From: matz@... (Yukihiro Matsumoto)
Date: 2003-12-04T16:31:40+09:00
Subject: Re: debugging [BUG] messages/c ext woes

Hi,

In message "debugging [BUG] messages/c ext woes"
    on 03/12/04, "Ara.T.Howard" <ahoward@ngdc.noaa.gov> writes:

|i'm getting a fatal error using a little c extention i've written, one of
|these (rb_fatal?) kinds:
|
|  ./nfsstore.rb:123: [BUG] Segmentation fault

Can you get the stack trace using gdb or some other debugger?
I can say little from information you've supplied.

|my understanding of StringValuePtr is that it would modifiy lockfile (lvalue)
|in place and return a char * but this is the first extenstion i've written
|since it was introduced.  am i doing something silly there?  should i be
|taking a copy (dup) of lockfile before doing this? everything thing else looks
|o.k. to me.

No. It seems OK.  But segmentation fault can be happen everywhere.
Might be a bug in your code, might be a bug in the core, or might be a
bug in the library you linked to the extension.


							matz.