Segfault when using integer-simple

[Carter Schonwald]

Could you open a ticket on trac for this issue?  Also have you tried to
reproduce it on other architectures?

On Saturday, June 15, 2013, Stephen Paul Weber wrote:

> This may not be integer-simple, but that's my immediate suspicion.  The
> following two programs crash with SIGSEGV and core dump when run on my BB10
> device after being cross-compiled with my GHC-to-QNXNTO-ARM cross-compiling
> GHC:
>
>  module Main (main) where
>>
>> import Data.Bits
>> import Data.ByteString
>> import qualified Data.ByteString.Char8 as C8
>>
>> os2ip :: ByteString -> Integer
>> os2ip = foldl' (\a b -> (256 * a) .|. (fromIntegral b)) 0
>>
>> main :: IO ()
>> main = do
>>         print $ os2ip x
>>         where
>>         x = C8.pack "\NUL\STX\255\255\255\255\255\**
>> 255\255\255\255\255\255\255\**255\255\255\255\255\255\255\**
>> 255\255\255\255\255\255\255\**255\255\255\255\255\255\255\**
>> 255\255\255\255\255\255\255\**255\255\255\255\255\255\255\**
>> 255\255\255\255\255\255\255\**255\255\255\255\255\255\255\**
>> 255\255\255\255\255\255\255\**255\255\255\255\255\255\255\**
>> 255\255\255\255\255\255\255\**255\255\255\255\255\255\255\**
>> 255\255\255\255\255\255\255\**255\255\255\255\255\255\255\**
>> 255\255\255\255\255\255\255\**255\255\255\255\255\255\255\**
>> 255\255\255\255\255\255\255\**255\255\255\255\255\255\255\**
>> 255\255\255\255\255\255\255\**255\255\255\255\255\255\255\**
>> 255\255\255\255\255\255\255\**255\255\255\255\255\255\255\**
>> 255\255\255\255\255\255\255\**255\255\255\255\255\255\255\**
>> 255\255\255\255\255\255\255\**255\255\255\255\255\255\255\**
>> 255\255\255\255\255\255\255\**255\255\255\255\255\255\255\**
>> 255\255\255\255\NUL\ETX\SOH\**255\255\255\255\255\255\255\**
>> 255\255\255\255\255\255\255\**255\255\255\255\255\255\255\**
>> 255\255\255\255\255\255\255\**255\255\255"
>>
>
> ---
>
>  module Main (main) where
>>
>> main :: IO ()
>> main = print 169821641172389640937095636777**
>> 672117931888945045504182713271**897430274187839083732143233634**
>> 367563316254925040331580602942**790529924419031237257992694047**
>> 545188803054325440702792009735**658578224936744314329623399862**
>> 853427161588994478038000957583**036049445212750560294647972107**
>> 700330648403394932373528288706**138101730866129542001812796094**
>> 504052779945357555018210304989**340497464935845180607042646690**
>> 920787035715174921382511732745**931975718868480005317353569848**
>> 454618331425749699355019762926**384123909468814180690222898222**
>> 556785716853422930906736084397**064171894642825018414586574929**
>> 919999999999999999999999999999**999999999999999999999999999999**
>> 999999999999999999999999999999**999
>>
>
> ---
>
> So, it seems to be a problem with forcing very large integers.  I'm not
> sure if this is my integer-simple build, integer-simple in general, or
> something strange in the way I built GHC.
>
> Can one of the people working on Android and/or Raspberry Pi ports try
> this code out and let me know if it works for you?  I'll try to do a native
> (non-cross-compile) build of GHC with integer-simple as well, to test this
> on.
>
> --
> Stephen Paul Weber, @singpolyma
> See <http://singpolyma.net> for how I prefer to be contacted
> edition right joseph
>
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