#13864: Configure Python with pydebug when SAGE_DEBUG is set
----------------------------------------------------------------------------------------------------------+
Reporter: jpflori
| Owner: jason
Type: task
| Status: needs_work
Priority: major
| Milestone: sage-pending
Component: misc
| Resolution:
Keywords: python spkg
| Work issues: make sure Sage builds and starts
Report Upstream: N/A
| Reviewers: Volker Braun
Authors: Jean-Pierre Flori
| Merged in:
Dependencies: #10352, #13832, #13865, #13867, #13868, #13876, #13878,
#13882, #13883, #13889, #13896 | Stopgaps:
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Old description:
> Instructions for getting a debug version of Python:
>
> * Download and untar sage-5.6.beta1
> * Copy the Cython spkg from #13896 to spkg/standard
> * Copy the Python spkg from #13867 to spkg/standard
> * Copy the Singular spkg from #13876 to spkg/standard.
> * Copy the ZODB spkg from #10352 to spkg/standard
> * Run
> {{{
> export SAGE_DEBUG=yes
> make
> }}}
> and wait.
> * Apply the patches from #13868, #13880, #13882 and #13883 to the Sage
> library
> * Run `sage -br`
>
> This gives you a Sage version that starts up, but some doctests segfault.
> Probably because we just found some bugs ;-)
New description:
Instructions for getting a debug version of Python:
* Download and untar sage-5.6.beta1
* Copy the Cython spkg from #13896 to spkg/standard
* Copy the Python spkg from #13867 to spkg/standard
* Copy the Singular spkg from #13876 to spkg/standard.
* Copy the ZODB spkg from #10352 to spkg/standard
* Run
{{{
export SAGE_DEBUG=yes
make
}}}
and wait. At the end, Sage will die in a SIGABRT during "Testing
startup".
* Apply the patches from #13868, #13880, #13882 and #13883 to the Sage
library
* Run `sage -br`
This gives you a Sage version that starts up, but some doctests segfault.
Probably because we just found some bugs ;-)
--
Comment (by SimonKing):
Replying to [comment:113 SimonKing]:
> Replying to [comment:112 vbraun]:
> > I still get the crash in "testing startup". In fact without #13868 its
pretty obvious that you must crash as soon as an integer from the free
pool is being collected. You need to use integers for a bit to
create->dealloc to pool->alloc from pool->dealloc but for me that happens
during startup already.
>
> I am now rebuilding on bsd.math from scratch, were I took care to remove
"old" (version-wise, not timestamp-wise) spkgs. Let's see what happens.
Yep, I get SIGABRT now. Good.
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/13864#comment:115>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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