[Scipy-tickets] [SciPy] #1472: sparse.isolve solvers segfault in test suite

SciPy Trac scipy-tickets@scipy....
Thu Jul 7 13:17:28 CDT 2011


#1472: sparse.isolve solvers segfault in test suite
---------------------------------+------------------------------------------
 Reporter:  rgommers             |       Owner:  pv    
     Type:  defect               |      Status:  new   
 Priority:  high                 |   Milestone:  0.10.0
Component:  scipy.sparse.linalg  |     Version:  0.9.0 
 Keywords:  gmres                |  
---------------------------------+------------------------------------------

Comment(by pv):

 Thanks for the GDB traceback. However, it still does not tell where the
 crash occurred -- this apparently would need stepping through the program
 with 'n' or 's'.

 However, I guess this bug is connected to the failures observed on
 Gfortran 4.6 -- getting funny things with 4.2 is also expected. Works on
 4.4 - 4.5 though, but probably there's something rotten in the code to
 begin with to cause such compiler-dependence. Locating this with gdb is
 probably not so easy.

 (Tracing this bug this way via Trac seems a bit inefficient. I don't have
 a OSX at hand, so I can't test this directly. I can try to see if I manage
 to get it with Gcc 4.2 (and 4.6) on Linux.)

-- 
Ticket URL: <http://projects.scipy.org/scipy/ticket/1472#comment:17>
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