#4505: Segmentation fault on long input (list of pairs) -------------------------------------+------------------------------------- Reporter: cathper | Owner: (none) Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 7.0.1 Resolution: | Keywords: Segmentation | fault, segfault, long input Operating System: Unknown/Multiple | Architecture: x86_64 Type of failure: GHC rejects | (amd64) valid program | Test Case: Blocked By: 4258 | Blocking: Related Tickets: | Differential Rev(s): Phab:D1180 Wiki Page: | -------------------------------------+------------------------------------- Comment (by michaelpj): I ran into this recently when attempting to embed some static data into a program from a Core plugin. Having found http://hackage.haskell.org/package/ghc-8.4.3/docs/MkCore.html#v:mkWordExpr I thought I could sneak a bytestring in as a list of word expressions - which triggered this issue when the list got long enough. Again, this does only trigger when compiling without -O, but people do occasionally do that. I worked around it by essentially mimicing what `fileEmbed` does to make a bytestring literal in TH (http://hackage.haskell.org/package/file- embed-0.0.11/docs/src/Data.FileEmbed.html#bsToExp), but this is somewhat clumsy as you have to rely on having the `ByteString` names around. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/4505#comment:53 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler