#4198: [with patch, positive review] matrix_cyclo_dense.pyx leaks in _get_unsafe
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Reporter: mabshoff | Owner: mabshoff
Type: defect | Status: closed
Priority: major | Milestone: sage-3.1.3
Component: memleak | Resolution: fixed
Keywords: |
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Comment (by mabshoff):
The valgrind trace was the following:
{{{
==19392== 8 bytes in 1 blocks are definitely lost in loss record 71 of
22,499
==19392== at 0x4A1BE1B: malloc (vg_replace_malloc.c:207)
==19392== by 0x6360947: __gmpz_init (in /scratch/mabshoff/release-
cycle/sage-3.1.3.alpha1/local/lib/libgmp.so.3.4.1)
==19392== by 0x19D0A675:
__pyx_f_4sage_6matrix_18matrix_cyclo_dense_18Matrix_cyclo_dense_get_unsafe(__pyx_obj_4sage_6matrix_18matrix_cyclo_dense_Matrix_cyclo_dense*,
long, long) (matrix_cyclo_dense.cpp:3773)
==19392== by 0x16397A16:
__pyx_pf_4sage_6matrix_7matrix1_6Matrix_dense_rows (matrix1.c:3933)
==19392== by 0x415832: PyObject_Call (abstract.c:1861)
==19392== by 0x47D750: PyEval_CallObjectWithKeywords (ceval.c:3442)
==19392== by 0x16392247: __pyx_pf_4sage_6matrix_7matrix1_6Matrix_rows
(matrix1.c:3366)
==19392== by 0x415832: PyObject_Call (abstract.c:1861)
==19392== by 0x164CEEE9:
__pyx_pf_4sage_6matrix_7matrix0_6Matrix_linear_combination_of_rows
(matrix0.c:10569)
}}}
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/4198#comment:4>
Sage <http://sagemath.org/>
Sage - Open Source Mathematical Software: Building the Car Instead of
Reinventing the Wheel
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