Deleting the ~/.racket directory solves the problem. Restoring that directory brings the problem back. Maybe Racket 5.3 somehow gets disgusted by Racket 5.2 leftovers?
On Thu, 2012-08-16 at 10:52 +0700, Erik Dominikus wrote: > On my machine, DrRacket 5.3 [3m] (built from source package) looks like > waiting for something for about 5-10 seconds when closing a tab that has > a file open in it. It did not happen on Racket 5.2 [3m]. > > > My machine's uname -a: > > Linux kire 2.6.32-41-generic #91-Ubuntu SMP Wed Jun 13 11:43:55 UTC 2012 > x86_64 GNU/Linux > > > (FYI, if a reply is needed, expect it to be late as I'll be on holiday > until Aug 27.) > ____________________ Racket Users list: http://lists.racket-lang.org/users

