#10279: panic on haskell-src-exts -------------------------------------+------------------------------------- Reporter: throwaway123 | Owner: ezyang Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 7.10.1 Resolution: | Keywords: Operating System: Linux | Architecture: x86_64 Type of failure: Compile-time | (amd64) crash | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Revisions: -------------------------------------+------------------------------------- Comment (by ezyang): OK, it looks like at some point between 7.10 and HEAD the error message got better. But I don't know what the proximal commit was: {{{ [ezyang@hs01 th]$ /home/hs01/ezyang/ghc-quick/inplace/bin/ghc-stage2 --interactive T10279.hs -XTemplateHaskell GHCi, version 7.11.20150417: http://www.haskell.org/ghc/ :? for help [1 of 1] Compiling T10279 ( T10279.hs, interpreted ) T10279.hs:5:10: error: Failed to load interface for ‘A’ no package matching ‘base-4.8.1.0’ was found In the expression: (base-4.8.1.0:A.Foo) In an equation for ‘blah’: blah = (base-4.8.1.0:A.Foo) [ezyang@hs01 th]$ /home/hs01/ezyang/ghc-7.10/inplace/bin/ghc-stage2 --interactive T10279.hs -XTemplateHaskell GHCi, version 7.10.0.20150317: http://www.haskell.org/ghc/ :? for help [1 of 1] Compiling T10279 ( T10279.hs, interpreted ) T10279.hs:5:8:ghc-stage2: panic! (the 'impossible' happened) (GHC version 7.10.0.20150317 for x86_64-unknown-linux): qual_pkg base-4.8.1.0 Please report this as a GHC bug: http://www.haskell.org/ghc/reportabug }}} The error message is still pretty confusing but at least it is not a panic. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/10279#comment:7 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler