Package: python-lxml Version: 2.0.2-1 Severity: important Hi,
when lxml.etree.iterparse is used with an XML schema instance for on-the-fly validation, the Python interpreter crashes when the iterparse object is collected. Stack trace: *** glibc detected *** python2.5-dbg: free(): invalid pointer: 0x085ff7a4 *** ======= Backtrace: ========= /lib/i686/cmov/libc.so.6[0xb7e08564] /lib/i686/cmov/libc.so.6(cfree+0x96)[0xb7e0a766] /usr/lib/libxml2.so.2(xmlFreeParserCtxt+0xec)[0xb7622a4c] /usr/lib/python2.5/site-packages/lxml/etree_d.so[0xb7807994] /usr/lib/python2.5/site-packages/lxml/etree_d.so[0xb789a55a] /usr/lib/python2.5/site-packages/lxml/etree_d.so[0xb789d4a5] python2.5-dbg(_Py_Dealloc+0x28)[0x80969d0] /usr/lib/python2.5/site-packages/lxml/etree_d.so[0xb7891f40] /usr/lib/python2.5/site-packages/lxml/etree_d.so[0xb789dd9d] python2.5-dbg(_Py_Dealloc+0x28)[0x80969d0] python2.5-dbg[0x8145dde] python2.5-dbg(_Py_Dealloc+0x28)[0x80969d0] python2.5-dbg[0x80ec524] python2.5-dbg[0x80ec214] python2.5-dbg(PyEval_EvalFrameEx+0x85b8)[0x80e787f] python2.5-dbg[0x80ec4ba] python2.5-dbg[0x80ec214] python2.5-dbg(PyEval_EvalFrameEx+0x85b8)[0x80e787f] python2.5-dbg[0x80ec4ba] python2.5-dbg[0x80ec214] python2.5-dbg(PyEval_EvalFrameEx+0x85b8)[0x80e787f] python2.5-dbg(PyEval_EvalCodeEx+0xc07)[0x80e9d58] python2.5-dbg(PyEval_EvalCode+0x57)[0x80df2aa] python2.5-dbg[0x8113cf8] python2.5-dbg(PyRun_FileExFlags+0xbb)[0x8113c8e] python2.5-dbg(PyRun_SimpleFileExFlags+0x267)[0x811282c] python2.5-dbg(PyRun_AnyFileExFlags+0x7e)[0x8111f68] python2.5-dbg(Py_Main+0x8fe)[0x8059c30] python2.5-dbg(main+0x22)[0x8058cf6] /lib/i686/cmov/libc.so.6(__libc_start_main+0xe6)[0xb7db0456] python2.5-dbg[0x8058c41] ======= Memory map: ======== 08048000-08181000 r-xp 00000000 08:01 2399818 /usr/bin/python2.5-dbg 08181000-081ac000 rwxp 00139000 08:01 2399818 /usr/bin/python2.5-dbg 081ac000-08715000 rwxp 081ac000 00:00 0 [heap] b7300000-b7321000 rwxp b7300000 00:00 0 b7321000-b7400000 ---p b7321000 00:00 0 b74ea000-b7550000 r-xp 00000000 08:01 2401666 /usr/lib/libsqlite3.so.0.8.6 b7550000-b7552000 rwxp 00066000 08:01 2401666 /usr/lib/libsqlite3.so.0.8.6 b756a000-b757a000 r-xp 00000000 08:01 1550519 /usr/lib/python2.5/lib-dynload/_sqlite3_d.so b757a000-b757c000 rwxp 0000f000 08:01 1550519 /usr/lib/python2.5/lib-dynload/_sqlite3_d.so b757c000-b758f000 r-xp 00000000 08:01 1550533 /usr/lib/python2.5/lib-dynload/datetime_d.so b758f000-b7592000 rwxp 00012000 08:01 1550533 /usr/lib/python2.5/lib-dynload/datetime_d.so b7592000-b7595000 