[arch-haskell] haskell-src-exts: Illegal instruction (core dumped)

[Magnus Therning]

On Fri, Apr 25, 2014 at 04:10:37PM +0200, Nicola Squartini wrote:
> Hi,
> 
> I already mentioned this problem earlier on this mailing list, but now I
> have some extra information.
> 
> It's the following (on GHCi):
> 
> Prelude> :m Language.Haskell.Exts
> Prelude Language.Haskell.Exts> parseFileContents "main = putStrLn \"Hello
> World\""
> Loading package array-0.5.0.0 ... linking ... done.
> Loading package filepath-1.3.0.2 ... linking ... done.
> Loading package deepseq-1.3.0.2 ... linking ... done.
> Loading package old-locale-1.0.0.6 ... linking ... done.
> Loading package time-1.4.2 ... linking ... done.
> Loading package bytestring-0.10.4.0 ... linking ... done.
> Loading package unix-2.7.0.1 ... linking ... done.
> Loading package directory-1.2.1.0 ... linking ... done.
> Loading package old-time-1.1.0.2 ... linking ... done.
> Loading package text-1.1.0.1 ... linking ... done.
> Loading package polyparse-1.9 ... linking ... done.
> Loading package cpphs-1.18.4 ... linking ... done.
> Loading package pretty-1.1.1.1 ... linking ... done.
> Loading package haskell-src-exts-1.15.0.1 ... linking ... done.
> Illegal instruction (core dumped)
> 
> 
> This affects everything that depends on haskell-src-exts, like hlint and
> stylish-haskell.
> The bug shows up only on my two AMD Athlon II X2 computers, but not on my
> other Intel Sandybridge.
> 
> I think it is related to -fllvm flag because I didn't have this bug with
> the 1.15.0 version, which didn't have the flag.
> 
> Can someone with similar AMD architecture try to replicate it, please?

Ouch!  The reason for using LLVM is this: http://ghc.haskell.org/trac/ghc/ticket/8768

So you probably should raise this as a ticket against GHC.

I hope the last comment on that ticket is correct and that it's fixed
in 7.8.3.

/M

-- 
Magnus Therning                      OpenPGP: 0xAB4DFBA4 
email: magnus at therning.org   jabber: magnus at therning.org
twitter: magthe               http://therning.org/magnus

In a hierarchy, every employee tends to rise to his level of incompetence.
     -- The Peter Principle
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