php5 cli segmentation fault when executing script

[Adrian Almenar]

Binary package hint: php5-cli

Description: Ubuntu 10.04 LTS
Release: 10.04

php5-cli:
  Installed: 5.3.2-1ubuntu4.2
  Candidate: 5.3.2-1ubuntu4.2
  Version table:
 *** 5.3.2-1ubuntu4.2 0
        500 http://es.archive.ubuntu.com/ubuntu/ lucid-updates/main Packages
        100 /var/lib/dpkg/status
     5.3.2-1ubuntu4 0
        500 http://es.archive.ubuntu.com/ubuntu/ lucid/main Packages

When I execute a php script on the command line i get segmentation fault.

On the log, i see this happens at the moment a SQL Query to the mysql is raised.

The gdb backtrace is this:
Program received signal SIGSEGV, Segmentation fault.
0x08329955 in gc_zval_possible_root (zv=0xa56a6e4) at /build/buildd/php5-5.3.2/Zend/zend_gc.c:143
143 /build/buildd/php5-5.3.2/Zend/zend_gc.c: No such file or directory.
        in /build/buildd/php5-5.3.2/Zend/zend_gc.c
(gdb) bt
#0 0x08329955 in gc_zval_possible_root (zv=0xa56a6e4) at /build/buildd/php5-5.3.2/Zend/zend_gc.c:143
#1 0x082fd4c1 in _zval_ptr_dtor (zval_ptr=0xa53fd54) at /build/buildd/php5-5.3.2/Zend/zend_gc.h:183
#2 0x08316f94 in zend_hash_destroy (ht=0xa58a674) at /build/buildd/php5-5.3.2/Zend/zend_hash.c:726
#3 0x0832d2b3 in zend_object_std_dtor (object=0xa55c4b8) at /build/buildd/php5-5.3.2/Zend/zend_objects.c:45
#4 0x0832d2f2 in zend_objects_free_object_storage (object=0xa55c4b8) at /build/buildd/php5-5.3.2/Zend/zend_objects.c:114
#5 0x08330e1d in zend_objects_store_del_ref_by_handle_ex (handle=<error type>, handlers=0x8764700) at /build/buildd/php5-5.3.2/Zend/zend_objects_API.c:220
#6 0x08330e5f in zend_objects_store_del_ref (zobject=0xa5a50bc) at /build/buildd/php5-5.3.2/Zend/zend_objects_API.c:172
#7 0x08309cd9 in _zval_dtor_func (zvalue=0xa5a50bc) at /build/buildd/php5-5.3.2/Zend/zend_variables.c:55
#8 0x082fd48d in _zval_ptr_dtor (zval_ptr=0xa58ecd4) at /build/buildd/php5-5.3.2/Zend/zend_variables.h:35
#9 0x08316f94 in zend_hash_destroy (ht=0x8903d1c) at /build/buildd/php5-5.3.2/Zend/zend_hash.c:726
#10 0x08309c96 in _zval_dtor_func (zvalue=0xa5afb00) at /build/buildd/php5-5.3.2/Zend/zend_variables.c:46
#11 0x082fd48d in _zval_ptr_dtor (zval_ptr=0xa581904) at /build/buildd/php5-5.3.2/Zend/zend_variables.h:35
