I think this is known problem with interpreted mode in 64-bit machines: https://github.com/albertoruiz/hmatrix/issues/2 The program should work ok in compiled mode. Alberto On 07/22/2013 06:27 PM, Edward Z. Yang wrote:

Usually, a bus error is similar to a segmentation fault, in that it indicates something has gone terribly wrong. However, as hmatrix is an API to some foreign C libraries, I would not rule out the possibility that it's a bug in the library itself.

What version of hmatrix do you have, and if you compile the program with -debug and run it in gdb, do you get a backtrace?

Edward

Excerpts from Adrian Victor Crisciu's message of Mon Jul 22 06:38:46 -0700 2013:

...

Hi,

I need to import in one of my programs the minimization module form Numeric.GSL.Minimization. When I run even the example code in interactive mode, ghci crashes with a "Bus error" message. Is this a bug, or is something wrong with my code?

The offending program follows:

module MinMaxTest where

import Numeric.GSL.Minimization

objFunc :: [Double] -> Double objFunc [x, y] = 10 * (x-1)^2 + 20 * (y-2)^2 + 30

main :: IO () main = do let (s, p) = minimize NMSimplex2 1e-2 30 [1, 1] objFunc [5, 7] print s print p

I use ghc-7.6.3 on a Slackware-Linux platform.

Can anyone help?

Thank you in advance. Adrian-Victor

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It worked! Thank you very much! I added the following lines to hmatrix.cabal: if os(linux) if arch(x86_64) cc-options: -fPIC Maybe these lines should be included in future versions of the .cabal file. Thank you very, very much! Adrian-Victor

On Mon, Jul 29, 2013 at 11:36 AM, Greg Horn wrote:

This might also be needed in OSX, but I don't remember.

OS X *always* builds PIC; a holdover from PPC where, while it was possible to build non-PIC, pretty much everything expected PIC even for static linking (it's part of the official PPC ABI). You have to put in some effort to make non-PIC code. -- brandon s allbery kf8nh sine nomine associates allbery.b@gmail.com ballbery@sinenomine.net unix, openafs, kerberos, infrastructure, xmonad http://sinenomine.net