Ran into a weird issue when generating a cpinfo file yesterday, it was failing due to limited amount of space in "/" root directory, although we were trying to generate it and store the output in /var/log/.
I'm assuming but couldn't find anything in the documentation that during the cpinfo file generation /tmp folder is used in the root directory and only the output gets stored in the specified output folder.
I was able to sort out the issue by clearing out some files in root, but was curious for future reference if it is possible to change the temp directory cpinfo uses for it's generation?