Created attachment 599658 [details] Output of emerge --info "=dev-haskell/http-4000.3.14" Encountered the following error when trying to merge dev-haskell/http-4000.3.14: Network/Stream.hs:52:24: warning: [-Wdeprecations] In the use of ‘strMsg’ (imported from Control.Monad.Error, but defined in transformers-0.5.2.0:Control.Monad.Trans.Error): Deprecated: "Use Control.Monad.Trans.Except instead" [ 3 of 18] Compiling Network.HTTP.Utils ( Network/HTTP/Utils.hs, dist/build/Network/HTTP/Utils.o ) [ 4 of 18] Compiling Network.HTTP.MD5Aux ( Network/HTTP/MD5Aux.hs, dist/build/Network/HTTP/MD5Aux.o ) ghc: internal error: evacuate: strange closure type 0 (GHC version 8.0.2 for x86_64_unknown_linux) Please report this as a GHC bug: http://www.haskell.org/ghc/reportabug /var/tmp/portage/dev-haskell/http-4000.3.14/temp/environment: line 429: 40 Aborted ./setup "$@" * ERROR: dev-haskell/http-4000.3.14::gentoo failed (compile phase): * setup build failed * * Call stack: * ebuild.sh, line 125: Called src_compile * environment, line 1845: Called haskell-cabal_src_compile * environment, line 1502: Called cabal_src_compile * environment, line 674: Called cabal-build * environment, line 432: Called die * The specific snippet of code: * ./setup "$@" || die "setup build failed" I've found older bug reports online with similar errors in the Haskell bug tracker and this Gentoo bug: https://bugs.gentoo.org/show_bug.cgi?id=373947 . It seems this arises due to memory corruption in GHC as I understand it.
Created attachment 599660 [details] Build log
Yes, it's usually a low-level memory corruption on haskell heap. Might be a GHC bug, external C library bug or hardware memory corruption. If you try to build dev-haskell/http a few times does it fail in a similar way? Do you observe similar error on other haskell packages?
(In reply to Sergei Trofimovich from comment #2) > Yes, it's usually a low-level memory corruption on haskell heap. Might be a > GHC bug, external C library bug or hardware memory corruption. > > If you try to build dev-haskell/http a few times does it fail in a similar > way? Do you observe similar error on other haskell packages? Hmm, I hadn't thought of just trying to build it a few times, but turns out that worked :) Successfully built dev-haskell/http-4000.3.14, followed by dev-haskell/cabal-install, app-text/pandoc, and dev-haskell/pandoc-citeproc, all without issues. Thanks for the help!
I tried to build http in a loop for a a few hundred times and got no failures. Closing as WORKSFORME. I suggest to check you RAM with sys-apps/memtest86+ (or something similar) to rule out simple bit flip hardware corruption. Those are very nasty.
