#7773: Test failures with Fedora 12 on intel i7 860 processor
----------------------+-----------------------------------------------------
Reporter: jsp | Owner: GeorgSWeber
Type: defect | Status: new
Priority: minor | Milestone: sage-4.3.1
Component: build | Keywords:
Work_issues: | Author:
Upstream: N/A | Reviewer:
Merged: |
----------------------+-----------------------------------------------------
Description changed by jsp:
Old description:
> On this machine I got memory errors, some of wich are reported by
> glibc-2.11 as double free:
>
> *** glibc detected *** python: double free or corruption (fasttop):
>
> {{{
> sage -t devel/sage/sage/groups/generic.py # Segfault
> sage -t devel/sage/sage/matrix/matrix_space.py # Segfault
> sage -t devel/sage/sage/matrix/matrix_sparse.pyx # Segfault
> sage -t devel/sage/sage/matrix/matrix2.pyx # Segfault
> sage -t devel/sage/sage/schemes/elliptic_curves/ell_point.py #
> Segfault
> sage -t
> devel/sage/sage/schemes/elliptic_curves/ell_finite_field.py # Segfault
> [snipped]
> }}}
>
> Valgrind to the rescue! I made a new optional spkg:
> [http://trac.sagemath.org/sage_trac/ticket/7766]
>
> Rebuild sage-4.3 with SAGE_VALGRIND="yes", installed valgrind-3.6.0.svn
> with the help of
> [http://wiki.sagemath.org/ValgrindingSage]
>
> ./sage -t -valgrind devel/sage/sage/matrix/matrix_sparse.pyx
>
> Some results:
>
> {{{
> ==8933== Invalid free() / delete / delete[]
> ==8933== at 0x4A04D72: free (vg_replace_malloc.c:325)
> ==8933== by 0xE2F6A53: __pyx_f_4sage_5rings_6memory_pymem_free
> (memory.c:1993)
> ==8933== by 0xE716DBC: randclear_lc (in
> /home/jaap/downloads/sage-4.3/local/lib/libgmp.so.3.4.6)
> ==8933== by 0x20D1B78F: gmp_randclass::~gmp_randclass() (gmpxx.h:3248)
> ==8933== by 0x3D2D635B71: exit (in /lib64/libc-2.11.so)
> ==8933== by 0x4BA729: handle_system_exit (pythonrun.c:1716)
> ==8933== by 0x4BA944: PyErr_PrintEx (pythonrun.c:1126)
> ==8933== by 0x4BB68F: PyRun_SimpleFileExFlags (pythonrun.c:935)
> ==8933== by 0x413CAE: Py_Main (main.c:599)
> ==8933== by 0x3D2D61EB1C: (below main) (in /lib64/libc-2.11.so)
> ==8933== Address 0x347fd730 is 0 bytes inside a block of size 8 free'd
> ==8933== at 0x4A04D72: free (vg_replace_malloc.c:325)
> ==8933== by 0xE2F6A53: __pyx_f_4sage_5rings_6memory_pymem_free
> (memory.c:1993)
> ==8933== by 0xE716DBC: randclear_lc (in
> /home/jaap/downloads/sage-4.3/local/lib/libgmp.so.3.4.6)
> ==8933== by 0x3D2D635B71: exit (in /lib64/libc-2.11.so)
> ==8933== by 0x4BA729: handle_system_exit (pythonrun.c:1716)
> ==8933== by 0x4BA944: PyErr_PrintEx (pythonrun.c:1126)
> ==8933== by 0x4BB68F: PyRun_SimpleFileExFlags (pythonrun.c:935)
> ==8933== by 0x413CAE: Py_Main (main.c:599)
> ==8933== by 0x3D2D61EB1C: (below main) (in /lib64/libc-2.11.so)
>
> }}}
>
> The complete report can be found on my homepage on sage.math
> (i'll put a link here as soon sage.math is up again)
> valgrind_memcheck_test_matrix_sparse.bz2
>
> Jaap
New description:
On this machine I got memory errors, some of wich are reported by
glibc-2.11 as double free:
*** glibc detected *** python: double free or corruption (fasttop):
{{{
sage -t devel/sage/sage/groups/generic.py # Segfault
sage -t devel/sage/sage/matrix/matrix_space.py # Segfault
sage -t devel/sage/sage/matrix/matrix_sparse.pyx # Segfault
sage -t devel/sage/sage/matrix/matrix2.pyx # Segfault
sage -t devel/sage/sage/schemes/elliptic_curves/ell_point.py #
Segfault
sage -t
devel/sage/sage/schemes/elliptic_curves/ell_finite_field.py # Segfault
[snipped]
}}}
Valgrind to the rescue! I made a new optional spkg:
[http://trac.sagemath.org/sage_trac/ticket/7766]
Rebuild sage-4.3 with SAGE_VALGRIND="yes", installed valgrind-3.6.0.svn
with the help of
[http://wiki.sagemath.org/ValgrindingSage]
./sage -t -valgrind devel/sage/sage/matrix/matrix_sparse.pyx
Some results:
{{{
==8933== Invalid free() / delete / delete[]
==8933== at 0x4A04D72: free (vg_replace_malloc.c:325)
==8933== by 0xE2F6A53: __pyx_f_4sage_5rings_6memory_pymem_free
(memory.c:1993)
==8933== by 0xE716DBC: randclear_lc (in
/home/jaap/downloads/sage-4.3/local/lib/libgmp.so.3.4.6)
==8933== by 0x20D1B78F: gmp_randclass::~gmp_randclass() (gmpxx.h:3248)
==8933== by 0x3D2D635B71: exit (in /lib64/libc-2.11.so)
==8933== by 0x4BA729: handle_system_exit (pythonrun.c:1716)
==8933== by 0x4BA944: PyErr_PrintEx (pythonrun.c:1126)
==8933== by 0x4BB68F: PyRun_SimpleFileExFlags (pythonrun.c:935)
==8933== by 0x413CAE: Py_Main (main.c:599)
==8933== by 0x3D2D61EB1C: (below main) (in /lib64/libc-2.11.so)
==8933== Address 0x347fd730 is 0 bytes inside a block of size 8 free'd
==8933== at 0x4A04D72: free (vg_replace_malloc.c:325)
==8933== by 0xE2F6A53: __pyx_f_4sage_5rings_6memory_pymem_free
(memory.c:1993)
==8933== by 0xE716DBC: randclear_lc (in
/home/jaap/downloads/sage-4.3/local/lib/libgmp.so.3.4.6)
==8933== by 0x3D2D635B71: exit (in /lib64/libc-2.11.so)
==8933== by 0x4BA729: handle_system_exit (pythonrun.c:1716)
==8933== by 0x4BA944: PyErr_PrintEx (pythonrun.c:1126)
==8933== by 0x4BB68F: PyRun_SimpleFileExFlags (pythonrun.c:935)
==8933== by 0x413CAE: Py_Main (main.c:599)
==8933== by 0x3D2D61EB1C: (below main) (in /lib64/libc-2.11.so)
}}}
The complete report can be found on my homepage on sage.math
(i'll put a link here as soon sage.math is up again)
valgrind_memcheck_test_matrix_sparse.bz2
It's here:
[http://sage.math.washington.edu/home/jsp/valgrind_memcheck_test_matrix_sparse.bz2]
Jaap
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/7773#comment:1>
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