options loop max_loop=256
to this file
/etc/modprobe.d/vmware-fuse.conf
# cat /etc/modprobe.d/vmware-fuse.conf
# Added by VMware.
alias char-major-10-229 fuse
options loop max_loop=256
# modprobe loop
This solved my issue.