Segment fault

I am writting a php script that will be used in production, it connects to a imap server gets all the headers and stores them in a db: Here is where it is crashing 0x28258ede in mm_cache () from /usr/local/lib/libc-client4.so.8 (gdb) bt #0 0x28258ede in mm_cache () from /usr/local/lib/libc-client4.so.8 #1 0x2825b9a2 in mail_elt () from /usr/local/lib/libc-client4.so.8 #2 0x0809af8e in zif_imap_headers (ht=1, return_value=0x113196a4, this_ptr=0x0, return_value_used=1) at /usr/home/ddalton/src/php-4.3.4/ext/imap/php_imap.c:1048 #3 0x081c2b06 in execute (op_array=0x82acb24) at /usr/home/ddalton/src/php-4.3.4/Zend/zend_execute.c:1616 #4 0x081b13a9 in zend_execute_scripts (type=8, retval=0x0, file_count=3) at /usr/home/ddalton/src/php-4.3.4/Zend/zend.c:884 #5 0x08179f5b in php_execute_script (primary_file=0xbfbff6fc) at /usr/home/ddalton/src/php-4.3.4/main/main.c:1729 #6 0x081c8fa9 in main (argc=2, argv=0xbfbff76c) at /usr/home/ddalton/src/php-4.3.4/sapi/cli/php_cli.c:819 #7 0x0806af85 in _start () it appears to run out of memory in the c-client, increasing the memory limit does not resolve the issue here are the key elements of the code: include '../config.php'; while($row = $results->fetchRow(DB_FETCHMODE_ASSOC)) { $cnt=0; $successful=false; extract ($row); $connectstr=connectstr($bmserver,$bmssl,$bmtype); $mbox = imap_open("\{$connectstr}", "$bmusername", "$bmpassword", OP_READONLY ); $list = imap_list($mbox, "\{$server}", "*"); if (is_array($list)) { reset($list); while (list($key, $val) = each($list)) {

    @imap_reopen($mbox,  $val, OP_READONLY );
     if ( $mbox === false )
      {
             $mbox = imap_open("\{$connectstr}$val", "$bmusername", "$bmpassword",  OP_READONLY );
      }

$headers = @imap_headers($mbox); $numEmails = sizeof($headers);

    if ($numEmails!=0 && is_array($headers))
    {
     for($i = 0; $i < $numEmails; $i++)
     {
     $mailHeader = @imap_headerinfo($mbox, $i);
     $from = $mailHeader->fromaddress;
     $fromar=split(",",$from);
     $xfrom=sizeof($fromar);

        for ($y=0; $y < $xfrom; $y++)
         {
         $emails=parseEmailString($fromar[$y]);
         if (insertemail ($emails))
           $successful=true;

         }
     }
    }

} } }