==465== Invalid free() / delete / delete[]
==465==    at 0x4A1B74A: free (vg_replace_malloc.c:320)
==465==    by 0x43FE9A: dict_dealloc (dictobject.c:847)
==465==    by 0x43FE9A: dict_dealloc (dictobject.c:847)
==465==    by 0x499E5B: _PyImport_Fini (import.c:229)
==465==    by 0x4A5D66: Py_Finalize (pythonrun.c:419)
==465==    by 0x4A58AA: handle_system_exit (pythonrun.c:1616)
==465==    by 0x4A5AA8: PyErr_PrintEx (pythonrun.c:1062)
==465==    by 0x4A62B6: PyRun_SimpleFileExFlags (pythonrun.c:976)
==465==    by 0x4120FF: Py_Main (main.c:523)
==465==    by 0x4FD94C9: (below main) (in /lib/libc-2.3.6.so)
==465==  Address 0x530de28 is 32 bytes inside a block of size 80
alloc'd
==465==    at 0x4A1BB35: malloc (vg_replace_malloc.c:207)
==465==    by 0x4B0079: _PyObject_GC_Malloc (gcmodule.c:1321)
==465==    by 0x454C29: PyType_GenericAlloc (typeobject.c:454)
==465==    by 0x97622E0:
__pyx_tp_new_4sage_9structure_7element_Element (element.c:22299)
==465==    by 0xAC9C9DA: __pyx_tp_new_4sage_5rings_7integer_Integer
(integer.c:19673)
==465==    by 0x458D92: type_call (typeobject.c:422)
==465==    by 0x415542: PyObject_Call (abstract.c:1860)
==465==    by 0x47C480: PyEval_CallObjectWithKeywords (ceval.c:3433)
==465==    by 0xAC978B3: initinteger (integer.c:20610)
==465==    by 0x49E17D: _PyImport_LoadDynamicModule (importdl.c:53)
==465==    by 0x49C08D: import_submodule (import.c:2394)
==465==    by 0x49C550: load_next (import.c:2214)

[mabshoff@localhost sage-2.8.14]$ ./sage -gdb
----------------------------------------------------------------------
| SAGE Version 2.8.14, Release Date: 2007-11-24                      |
| Type notebook() for the GUI, and license() for information.        |
----------------------------------------------------------------------
/tmp/Work/sage-2.8.14/local/bin/sage-gdb-pythonstartup
GNU gdb Red Hat Linux (6.6-15.fc7rh)
Copyright (C) 2006 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and you are
welcome to change it and/or distribute copies of it under certain conditions.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB.  Type "show warranty" for details.
This GDB was configured as "ppc-redhat-linux-gnu"...
Using host libthread_db library "/lib/libthread_db.so.1".
[Thread debugging using libthread_db enabled]
[New Thread 805394272 (LWP 28969)]
Python 2.5.1 (r251:54863, Nov 28 2007, 20:22:20)
[GCC 4.1.2 20070502 (Red Hat 4.1.2-12)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
[Detaching after fork from child process 28973. (Try `set detach-on-fork off'.)]

----------------------------------------------------------------------
| SAGE Version 2.8.14, Release Date: 2007-11-24                      |
| Type notebook() for the GUI, and license() for information.        |
----------------------------------------------------------------------
sage:
Exiting SAGE (CPU time 0m0.11s, Wall time 0m2.50s).
