[Haskell-beginners] Segmentation fault

[Michael Peternell]

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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