Confirmation :
$ skencil
*** glibc detected *** /usr/bin/python: free(): invalid pointer: 0xb7dcce18 *** ======= Backtrace: ========= /lib/tls/i686/cmov/libc.so.6[0xb7e747cd] /lib/tls/i686/cmov/libc.so.6(cfree+0x90)[0xb7e77e30] /usr/lib/skencil/Sketch/../Lib/paxmodule.so[0xb7afb984] /usr/bin/python[0x8110e6a] /usr/bin/python(PyEval_EvalFrameEx+0x6150)[0x80c8f80] /usr/bin/python(PyEval_EvalFrameEx+0x6135)[0x80c8f65] /usr/bin/python(PyEval_EvalFrameEx+0x6135)[0x80c8f65] /usr/bin/python(PyEval_EvalCodeEx+0x775)[0x80c9d65] /usr/bin/python(PyEval_EvalFrameEx+0x53f9)[0x80c8229] /usr/bin/python(PyEval_EvalCodeEx+0x775)[0x80c9d65] /usr/bin/python[0x8112096] /usr/bin/python(PyObject_Call+0x27)[0x805c787] /usr/bin/python[0x80628e4] /usr/bin/python(PyObject_Call+0x27)[0x805c787] /usr/bin/python(PyEval_EvalFrameEx+0x2031)[0x80c4e61] /usr/bin/python(PyEval_EvalCodeEx+0x775)[0x80c9d65] /usr/bin/python[0x8112096] /usr/bin/python(PyObject_Call+0x27)[0x805c787] /usr/bin/python[0x80628e4] /usr/bin/python(PyObject_Call+0x27)[0x805c787] /usr/bin/python(PyEval_CallObjectWithKeywords+0x6c)[0x80c1f7c] /usr/bin/python(PyInstance_New+0x71)[0x8066031] /usr/bin/python(PyObject_Call+0x27)[0x805c787] /usr/bin/python(PyEval_EvalFrameEx+0x2031)[0x80c4e61] /usr/bin/python(PyEval_EvalFrameEx+0x6135)[0x80c8f65] /usr/bin/python(PyEval_EvalCodeEx+0x775)[0x80c9d65] /usr/bin/python(PyEval_EvalCode+0x57)[0x80c9dd7] /usr/bin/python(PyRun_FileExFlags+0xf8)[0x80e91d8] /usr/bin/python(PyRun_SimpleFileExFlags+0x187)[0x80e9467] /usr/bin/python(Py_Main+0x9c0)[0x8059330] /usr/bin/python(main+0x22)[0x8058862] /lib/tls/i686/cmov/libc.so.6(__libc_start_main+0xdc)[0xb7e22ebc] /usr/bin/python[0x80587b1] ======= Memory map: ======== 08048000-0813f000 r-xp 00000000 03:41 754480 /usr/bin/python2.5 0813f000-08164000 rw-p 000f6000 03:41 754480 /usr/bin/python2.5 08164000-084a2000 rw-p 08164000 00:00 0 [heap] b6e00000-b6e21000 rw-p b6e00000 00:00 0 b6e21000-b6f00000 ---p b6e21000 00:00 0 b6f4f000-b6f5a000 r-xp 00000000 03:41 4980977 /lib/libgcc_s.so.1 b6f5a000-b6f5b000 rw-p 0000a000 03:41 4980977 /lib/libgcc_s.so.1 b6f6b000-b6f6d000 r-xp 00000000 03:41 1884368 /usr/lib/python2.5/lib-dynload/fcntl.so b6f6d000-b6f6e000 rw-p 00002000 03:41 1884368 /usr/lib/python2.5/lib-dynload/fcntl.so b6f6e000-b6f70000 r-xp 00000000 03:41 1884287 /usr/lib/python2.5/lib-dynload/_random.so b6f70000-b6f71000 rw-p 00002000 03:41 1884287 /usr/lib/python2.5/lib-dynload/_random.so b6f71000-b6f75000 r-xp 00000000 03:41 1884367 /usr/lib/python2.5/lib-dynload/binascii.so b6f75000-b6f76000 rw-p 00003000 03:41 1884367 /usr/lib/python2.5/lib-dynload/binascii.so b6f76000-b6f77000 ---p b6f76000 00:00 0 b6f77000-b7777000 rw-p b6f77000 00:00 0 b7777000-b777d000 r-xp 00000000 