r-xp 00000000 08:01 2401174 /usr/lib/libgpg-error.so.0.3.0 b7595000-b7596000 rwxp 00002000 08:01 2401174 /usr/lib/libgpg-error.so.0.3.0 b7596000-b75fc000 r-xp 00000000 08:01 2401032 /usr/lib/libgcrypt.so.11.4.3 b75fc000-b75fe000 rwxp 00065000 08:01 2401032 /usr/lib/libgcrypt.so.11.4.3 b75fe000-b7716000 r-xp 00000000 08:01 2401334 /usr/lib/libxml2.so.2.6.31 b7716000-b771b000 rwxp 00118000 08:01 2401334 /usr/lib/libxml2.so.2.6.31 b771b000-b771c000 rwxp b771b000 00:00 0 b771c000-b772c000 r-xp 00000000 08:01 2402955 /usr/lib/libexslt.so.0.8.13 b772c000-b772d000 rwxp 0000f000 08:01 2402955 /usr/lib/libexslt.so.0.8.13 b772d000-b7760000 r-xp 00000000 08:01 2404263 /usr/lib/libxslt.so.1.1.22 b7760000-b7761000 rwxp 00032000 08:01 2404263 /usr/lib/libxslt.so.1.1.22 b7765000-b7771000 r-xp 00000000 08:01 1734355 /lib/libgcc_s.so.1 b7771000-b7772000 rwxp 0000b000 08:01 1734355 /lib/libgcc_s.so.1 b7772000-b7779000 r-xs 00000000 08:01 2399320 /usr/lib/gconv/gconv-modules.cache b7779000-b78c5000 r-xp 00000000 08:01 103925 /usr/lib/python2.5/site-packages/lxml/etree_d.so b78c5000-b78e0000 rwxp 0014b000 08:01 103925 /usr/lib/python2.5/site-packages/lxml/etree_d.so b78e0000-b78e6000 rwxp b78e0000 00:00 0 b78e6000-b78e8000 r-xp 00000000 08:01 1550505 /usr/lib/python2.5/lib-dynload/_functools_d.so b78e8000-b78e9000 rwxp 00001000 08:01 1550505 /usr/lib/python2.5/lib-dynload/_functools_d.so b78e9000-b794a000 rwxp b78e9000 00:00 0 b794a000-b794c000 r-xp 00000000 08:01 1517763 /usr/lib/python2.5/lib-dynload/_bisect_d.so b794c000-b794d000 rwxp 00001000 08:01 1517763 /usr/lib/python2.5/lib-dynload/_bisect_d.so b794d000-b7951000 r-xp 00000000 08:01 1550520 /usr/lib/python2.5/lib-dynload/_ssl_d.so b7951000-b7952000 rwxp 00003000 08:01 1550520 /usr/lib/python2.5/lib-dynload/_ssl_d.so 134 b7952000-b7a83000 r-xp 00000000 08:01 147396 /usr/lib/i686/cmov/libcrypto.so.0.9.8 b7a83000-b7a99000 rwxp 00131000 08:01 147396 /usr/lib/i686/cmov/libcrypto.so.0.9.8 b7a99000-b7a9c000 rwxp b7a99000 00:00 0 b7a9c000-b7add000 r-xp 00000000 08:01 147397 /usr/lib/i686/cmov/libssl.so.0.9.8 b7add000-b7ae1000 rwxp 00040000 08:01 147397 /usr/lib/i686/cmov/libssl.so.0.9.8 b7ae3000-b7aee000 r-xp 00000000 08:01 1550518 /usr/lib/python2.5/lib-dynload/_socket_d.so b7aee000-b7af1000 rwxp 0000b000 08:01 1550518 /usr/lib/python2.5/lib-dynload/_socket_d.so b7af1000-b7af4000 r-xp 00000000 08:01 1550541 /usr/lib/python2.5/lib-dynload/fcntl_d.so b7af4000-b7af5000 rwxp 00003000 08:01 1550541 /usr/lib/python2.5/lib-dynload/fcntl_d.so