I regret that I don't have a simpler failure case, but I'm just going to
post this and please advise me. I don't see how to get debugging symbols
to work to even look at a core dump.
Usually I get a segfault, but sometimes I get this:
_rsagl_modelview: internal error: evacuate: strange closure type 2053
(GHC version 6.10.1 for i386_unknown_linux)
Please report this as a GHC bug:
http://www.haskell.org/ghc/reportabug
Aborted
This program uses ffi, but in this checkin I've disabled RSAGL's ffi
except the GLUT+OpenGL bindings. So it's OpenGL or ghc.
The key to getting this error is the -G flag. -G4 or -G3 segfaults.
Steps to replicate:
git clone http://www.downstairspeople.org/git/rsagl.git
cd rsagl/
git checkout possible_rts_bug_g4
cabal configure && cabal build
./dist/build/_rsagl_modelview/_rsagl_modelview +RTS -G4 -RTS
<-- just sit and wait, it should display an animation briefly and then
segfault.
Friendly,
--Lane
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