#715: Parents probably not reclaimed due to too much caching
-------------------------------------------------------------------+--------
Reporter: robertwb |
Owner: somebody
Type: defect |
Status: needs_review
Priority: major |
Milestone: sage-5.4
Component: coercion |
Resolution:
Keywords: weak cache coercion Cernay2012 | Work
issues:
Report Upstream: N/A |
Reviewers: Jean-Pierre Flori, Simon King, Nils Bruin
Authors: Simon King, Jean-Pierre Flori | Merged
in:
Dependencies: #9138, #11900, #11599, to be merged with #11521 |
Stopgaps:
-------------------------------------------------------------------+--------
Comment (by SimonKing):
Playing around with [attachment:cachefunc_94107.py]:
`sage cachefunc_94107.py` also results in that segfault.
Starting sage and then attaching cachefunc_94107.py to the interactive
session, I get:
{{{
sage: attach ~/SAGE/work/signal11/cachefunc_94107.py
---------------------------------------------------------------------------
SystemExit Traceback (most recent call
last)
/scratch/sking/sage-5.4.beta0/devel/sage-main/<ipython console> in
<module>()
/scratch/sking/sage-5.4.beta0/local/lib/python2.7/site-
packages/sage/misc/preparser.pyc in load(filename, globals, attach)
1646
1647 if fpath.endswith('.py'):
-> 1648 execfile(fpath, globals)
1649 elif fpath.endswith('.sage'):
1650 if (attach and attach_debug_mode) or ((not attach) and
load_debug_mode):
/Users/SimonKing/SAGE/work/signal11/cachefunc_94107.py in <module>()
2588 sys.exit(255)
2589 quit_sage(verbose=False)
2590 if runner.failures > 254:
2591 sys.exit(254)
-> 2592 sys.exit(runner.failures)
SystemExit: 0
Type %exit or %quit to exit IPython (%Exit or %Quit do so
unconditionally).
sage:
}}}
So, up to here, it more or less looks normal. But when I press Ctrl-D to
leave the interactive session, I get:
{{{
Exiting Sage (CPU time 0m0.70s, Wall time 0m30.10s).
/scratch/sking/sage-5.4.beta0/spkg/bin/sage: line 336: 97357 Segmentation
fault sage-ipython "$@" -i
}}}
The "Exiting Sage ..." is printed at the beginning of sage.all.quit_sage.
Hence, it now seems that (again) leaving Sage is the problem.
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/715#comment:274>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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