b7af5000-b7af8000 r-xp 00000000 08:01 1550517 /usr/lib/python2.5/lib-dynload/_random_d.so b7af8000-b7af9000 rwxp 00002000 08:01 1550517 /usr/lib/python2.5/lib-dynload/_random_d.so b7af9000-b7b0d000 r-xp 00000000 08:01 2402691 /usr/lib/libz.so.1.2.3.3 b7b0d000-b7b0e000 rwxp 00013000 08:01 2402691 /usr/lib/libz.so.1.2.3.3 b7b0f000-b7b12000 r-xp 00000000 08:01 1550645 /usr/lib/python2.5/lib-dynload/math_d.so b7b12000-b7b13000 rwxp 00002000 08:01 1550645 /usr/lib/python2.5/lib-dynload/math_d.so b7b13000-b7b15000 r-xp 00000000 08:01 1550506 /usr/lib/python2.5/lib-dynload/_hashlib_d.so b7b15000-b7b16000 rwxp 00002000 08:01 1550506 /usr/lib/python2.5/lib-dynload/_hashlib_d.so b7b16000-b7b1a000 r-xp 00000000 08:01 1550526 /usr/lib/python2.5/lib-dynload/binascii_d.so b7b1a000-b7b1c000 rwxp 00003000 08:01 1550526 /usr/lib/python2.5/lib-dynload/binascii_d.so b7b1c000-b7b23000 r-xp 00000000 08:01 1550521 /usr/lib/python2.5/lib-dynload/_struct_d.so b7b23000-b7b24000 rwxp 00007000 08:01 1550521 /usr/lib/python2.5/lib-dynload/_struct_d.so b7b24000-b7b25000 r-xp 00000000 08:01 1550523 /usr/lib/python2.5/lib-dynload/_weakref_d.so b7b25000-b7b26000 rwxp 00000000 08:01 1550523 /usr/lib/python2.5/lib-dynload/_weakref_d.so b7b26000-b7b2b000 r-xp 00000000 08:01 1550688 /usr/lib/python2.5/lib-dynload/zlib_d.so b7b2b000-b7b2d000 rwxp 00004000 08:01 1550688 /usr/lib/python2.5/lib-dynload/zlib_d.so b7b2d000-b7b43000 r-xp 00000000 08:01 1550528 /usr/lib/python2.5/lib-dynload/cPickle_d.so b7b43000-b7b44000 rwxp 00016000 08:01 1550528 /usr/lib/python2.5/lib-dynload/cPickle_d.so b7b44000-b7b4c000 r-xp 00000000 08:01 1550524 /usr/lib/python2.5/lib-dynload/array_d.so b7b4c000-b7b4e000 rwxp 00008000 08:01 1550524 /usr/lib/python2.5/lib-dynload/array_d.so b7b4e000-b7b54000 r-xp 00000000 08:01 1550662 /usr/lib/python2.5/lib-dynload/operator_d.so b7b54000-b7b55000 rwxp 00006000 08:01 1550662 /usr/lib/python2.5/lib-dynload/operator_d.so b7b55000-b7b5d000 r-xp 00000000 08:01 1550625 /usr/lib/python2.5/lib-dynload/itertools_d.so b7b5d000-b7b60000 rwxp 00007000 08:01 1550625 /usr/lib/python2.5/lib-dynload/itertools_d.so b7b60000-b7ba1000 rwxp b7b60000 00:00 0 b7ba2000-b7d17000 r-xp 00000000 08:01 1811528 /usr/lib/locale/locale-archive b7d17000-b7d9a000 rwxp b7d17000 00:00 0 b7d9a000-b7eef000 r-xp 00000000 08:01 1795289 /lib/i686/cmov/libc-2.7.so b7eef000-b7ef0000 r-xp 00155000 08:01 1795289 /lib/i686/cmov/libc-2.7.so b7ef0000-b7ef2000 rwxp 00156000 08:01 1795289 /lib/i686/cmov/libc-2.7.so b7ef2000-b7ef5000 rwxp b7ef2000 