Delete config.cache, add --enable-debug into your configure line, 'make clean ; make ; make install' and generate a GDB backtrace of the crash and add it into this bug report.

--Jani

test-program:

$xmldoc = domxml_new_xmldoc('1.0');
$xmldoc->add_root("bla");


gdb backtrace:

Program received signal SIGSEGV, Segmentation fault.
0x401a3938 in objects () at zend_operators.c:1144
1144    }
(gdb) bt
#0  0x401a3938 in objects () at zend_operators.c:1144
#1  0x402c13e4 in php4_module () from /usr/local/apache/libexec/libphp4.so
#2  0x401d892a in objects () at php_domxml.c:668
#3  0x40199707 in objects () at ./zend_execute.c:853
#4  0x401aafc0 in objects () at zend.c:260
#5  0x401c3be3 in objects () at main.c:1126
#6  0x401bf11e in objects () at sapi_apache.c:98
#7  0x401bfe89 in objects () at mod_php4.c:437
#8  0x401bfed3 in objects () at mod_php4.c:437
#9  0x8074c09 in ap_invoke_handler ()
#10 0x808a0cf in process_request_internal ()
#11 0x808a142 in ap_process_request ()
#12 0x8080d96 in child_main ()
#13 0x8080f55 in make_child ()
#14 0x80810d6 in startup_children ()
#15 0x808175c in standalone_main ()
#16 0x8081f8c in main ()
#17 0x40096a8e in __libc_start_main () at ../sysdeps/generic/libc-start.c:93

This still does not work in latest cvs (06/05/2001).
used another machine with libxml2-2.3.7 and linux-kernel 2.4.0. If one needs another backtrace, i can make one...

also 
$xml = xmldocfile("config.xml");
$root = domxml_root($xml);

produces a segfault (config.xml is a very simple xml file)

marking as fix before 4.0.6

ok, there seems to be a massive api-change in domxml...
a lot, which worked in 4.0.5 seems not to work in 4.0.6
but for my former example, the following seems to work:

$doc = new_xmldoc("1.0");
$root = $doc->add_root("HTML");
echo $doc->dumpmem();

but this api-change makes me crazy. some things are easy to change (replace domxml_function($object,....) with $object->function(...), this works also with 4.0.5), but  the structure of the objects seem to have changed, too.. but maybe i missed something... otherwise i have to rewrite a lot of code and to check which version of php is used :=(

User reports this is fixed.

Closing

- James