On Dec 21, 2008, at 11:55 AM, James Gray wrote: > On Dec 21, 2008, at 10:50 AM, Federico Builes wrote: >> >> >> Any ideas of what might be triggering it? This happens in 1.8.6p287 > and 1.9 HEAD under OS X 10.5.5 > > I'm wondering if the difference that makes it happen or not happen > is related to how Ruby is compiled. For example, if pthread was > used or not. Just a wild guess I'm compiling like this: $ ./configure --with-readline-dir=/usr/local/lib $ make $ make install pthread support is not enabled (segfaults when I try to use it: http://gist.github.com/38721) . -- Federico