Extra Information missing from backtrace ->

#0  0x000000000067a493 in zend_objects_store_mark_destructed (objects=0xaa00f8) at /root/php-5.1.4/Zend/zend_objects_API.c:70
70                      if (objects->object_buckets[i].valid) {

Please try using this CVS snapshot:

  http://snaps.php.net/php5.2-latest.tar.gz
 
For Windows:
 
  http://snaps.php.net/win32/php5.2-win32-latest.zip

Nope, happens every time i try to run phpmyadmin through php  if that helps. I've no idea which line actually causes it to seg tho, trying to figure that one out :/

Core was generated by `php-fcgi -c /root/php.break.ini index.php'.
Program terminated with signal 11, Segmentation fault.
#0  0x0000000000795c4c in zend_objects_store_mark_destructed (objects=0xbe6900) at /root/php5.2-200608101230/Zend/zend_objects_API.c:70
70                      if (objects->object_buckets[i].valid) {

#0  0x0000000000795c4c in zend_objects_store_mark_destructed (objects=0xbe6900) at /root/php5.2-200608101230/Zend/zend_objects_API.c:70
#1  0x000000000071874d in php_error_cb (type=1, error_filename=0xa1f27b "Unknown", error_lineno=0, format=0xa01f39 "%s", args=0x7ffff029b620) at /root/php5.2-200608101230/main/main.c:836
#2  0x00000000007714cb in zend_error (type=1, format=0xa01f39 "%s") at /root/php5.2-200608101230/Zend/zend.c:944
#3  0x0000000000717a6f in php_verror (docref=0x0, params=0xa01a41 "", type=1, format=0x9d63b7 "Cannot find save handler %s", args=0x7ffff029b860) at /root/php5.2-200608101230/main/main.c:574
#4  0x0000000000717cb5 in php_error_docref0 (docref=0x0, type=1, format=0x9d63b7 "Cannot find save handler %s") at /root/php5.2-200608101230/main/main.c:594
#5  0x00000000005e758c in OnUpdateSaveHandler (entry=0xd20720, new_value=0xbf83c0 "file", new_value_length=4, mh_arg1=0x0, mh_arg2=0x0, mh_arg3=0x0, stage=8)
    at /root/php5.2-200608101230/ext/session/session.c:103
#6  0x0000000000788d7e in zend_restore_ini_entry_cb (ini_entry=0xd20720, stage=8) at /root/php5.2-200608101230/Zend/zend_ini.c:55
#7  0x0000000000788e27 in zend_restore_ini_entry_wrapper (ini_entry=0x2ba7bf365d88) at /root/php5.2-200608101230/Zend/zend_ini.c:70
#8  0x000000000077f661 in zend_hash_apply (ht=0x2ba7bcf46388, apply_func=0x788e0a <zend_restore_ini_entry_wrapper>) at /root/php5.2-200608101230/Zend/zend_hash.c:666
#9  0x0000000000788f18 in zend_ini_deactivate () at /root/php5.2-200608101230/Zend/zend_ini.c:109
#10 0x000000000077117f in zend_deactivate () at /root/php5.2-200608101230/Zend/zend.c:848
#11 0x000000000071966e in php_request_shutdown (dummy=0x0) at /root/php5.2-200608101230/main/main.c:1300
#12 0x00000000007f5bbb in main (argc=4, argv=0x7ffff029e0e8) at /root/php5.2-200608101230/sapi/cgi/cgi_main.c:1667

Thank you for this bug report. To properly diagnose the problem, we
need a short but complete example script to be able to reproduce
this bug ourselves. 

A proper reproducing script starts with <?php and ends with ?>,
is max. 10-20 lines long and does not require any external 
resources such as databases, etc. If the script requires a 
database to demonstrate the issue, please make sure it creates 
all necessary tables, stored procedures etc.

Please avoid embedding huge scripts into the report.

Curious tho , as it displays the output of the page .. and then promptly crashes rather than exiting cleanly.

eg: 
<page html>
    PHP Fatal error:  Unknown: Cannot find save handler file in Unknown on line 0
Segmentation fault (core dumped)

We still need a short reproduce case.

I'm gonna go scour the phpmyadmin code