[Maxima-discuss] more about translate + sbcl bug, was: Fatal error

[Robert D. <rob...@gm...>]

On 2018-06-05, Robert Dodier <rob...@gm...> wrote:
> On 2018-06-04, Stavros Macrakis <mac...@al...> wrote:
>
>> Maxima 5.41.0a_dirty http://maxima.sourceforge.net
>> using Lisp SBCL 1.3.18
>
>> (%i1) load(drawdf);
>> (%o1)
>> E:/maxima-5.41.0a/bin/../share/maxima/5.41.0a_dirty/share/diffequations/\
>> drawdf.mac
>> (%i2) drawdf([y,-9*sin(x)-y/5], [x,-10,10], [y,-10,10], tstep=0.05,
>>               soln_arrows=true, point_size=0.5,
>>               points_at([0,0], [2*%pi,0], [-2*%pi,0]),
>>               field_degree='solns,
>>               saddles_at([%pi,0], [-%pi,0]));
>>
>> ÿ%
>> fatal error encountered in SBCL pid 2684(tid 0000000001356500):
>> %PRIMITIVE HALT called; the party is over.
>
> Some investigation shows the trouble is caused by calls to 'translate'.

For the record, I find that SBCL 1.3.13, 1.4.6, and 1.4.8 all show this
same behavior with the above example. Linux x86 + current Maxima from
Git.

best

Robert Dodier