Hi all,
I'm developing an application using the library libxml2.
It seams that all was ok but yesterday my application crashed for an unknown
reason.
I tried to debug and after some work I found that the line where my
application crash is the xmlMalloc in the xmlParserCtxtPtr !
I'm using the libxml2 version 2.7.6
I'm using the autotools
=> In the file configure.ac :
*# libxml2*
*PKG_CHECK_MODULES(LIBXMLDEPS, libxml-2.0 >= 2.6.8)*
*AC_SUBST(LIBXMLDEPS_CFLAGS)*
=> In the file makefile.am :
l*ibmxml_la_CPPFLAGS = -Iinclude $(LIBXMLDEPS_CFLAGS) -D_GNU_SOURCE*
This is the back-trace :
*** glibc detected *** /home/mine/buildSVNLocal/web/cgi/config_etat.cgi:
malloc(): memory corruption: 0x08052840 ***
======= Backtrace: =========
/lib/tls/i686/cmov/libc.so.6(+0x6b591)[0x55f591]
/lib/tls/i686/cmov/libc.so.6(+0x6e395)[0x562395]
/lib/tls/i686/cmov/libc.so.6(__libc_malloc+0x5c)[0x563f9c]
/usr/lib/libxml2.so.2(xmlNewParserCtxt+0x29)[0x3a02d9]
/usr/lib/libxml2.so.2(xmlCreateMemoryParserCtxt+0x34)[0x3a3d94]
/usr/lib/libxml2.so.2(xmlSAXParseMemoryWithData+0x34)[0x3bae74]
/usr/lib/libxml2.so.2(xmlSAXParseMemory+0x2e)[0x3baf3e]
/usr/lib/libxml2.so.2(xmlParseMemory+0x28)[0x3baf98]
/home/mine/local/lib/libmxml.so.1(raw_parse_buffer+0x93)[0x15dd0a] //I call
here xmlParseMemory
This is the function :
xmlParserCtxtPtr xmlNewParserCtxt(void)
{
xmlParserCtxtPtr ctxt;
ctxt = (xmlParserCtxtPtr) xmlMalloc(sizeof(xmlParserCtxt));
if (ctxt == NULL) {
//<- Never see this line !!!
xmlErrMemory(NULL, "cannot allocate parser context\n");
return(NULL);
}
memset(ctxt, 0, sizeof(xmlParserCtxt));
if (xmlInitParserCtxt(ctxt) < 0) {
xmlFreeParserCtxt(ctxt);
return(NULL);
}
return(ctxt);
}
With a google search I saw some errors with xmlMalloc but not in the same
context that mine.
Do you have any ideas ? I need your help.
Thanks
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