03:41 2361282 /usr/lib/skencil/Lib/paxtkinter.so b777d000-b777e000 rw-p 00005000 03:41 2361282 /usr/lib/skencil/Lib/paxtkinter.so b777e000-b7781000 r-xp 00000000 03:41 2361029 /usr/lib/skencil/Sketch/Modules/pstokenize.so b7781000-b7782000 rw-p 00002000 03:41 2361029 /usr/lib/skencil/Sketch/Modules/pstokenize.so b7782000-b7783000 r-xp 00000000 03:41 2361027 /usr/lib/skencil/Sketch/Modules/_type1module.so b7783000-b7784000 rw-p 00000000 03:41 2361027 /usr/lib/skencil/Sketch/Modules/_type1module.so b7784000-b778a000 r-xp 00000000 03:41 2361285 /usr/lib/skencil/Lib/streamfilter.so b778a000-b778b000 rw-p 00005000 03:41 2361285 /usr/lib/skencil/Lib/streamfilter.so b778b000-b77cc000 rw-p b778b000 00:00 0 b77cc000-b77cf000 r-xp 00000000 03:41 1884451 /usr/lib/python2.5/lib-dynload/time.so b77cf000-b77d1000 rw-p 00002000 03:41 1884451 /usr/lib/python2.5/lib-dynload/time.so b77d1000-b78b4000 rw-p b77d1000 00:00 0 b78b4000-b78b5000 r-xp 00000000 03:41 2097642 /usr/lib/gconv/ISO8859-1.so b78b5000-b78b7000 rw-p 00000000 03:41 2097642 /usr/lib/gconv/ISO8859-1.so b78b7000-b78c0000 r--p 00000000 03:41 2361264 /usr/lib/skencil/Resources/Messages/fr/LC_MESSAGES/skencil.mo b78c0000-b78d3000 r-xp 00000000 03:41 756284 /usr/lib/libz.so.1.2.3 b78d3000-b78d4000 rw-p 00012000 03:41 756284 /usr/lib/libz.so.1.2.3 b78d4000-b78f2000 r-xp 00000000 03:41 761784 /usr/lib/libjpeg.so.62.0.0 b78f2000-b78f3000 rw-p 0001d000 03:41 761784 /usr/lib/libjpeg.so.62.0.0 b78f3000-b7925000 r-xp 00000000 03:41 1950707 /usr/lib/python2.5/site-packages/PIL/_imaging.so b7925000-b7928000 rw-p 00032000 03:41 1950707 /usr/lib/python2.5/site-packages/PIL/_imaging.so b7928000-b7930000 rw-p b7928000 00:00 0 b7930000-b794c000 r--p 00000000 03:41 1081808 /usr/share/locale-langpack/fr/LC_MESSAGES/libc.mo b794c000-b7959000 r-xp 00000000 03:41 756981 /usr/lib/libXext.so.6.4.0 b7959000-b795a000 rw-p 0000d000 03:41 756981 /usr/lib/libXext.so.6.4.0 b795a000-b7a09000 r-xp 00000000 03:41 756108 /usr/lib/libtcl8.4.so.0 b7a09000-b7a0f000 rw-p 000af000 03:41 756108 /usr/lib/libtcl8.4.so.0 b7a0f000-b7ae2000 r-xp 00000000 03:41 756460 /usr/lib/libtk8.4.so.0 b7ae2000-b7aee000 rw-p 000d3000 03:41 756460 /usr/lib/libtk8.4.so.0 b7aee000-b7aff000 r-xp 00000000 03:41 2361281 /usr/lib/skencil/Lib/paxmodule.so b7aff000-b7b01000 rw-p 00010000 03:41 2361281 /usr/lib/skencil/Lib/paxmodule.so b7b01000-b7b05000 r-xp 00000000 03:41 756969 /usr/lib/libXdmcp.so.6.0.0 b7b05000-b7b06000 rw-p 00003000 03:41 756969 /usr/lib/libXdmcp.so.6.0.0 b7b06000-b7b08000 r-xp 00000000 03:41 756966 /usr/lib/libXau.so.6.0.0 b7b08000-b7b090Abandon (core dumped)
Confirmation :
$ skencil
