#10833: Unhandled SIGSEGV on large expand of iterated polynomial
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Reporter: katestange | Owner: AlexGhitza
Type: defect | Status: needs_info
Priority: minor | Milestone: sage-4.6.2
Component: algebra | Keywords: expand, polynomial, polynomial ring
Author: | Upstream: N/A
Reviewer: | Merged:
Work_issues: |
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Comment(by jpflori):
I tested on sage 4.6.1 (debian in a vm) and got similar segfaults (SIGSEGV
and SIGBUS, from 6).
Installing the fixed pynac from #9880 seems to fix the problem (tested
till 9).
I put the patched spkg here (http://perso.telecom-
paristech.fr/~flori/pynac-0.2.1-patched.spkg) if someone else wants to try
it.
It ran until `expand(iterkate(9)) on sage 4.6.2.rc0 (on debian, real
machine, intel quad core smthg), with 10 it ate too much memory.`
`So I guess it is the same (kind of) problem as in #9880 (so it should be
marked as duplicate).`
The bug stated there "disappeared" with 4.6.1, that one seem to disappear
with 4.6.2 but they are kind of random and other bug of this kind could
still appear with new versions.
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/10833#comment:5>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
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