#10578: Coercion problem for vectors from polynomial rings over GF(2)
------------------------------+---------------------------------------------
   Reporter:  jonhanke        |       Owner:  jason, was                        
    
       Type:  defect          |      Status:  new                               
    
   Priority:  minor           |   Milestone:  sage-4.6.1                        
    
  Component:  linear algebra  |    Keywords:  GF(2), coerce, polynomial ring, 
vector
     Author:  Jonathan Hanke  |    Upstream:  N/A                               
    
   Reviewer:                  |      Merged:                                    
    
Work_issues:                  |  
------------------------------+---------------------------------------------
 This causes a segfault in Sage-4.6:

 {{{
 sage: F = GF(2)
 sage: PR = PolynomialRing(F, 'y')
 sage:         y = PR.gen()
 sage: v1 = vector([PR(F.random_element())  for i in range(4)])
 sage: v1
 (0, 0, 0, 0)
 sage: vector(F, v1)


 ------------------------------------------------------------
 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).
 ------------------------------------------------------------
 }}}

-- 
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/10578>
Sage <http://www.sagemath.org>
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