Hi, I'm using php 5.2.1 with apache 2.2.6 and while running certain tests I see a segmentation fault - the relevant stack is given below. My php configure line is as follows configure '--prefix=/my/php/installdir' *'--with-tsrm-pthreads' *'--with-ldap' *'--enable-maintainer-zts'* '--enable-sigchild' '--enable-so' '--with-apxs2=/my/apache2/bin/apxs' '--without-sqlite' '--without-pdo-sqlite' '--with-oci8=/my/oracle/installdir' '--enable-mbstring' I'm running apache with a threaded MPM. Is that a probem as I remember reading somewhere that php does not quite work well with threaded MPMs. Would appreciate any help/pointers on this. Thanks, Rashmi ----------------------------------- #0 0x007937a2 in _dl_sysinfo_int80 () from /lib/ld-linux.so.2 #1 0x007d7c96 in kill () from /lib/tls/libc.so.6 #2 0x08070da8 in sig_coredump () #3 <signal handler called> #4 0x00a00d24 in pthread_mutex_lock () from /lib/tls/libpthread.so.0 *#5 0xb461d9f5 in tsrm_mutex_lock (mutexp=0x0) at /ade/rbadan_gollum/oracle/apache_modules/mod_php/php-5.2.1 /TSRM/TSRM.c:660 #6 0xb461d071 in ts_resource_ex (id=0, th_id=0x0)* at /ade/rbadan_gollum/oracle/apache_modules/mod_php/php-5.2.1 /TSRM/TSRM.c:345 #7 0xb472dcb5 in php_handler (r=0x85c65b0) at /ade/rbadan_gollum/oracle/apache_modules/mod_php/php-5.2.1 /sapi/apache2handler/sapi_apache2.c:500 #8 0x080829af in ap_run_handler () #9 0x08082807 in ap_invoke_handler () #10 0x080976d5 in async_run_handlers () #11 0x080975f3 in async_process_connection () #12 0x08097346 in process_socket () #13 0x08096e97 in worker_thread () #14 0xb7f83e33 in dummy_worker (opaque=0x85bf438) at threadproc/unix/thread.c:142 #15 0x009ff371 in start_thread () from /lib/tls/libpthread.so.0 #16 0x008779be in clone () from /lib/tls/libc.so.6