On Nov 11, 8:20 am, Jason Grout <jason-s...@creativetrax.com> wrote: > 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 > athttp://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.
I have 4.5.3 on both a Mac (OS X 10.6) and on sage.math, and on both, your example works fine. I have 4.6.alpha1 on the same Mac, and I get the segfault. (I also have 4.6.alpha2 on an OpenSolaris machine, and that also segfaults.) -- John -- 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
