#10570: sage leaves a lot of stackframes alive at startup
-------------------------------+--------------------------------------------
Reporter: mderickx | Owner: rlm
Type: defect | Status: needs_review
Priority: minor | Milestone: sage-duplicate/invalid/wontfix
Component: memleak | Keywords:
Author: Maarten Derickx | Upstream: N/A
Reviewer: Keshav Kini | Merged:
Work_issues: |
-------------------------------+--------------------------------------------
Changes (by mderickx):
* priority: critical => minor
* status: needs_work => needs_review
* milestone: sage-4.7 => sage-duplicate/invalid/wontfix
Old description:
> This is a really really bad thing and probably related to a lot of the
> memory leaks shown up recently.
> All the ipython frames are probably ok on the stack. But most of the
> other frames come from a call stack frame which is unneccesarily alive.
>
> {{{
> ----------------------------------------------------------------------
> | Sage Version 4.6.1.alpha3, Release Date: 2010-12-05 |
> | Type notebook() for the GUI, and license() for information. |
> ----------------------------------------------------------------------
> **********************************************************************
> * *
> * Warning: this is a prerelease version, and it may be unstable. *
> * *
> **********************************************************************
> sage: import gc
> sage: import inspect
> sage: l1=gc.get_objects()
> sage: frames=[x for x in l1 if inspect.isframe(x)]
> sage: len(frames)
> 26
> sage: for i in frames: inspect.getframeinfo(i)
> ....:
> Traceback(filename='/Applications/sage-4.6.rc0/local/lib/python2.6/site-
> packages/IPython/Shell.py', lineno=81, function='mainloop',
> code_context=[' self.IP.mainloop(banner)\n'], index=0)
> Traceback(filename='/Applications/sage-4.6.rc0/local/lib/python2.6/site-
> packages/IPython/iplib.py', lineno=1577, function='mainloop',
> code_context=[' self.interact(banner)\n'], index=0)
> Traceback(filename='/Applications/sage-4.6.rc0/local/lib/python2.6/site-
> packages/IPython/iplib.py', lineno=1813, function='interact',
> code_context=[' more = self.push(line)\n'], index=0)
> Traceback(filename='/Applications/sage-4.6.rc0/local/lib/python2.6/site-
> packages/IPython/iplib.py', lineno=2121, function='push', code_context=['
> return more\n'], index=0)
> Traceback(filename='/Applications/sage-4.6.rc0/local/lib/python2.6/site-
> packages/IPython/iplib.py', lineno=2045, function='runsource',
> code_context=[' return False\n'], index=0)
> Traceback(filename='/Applications/sage-4.6.rc0/local/lib/python2.6/site-
> packages/IPython/iplib.py', lineno=2093, function='runcode',
> code_context=[' return outflag\n'], index=0)
> Traceback(filename='<ipython console>', lineno=1, function='<module>',
> code_context=None, index=None)
> Traceback(filename='/Applications/sage-4.6.rc0/local/lib/python2.6/site-
> packages/sage/rings/qqbar.py', lineno=5800, function='_init_qqbar',
> code_context=[" ZZX_x = ZZ['x'].gen()\n"], index=0)
> Traceback(filename='coerce_actions.pyx', lineno=184,
> function='sage.structure.coerce_actions.detect_element_action
> (sage/structure/coerce_actions.c:4184)', code_context=None, index=None)
> Traceback(filename='coerce_actions.pyx', lineno=184,
> function='sage.structure.coerce_actions.detect_element_action
> (sage/structure/coerce_actions.c:4184)', code_context=None, index=None)
> Traceback(filename='coerce_actions.pyx', lineno=184,
> function='sage.structure.coerce_actions.detect_element_action
> (sage/structure/coerce_actions.c:4184)', code_context=None, index=None)
> Traceback(filename='coerce_actions.pyx', lineno=237,
> function='sage.structure.coerce_actions.ModuleAction.__init__
> (sage/structure/coerce_actions.c:4713)', code_context=None, index=None)
> Traceback(filename='/Applications/sage-4.6.rc0/local/lib/python2.6/site-
> packages/sage/rings/qqbar.py', lineno=5253, function='_interval_fast',
> code_context=[' return v\n'], index=0)
> Traceback(filename='coerce_actions.pyx', lineno=278,
> function='sage.structure.coerce_actions.ModuleAction.__init__
> (sage/structure/coerce_actions.c:5174)', code_context=None, index=None)
> Traceback(filename='coerce_actions.pyx', lineno=278,
> function='sage.structure.coerce_actions.ModuleAction.__init__
> (sage/structure/coerce_actions.c:5174)', code_context=None, index=None)
