pfSense

See http://forum.pfsense.org/index.php/topic,59909.msg322186.html#msg322186

Appears in 2.1, I'm guessing all versions.

Bugs 2867 also exposed a second bug in both the easy and manual installer.
If the default sizes are accepted (or a user enters a manual subpartition layout input that fails due to low size of a needed partition), the installer gets trapped in an inescapable loop:

- The subpartitions you have chosen were not correctly created and the primary partition may now be in an inconsistent state... <OPTIONS: OK>
(Presumably instead of just "OK", the installer should ask if you want to CONTINUE anyway, EDIT the subpartition sizes, or CANCEL the entire action)
Click OK.

- WARNING: the / subpartition should be at least 244M in size... Proceed anyway? <OPTIONS: OK, CANCEL>
Click <CANCEL>. It should cancel but appears to try and proceed anyway, and fails and loops:

- Execution of the command ... install.disklabel failed with a return code of 1. <OPTIONS: VIEW LOG, MAIL LOG, RETRY, CANCEL, SKIP>
Click <CANCEL>. It should cancel but it loops as above:

- The subpartitions you have chosen were not correctly created and the primary partition may now be in an inconsistent state... <OPTIONS: OK>
Rinse & repeat