From owner-freebsd-python@FreeBSD.ORG Mon Jul 4 11:07:09 2011
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Subject: Current problem reports assigned to freebsd-python@FreeBSD.org
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Note: to view an individual PR, use:
http://www.freebsd.org/cgi/query-pr.cgi?pr=(number).
The following is a listing of current problems submitted by FreeBSD users.
These represent problem reports covering all versions including
experimental development code and obsolete releases.
S Tracker Resp. Description
--------------------------------------------------------------------------------
o ports/156811 python lang/python32 has lower priority then lang/python31
o ports/156759 python [patch] lang/python: kevent does not accept KQ_NOTE_EX
o ports/156425 python lang/python26: Needs to include -L/usr/local/lib/pth i
o ports/156076 python [patch] databases/py-sqlite3: Undefined symbol "sqlite
o ports/155970 python [PATCH] lang/python: speed up upgrade-site-packages
o ports/155936 python lang/python27 Pthread: previous declaration of ...
o ports/155526 python [PATCH] devel/py-elementtree: ignore if python >= 2.5
o ports/155099 python lang/python*: Not handled "nis_failed.so" file by pyth
o ports/154795 python [PATCH] Mk/bsd.python.mk: style changes
o ports/154209 python [PATCH] lang/python: Install symlink for ptags
o ports/153952 python lang/python26 + pth fails to reconfigure cflags to inc
o ports/153167 python Problem with signals, threads, and subprocesses in lan
o ports/152886 python databases/py-bsddb fails to build with databases/db51
o ports/152224 python [patch] fix installed permissions for lang/python27
o ports/151534 python lang/python26 + WITH_PTH doesn't install correctly
f ports/150184 python cannot install ports/math/py-numpy
o ports/149167 python lang/python26 fails to build _ctypes on Sheevaplug (AR
o ports/148406 python [PATCH] lang/python26: fix build backage without threa
o ports/147291 python lang/python* doesn't compile nis.so when WITHOUT_NIS s
o ports/146957 python Mk/bsd.python.mk: PYTHONOPTIMIZE=1 in environ(7) break
o ports/146823 python [patch] lang/python26: knob to build _ctypes module ag
o ports/146644 python lang/python26: WITH_PTH option breaks most ports depen
o ports/140968 python x11-toolkits/py-tkinter(devel/pth): py26-tkinter-2.6.4
o ports/136917 python [patch] lang/python26: gettext detection
o ports/133081 python [bsd.python.mk] PYEASYINSTALL_ARCHDEP=yes makes broken
o ports/118301 python [patch] devel/py-setuptools easy-install.pth contents
o ports/115940 python Missed one file in lang/python25 if NO_NIS defined
27 problems total.
From owner-freebsd-python@FreeBSD.ORG Tue Jul 5 09:20:43 2011
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Subject: Re: ports/158662: [PATCH] Mk/bsd.python.mk: multiple changes
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Synopsis: [PATCH] Mk/bsd.python.mk: multiple changes
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Responsible-Changed-When: Tue Jul 5 09:20:42 UTC 2011
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bsd.python.mk is freebsd-python territory (via the GNATS Auto Assign
Tool)
http://www.freebsd.org/cgi/query-pr.cgi?pr=158662
From owner-freebsd-python@FreeBSD.ORG Tue Jul 5 12:37:27 2011
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Subject: Re: ports/154795: [PATCH] Mk/bsd.python.mk: style changes
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Synopsis: [PATCH] Mk/bsd.python.mk: style changes
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Superseded by ports/158662.
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From owner-freebsd-python@FreeBSD.ORG Thu Jul 7 12:41:22 2011
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Subject: Re: ports/158662: [PATCH] Mk/bsd.python.mk: multiple changes
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From owner-freebsd-python@FreeBSD.ORG Sat Jul 9 17:58:39 2011
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Cc: Duncan Findlay <duncan@duncf.ca>,
Olivier Cochard-Labbe <olivier@cochard.me>,
Benjamin Epitech <mlspirat42@gmail.com>
Subject: Re: ports/153167: Problem with signals, threads, and subprocesses in
lang/python
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Hi! (please Cc me with followups, I'm not subscribed)
Has anyone looked at this problem again yet? I found the PR after
debugging the same issue in the emulators/gns3 port, I'm not that
good at python but maybe the workaround I came up with (patch to
gns3's qemuwrapper.py, this is for an updated version of the port
that Olivier is working on) still is useful as a starting point,
maybe something like it could be added to subprocess.py, or
the more portable C equivalent at the appropriate place? (or even
generally in exec*()?)
--- qemuwrapper/qemuwrapper.py.orig
+++ qemuwrapper/qemuwrapper.py
@@ -45,6 +45,7 @@ import SocketServer
import time
import random
import pemubin
+import ctypes
__author__ = 'Thomas Pani and Jeremy Grossmann'
@@ -118,6 +119,33 @@ class xEMUInstance(object):
def unbase_disk(self):
pass
+ def preexec(self):
+ # FreeBSD preexec_fn hack to unblock signals in child processes
+ # to work around the bug in this PR:
+ # http://www.freebsd.org/cgi/query-pr.cgi?pr=ports/153167
+ # inspired by:
+ # http://stackoverflow.com/questions/3791398/how-to-stop-python-from-propagating-signals-to-subprocesses
+
+ # Get the size of the array used to
+ # represent the signal mask
+ SIGSET_NWORDS = 1024 / (8 * ctypes.sizeof(ctypes.c_uint))
+
+ # Define the sigset_t structure
+ class SIGSET(ctypes.Structure):
+ _fields_ = [
+ ('val', ctypes.c_uint * SIGSET_NWORDS)
+ ]
+
+ # Create a new sigset_t to mask out SIGINT
+ sigs = (ctypes.c_uint * SIGSET_NWORDS)()
+ mask = SIGSET(sigs)
+
+ SIG_SETMASK = 3
+ libc = ctypes.CDLL('libc.so')
+
+ # Unblock all signals
+ libc.sigprocmask(SIG_SETMASK, ctypes.pointer(mask), 0)
+
def start(self):
command = self._build_command()
@@ -125,6 +152,7 @@ class xEMUInstance(object):
try:
self.process = subprocess.Popen(command,
stdin=subprocess.PIPE,
+ preexec_fn=self.preexec,
cwd=self.workdir)
except OSError, e:
print >> sys.stderr, "Unable to start instance", self.name, "of", self.__class__