#12 0x08316f94 in zend_hash_destroy (ht=0xa57a8d4) at /build/buildd/php5-5.3.2/Zend/zend_hash.c:726
#13 0x0832d2b3 in zend_object_std_dtor (object=0xa5afb2c) at /build/buildd/php5-5.3.2/Zend/zend_objects.c:45
#14 0x0832d2f2 in zend_objects_free_object_storage (object=0xa5afb2c) at /build/buildd/php5-5.3.2/Zend/zend_objects.c:114
#15 0x08330e1d in zend_objects_store_del_ref_by_handle_ex (handle=<error type>, handlers=0x8764700) at /build/buildd/php5-5.3.2/Zend/zend_objects_API.c:220
#16 0x08330e5f in zend_objects_store_del_ref (zobject=0xa5be2a8) at /build/buildd/php5-5.3.2/Zend/zend_objects_API.c:172
#17 0x08309cd9 in _zval_dtor_func (zvalue=0xa5be2a8) at /build/buildd/php5-5.3.2/Zend/zend_variables.c:55
#18 0x082fd48d in _zval_ptr_dtor (zval_ptr=0xbfffc984) at /build/buildd/php5-5.3.2/Zend/zend_variables.h:35
#19 0x083301fb in zend_std_write_property (object=0xa5c56d8, member=0xa0299e0, value=0xa5d17d8) at /build/buildd/php5-5.3.2/Zend/zend_object_handlers.c:435
#20 0x0837a9d9 in zend_assign_to_object (result=0xa0299b4, object_ptr=0x877b788, property_name=0xa0299e0, value_op=0xa029a14, Ts=0x893febc, opcode=136)
    at /build/buildd/php5-5.3.2/Zend/zend_execute.c:589
#21 0x0837b268 in ZEND_ASSIGN_OBJ_SPEC_UNUSED_CONST_HANDLER (execute_data=0x893fe60) at /build/buildd/php5-5.3.2/Zend/zend_vm_execute.h:17617
#22 0x08333d8e in execute (op_array=0x8a3fa50) at /build/buildd/php5-5.3.2/Zend/zend_vm_execute.h:104
#23 0x082ffbf1 in zend_call_function (fci=0xbfffcbe0, fci_cache=0xbfffcc04) at /build/buildd/php5-5.3.2/Zend/zend_execute_API.c:947
#24 0x0822eaa5 in zif_call_user_func_array (ht=2, return_value=0x8c81364, return_value_ptr=0x0, this_ptr=0x0, return_value_used=1)
    at /build/buildd/php5-5.3.2/ext/standard/basic_functions.c:4782
#25 0x0835d26a in zend_do_fcall_common_helper_SPEC (execute_data=0x893d630) at /build/buildd/php5-5.3.2/Zend/zend_vm_execute.h:313
#26 0x08333d8e in execute (op_array=0x8909eac) at /build/buildd/php5-5.3.2/Zend/zend_vm_execute.h:104
#27 0x08309fa6 in zend_execute_scripts (type=8, retval=0x0, file_count=3) at /build/buildd/php5-5.3.2/Zend/zend.c:1266
#28 0x082ae754 in php_execute_script (primary_file=0xbffff1d4) at /build/buildd/php5-5.3.2/main/main.c:2288
#29 0x083a0c28 in main (argc=5, argv=0xbffff314) at /build/buildd/php5-5.3.2/sapi/cli/php_cli.c:1196

