#9678: Rewrite interrupt handling
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Reporter: jdemeyer | Owner: jdemeyer
Type: task | Status: positive_review
Priority: blocker | Milestone: sage-4.7
Component: c_lib | Keywords: interrupt, error, c, cython
Author: Jeroen Demeyer | Upstream: N/A
Reviewer: Volker Braun | Merged:
Work_issues: |
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Comment(by vbraun):
After many more rebuilds I found the problem: On i386 (and only i386) the
Parma Polyhedra library (PPL, #10039) tests if SSE is available. It does
this during the library initialization by installing a SIGILL handler and
then issuing SSE instructions. It then resets the handler to
`signal(SIGILL, SIG_DFL)`. Clearly, this deactivates Sage's SIGILL
handler.
Since we don't use PPL's floating point arithmetics I'll make sure to
configure it in a way that it does not test for SSE availability.
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/9678#comment:40>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
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