Crash in garbage collector

Colin Paul Adams colin at
Fri Nov 21 11:37:52 EST 2008

>>>>> "Simon" == Simon Marlow <marlowsd at> writes:

    Simon> Colin Paul Adams wrote:
    >>>>>>> "Ian" == Ian Lynagh <igloo at> writes:
    Ian> If you were lucky it would abort with an assertion
    Ian> failure. Anyway, gdb should now have debugging symbols to
    Ian> work with.
    >> It already did (I passed the -g option to gcc).
    >> I guess I will need to install the GHC source to get file
    >> listings. That sounds like hard work. I think I'll wait for
    >> 6.10.1 .

    Simon> If you're calling a Haskell library from C, the problem
    Simon> might be that you forgot hs_add_root(), or that your
    Simon> hs_add_root() isn't pointing to the right module (it should
    Simon> point to the module that transitively imports all the other
    Simon> modules in your library).  You can use multiple
    Simon> hs_add_root() calls if necessary.

I'm sure I have that right. There is only one module. Unless somehow
the __GLASGOW_HASKELL__ symbol isn't getting defined for the C
compile. I'll try removing the #ifdef to see if that makes a difference.
Colin Adams
Preston Lancashire

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