> Traceback(filename='/Applications/sage-4.6.rc0/local/lib/python2.6/site-
> packages/sage/rings/qqbar.py', lineno=2177, function='__init__',
> code_context=[' self._value = self._descr._interval_fast(64)\n'],
> index=0)
> Traceback(filename='/Applications/sage-4.6.rc0/local/lib/python2.6/site-
> packages/sage/rings/qqbar.py', lineno=2854, function='__init__',
> code_context=[' AlgebraicNumber_base.__init__(self, QQbar, x)\n'],
> index=0)
> Traceback(filename='/Applications/sage-4.6.rc0/local/bin/sage-ipython',
> lineno=52, function='<module>',
> code_context=["ipy_sage.mainloop(sys_exit=1, banner='')\n"], index=0)
> Traceback(filename='/Applications/sage-4.6.rc0/local/lib/python2.6/site-
> packages/IPython/Shell.py', lineno=1233, function='start',
> code_context=[' return shell(user_ns = user_ns)\n'], index=0)
> Traceback(filename='/Applications/sage-4.6.rc0/local/lib/python2.6/site-
> packages/IPython/Shell.py', lineno=78, function='__init__',
> code_context=['
> debug=debug,shell_class=shell_class)\n'], index=0)
> Traceback(filename='/Applications/sage-4.6.rc0/local/lib/python2.6/site-
> packages/IPython/ipmaker.py', lineno=782, function='make_IPython',
> code_context=[' return IP\n'], index=0)
> Traceback(filename='/Applications/sage-4.6.rc0/local/lib/python2.6/site-
> packages/IPython/ipmaker.py', lineno=66, function='force_import',
> code_context=[' __import__(modname)\n'], index=0)
> Traceback(filename='ipy_profile_sage.py', lineno=33, function='<module>',
> code_context=[" _ip.expose_magic('prun', lambda self, s:
> old_prun(preparse(s)))\n"], index=0)
> Traceback(filename='/Applications/sage-4.6.rc0/local/lib/python2.6/site-
> packages/sage/all_cmdline.py', lineno=35, function='<module>',
> code_context=['sage.misc.session.init()\n'], index=0)
> Traceback(filename='/Applications/sage-4.6.rc0/local/lib/python2.6/site-
> packages/sage/all.py', lineno=313, function='<module>',
> code_context=["sage.structure.sage_object.register_unpickle_override('sage.categories.category_types',
> 'ModularAbelianVarieties', ModularAbelianVarieties)\n"], index=0)
> Traceback(filename='/Applications/sage-4.6.rc0/local/lib/python2.6/site-
> packages/sage/combinat/species/generating_series.py', lineno=269,
> function='factorial_gen', code_context=['def factorial_gen():\n'],
> index=0)
> }}}
>
> Apply trac_10570.v2.patch
> Depends on #10548
New description:
This is a really really bad thing and probably related to a lot of the
memory leaks shown up recently. All the ipython frames are probably ok on
the stack. But most of the other frames come from a call stack frame which
is unneccesarily alive.
{{{
----------------------------------------------------------------------
| Sage Version 4.6.1.alpha3, Release Date: 2010-12-05 |
| Type notebook() for the GUI, and license() for information. |
----------------------------------------------------------------------
**********************************************************************
* *
* Warning: this is a prerelease version, and it may be unstable. *
* *
**********************************************************************
sage: import gc
sage: import inspect
sage: l1=gc.get_objects()
sage: frames=[x for x in l1 if inspect.isframe(x)]
sage: len(frames)
26
sage: for i in frames: inspect.getframeinfo(i)
....:
Traceback(filename='/Applications/sage-4.6.rc0/local/lib/python2.6/site-
packages/IPython/Shell.py', lineno=81, function='mainloop',
code_context=[' self.IP.mainloop(banner)\n'], index=0)
Traceback(filename='/Applications/sage-4.6.rc0/local/lib/python2.6/site-
packages/IPython/iplib.py', lineno=1577, function='mainloop',
code_context=[' self.interact(banner)\n'], index=0)
Traceback(filename='/Applications/sage-4.6.rc0/local/lib/python2.6/site-
packages/IPython/iplib.py', lineno=1813, function='interact',
code_context=[' more = self.push(line)\n'], index=0)
Traceback(filename='/Applications/sage-4.6.rc0/local/lib/python2.6/site-
packages/IPython/iplib.py', lineno=2121, function='push', code_context=['
return more\n'], index=0)
Traceback(filename='/Applications/sage-4.6.rc0/local/lib/python2.6/site-
packages/IPython/iplib.py', lineno=2045, function='runsource',
code_context=[' return False\n'], index=0)
Traceback(filename='/Applications/sage-4.6.rc0/local/lib/python2.6/site-
packages/IPython/iplib.py', lineno=2093, function='runcode',