(gdb) frame 22
#22 0x08333d8e in execute (op_array=0x8a3fa50) at /build/buildd/php5-5.3.2/Zend/zend_vm_execute.h:104
104 /build/buildd/php5-5.3.2/Zend/zend_vm_execute.h: No such file or directory.
        in /build/buildd/php5-5.3.2/Zend/zend_vm_execute.h

This was reported on bug 343870 but people said it's not mysql related.

Using strace i see that it locks after sending the query to mysql server.

If anything else is needed please let me know im willing to help on this.

[Chuck Short (zulcss)]

Please attach script.

chuck

[Adrian Almenar (aalmenar)]

I cant include the script at this time. Will try to make the same functionality and test it.

[Adrian Almenar (aalmenar)]

Also in dmesg i get these logs:

[341181.619018] php[10488]: segfault at ca88972a ip 08328de7 sp bfaf5c50 error 5 in php5[8048000+6d9000]
[341509.211242] php[11579]: segfault at 69396420 ip 08328ef9 sp bfcbada0 error 4 in php5[8048000+6d9000]
[341653.136945] php[11991]: segfault at 486dc821 ip 08328ef9 sp bfea9650 error 4 in php5[8048000+6d9000]
[341902.914159] php[12844]: segfault at b1f81c20 ip 08328ef9 sp bf8d85f0 error 4 in php5[8048000+6d9000]
[343515.576780] php[17983]: segfault at 7f2f341b ip 08328cd0 sp bfe1bc90 error 4 in php5[8048000+6d9000]
[343775.020288] php[18690]: segfault at ada2501d ip 08329620 sp bfe65b90 error 4 in php5[8048000+6d9000]
[343897.493101] php[19220]: segfault at ed789421 ip 08328ef9 sp bfd0c880 error 5 in php5[8048000+6d9000]
[344024.024374] php[19595]: segfault at 29289420 ip 08328ef9 sp bfc32310 error 4 in php5[8048000+6d9000]
[344219.065977] php[20192]: segfault at 43e2501d ip 08329620 sp bf8eade0 error 4 in php5[8048000+6d9000]
[345468.780574] php[24585]: segfault at f9343027 ip 08328ef9 sp bfe776f0 error 4 in php5[8048000+6d9000]
[346602.453770] php[26910]: segfault at a6fc ip 08328e51 sp bfd0ba20 error 4 in php5[8048000+6d9000]
[348591.313900] php[28845]: segfault at 18952023 ip 08328ef9 sp bfaf40a0 error 4 in php5[8048000+6d9000]

[Adrian Almenar (aalmenar)]

I though it was libmysqlclient or mysql related since it dies when executing a query, but randomly, no specific query:

With strace:

poll([{fd=4, events=POLLIN|POLLPRI}], 1, 0) = 0 (Timeout)
write(4, "\234\1\0\0\3SELECT TABLE.FKTABLEID"..., 416) = 416
read(4, "\1\0\0\1\rK\0\0\2\3def\7testdatabase\10ITEM\10D"..., 16384) = 1096
--- SIGSEGV (Segmentation fault) @ 0 (0) ---
+++ killed by SIGSEGV +++

[Adrian Almenar (aalmenar)]

Making more tests, some times the script finishes but also segfaults when exiting with this backtrace:

Program received signal SIGSEGV, Segmentation fault.
zend_mm_remove_from_free_list (heap=0xffffffff, mm_block=0xb0908bc) at /build/buildd/php5-5.3.2/Zend/zend_alloc_canary.c:889
889 /build/buildd/php5-5.3.2/Zend/zend_alloc_canary.c: No such file or directory.
 in /build/buildd/php5-5.3.2/Zend/zend_alloc_canary.c
(gdb) bt
#0 zend_mm_remove_from_free_list (heap=0xffffffff, mm_block=0xb0908bc) at /build/buildd/php5-5.3.2/Zend/zend_alloc_canary.c:889
#1 0x0832bedd in _zend_mm_free_canary_int (heap=0x877c5b0, p=0xb090a0c) at /build/buildd/php5-5.3.2/Zend/zend_alloc_canary.c:2131
#2 0x082eb8c8 in _efree (ptr=0xb090a0c) at /build/buildd/php5-5.3.2/Zend/zend_alloc.c:2619
#3 0x08316fd2 in zend_hash_destroy (ht=0xb0b39b0) at /build/buildd/php5-5.3.2/Zend/zend_hash.c:733
#4 0x08309c96 in _zval_dtor_func (zvalue=0xb0ba1bc) at /build/buildd/php5-5.3.2/Zend/zend_variables.c:46
#5 0x082fd48d in _zval_ptr_dtor (zval_ptr=0xb0b95b4) at /build/buildd/php5-5.3.2/Zend/zend_variables.h:35
#6 0x08316f94 in zend_hash_destroy (ht=0xb0b7fcc) at /build/buildd/php5-5.3.2/Zend/zend_hash.c:726
#7 0x0832d2b3 in zend_object_std_dtor (object=0xb0ba764) at /build/buildd/php5-5.3.2/Zend/zend_objects.c:45
#8 0x0832d2f2 in zend_objects_free_object_storage (object=0xb0ba764) at /build/buildd/php5-5.3.2/Zend/zend_objects.c:114
#9 0x083307f2 in zend_objects_store_free_object_storage (objects=0x877b850) at /build/buildd/php5-5.3.2/Zend/zend_objects_API.c:92
#10 0x082fd88d in shutdown_executor () at /build/buildd/php5-5.3.2/Zend/zend_execute_API.c:302
#11 0x0830a9af in zend_deactivate () at /build/buildd/php5-5.3.2/Zend/zend.c:962
#12 0x082af368 in php_request_shutdown (dummy=0x0) at /build/buildd/php5-5.3.2/main/main.c:1649
#13 0x0839fb31 in main (argc=7, argv=0xbffff7b4) at /build/buildd/php5-5.3.2/sapi/cli/php_cli.c:1377
(gdb)

