#8406: Invalid object in isRetainer() or Segfault -----------------------------------+-------------------------------------- Reporter: crockeea | Owner: Type: bug | Status: infoneeded Priority: normal | Milestone: 8.0.1 Component: Runtime System | Version: 7.8.3 Resolution: | Keywords: Operating System: Linux | Architecture: x86_64 (amd64) Type of failure: Runtime crash | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Wiki Page: | -----------------------------------+-------------------------------------- Comment (by thomie): pally: I can not reproduce your problem. Which platform are you on? And how long does it take before your program crashes? Here's what I tried: * I'm using Ubuntu 14.04 Linux, x86-64. * I installed the following packages, after some trial and error: `libfftw3-dev libopenal-dev qtchooser qtbase5-dev qtdeclarative5-dev qtdeclarative5-qtquick2-plugin darcs` * `cabal sandbox init` * `darcs get http://hub.darcs.net/pallly/hdur` * `darcs get http://hub.darcs.net/komadori/HsQML` * `cabal install HsQML/` * `cabal install hdur/` * `.cabal-sandbox/bin/hdur` # Fails with some module not found error (frustrating! please fix, cabal install should have caught that) * I then installed `qml-module-qtquick2` from 15.04 (vivid). This also upgrade most other qt related packages * `.cabal-sandbox/bin/hdur` * I see a grey window with the subtext "foobar". When I press 'o', a black squiggly line appears on a white background. * No crash. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/8406#comment:16 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler