[Numpy-tickets] [NumPy] #551: numpy.ndarray messed up after unpickling

[NumPy]

#551: numpy.ndarray messed up after unpickling
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 Reporter:  cotackst                   |        Owner:  somebody
     Type:  defect                     |       Status:  new     
 Priority:  normal                     |    Milestone:  1.0.5   
Component:  numpy.core                 |      Version:  1.0.1   
 Severity:  normal                     |   Resolution:          
 Keywords:  pickle, ndarray, segfault  |  
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Comment (by pv):

 I can reproduce this bug on Ubuntu 7.10 -shipped python2.5 and SSE2-Atlas
 3.6.0-20.6 (atlas3-sse2 package), and self-compiled Numpy 1.0.4.

 However, with Numpy compiled without Atlas, the bug is not present.

 With Numpy compiled with Atlas without processor-specific optimizations
 (atlas-base package), the bug is also not present.

 With Numpy compiled with SSE-Atlas (atlas3-sse package), the bug is also
 not present.

 So, this may be associated with some properties of SSE2-enabled Atlas,
 possibly the one shipped with Ubuntu/others. However, it is quite strange
 that this crash appears only with unpickled arrays --- the data pointer
 probably is valid as the array prints/copies fine, and the original and
 the unpickled arrays have the same strides.

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Ticket URL: <http://scipy.org/scipy/numpy/ticket/551#comment:9>
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