gdb httpd /tmp/core

(gdb) bt
#0  0xec835356 in ?? ()
#1  0xfec311ea in iconv () from /usr/lib/libc.so.1
#2  0xfd1de6ac in php_iconv_string (in_p=0x87aec8c "", in_len=0, out=0x80468c4, out_len=0x80468c0, out_charset=0x8710858 "//IGNORE",
    in_charset=0x8775e70 "") at /opt/src/php-5.3.3/ext/iconv/iconv.c:521
#3  0xfd1e24bb in php_if_iconv (ht=3, return_value=0x87ada3c, return_value_ptr=0x0, this_ptr=0x0, return_value_used=1)
    at /opt/src/php-5.3.3/ext/iconv/iconv.c:2300
#4  0xfd464e6e in zend_do_fcall_common_helper_SPEC (execute_data=0x83dfa74) at /opt/src/php-5.3.3/Zend/zend_vm_execute.h:316
#5  0xfd469898 in ZEND_DO_FCALL_SPEC_CONST_HANDLER (execute_data=0x83dfa74) at /opt/src/php-5.3.3/Zend/zend_vm_execute.h:1606
#6  0xfd464195 in execute (op_array=0x849f0c0) at /opt/src/php-5.3.3/Zend/zend_vm_execute.h:107
#7  0xfd4393b6 in zend_execute_scripts (type=8, retval=0x0, file_count=3) at /opt/src/php-5.3.3/Zend/zend.c:1194
#8  0xfd3d1160 in php_execute_script (primary_file=0x8047320) at /opt/src/php-5.3.3/main/main.c:2260
#9  0xfd4ed7e1 in php_handler (r=0x83c0828) at /opt/src/php-5.3.3/sapi/apache2handler/sapi_apache2.c:669
#10 0x0807c038 in ap_run_handler ()
#11 0x0807c438 in ap_invoke_handler ()
#12 0x08087a55 in ap_process_request ()
#13 0x08085603 in ?? ()
#14 0x083c0828 in ?? ()
#15 0x00000004 in ?? ()
#16 0x083c0828 in ?? ()
#17 0x000008e0 in ?? ()
#18 0x083be7e0 in ?? ()
#19 0x083b4a90 in ?? ()
#20 0x08047678 in ?? ()
#21 0x083b4a90 in ?? ()
#22 0x081ca388 in ?? ()
#23 0x00000000 in ?? ()
(gdb) frame 6
#6  0xfd464195 in execute (op_array=0x849f0c0) at /opt/src/php-5.3.3/Zend/zend_vm_execute.h:107
107                     if ((ret = EX(opline)->handler(execute_data TSRMLS_CC)) > 0) {


From: El Reggae Dancer <reggaedancer@ymail.com>
To: users@lists.roundcube.net
Sent: Mon, October 11, 2010 7:02:26 PM
Subject: Roundcube/Apache crashing

Hello,

I've successfully installed Roundcube 0.4.2 on Solaris 10.
I'm running :
Apache 2.2.11
PHP 5.2.14
Mysql  Ver 14.14 Distrib 5.1.30
On the same server I'm running Squirremail.
But when I tried to login from the Roundcube start page, Apache crashed:

Apache log file:
==========
[Mon Oct 11 18:34:18 2010] [notice] child pid 18250 exit signal Segmentation fault (11),possible coredump in /tmp

Then I tried to debug the Apache, what I've before the crash is :
============================================
18250: lxstat(2, "/var/opt/roundcubemail-0.4.2", 0x08043F80) = 0 
18250: lxstat(2, "/var/opt", 0x08043E60) = 0 
18250: lxstat(2, "/var", 0x08043D50) = 0 
18250: open("/var/opt/roundcubemail-0.4.2/program/include/rcube_plugin.php", O_RDONLY) = 17 
18250: fstat64(17, 0x08045B60) = 0 [...]
18250: close(17) = 0 
18250: pollsys(0x08046778, 1, 0x08046750, 0x00000000) = 0 
18250: open("/usr/local/lib/charset.alias", O_RDONLY) = 17 
18250: fstat64(17, 0x08046470) = 0 
18250: fstat64(17, 0x080465C0) = 0 
18250: fstat64(17, 0x08046500) = 0 
18250: ioctl(17, TCGETA, 0x08046594) Err#25 ENOTTY 
18250: read(17, " # T h i s f i l e ".., 1024) = 625 
18250: read(17, 0x086B8A1C, 1024) = 0 
18250: llseek(17, 0, SEEK_CUR) = 625 18250: close(17) = 0
18250: Incurred fault #6, FLTBOUNDS %pc = 0xEC835356 
18250: siginfo: SIGSEGV SEGV_MAPERR addr=0xEC835356 
18250: Received signal #11, SIGSEGV [caught] 
18250: siginfo: SIGSEGV SEGV_MAPERR addr=0xEC835356
18250: lwp_sigmask(SIG_SETMASK, 0x00000400, 0x00000000) = 0xFFBFFEFF [0x0000FFFF] 
18250: chdir("/tmp") = 0
================================================
There is no error in the Roundcube logfile : /var/opt/roundcubemail-0.4.2/logs
I tried to debug the core file created by Apache:
================================
%
gdb httpd /tmp/core
Core was generated by `/opt/webstack/apache2/2.2/bin/httpd -D 32bit -f /etc/opt/webstack/apache2/2.2/h'.
Program terminated with signal 11, Segmentation fault.
[New process 83786    ]
#0  0xec835356 in ?? ()
(gdb)
bt full
#9  0xfd4ed7e1 in php_handler (r=0x83c0828) at /opt/src/php-5.3.3/sapi/apache2handler/sapi_apache2.c:669
        zfd = {type = ZEND_HANDLE_MAPPED, filename = 0x83dab08 "/var/opt/roundcubemail-0.4.2/index.php", 
opened_path = 0x0, handle = {
    fd = 136273344, fp = 0x81f5dc0, stream = {handle = 0x81f5dc0, isatty = 0, mmap = {len = 9822, pos = 0,
 map = 0x0,
       
buf = 0xfe220000 <Address 0xfe220000 out of bounds>, old_handle = 0x0, old_closer = 0}, reader = 0xfd3e85c4 
<_php_stream_read>,
      fsizer = 0xfd3cf115 <php_zend_stream_fsizer>, closer = 0xfd3cf0e1 <php_zend_stream_mmap_closer>}}, 
free_filename = 0 '\0'}
        __orig_bailout = (sigjmp_buf *) 0x0
====================================
The Apache is working correctly with other virtual host, it's crashing only for the host using Roundcube.
I've tried Roundcube version 4.0, and PHP 5.3.3, I've got the same result (Apache child process crashing).

Any help would be appreciated.

Benarson