This is my first bug report so if I'm Doing It Wrong, please let me know.
I looked around to see if this problem was fixed in 2.6.8 - I'll go ahead and upgrade anyway so feel free to ignore this if it has been fixed since that release.
I came into work this morning and discovered that my disk had filled completely. I dug around and saw that SQuirreL had taken the remaining 52 gigs of space via the squirrel-sql.log file. I grabbed the last 1000 lines of the log and it looks like the same set of stack traces repeating over & over.
Attached is a small subset of the repeating stack trace. I've cut it down to 1000 lines and could probably trim it further but don't want to accidentally discard useful data.