[Adrian Almenar (aalmenar)]

A new backtrace with more information:

Program received signal SIGSEGV, Segmentation fault.
zval_mark_grey (pz=0x13539974) at /build/buildd/php5-5.3.2/Zend/zend_gc.c:356
356 p = Z_ARRVAL_P(pz)->pListHead;
(gdb) bt
#0 zval_mark_grey (pz=0x13539974) at /build/buildd/php5-5.3.2/Zend/zend_gc.c:356
#1 0x08328d08 in zval_mark_grey (pz=0x13539974) at /build/buildd/php5-5.3.2/Zend/zend_gc.c:367
#2 0x0832970d in gc_collect_cycles () at /build/buildd/php5-5.3.2/Zend/zend_gc.c:417
#3 0x08329995 in gc_zval_possible_root (zv=0x13f32a8c) at /build/buildd/php5-5.3.2/Zend/zend_gc.c:166
#4 0x082fd4c1 in _zval_ptr_dtor (zval_ptr=0xbfffd16c) at /build/buildd/php5-5.3.2/Zend/zend_gc.h:183
#5 0x0835cc09 in zend_do_fcall_common_helper_SPEC (execute_data=0x13f32a8c) at /build/buildd/php5-5.3.2/Zend/zend_execute.h:316
#6 0x08333d8e in execute (op_array=0x8909d28) at /build/buildd/php5-5.3.2/Zend/zend_vm_execute.h:104
#7 0x08309fa6 in zend_execute_scripts (type=8, retval=0x0, file_count=3) at /build/buildd/php5-5.3.2/Zend/zend.c:1266
#8 0x082ae754 in php_execute_script (primary_file=0xbffff674) at /build/buildd/php5-5.3.2/main/main.c:2288
#9 0x083a0c28 in main (argc=7, argv=0xbffff7b4) at /build/buildd/php5-5.3.2/sapi/cli/php_cli.c:1196
(gdb) frame 6
#6 0x08333d8e in execute (op_array=0x8909d28) at /build/buildd/php5-5.3.2/Zend/zend_vm_execute.h:104
104 if ((ret = EX(opline)->handler(execute_data TSRMLS_CC)) > 0) {
(gdb) p ret
$2 = 324245876
(gdb) p handler
$3 = {{name = 0x83abb54 "cdb", flags = 31, open = 0x80c3150 <dba_open_cdb>, close = 0x80c30e0 <dba_close_cdb>, fetch = 0x80c2fe0 <dba_fetch_cdb>,
    update = 0x80c2f70 <dba_update_cdb>, exists = 0x80c2f10 <dba_exists_cdb>, delete = 0x80c2af0 <dba_delete_cdb>, firstkey = 0x80c2d50 <dba_firstkey_cdb>,
    nextkey = 0x80c2be0 <dba_nextkey_cdb>, optimize = 0x80c2b00 <dba_optimize_cdb>, sync = 0x80c2b10 <dba_sync_cdb>, info = 0x80c2b20 <dba_info_cdb>}, {
    name = 0x83abcc1 "cdb_make", flags = 31, open = 0x80c3150 <dba_open_cdb>, close = 0x80c30e0 <dba_close_cdb>, fetch = 0x80c2fe0 <dba_fetch_cdb>,
    update = 0x80c2f70 <dba_update_cdb>, exists = 0x80c2f10 <dba_exists_cdb>, delete = 0x80c2af0 <dba_delete_cdb>, firstkey = 0x80c2d50 <dba_firstkey_cdb>,
    nextkey = 0x80c2be0 <dba_nextkey_cdb>, optimize = 0x80c2b00 <dba_optimize_cdb>, sync = 0x80c2b10 <dba_sync_cdb>, info = 0x80c2b20 <dba_info_cdb>}, {name = 0x83abcca "db4",
    flags = 15, open = 0x80c3390 <dba_open_db4>, close = 0x80c3320 <dba_close_db4>, fetch = 0x80c3a40 <dba_fetch_db4>, update = 0x80c39a0 <dba_update_db4>,
    exists = 0x80c38f0 <dba_exists_db4>, delete = 0x80c3890 <dba_delete_db4>, firstkey = 0x80c3810 <dba_firstkey_db4>, nextkey = 0x80c3720 <dba_nextkey_db4>,
    optimize = 0x80c32b0 <dba_optimize_db4>, sync = 0x80c32c0 <dba_sync_db4>, info = 0x80c32f0 <dba_info_db4>}, {name = 0x83abb58 "inifile", flags = 95,
    open = 0x80c4470 <dba_open_inifile>, close = 0x80c4440 <dba_close_inifile>, fetch = 0x80c4180 <dba_fetch_inifile>, update = 0x80c4300 <dba_update_inifile>,
    exists = 0x80c4240 <dba_exists_inifile>, delete = 0x80c40e0 <dba_delete_inifile>, firstkey = 0x80c4080 <dba_firstkey_inifile>, nextkey = 0x80c4000 <db...

