Segfault in RSAGL with +RTS -G4
marlowsd at gmail.com
Mon Apr 20 09:48:02 EDT 2009
Christopher Lane Hinson wrote:
> 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
> 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
Could you check whether this still happens with 6.10.2, and if so, please
report it via http://hackage.haskell.org/trac/ghc/wiki/ReportABug.
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