[mod_python] on OSX Leopard: "The process has forked..." crash

Lawrence Wang levity at gmail.com
Mon Oct 6 18:51:26 EDT 2008


Hi! I compiled mod_python on OSX Leopard with a simple ./configure && make
&& sudo make install, and it works just fine for almost everything. However,
certain Python operations cause Apache to crash with many of these errors in
the log:

> The process has forked and you cannot use this CoreFoundation functionality
> safely. You MUST exec().
>
Break on
> __THE_PROCESS_HAS_FORKED_AND_YOU_CANNOT_USE_THIS_COREFOUNDATION_FUNCTIONALITY___YOU_MUST_EXEC__()
> to debug.


One example of code that causes this:

import urllib2
>
data = urllib2.urlopen('http://www.google.com').read()


I'm pretty sure this is caused by mod_python and not, say, python itself,
because I don't get the same error when I run the same script as a CGI
handler in apache.

The hardware is a MacBook with Core 2 Duo (hence 64-bit). Some googling
revealed that the same error is caused by an old PHP library[1], and that is
solvable by changing its configuration and recompiling, so I'm hoping the
same is the case here.

Any help you can offer is greatly appreciated!

Lawrence Wang

[1]:
http://iparrizar.mnstate.edu/~juan/urania/2008/09/05/forking-problems-with-freetype-solved/
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