One of my interacts for class is segfaulting in 4.6, but worked fine in
4.5.2. The problem is illustrated below:
sage: V=(QQ^2).span_of_basis([[1,1]])
sage: v=V([1,1])
sage: x=sqrt(2)*v
sage: 3*x
------------------------------------------------------------
Unhandled SIGSEGV: A segmentation fault occurred in Sage.
This probably occurred because a *compiled* component
of Sage has a bug in it (typically accessing invalid memory)
or is not properly wrapped with _sig_on, _sig_off.
You might want to run Sage under gdb with 'sage -gdb' to debug this.
Sage will now terminate (sorry).
------------------------------------------------------------
I'm trying to track this down at
http://trac.sagemath.org/sage_trac/ticket/10250, and it seems to involve
pynac and the coercion system. Does anyone have alpha versions of 4.6
(or 4.5.3, for that matter) that they can test the above code in so we
can try to pinpoint what change caused the problem? The code above
doesn't work for my copy of 4.6alpha3, for example.
Thanks,
Jason
--
To post to this group, send an email to sage-devel@googlegroups.com
To unsubscribe from this group, send an email to
sage-devel+unsubscr...@googlegroups.com
For more options, visit this group at http://groups.google.com/group/sage-devel
URL: http://www.sagemath.org
