[Haskell-beginners] Segmentation fault

[Hollister Herhold]

Sorry, I wasn't clear - I was thinking OS X 10.8.3. Your uname says 10.8.0, which I now see (after running uname on my 10.7.5 installation, it says darwin 11.4.2) has nothing to do with the version of OS X you're running, so never mind. What version of OS X *are* you running?

The Haskell Platform comes with ghc 7.4.2. The newest release version of ghc is actually 7.6.3, and you can find the binary distributions here:

http://www.haskell.org/ghc/

The Haskell Platform "ships" with an older version that's been "shaken down" a little more than the latest-and-greatest ghc. It also comes with a selection of libraries that have been well-tested. You *can* start with just ghc 7.6.3 and install the libraries yourself, however. I believe the next Haskell Platform release (scheduled for May-ish, I think) will have 7.6.3, but don't quote me on that. Discussions were ongoing last I looked.

I'd suggest downloading and installing the binary for ghc 7.6.3 and see if ghci runs on that without crashing.

Hope this helps.


On Apr 27, 2013, at 7:56 AM, Michael Peternell wrote:

> Is there a version 10.8.3?
> 
> I downloaded Haskell from the official website at http://www.haskell.org/platform/ . I followed the one and only "Download" link on the homepage. The Wikipedia says that 7.6.2 is the newest version although I cannot find that version on the haskell website. It's hard for me to believe that the development version would be 3 major version numbers ahead, but maybe we are talking about different implementations?
> 
> Where can I find the latest version?
> 
> Regards,
> Michael
> 
> Am 27.04.2013 um 14:12 schrieb Hollister Herhold:
> 
>> 
>> Just a guess, but maybe you could try updating to 10.8.3? I'm pretty sure I've seen people on the ghc-devel mailing list running 10.8.3 and things work. You could also try downloading the ghc 7.6.2 binary.
>> 
>> 
>> On Apr 27, 2013, at 5:59 AM, Michael Peternell wrote:
>> 
>>> Hey,
>>> 
>>> i did a little search.
>>> 
>>> it seems like this was already a bug 3 years ago:
>>> http://trac.haskell.org/haskeline/ticket/105
>>> and it reappeared on a Mac in version 7.4.1  8 months ago
>>> http://hackage.haskell.org/trac/ghc/ticket/7212
>>> someone has refiled the bug for 7.4.2
>>> http://hackage.haskell.org/trac/ghc/ticket/7403
>>> the bug is discussed in communities
>>> http://forums.gentoo.org/viewtopic-t-844842-start-0.html
>>> 
>>> the 7212 ticket is marked as "wontfix" and the 7403-ticket is marked as "duplicate". i don't wanna file another bug report, there are already enough of them.
>>> 
>>> please, someone fix this bug.
>>> 
>>> Regards,
>>> Michael
>>> 
>>> Am 27.04.2013 um 12:42 schrieb Michael Peternell:
>>> 
>>>> Hi,
>>>> 
>>>> sometimes when I start ghci, I just get a segmentation fault. Sometimes I get even 15 segmentation faults in a row, and sometimes I can open it many times and it works each time.
>>>> 
>>>> I downloaded the Haskell Platform for Mac, 64Bit, from
>>>> http://www.haskell.org/platform/mac.html
>>>> I verified the SHA1-Sum, btw.
>>>> 
>>>> I tried reinstalling the platform, and I tried deleting the ~/.ghc directory, but nothing works. I didn't do anything fancy with Haskell, I just downloaded it yesterday and I didn't tamper with any haskell-files outside of my home-directory. The only kernel extensions I have installed are the ones from VMWare Fusion and maybe flux. (i'm not sure if flux involves kernel extensions or how deeply it messes with the OS.)
>>>> 
>>>> michael at MacMichi:~ $ rm -rf .ghc
>>>> michael at MacMichi:~ $ ghci
>>>> GHCi, version 7.4.2: http://www.haskell.org/ghc/  :? for help
>>>> Loading package ghc-prim ... linking ... done.
>>>> Loading package integer-gmp ... linking ... done.
>>>> Loading package base ... linking ... done.
>>>> Segmentation fault
>>>> michael at MacMichi:~ $ uname -a
>>>> Darwin MacMichi.local 10.8.0 Darwin Kernel Version 10.8.0: Tue Jun  7 16:32:41 PDT 2011; root:xnu-1504.15.3~1/RELEASE_X86_64 x86_64
>>>> 
>>>> michael at MacMichi:~ $ ghci
>>>> GHCi, version 7.4.2: http://www.haskell.org/ghc/  :? for help
>>>> Loading package ghc-prim ... linking ... done.
>>>> Loading package integer-gmp ... linking ... done.
>>>> Loading package base ... linking ... done.
>>>> Segmentation fault
>>>> michael at MacMichi:~ $ ghci
>>>> GHCi, version 7.4.2: http://www.haskell.org/ghc/  :? for help
>>>> Loading package ghc-prim ... linking ... done.
>>>> Loading package integer-gmp ... linking ... done.
>>>> Loading package base ... linking ... done.
>>>> Prelude> sum (takeWhile (<10000) (filter odd (map (^2) [1..])))
>>>> 166650
>>>> Prelude> 
>>>> 
>>>> Any insights on what is really going on behind the scenes will be appreciated.
>>>> 
>>>> Regards,
>>>> Michael
>>>> 
>>>> 
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