*** glibc detected *** /usr/bin/python: free(): invalid pointer: 0xb7dcce18 *** i686/cmov/ libc.so. 6[0xb7e747cd] i686/cmov/ libc.so. 6(cfree+ 0x90)[0xb7e77e3 0] skencil/ Sketch/ ../Lib/ paxmodule. so[0xb7afb984] python[ 0x8110e6a] python( PyEval_ EvalFrameEx+ 0x6150) [0x80c8f80] python( PyEval_ EvalFrameEx+ 0x6135) [0x80c8f65] python( PyEval_ EvalFrameEx+ 0x6135) [0x80c8f65] python( PyEval_ EvalCodeEx+ 0x775)[ 0x80c9d65] python( PyEval_ EvalFrameEx+ 0x53f9) [0x80c8229] python( PyEval_ EvalCodeEx+ 0x775)[ 0x80c9d65] python[ 0x8112096] python( PyObject_ Call+0x27) [0x805c787] python[ 0x80628e4] python( PyObject_ Call+0x27) [0x805c787] python( PyEval_ EvalFrameEx+ 0x2031) [0x80c4e61] python( PyEval_ EvalCodeEx+ 0x775)[ 0x80c9d65] python[ 0x8112096] python( PyObject_ Call+0x27) [0x805c787] python[ 0x80628e4] python( PyObject_ Call+0x27) [0x805c787] python( PyEval_ CallObjectWithK eywords+ 0x6c)[0x80c1f7c ] python( PyInstance_ New+0x71) [0x8066031] python( PyObject_ Call+0x27) [0x805c787] python( PyEval_ EvalFrameEx+ 0x2031) [0x80c4e61] python( PyEval_ EvalFrameEx+ 0x6135) [0x80c8f65] python( PyEval_ EvalCodeEx+ 0x775)[ 0x80c9d65] python( PyEval_ EvalCode+ 0x57)[0x80c9dd7 ] python( PyRun_FileExFla gs+0xf8) [0x80e91d8] python( PyRun_SimpleFil eExFlags+ 0x187)[ 0x80e9467] python( Py_Main+ 0x9c0)[ 0x8059330] python( main+0x22) [0x8058862] i686/cmov/ libc.so. 6(__libc_ start_main+ 0xdc)[0xb7e22eb c] python[ 0x80587b1] python2. 5/lib-dynload/ fcntl.so python2. 5/lib-dynload/ fcntl.so python2. 5/lib-dynload/ _random. so python2. 5/lib-dynload/ _random. so python2. 5/lib-dynload/ binascii. so python2. 5/lib-dynload/ binascii. so skencil/ Lib/paxtkinter. so skencil/ Lib/paxtkinter. so skencil/ Sketch/ Modules/ pstokenize. so skencil/ Sketch/ Modules/ pstokenize. so skencil/ Sketch/ Modules/ _type1module. so skencil/ Sketch/ Modules/ _type1module. so skencil/ Lib/streamfilte r.so skencil/ Lib/streamfilte r.so python2. 5/lib-dynload/ time.so python2. 5/lib-dynload/ time.so gconv/ISO8859- 1.so gconv/ISO8859- 1.so skencil/ Resources/ Messages/ fr/LC_MESSAGES/ skencil. mo libz.so. 1.2.3 libz.so. 1.2.3 libjpeg. so.62.0. 0 libjpeg. so.62.0. 0 python2. 5/site- packages/ PIL/_imaging. so python2. 5/site- packages/ PIL/_imaging. so locale- langpack/ fr/LC_MESSAGES/ libc.mo libXext. so.6.4. 0 libXext. so.6.4. 0 libtcl8. 4.so.0 libtcl8. 4.so.0 libtk8. 4.so.0 libtk8. 4.so.0 skencil/ Lib/paxmodule. so skencil/ Lib/paxmodule. so libXdmcp. so.6.0. 0 libXdmcp. so.6.0. 0 libXau. so.6.0. 0 b7b090Abandon (core dumped)
======= Backtrace: =========
/lib/tls/
/lib/tls/
/usr/lib/
/usr/bin/
/usr/bin/
/usr/bin/
/usr/bin/
/usr/bin/
/usr/bin/
/usr/bin/
/usr/bin/
/usr/bin/
/usr/bin/
/usr/bin/
/usr/bin/
/usr/bin/
/usr/bin/
/usr/bin/
/usr/bin/
/usr/bin/
/usr/bin/
/usr/bin/
/usr/bin/
/usr/bin/
/usr/bin/
/usr/bin/
/usr/bin/
/usr/bin/