code_context=[' return outflag\n'], index=0)
Traceback(filename='<ipython console>', lineno=1, function='<module>',
code_context=None, index=None)
Traceback(filename='/Applications/sage-4.6.rc0/local/lib/python2.6/site-
packages/sage/rings/qqbar.py', lineno=5800, function='_init_qqbar',
code_context=[" ZZX_x = ZZ['x'].gen()\n"], index=0)
Traceback(filename='coerce_actions.pyx', lineno=184,
function='sage.structure.coerce_actions.detect_element_action
(sage/structure/coerce_actions.c:4184)', code_context=None, index=None)
Traceback(filename='coerce_actions.pyx', lineno=184,
function='sage.structure.coerce_actions.detect_element_action
(sage/structure/coerce_actions.c:4184)', code_context=None, index=None)
Traceback(filename='coerce_actions.pyx', lineno=184,
function='sage.structure.coerce_actions.detect_element_action
(sage/structure/coerce_actions.c:4184)', code_context=None, index=None)
Traceback(filename='coerce_actions.pyx', lineno=237,
function='sage.structure.coerce_actions.ModuleAction.__init__
(sage/structure/coerce_actions.c:4713)', code_context=None, index=None)
Traceback(filename='/Applications/sage-4.6.rc0/local/lib/python2.6/site-
packages/sage/rings/qqbar.py', lineno=5253, function='_interval_fast',
code_context=[' return v\n'], index=0)
Traceback(filename='coerce_actions.pyx', lineno=278,
function='sage.structure.coerce_actions.ModuleAction.__init__
(sage/structure/coerce_actions.c:5174)', code_context=None, index=None)
Traceback(filename='coerce_actions.pyx', lineno=278,
function='sage.structure.coerce_actions.ModuleAction.__init__
(sage/structure/coerce_actions.c:5174)', code_context=None, index=None)
Traceback(filename='/Applications/sage-4.6.rc0/local/lib/python2.6/site-
packages/sage/rings/qqbar.py', lineno=2177, function='__init__',
code_context=[' self._value = self._descr._interval_fast(64)\n'],
index=0)
Traceback(filename='/Applications/sage-4.6.rc0/local/lib/python2.6/site-
packages/sage/rings/qqbar.py', lineno=2854, function='__init__',
code_context=[' AlgebraicNumber_base.__init__(self, QQbar, x)\n'],
index=0)
Traceback(filename='/Applications/sage-4.6.rc0/local/bin/sage-ipython',
lineno=52, function='<module>',
code_context=["ipy_sage.mainloop(sys_exit=1, banner='')\n"], index=0)
Traceback(filename='/Applications/sage-4.6.rc0/local/lib/python2.6/site-
packages/IPython/Shell.py', lineno=1233, function='start', code_context=['
return shell(user_ns = user_ns)\n'], index=0)
Traceback(filename='/Applications/sage-4.6.rc0/local/lib/python2.6/site-
packages/IPython/Shell.py', lineno=78, function='__init__',
code_context=['
debug=debug,shell_class=shell_class)\n'], index=0)
Traceback(filename='/Applications/sage-4.6.rc0/local/lib/python2.6/site-
packages/IPython/ipmaker.py', lineno=782, function='make_IPython',
code_context=[' return IP\n'], index=0)
Traceback(filename='/Applications/sage-4.6.rc0/local/lib/python2.6/site-
packages/IPython/ipmaker.py', lineno=66, function='force_import',
code_context=[' __import__(modname)\n'], index=0)
Traceback(filename='ipy_profile_sage.py', lineno=33, function='<module>',
code_context=[" _ip.expose_magic('prun', lambda self, s:
old_prun(preparse(s)))\n"], index=0)
Traceback(filename='/Applications/sage-4.6.rc0/local/lib/python2.6/site-
packages/sage/all_cmdline.py', lineno=35, function='<module>',
code_context=['sage.misc.session.init()\n'], index=0)
Traceback(filename='/Applications/sage-4.6.rc0/local/lib/python2.6/site-
packages/sage/all.py', lineno=313, function='<module>',
code_context=["sage.structure.sage_object.register_unpickle_override('sage.categories.category_types',
'ModularAbelianVarieties', ModularAbelianVarieties)\n"], index=0)
Traceback(filename='/Applications/sage-4.6.rc0/local/lib/python2.6/site-
packages/sage/combinat/species/generating_series.py', lineno=269,
function='factorial_gen', code_context=['def factorial_gen():\n'],
index=0)
}}}
Apply nothing
--
Comment:
I don't consider the remaining frame corresponding to the factorial
generator a bug. It is there because appearantly someone thinks that the
factorial generator should be available as a generator instead of a
function in some module.
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/10570#comment:8>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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