Re: Segfault when using readline and dynamically linked code

[Neil Jerram]

>>>>> "ralf" == ralf  <address@hidden> writes:

    ralf> Hello everyone, i just encountered a strange problem: i
    ralf> wrote some small wrapper code that creates guile bindings
    ralf> for some external library. Everything works fine (thank's
    ralf> for the nice documentation) _unless_ i activate readline
    ralf> support.  As soon as i use the tab key guile segfaults.
    ralf> Using readline without my custom module works without any
    ralf> problems, so i assume the segfault is caused by my code. As
    ralf> a starting point i compiled guile and my module with
    ralf> debuging support, but the backtraces i get aren't very
    ralf> helpfull:

    ralf> smobs. Any pointers to where i might start looking?

The backtrace shows the GC coming to a null pointer.  My guess would
be that you've written a SMOB mark function that is telling the GC to
mark something that is actually NULL.

Does your C code include SMOB stuff?

        Neil