/usr/bin/
/usr/bin/
/usr/bin/
/lib/tls/
/usr/bin/
======= Memory map: ========
08048000-0813f000 r-xp 00000000 03:41 754480 /usr/bin/python2.5
0813f000-08164000 rw-p 000f6000 03:41 754480 /usr/bin/python2.5
08164000-084a2000 rw-p 08164000 00:00 0 [heap]
b6e00000-b6e21000 rw-p b6e00000 00:00 0
b6e21000-b6f00000 ---p b6e21000 00:00 0
b6f4f000-b6f5a000 r-xp 00000000 03:41 4980977 /lib/libgcc_s.so.1
b6f5a000-b6f5b000 rw-p 0000a000 03:41 4980977 /lib/libgcc_s.so.1
b6f6b000-b6f6d000 r-xp 00000000 03:41 1884368 /usr/lib/
b6f6d000-b6f6e000 rw-p 00002000 03:41 1884368 /usr/lib/
b6f6e000-b6f70000 r-xp 00000000 03:41 1884287 /usr/lib/
b6f70000-b6f71000 rw-p 00002000 03:41 1884287 /usr/lib/
b6f71000-b6f75000 r-xp 00000000 03:41 1884367 /usr/lib/
b6f75000-b6f76000 rw-p 00003000 03:41 1884367 /usr/lib/
b6f76000-b6f77000 ---p b6f76000 00:00 0
b6f77000-b7777000 rw-p b6f77000 00:00 0
b7777000-b777d000 r-xp 00000000 03:41 2361282 /usr/lib/
b777d000-b777e000 rw-p 00005000 03:41 2361282 /usr/lib/
b777e000-b7781000 r-xp 00000000 03:41 2361029 /usr/lib/
b7781000-b7782000 rw-p 00002000 03:41 2361029 /usr/lib/
b7782000-b7783000 r-xp 00000000 03:41 2361027 /usr/lib/
b7783000-b7784000 rw-p 00000000 03:41 2361027 /usr/lib/
b7784000-b778a000 r-xp 00000000 03:41 2361285 /usr/lib/
b778a000-b778b000 rw-p 00005000 03:41 2361285 /usr/lib/
b778b000-b77cc000 rw-p b778b000 00:00 0
b77cc000-b77cf000 r-xp 00000000 03:41 1884451 /usr/lib/
b77cf000-b77d1000 rw-p 00002000 03:41 1884451 /usr/lib/
b77d1000-b78b4000 rw-p b77d1000 00:00 0
b78b4000-b78b5000 r-xp 00000000 03:41 2097642 /usr/lib/
b78b5000-b78b7000 rw-p 00000000 03:41 2097642 /usr/lib/
b78b7000-b78c0000 r--p 00000000 03:41 2361264 /usr/lib/
b78c0000-b78d3000 r-xp 00000000 03:41 756284 /usr/lib/
b78d3000-b78d4000 rw-p 00012000 03:41 756284 /usr/lib/
b78d4000-b78f2000 r-xp 00000000 03:41 761784 /usr/lib/
b78f2000-b78f3000 rw-p 0001d000 03:41 761784 /usr/lib/
b78f3000-b7925000 r-xp 00000000 03:41 1950707 /usr/lib/
b7925000-b7928000 rw-p 00032000 03:41 1950707 /usr/lib/
b7928000-b7930000 rw-p b7928000 00:00 0
b7930000-b794c000 r--p 00000000 03:41 1081808 /usr/share/
b794c000-b7959000 r-xp 00000000 03:41 756981 /usr/lib/
b7959000-b795a000 rw-p 0000d000 03:41 756981 /usr/lib/
b795a000-b7a09000 r-xp 00000000 03:41 756108 /usr/lib/
b7a09000-b7a0f000 rw-p 000af000 03:41 756108 /usr/lib/
b7a0f000-b7ae2000 r-xp 00000000 03:41 756460 /usr/lib/
b7ae2000-b7aee000 rw-p 000d3000 03:41 756460 /usr/lib/
b7aee000-b7aff000 r-xp 00000000 03:41 2361281 /usr/lib/
b7aff000-b7b01000 rw-p 00010000 03:41 2361281 /usr/lib/
b7b01000-b7b05000 r-xp 00000000 03:41 756969 /usr/lib/
b7b05000-b7b06000 rw-p 00003000 03:41 756969 /usr/lib/
b7b06000-b7b08000 r-xp 00000000 03:41 756966 /usr/lib/
b7b08000-