[Jan K. (jan-launchpad-kantert)]

We got a similar problem without mysql in lucid without using mysql. Happens in Apache at a strange point. Only happens when using memcache, when we try to clean some objects:

Program received signal SIGSEGV, Segmentation fault.
0x00007ffff3d9c980 in gc_remove_zval_from_buffer (
    zv=0x7fffffffb7c0)
    at /build/buildd/php5-5.3.2/Zend/zend_gc.h:189
189 /build/buildd/php5-5.3.2/Zend/zend_gc.h: No such file or directory.
 in /build/buildd/php5-5.3.2/Zend/zend_gc.h
(gdb) bt
#0 0x00007ffff3d9c980 in gc_remove_zval_from_buffer (
    zv=0x7fffffffb7c0)
    at /build/buildd/php5-5.3.2/Zend/zend_gc.h:189
#1 0x00007ffff3d72a05 in _zval_ptr_dtor (
    zval_ptr=0x7ffffa79ba88)
    at /build/buildd/php5-5.3.2/Zend/zend_execute_API.c:438
#2 0x00007ffff3d8b988 in zend_hash_destroy (
    ht=0x7ffff8e12de8)
    at /build/buildd/php5-5.3.2/Zend/zend_hash.c:726
#3 0x00007ffff3d7e98f in _zval_dtor_func (
    zvalue=0x7ffff8e234b8)
    at /build/buildd/php5-5.3.2/Zend/zend_variables.c:46
#4 0x00007ffff3d729bd in _zval_ptr_dtor (
    zval_ptr=0x7fffffffbae8)
    at /build/buildd/php5-5.3.2/Zend/zend_variables.h:35
#5 0x00007ffff3da3778 in zend_std_write_property (
    object=0x7ffffa79cb70, member=0x7ffffa79cb70,
    value=0x7ffff893da30)
    at /build/buildd/php5-5.3.2/Zend/zend_object_handlers.c:435
#6 0x00007ffff3df2c4a in zend_assign_to_object (
    result=0x7ffff8e21b98, object_ptr=0x7ffff4476b20,
    property_name=0x7ffff8e21be0, value_op=0x7ffff8e21c30,
    Ts=0x7ffff7e85898, opcode=-92885552)
    at /build/buildd/php5-5.3.2/Zend/zend_execute.c:595
#7 0x00007ffff3df35dd in ZEND_ASSIGN_OBJ_SPEC_UNUSED_CONST_HANDLER (execute_data=0x7ffff7e857f0)
    at /build/buildd/php5-5.3.2/Zend/zend_vm_execute.h:17617
#8 0x00007ffff3da6f60 in execute (op_array=0x7ffff8e1d5e0)
    at /build/buildd/php5-5.3.2/Zend/zend_vm_execute.h:104
#9 0x00007ffff3d7ec8d in zend_execute_scripts (
    type=4194336, retval=0x7fffffffbc80, file_count=3)
    at /build/buildd/php5-5.3.2/Zend/zend.c:1266
#10 0x00007ffff3d2a8f8 in php_execute_script (
    primary_file=0x0)
    at /build/buildd/php5-5.3.2/main/main.c:2288
#11 0x00007ffff3e0bf2d in php_handler (r=0x7ffff3e0bf2d)
    at /build/buildd/php5-5.3.2/sapi/apache2handler/sapi_apache2.c:674
#12 0x00007ffff7fd6140 in ap_run_handler (r=0x7ffff86c3fa0)
    at /build/buildd/apache2-2.2.14/server/config.c:159
#13 0x00007ffff7fd9aa8 in ap_invoke_handler (
    r=0x7ffff86c3fa0)
    at /build/buildd/apache2-2.2.14/server/config.c:373
#14 0x00007ffff7fe749c in ap_internal_redirect (
    new_uri=<value optimized out>, r=<value optimized out>)
    at /build/buildd/apache2-2.2.14/modules/http/http_request.c:501
#15 0x00007ffff13c7c95 in ?? ()
   from /usr/lib/apache2/modules/mod_rewrite.so
#16 0x00007ffff7fd6140 in ap_run_handler (r=0x7ffff86adba8)
    at /build/buildd/apache2-2.2.14/server/config.c:159
#17 0x00007ffff7fd9aa8 in ap_invoke_handler (
    r=0x7ffff86adba8)
    at /build/buildd/apache2-2.2.14/server/config.c:373
#18 0x00007ffff7fe7678 in ap_process_request (
    r=0x7ffff86adba8)
    at /build/buildd/apache2-2.2.14/modules/http/http_request.c:282
#19 0x00007ffff7fe4528 in ap_process_http_connection (
    c=0x7ffff86a79d...

