id,summary,reporter,owner,description,type,status,priority,milestone,component,version,resolution,keywords,cc,os,architecture,failure,difficulty,testcase,blockedby,blocking,related
3578,internal error: evacuate(static): strange closure type 42,nccb,igloo,"I have a concurrent program (using CHP, which sits on top of STM+forkIO), that is able to produce this error on GHC 6.12.1-rc1 (which doesn't appear on your version drop-down):

chp-boids: internal error: evacuate(static): strange closure type 42
    (GHC version 6.12.0.20091010 for i386_unknown_linux)
    Please report this as a GHC bug:  http://www.haskell.org/ghc/reportabug
Aborted

It produces it much sooner with +RTS -N2 than +RTS -N1, but both settings can produce the error.  The output doesn't look like it will be very useful to you -- what can I run to give a better output?
",merge,closed,high,6.12.1,Runtime System,6.13,fixed,,,Linux,x86,,Unknown,,,,