On   04/29/10 - 19:18:03, François Bissey wrote:
> > Hello,
> >
> > Has anyone experienced the following after closing a worksheet and  
> then
> > the notebook? I believe I've seen something similar on another
> > (sage-4.4) occasion unrelated to the notebook.
> >
> If you only saw that in sage, that could point to twisted-web2 which  
> is a real
> piece of garbage abandoned upstream but that sage-notebook doesn't  
> want
> to let go. If it is not related to the notebook at all, then that's a  
> problem
> that could creep into other non-sage apps in my opinion.
> Did you use anything special in that worksheet? maxima, etc...?
> 
> Francois
> 
Hi François,

There was only plotting in the worksheet. I'm thinking it's something  
other than the notebook. I ran the test suite on sage-4.4 and there are  
lots of these backtrace dumps with

	/usr/bin/python2.6: corrupted double-linked list

issues. I reverted back to 4.3.5 in an attempt to get "sane" test  
results. I'm unable to get the same test results; although there are no  
backtrace dumps! There has been several upgrades (flint, fplll,  
sqlalchemy, maxima, ..., etc) since previous tests and, as much as  
possible, I've reverted back to previous versions but still the tests  
don't match. The first failing test (sage-4.3.5) that passed previously  
is

sage -t -force_lib "devel/sage/doc/en/tutorial/tour_advanced.rst"
**********************************************************************
File "/opt/sage/devel/sage/doc/en/tutorial/tour_advanced.rst", line 358:
     sage: G.gens()
Expected:
     (Dirichlet character modulo 20 of conductor 4 mapping 11 |--> -1,  
17 |--> 1,
     Dirichlet character modulo 20 of conductor 5 mapping 11 |--> 1, 17  
|--> i)
Got:
     ([-1, 1], [1, i])
**********************************************************************

I'd be interested in your 4.4 test results. Maybe there's something  
I've missed.

Steve