00:00 0 b7ef5000-b7f19000 r-xp 00000000 08:01 1795296 /lib/i686/cmov/libm-2.7.so b7f19000-b7f1b000 rwxp 00023000 08:01 1795296 /lib/i686/cmov/libm-2.7.so b7f1b000-b7f1d000 r-xp 00000000 08:01 1795320 /lib/i686/cmov/libutil-2.7.so b7f1d000-b7f1f000 rwxp 00001000 08:01 1795320 /lib/i686/cmov/libutil-2.7.so b7f1f000-b7f20000 rwxp b7f1f000 00:00 0 b7f20000-b7f22000 r-xp 00000000 08:01 1795295 /lib/i686/cmov/libdl-2.7.so b7f22000-b7f24000 rwxp 00001000 08:01 1795295 /lib/i686/cmov/libdl-2.7.so b7f24000-b7f39000 r-xp 00000000 08:01 1795308 /lib/i686/cmov/libpthread-2.7.so b7f39000-b7f3b000 rwxp 00014000 08:01 1795308 /lib/i686/cmov/libpthread-2.7.so b7f3b000-b7f3e000 rwxp b7f3b000 00:00 0 b7f3e000-b7f44000 r-xp 00000000 08:01 1550531 /usr/lib/python2.5/lib-dynload/collections_d.so b7f44000-b7f45000 rwxp 00006000 08:01 1550531 /usr/lib/python2.5/lib-dynload/collections_d.so b7f45000-b7f48000 r-xp 00000000 08:01 1550529 /usr/lib/python2.5/lib-dynload/cStringIO_d.so b7f48000-b7f49000 rwxp 00003000 08:01 1550529 /usr/lib/python2.5/lib-dynload/cStringIO_d.so b7f49000-b7f4e000 r-xp 00000000 08:01 1550677 /usr/lib/python2.5/lib-dynload/strop_d.so b7f4e000-b7f50000 rwxp 00004000 08:01 1550677 /usr/lib/python2.5/lib-dynload/strop_d.so b7f50000-b7f53000 r-xp 00000000 08:01 1550686 /usr/lib/python2.5/lib-dynload/time_d.so b7f53000-b7f55000 rwxp 00003000 08:01 1550686 /usr/lib/python2.5/lib-dynload/time_d.so b7f55000-b7f57000 rwxp b7f55000 00:00 0 b7f57000-b7f58000 r-xp b7f57000 00:00 0 [vdso] b7f58000-b7f72000 r-xp 00000000 08:01 1729995 /lib/ld-2.7.so b7f72000-b7f74000 rwxp 0001a000 08:01 1729995 /lib/ld-2.7.so bfbf7000-bfc27000 rw-p bffd0000 00:00 0 [stack] The bug also occurs if the document is empty. The schema I used is at http://svn.ling.su.se/treealigner/trunk/data/schema/TigerXML.xsd (there are two more XSD files in this directory which are referenced by the main schema). best, Torsten --- System information. --- Architecture: i386 Kernel: Linux 2.6.24-shl4 Debian Release: lenny/sid 500 unstable www.debian-multimedia.org 500 unstable ftp.de.debian.org 500 experimental www.debian-multimedia.org 1 experimental ftp.de.debian.org --- Package information. --- Depends (Version) | Installed ==============================-+-============ libc6 (>= 2.7-1) | 2.7-9 libxml2 (>= 2.6.27) | 2.6.31.dfsg-2 libxslt1.1 (>= 1.1.18) | 1.1.22-1 python (>= 2.4) | 2.4.4-6 python (<< 2.6) | 2.4.4-6 python-central (>= 0.6) | 0.6.1 zlib1g | 1:1.2.3.3.dfsg-11
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