[raspi (raspi)]

Cli version PHP 5.3.2-1ubuntu4.2 with Suhosin-Patch (cli) (built: May 13 2010 20:03:45)

Program received signal SIGSEGV, Segmentation fault.
0x00000000006b2a8c in ?? ()
(gdb) bt
#0 0x00000000006b2a8c in ?? ()
#1 0x00000000006b2aae in ?? ()
#2 0x00000000006b2aae in ?? ()
#3 0x00000000006b2aae in ?? ()
#4 0x00000000006b2b65 in ?? ()
#5 0x00000000006b3475 in gc_collect_cycles ()
#6 0x00000000006b3684 in gc_zval_possible_root ()
#7 0x000000000070910f in ?? ()
#8 0x0000000000709a7d in ?? ()
#9 0x00000000006bd400 in execute ()
#10 0x000000000069512d in zend_execute_scripts ()
#11 0x0000000000640d98 in php_execute_script ()
#12 0x0000000000726236 in ?? ()
#13 0x00007ffff52a6c4d in __libc_start_main () from /lib/libc.so.6
#14 0x000000000042c639 in _start ()

[Jan K. (jan-launchpad-kantert)]

The problem seems to be a problem in memcache. We switched to the memcached extension and everything is working now! No more segfaults.

Jan

[Launchpad Janitor (janitor)]

[Expired for php5 (Ubuntu) because there has been no activity for 60 days.]

