Re: [libxml-devel] Segmentation fault in document.rb

[Charlie Savage]

Dmitri Priimak wrote:

Charlie Savage wrote:

Traceback - sure. Make sure your version of libxml-ruby and libxml are compiled with debug information. Then enable crash dumps on your linux box. When you see a crash, inspect the crash dump.

Alternatively, run your rails app under gdb (or attach to it with gdb) and set it up to break on an exception.

Thanks, will do that next time.

results = document.find('/')
...
results = nil
GC.start

FYI - most likely situation is you are using document.find to get an xpath object. Then the xpath object is being freed after the document. To fix that for now:

I see, but why is that needed? Are you using some global variables to keep track of things?

Charlie

In my view its a bug in Ruby's GC. See the emails I posted to ruby-core a couple month ago. There is a way to work around it, but haven't go to that yet.

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