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From:	Michael Wild <themiwi AT gmail DOT com>
Date:	Sun, 1 Feb 2015 14:14:51 +0100
Message-ID:	<CAALQ5rkE3Qoq2ciQGxcia2R81U7=yAF_8eFPYQDDKYy3tVjbbw@mail.gmail.com>
Subject:	Fork errors in python2.7 on 64-bit Cygwin
To:	The Cygwin Mailing List <cygwin AT cygwin DOT com>
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Dear all

I know, this is topic everybody is fed up with and that it has been
discussed ad nauseum. Still, I can't figure out what's going on...
Here the symptoms:

* Trying to run a shell command from Python fails 50% of the time
with: address space needed by 'cygz.dll' (0x450000) is already
occupied. So far only Python shows this problem. E.g. the following
simple snippet regularly fails:

   >>> import subprocess
   >>> subprocess.check_call('sleep 1'.split())

* rebaseall doesn't help (even tried a fresh installation of Cygwin, a
clean PATH, etc).

* rebase -si only shows an asterisk for the following entries:

/usr/bin/cygperl5_14.dll  base 0x0003fe9b0000 size 0x00190000 *
/usr/lib/perl5/5.14/x86_64-cygwin-threads/CORE/cygperl5_14.dll   base
0x0003fe9b0000 size 0x00190000 *

  Given that they both belong to the same package and have the same
name, I tend to think that this is a spurious message that has nothing
to do with my problem. Nothing suspicious about cygz.dll in the output
(at least as far as I can tell).

* The 32-bit Cygwin installation is fine and never shows this behavior


Anybody got an idea how to get to the bottom of this problem?

Cheers

Michael

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