#12756: interrupt.pyx test: flush buffers before fork()
----------------------------------+-----------------------------------------
       Reporter:  jdemeyer        |         Owner:  mvngu   
           Type:  defect          |        Status:  new     
       Priority:  minor           |     Milestone:  sage-5.0
      Component:  doctest         |    Resolution:          
       Keywords:                  |   Work issues:          
Report Upstream:  N/A             |     Reviewers:          
        Authors:  Jeroen Demeyer  |     Merged in:          
   Dependencies:                  |      Stopgaps:          
----------------------------------+-----------------------------------------
Changes (by {'newvalue': u'Jeroen Demeyer', 'oldvalue': ''}):

  * priority:  major => minor
  * author:  => Jeroen Demeyer


Old description:



New description:

 Verbose output may look like:
 {{{
 Trying:
     test_interrupt_bomb()  # long time (1200 + 5*p + 10*n
 milliseconds)###line 584:_sage_    >>> test_interrupt_bomb()  # long time
 (1200 + 5*p + 10*n milliseconds)
 Expecting:
     Received ... interrupts
 b()  # long time (1200 + 5*p + 10*n milliseconds)###line 584:_sage_    >>>
 test_interrupt_bomb()  # long time (1200 + 5*p + 10*n milliseconds)
 Expecting:
     Received ... interrupts
 b()  # long time (1200 + 5*p + 10*n milliseconds)###line 584:_sage_    >>>
 test_interrupt_bomb()  # long time (1200 + 5*p + 10*n milliseconds)
 Expecting:
     Received ... interrupts
 b()  # long time (1200 + 5*p + 10*n milliseconds)###line 584:_sage_    >>>
 test_interrupt_bomb()  # long time (1200 + 5*p + 10*n milliseconds)
 Expecting:
     Received ... interrupts
 b()  # long time (1200 + 5*p + 10*n milliseconds)###line 584:_sage_    >>>
 test_interrupt_bomb()  # long time (1200 + 5*p + 10*n milliseconds)
 Expecting:
     Received ... interrupts
 b()  # long time (1200 + 5*p + 10*n milliseconds)###line 584:_sage_    >>>
 test_interrupt_bomb()  # long time (1200 + 5*p + 10*n milliseconds)
 Expecting:
     Received ... interrupts
 b()  # long time (1200 + 5*p + 10*n milliseconds)###line 584:_sage_    >>>
 test_interrupt_bomb()  # long time (1200 + 5*p + 10*n milliseconds)
 Expecting:
     Received ... interrupts
 b()  # long time (1200 + 5*p + 10*n milliseconds)###line 584:_sage_    >>>
 test_interrupt_bomb()  # long time (1200 + 5*p + 10*n milliseconds)
 }}}
 This is due to fork(2)ing with unflushed buffers.

--

-- 
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/12756#comment:1>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica, 
and MATLAB

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