*** glibc detected *** /tmp/Work/sage-2.8.14/local/bin/python: munmap_chunk(): invalid pointer: 0x1063a200 ***
======= Backtrace: =========
/lib/libc.so.6(cfree+0x254)[0xfea3534]
/tmp/Work/sage-2.8.14/local/bin/python(PyObject_Free+0x10)[0x10053080]
/tmp/Work/sage-2.8.14/local/lib/python2.5/site-packages/sage/rings/integer.so[0xe961a88]
/tmp/Work/sage-2.8.14/local/bin/python[0x1004b79c]
/tmp/Work/sage-2.8.14/local/bin/python[0x1004b79c]
/tmp/Work/sage-2.8.14/local/bin/python(_PyImport_Fini+0x90)[0x100bafa0]
/tmp/Work/sage-2.8.14/local/bin/python(Py_Finalize+0x108)[0x100c9338]
/tmp/Work/sage-2.8.14/local/bin/python[0x100c8d54]
/tmp/Work/sage-2.8.14/local/bin/python(PyErr_PrintEx+0x204)[0x100c8fd4]
/tmp/Work/sage-2.8.14/local/bin/python(PyRun_SimpleFileExFlags+0x104)[0x100c9954]
/tmp/Work/sage-2.8.14/local/bin/python(Py_Main+0xc3c)[0x1000fb5c]
/tmp/Work/sage-2.8.14/local/bin/python(main+0x10)[0x1000ede0]
/lib/libc.so.6[0xfe3de0c]
/lib/libc.so.6[0xfe3e060]
======= Memory map: ========
00040000-00043000 r-xp 00000000 fd:00 2183945    /lib/libkeyutils-1.2.so
00043000-00052000 ---p 00003000 fd:00 2183945    /lib/libkeyutils-1.2.so
00052000-00053000 rw-p 00002000 fd:00 2183945    /lib/libkeyutils-1.2.so
00100000-00103000 r-xp 00100000 00:00 0          [vdso]
002e0000-002e2000 r-xp 00000000 fd:00 2184053    /lib/libutil-2.6.so
002e2000-002ff000 ---p 00002000 fd:00 2184053    /lib/libutil-2.6.so
002ff000-00300000 r--p 0000f000 fd:00 2184053    /lib/libutil-2.6.so
00300000-00301000 rw-p 00010000 fd:00 2184053    /lib/libutil-2.6.so
00310000-00324000 r-xp 00000000 fd:00 2184058    /lib/libgcc_s-4.1.2-20070503.so.1
00324000-00333000 ---p 00014000 fd:00 2184058    /lib/libgcc_s-4.1.2-20070503.so.1
00333000-00335000 rw-p 00013000 fd:00 2184058    /lib/libgcc_s-4.1.2-20070503.so.1
00340000-003e0000 r-xp 00000000 fd:00 1771804    /usr/lib/libkrb5.so.3.3
003e0000-003e3000 rw-p 000a0000 fd:00 1771804    /usr/lib/libkrb5.so.3.3
003f0000-003f9000 r-xp 00000000 fd:00 1773833    /usr/lib/libkrb5support.so.0.1
003f9000-00408000 ---p 00009000 fd:00 1773833    /usr/lib/libkrb5support.so.0.1
00408000-00409000 rw-p 00008000 fd:00 1773833    /usr/lib/libkrb5support.so.0.1
004a0000-005ed000 r-xp 00000000 fd:00 2186223    /lib/libcrypto.so.0.9.8b
005ed000-005f0000 ---p 0014d000 fd:00 2186223    /lib/libcrypto.so.0.9.8b
005f0000-00603000 rw-p 00150000 fd:00 2186223    /lib/libcrypto.so.0.9.8b
00603000-00606000 rw-p 00603000 00:00 0
006c0000-007d1000 r-xp 00000000 fd:00 1770129    /usr/lib/libstdc++.so.6.0.8
007d1000-007ec000 ---p 00111000 fd:00 1770129    /usr/lib/libstdc++.so.6.0.8
007ec000-007f0000 r--p 0011c000 fd:00 1770129    /usr/lib/libstdc++.so.6.0.8
007f0000-007f2000 rw-p 00120000 fd:00 1770129    /usr/lib/libstdc++.so.6.0.8
007f2000-007f7000 rw-p 007f2000 00:00 0
