root@time php5 # gdb ./sapi/cli/php core
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This GDB was configured as "i586-pc-linux-gnu"...
Core was generated by `/var/tmp/portage/php-cvs-5.0/work/php5/sapi/cli/php -n -dsafe_mode 0 /var/tmp/p'.
Program terminated with signal 11, Segmentation fault.
Reading symbols from /lib/libsandbox.so...done.
Loaded symbols for /lib/libsandbox.so
Reading symbols from /usr/lib/libsablot.so.0...done.
Loaded symbols for /usr/lib/libsablot.so.0
Reading symbols from /usr/lib/gcc-lib/i586-pc-linux-gnu/3.2.3/libstdc++.so.5...done.
Loaded symbols for /usr/lib/gcc-lib/i586-pc-linux-gnu/3.2.3/libstdc++.so.5
Reading symbols from /usr/lib/libexpat.so.0...done.
Loaded symbols for /usr/lib/libexpat.so.0
Reading symbols from /usr/lib/libdb.so.2...done.
Loaded symbols for /usr/lib/libdb.so.2
Reading symbols from /usr/lib/libcrack.so.2...done.
Loaded symbols for /usr/lib/libcrack.so.2
Reading symbols from /usr/lib/libz.so.1...done.
Loaded symbols for /usr/lib/libz.so.1
Reading symbols from /lib/libresolv.so.2...done.
Loaded symbols for /lib/libresolv.so.2
Reading symbols from /lib/libm.so.6...done.
Loaded symbols for /lib/libm.so.6
Reading symbols from /usr/lib/libxmlparse.so.0...done.
Loaded symbols for /usr/lib/libxmlparse.so.0
Reading symbols from /usr/lib/libxmltok.so.0...done.
Loaded symbols for /usr/lib/libxmltok.so.0
Reading symbols from /lib/libdl.so.2...done.
Loaded symbols for /lib/libdl.so.2
Reading symbols from /usr/lib/libmysqlclient.so.12...done.
Loaded symbols for /usr/lib/libmysqlclient.so.12
Reading symbols from /lib/libcrypt.so.1...done.
Loaded symbols for /lib/libcrypt.so.1
---Type <return> to continue, or q <return> to quit---
Reading symbols from /lib/libnsl.so.1...done.
Loaded symbols for /lib/libnsl.so.1
Reading symbols from /usr/lib/libssl.so.0.9.6...done.
Loaded symbols for /usr/lib/libssl.so.0.9.6
Reading symbols from /usr/lib/libcrypto.so.0.9.6...done.
Loaded symbols for /usr/lib/libcrypto.so.0.9.6
Reading symbols from /usr/lib/libxml2.so.2...done.
Loaded symbols for /usr/lib/libxml2.so.2
Reading symbols from /lib/libpthread.so.0...done.
Loaded symbols for /lib/libpthread.so.0
Reading symbols from /lib/libc.so.6...done.
Loaded symbols for /lib/libc.so.6
Reading symbols from /usr/lib/gcc-lib/i586-pc-linux-gnu/3.2.3/libgcc_s.so.1...done.
Loaded symbols for /usr/lib/gcc-lib/i586-pc-linux-gnu/3.2.3/libgcc_s.so.1
Reading symbols from /lib/ld-linux.so.2...done.
Loaded symbols for /lib/ld-linux.so.2
Reading symbols from /lib/libnss_files.so.2...done.
Loaded symbols for /lib/libnss_files.so.2
#0  0x0814a9cb in _efree ()
(gdb) bt
#0  0x0814a9cb in _efree ()
#1  0x0810db2f in php_xml_free_wrapper ()
#2  0x403c9f77 in xmlCleanupCharEncodingHandlers () from /usr/lib/libxml2.so.2
#3  0x403e26f5 in xmlCleanupParser () from /usr/lib/libxml2.so.2
#4  0x0810e039 in zm_shutdown_xml ()
#5  0x081614f0 in module_destructor ()
#6  0x081637a8 in zend_hash_apply_deleter ()
#7  0x0816384c in zend_hash_graceful_reverse_destroy ()
#8  0x0815d9e8 in zend_shutdown ()
#9  0x0812ad6f in php_module_shutdown ()
#10 0x0817a56f in main ()
#11 0x40506b2b in __libc_start_main () from /lib/libc.so.6