We have a bunch of different applications running on a web server and some of them started falling over; Quickly checking disk space we realised the tmp folder on a seperate partition had become full - Looking through there's lots and lots of CGI*****-* files, where '' is a number and the last '' are 2 or 3.
I realise files in the temp directory aren't gaurenteed any permanent life so I could just delete them, but I wanted to check first - before I cause even more trouble :-p
I suspect they're related to Ruby on Rails and file uploads.
Cheers, Chris