#14098: zn_poly-0.9.p9 fails at least one its tests on power7
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Reporter: fbissey | Owner: drkirkby
Type: defect | Status: new
Priority: major | Milestone: sage-5.7
Component: porting | Resolution:
Keywords: | Work issues:
Report Upstream: N/A | Reviewers:
Authors: | Merged in:
Dependencies: | Stopgaps:
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Comment (by fbissey):
To continue on what you started Paul in
{{{
testcase_mpn_smp_kara (n=6624085371224828549)
}}}
n is supposed to be a size_t so I think we have a gross overflow somewhere
earlier. The value originates from here:
{{{
/*
Tests mpn_smp_kara for a range of n.
*/
int
test_mpn_smp_kara (int quick)
{
int success = 1;
size_t n;
ulong trial;
// first a dense range of small problems
for (n = 2; n <= 30 && success; n++)
for (trial = 0; trial < (quick ? 300 : 30000) && success; trial++)
success = success && testcase_mpn_smp_kara (n);
// now a few larger problems too
for (trial = 0; trial < (quick ? 100 : 3000) && success; trial++)
{
n = random_ulong (3 * ZNP_mpn_smp_kara_thresh) + 2; <======= n
generated here.
success = success && testcase_mpn_smp_kara (n);
}
return success;
}
}}}
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/14098#comment:5>
Sage <http://www.sagemath.org>
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