00880000-0089b000 r-xp 00000000 fd:00 2184057    /lib/libtinfo.so.5.6
0089b000-008aa000 ---p 0001b000 fd:00 2184057    /lib/libtinfo.so.5.6
008aa000-008ad000 rw-p 0001a000 fd:00 2184057    /lib/libtinfo.so.5.6
008ad000-008ae000 rw-p 008ad000 00:00 0
01000000-0104a000 r-xp 00000000 fd:00 228151     /lib/libssl.so.0.9.8b
0104a000-01059000 ---p 0004a000 fd:00 228151     /lib/libssl.so.0.9.8b
01059000-0105e000 rw-p 00049000 fd:00 228151     /lib/libssl.so.0.9.8b
01930000-01961000 r-xp 00000000 fd:00 1776164    /usr/lib/libgssapi_krb5.so.2.2
01961000-01970000 ---p 00031000 fd:00 1776164    /usr/lib/libgssapi_krb5.so.2.2
01970000-01972000 rw-p 00030000 fd:00 1776164    /usr/lib/libgssapi_krb5.so.2.2
01980000-01986000 r-xp 00000000 fd:00 164464     /lib/libcrypt-2.6.so
01986000-0199f000 ---p 00006000 fd:00 164464     /lib/libcrypt-2.6.so
0199f000-019a0000 r--p 0000f000 fd:00 164464     /lib/libcrypt-2.6.so
019a0000-019a1000 rw-p 00010000 fd:00 164464     /lib/libcrypt-2.6.so
019a1000-019c8000 rw-p 019a1000 00:00 0
0bbee000-0bbf9000 r-xp 00000000 fd:00 2054868    /tmp/Work/sage-2.8.14/devel/sage-main/build/sage/ext/interactive_constructors_c.so
0bbf9000-0bc08000 ---p 0000b000 fd:00 2054868    /tmp/Work/sage-2.8.14/devel/sage-main/build/sage/ext/interactive_constructors_c.so
0bc08000-0bc0b000 rw-p 0000a000 fd:00 2054868    /tmp/Work/sage-2.8.14/devel/sage-main/build/sage/ext/interactive_constructors_c.so
0bc1b000-0bc33000 r-xp 00000000 fd:00 2054887    /tmp/Work/sage-2.8.14/devel/sage-main/build/sage/gsl/probability_distribution.so
0bc33000-0bc42000 ---p 00018000 fd:00 2054887    /tmp/Work/sage-2.8.14/devel/sage-main/build/sage/gsl/probability_distribution.so
0bc42000-0bc45000 rw-p 00017000 fd:00 2054887    /tmp/Work/sage-2.8.14/devel/sage-main/build/sage/gsl/probability_distribution.so
0bc55000-0bc6a000 r-xp 00000000 fd:00 2054888    /tmp/Work/sage-2.8.14/devel/sage-main/build/sage/gsl/ode.so
0bc6a000-0bc79000 ---p 00015000 fd:00 2054888    /tmp/Work/sage-2.8.14/devel/sage-main/build/sage/gsl/ode.so
0bc79000-0bc7d000 rw-p 00014000 fd:00 2054888    /tmp/Work/sage-2.8.14/devel/sage-main/build/sage/gsl/ode.so
0bc8d000-0bc92000 r-xp 00000000 fd:00 2054890    /tmp/Work/sage-2.8.14/devel/sage-main/build/sage/gsl/gsl_array.so
0bc92000-0bca1000 ---p 00005000 fd:00 2054890    /tmp/Work/sage-2.8.14/devel/sage-main/build/sage/gsl/gsl_array.so
0bca1000-0bca2000 rw-p 00004000 fd:00 2054890    /tmp/Work/sage-2.8.14/devel/sage-main/build/sage/gsl/gsl_array.so
0bcb2000-0bcba000 r-xp 00000000 fd:00 2054879    /tmp/Work/sage-2.8.14/devel/sage-main/build/sage/gsl/dwt.so
0bcba000-0bcc9000 ---p 00008000 fd:00 2054879    /tmp/Work/sage-2.8.14/devel/sage-main/build/sage/gsl/dwt.so
0bcc9000-0bccb000 rw-p 00007000 fd:00 2054879    /tmp/Work/sage-2.8.14/devel/sage-main/build/sage/gsl/dwt.so
