#13364: Upgrade Maxima to 5.29.1
-------------------------------------+--------------------------------------
       Reporter:  kcrisman           |         Owner:  tbd                      
                              
           Type:  enhancement        |        Status:  new                      
                              
       Priority:  major              |     Milestone:  sage-5.6                 
                              
      Component:  packages           |    Resolution:                           
                              
       Keywords:  maxima spkg        |   Work issues:  fix doctests, build with 
latest ECL, fix `spkg-install`
Report Upstream:  N/A                |     Reviewers:  Karl-Dieter Crisman, 
François Bissey, Leif Leonhardy   
        Authors:  Jean-Pierre Flori  |     Merged in:                           
                              
   Dependencies:  #13324             |      Stopgaps:                           
                              
-------------------------------------+--------------------------------------

Comment (by leif):

 Replying to [comment:32 leif]:
 > Replying to [comment:17 fbissey]:
 > > I have a nasty
 > > {{{
 > > sage -t -long -verbose "devel/sage-
 main/sage/symbolic/integration/integral.py" # Killed/crashed
 > > }}}
 > > Probably ecl/maxima rather than pure maxima it goes in a panic
 > > {{{
 > > ;;;
 > > ;;; Stack overflow.
 > > ;;; Jumping to the outermost toplevel prompt
 > > ;;;
 > >
 > > }}}
 > > for quite a bit before getting killed.
 >
 > On Ubuntu 10.04.4 x86 (Pentium4; FSF GCC 4.7.2, with `-march=native` and
 `-O3`, FWIW) I get slightly more than 23,000 instances (exact number
 varies) of
 > {{{
 > ;;;
 > ;;; Detected access to protected memory, also kwown as 'bus or
 segmentation fault'.
 > ;;; Jumping to the outermost toplevel prompt
 > ;;;
 > }}}
 > and finally
 > {{{
 > Segmentation fault
 >
 >        [56.5 s]
 >
 > ...
 >
 > The following tests failed:
 >
 >       sage -t --long -force_lib
 devel/sage/sage/symbolic/integration/integral.py # 0 doctests failed
 > ----------------------------------------------------------------------
 > Total time for all tests: 66.3 seconds
 > }}}
 > (with `./sage -tp 1 --long ...`; with `make ptestlong`, the test was
 said to have timed out).

 The offending test seems to be
 {{{
 ...

 Trying:
     f = abs(sin(x))###line 653:_sage_    >>> f = abs(sin(x))
 Expecting nothing
 ok
 Trying:
     integrate(f, x, Integer(0), Integer(2)*pi)  # long time (4s on
 sage.math, 2012)###line 654:_sage_    >>> integrate(f, x, 0, 2*pi)  # long
 time (4s on sage.math, 2012)
 Expecting:
     integrate(abs(sin(x)), x, 0, 2*pi)
 ;;;
 ;;; Detected access to protected memory, also kwown as 'bus or
 segmentation fault'.
 ;;; Jumping to the outermost toplevel prompt
 ;;;

 ...
 }}}
 (provided the output is in sync, which is not always the case with
 `-verbose`).

-- 
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/13364#comment:34>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica, 
and MATLAB

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