mokus0/junkbox — comment on commit e21a797ebb250d8c59531ab3d85dbe5d50b2c5d2
File: Haskell/Experiments/Isolate.hs line 37
By mokus0:

Upon deeper inspection, this thrashing only occurs under GHC 7.4.1-rc1. In 7.2.2, though, the routing process has a very obvious space leak.