0bcdb000-0bce9000 r-xp 00000000 fd:00 2054876    /tmp/Work/sage-2.8.14/devel/sage-main/build/sage/gsl/fft.so
0bce9000-0bcf8000 ---p 0000e000 fd:00 2054876    /tmp/Work/sage-2.8.14/devel/sage-main/build/sage/gsl/fft.so
0bcf8000-0bcfa000 rw-p 0000d000 fd:00 2054876    /tmp/Work/sage-2.8.14/devel/sage-main/build/sage/gsl/fft.so
0bd0a000-0bd14000 r-xp 00000000 fd:00 2056191    /tmp/Work/sage-2.8.14/devel/sage-main/build/sage/combinat/expnums.so
0bd14000-0bd23000 ---p 0000a000 fd:00 2056191    /tmp/Work/sage-2.8.14/devel/sage-main/build/sage/combinat/expnums.so
0bd23000-0bd24000 rw-p 00009000 fd:00 2056191    /tmp/Work/sage-2.8.14/devel/sage-main/build/sage/combinat/expnums.so
0bd34000-0bd37000 r-xp 00000000 fd:00 1665673    /tmp/Work/sage-2.8.14/local/lib/python2.5/site-packages/twisted/protocols/_c_urlarg.so
0bd37000-0bd46000 ---p 00003000 fd:00 1665673    /tmp/Work/sage-2.8.14/local/lib/python2.5/site-packages/twisted/protocols/_c_urlarg.so
0bd46000-0bd47000 rw-p 00002000 fd:00 1665673    /tmp/Work/sage-2.8.14/local/lib/python2.5/site-packages/twisted/protocols/_c_urlarg.so
0bd57000-0bd5b000 r-xp 00000000 fd:00 1632710    /tmp/Work/sage-2.8.14/local/lib/python2.5/lib-dynload/_heapq.so
0bd5b000-0bd6a000 ---p 00004000 fd:00 1632710    /tmp/Work/sage-2.8.14/local/lib/python2.5/lib-dynload/_heapq.so
0bd6a000-0bd6c000 rw-p 00003000 fd:00 1632710    /tmp/Work/sage-2.8.14/local/lib/python2.5/lib-dynload/_heapq.so
0bd7c000-0bd81000 r-xp 00000000 fd:00 1632726    /tmp/Work/sage-2.8.
Program received signal SIGABRT, Aborted.
[Switching to Thread 805394272 (LWP 28969)]
0x0fe55f10 in raise () from /lib/libc.so.6
(gdb) bt
#0  0x0fe55f10 in raise () from /lib/libc.so.6
#1  0x0fe57c94 in abort () from /lib/libc.so.6
#2  0x0fe957a4 in __libc_message () from /lib/libc.so.6
#3  0x0fea3534 in free () from /lib/libc.so.6
#4  0x10053080 in PyObject_Free (p=0x0) at Objects/obmalloc.c:1203
#5  0x0e961a88 in __pyx_f_4sage_5rings_7integer_fast_tp_dealloc (__pyx_v_o=0x1063a200) at sage/rings/integer.c:18900
#6  0x1004b79c in dict_dealloc (mp=0x10696cd0) at Objects/dictobject.c:847
#7  0x1004b79c in dict_dealloc (mp=0x10166948) at Objects/dictobject.c:847
#8  0x100bafa0 in _PyImport_Fini () at Python/import.c:229
#9  0x100c9338 in Py_Finalize () at Python/pythonrun.c:419
#10 0x100c8d54 in handle_system_exit () at Python/pythonrun.c:1616
#11 0x100c8fd4 in PyErr_PrintEx (set_sys_last_vars=1) at Python/pythonrun.c:1062
#12 0x100c9954 in PyRun_SimpleFileExFlags (fp=0x0,
    filename=0x7f89ec47 "/tmp/Work/sage-2.8.14/local/bin/sage-gdb-pythonstartup", closeit=0, flags=0x7f89dbb8)
    at Python/pythonrun.c:976
#13 0x1000fb5c in Py_Main (argc=<value optimized out>, argv=0x7f89df04) at Modules/main.c:134
#14 0x1000ede0 in main (argc=0, argv=0x7129) at ./Modules/python.c:23
(gdb) quit