[Python-Dev] Mac OSX issues (original) (raw)

Barry A. Warsaw barry@python.org
Sun, 1 Dec 2002 23:39:13 -0500

"GvR" == Guido van Rossum <guido@python.org> writes:

GvR> - test_re crashes unless I do ulimit -s 2000 -- haven't tried
GvR> other values, but the default of 512 (KB) is insufficient.  I
GvR> know the README file explains this, but now that I've
GvR> experienced this myself, I wonder if we shouldn't hack main()
GvR> to increase the stack size to 2 MB, inside an #ifdef darwin
GvR> or something like that.

+1, but I'll defer to Jack. We discussed this a while back (for Py2.2.2 IIRC), which is when I updated the README bit. FWIW, Pipermail (in Mailman) suffers the same fate and contains the following bit of code.

-Barry

-------------------- snip snip --------------------

MacOSX has a default stack size that is too small for deeply recursive

regular expressions. We see this as crashes in the Python test suite when

running test_re.py and test_sre.py. The fix is to set the stack limit to

2048; the general recommendation is to do in the shell before running the

test suite. But that's inconvenient for a daemon like the qrunner.

AFAIK, this problem only affects the archiver, so we're adding this work

around to this file (it'll get imported by the bundled pipermail or by the

bin/arch script. We also only do this on darwin, a.k.a. MacOSX.

if sys.platform == 'darwin': try: import resource except ImportError: pass else: soft, hard = resource.getrlimit(resource.RLIMIT_STACK) newsoft = min(hard, max(soft, 1024*2048)) resource.setrlimit(resource.RLIMIT_STACK, (newsoft, hard))