It is not a MacRuby problem. This message is triggered by the GC when an operation (allocation, collection, whatever) happens on a thread that has not been registered. I suspect macfuse spawns new pthreads without calling the objc_registerThreadWithCollector() function. Laurent On Feb 9, 2011, at 4:43 PM, Joel Reymont wrote:

I get a bunch of errors like this when running the hellofs MacFUSE example [1]:

macruby(25346,0x107082000) malloc: *** auto malloc[25346]: error: GC operation on unregistered thread. Thread registered implicitly. Break on auto_zone_thread_registration_error() to debug.

Is this a MacRuby problem? How do I fix it?

Thanks, Joel

[1] http://www.macruby.org/trac/ticket/922

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