[Numpy-discussion] Seg. fault when running tests

Charles R Harris charlesr.harris@gmail....
Sat Jun 15 15:33:23 CDT 2013


On Sat, Jun 15, 2013 at 2:26 PM, Charles R Harris <charlesr.harris@gmail.com
> wrote:

>
>
> On Sat, Jun 15, 2013 at 2:23 PM, Warren Weckesser <
> warren.weckesser@gmail.com> wrote:
>
>>
>> On Sat, Jun 15, 2013 at 4:03 PM, Julian Taylor <
>> jtaylor.debian@googlemail.com> wrote:
>>
>>> On 15.06.2013 21:57, Warren Weckesser wrote:
>>> >
>>> > On Sat, Jun 15, 2013 at 3:15 PM, Julian Taylor
>>>
>>> >     @warren, can you please bisect the commit causing this?
>>> >
>>> >
>>> >
>>> > Here's the culprit:
>>> >
>>> > aef286debfd11a62f1c337dea55624cee7fd4d9e is the first bad commit
>>> > commit aef286debfd11a62f1c337dea55624cee7fd4d9e
>>> > Author: Julian Taylor <jtaylor.debian@googlemail.com
>>> > <mailto:jtaylor.debian@googlemail.com>>
>>> > Date:   Mon Jun 10 19:38:58 2013 +0200
>>> >
>>> >     ENH: enable unaligned loads on x86
>>> >
>>> >     x86 can handle unaligned load and there is no hand vectorized code
>>> in
>>> >     this file. It would be a serious compiler bug if it adds
>>> vectorization
>>> >     without checking for alignment.
>>> >     Enables fast complex128 copies which are unaligned on 32 bit gcc
>>> unless
>>> >     compiled with -malign-double.
>>> >
>>> > :040000 040000 d0948d1e1d942d41d50ce9e57bdc430db9a16f9e
>>> > 45a48f383353857b8d0dd24e542c7ab6f137448c M  numpy
>>> >
>>> > Link:
>>> >
>>> https://github.com/numpy/numpy/commit/aef286debfd11a62f1c337dea55624cee7fd4d9e
>>> >
>>>
>>> Interesting, possibly there is some inconsistencies in the macros in
>>> this file.
>>> But I don't understand why I can't reproduce it.
>>> Does it happen with python 3.2 too?
>>>
>>
>>
>> Yes, it happens with 3.3.2, 3.3.1, and 3.2.5.
>>
>
> Also on 2.7. The -O3 flag seems to cause the problem.
>
>
But I see it on test_3d_shaped_dtype.

Chuck
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