[Omid Kosari (omidkosari)]

Program received signal SIGSEGV, Segmentation fault.
0x00000000006b57d9 in gc_zval_possible_root (zv=0x3470c40) at /build/buildd/php5-5.3.2/Zend/zend_gc.c:143
143 /build/buildd/php5-5.3.2/Zend/zend_gc.c: No such file or directory.
        in /build/buildd/php5-5.3.2/Zend/zend_gc.c
(gdb) bt
#0 0x00000000006b57d9 in gc_zval_possible_root (zv=0x3470c40) at /build/buildd/php5-5.3.2/Zend/zend_gc.c:143
#1 0x00000000006a3eb8 in zend_hash_destroy (ht=0x3225800) at /build/buildd/php5-5.3.2/Zend/zend_hash.c:726
#2 0x000000000054efed in sxe_object_free_storage (object=0x322dbd8) at /build/buildd/php5-5.3.2/ext/simplexml/simplexml.c:2016
#3 0x00000000006bcadc in zend_objects_store_del_ref_by_handle_ex (handle=32767, handlers=0x31f5c70)
    at /build/buildd/php5-5.3.2/Zend/zend_objects_API.c:220
#4 0x00000000006bcb03 in zend_objects_store_del_ref (zobject=0x364bca8) at /build/buildd/php5-5.3.2/Zend/zend_objects_API.c:172
#5 0x0000000000719d38 in ZEND_ASSIGN_SPEC_CV_VAR_HANDLER (execute_data=0x7ffff7ea8438) at /build/buildd/php5-5.3.2/Zend/zend_execute.c:698
#6 0x00000000006bf770 in execute (op_array=0x17cd8f8) at /build/buildd/php5-5.3.2/Zend/zend_vm_execute.h:104
#7 0x00007fffeb293836 in ?? () from /usr/lib/php5/20090626/suhosin.so
#8 0x00000000006e8176 in zend_do_fcall_common_helper_SPEC (execute_data=0x7ffff7ea6640)
    at /build/buildd/php5-5.3.2/Zend/zend_vm_execute.h:337
#9 0x00000000006bf770 in execute (op_array=0x17cd8f8) at /build/buildd/php5-5.3.2/Zend/zend_vm_execute.h:104
#10 0x00007fffeb293836 in ?? () from /usr/lib/php5/20090626/suhosin.so
#11 0x00000000006e8176 in zend_do_fcall_common_helper_SPEC (execute_data=0x7ffff7ea58d0)
    at /build/buildd/php5-5.3.2/Zend/zend_vm_execute.h:337
#12 0x00000000006bf770 in execute (op_array=0x17c6f40) at /build/buildd/php5-5.3.2/Zend/zend_vm_execute.h:104
#13 0x00007fffeb293836 in ?? () from /usr/lib/php5/20090626/suhosin.so
#14 0x00000000006e8176 in zend_do_fcall_common_helper_SPEC (execute_data=0x7ffff7ea4a10)
    at /build/buildd/php5-5.3.2/Zend/zend_vm_execute.h:337
#15 0x00000000006bf770 in execute (op_array=0x18088b0) at /build/buildd/php5-5.3.2/Zend/zend_vm_execute.h:104
#16 0x00007fffeb293836 in ?? () from /usr/lib/php5/20090626/suhosin.so
#17 0x00000000006e8176 in zend_do_fcall_common_helper_SPEC (execute_data=0x7ffff7ea40a8)
    at /build/buildd/php5-5.3.2/Zend/zend_vm_execute.h:337
---Type <return> to continue, or q <return> to quit---
#18 0x00000000006bf770 in execute (op_array=0x1797b88) at /build/buildd/php5-5.3.2/Zend/zend_vm_execute.h:104
#19 0x00007fffeb293836 in ?? () from /usr/lib/php5/20090626/suhosin.so
#20 0x00000000006e8176 in zend_do_fcall_common_helper_SPEC (execute_data=0x7ffff7ea37e0)
    at /build/buildd/php5-5.3.2/Zend/zend_vm_execute.h:337
#21 0x00000000006bf770 in execute (op_array=0x16fd5e0) at /build/buildd/php5-5.3.2/Zend/zend_vm_execute.h:104
#22 0x00007fffeb293836 in ?? () from /usr/lib/php5/20090626/suhosin.so
#23 0x00000000006e8176 in zend_do_fcall_common_helper_SPEC (execute_data=0x7ffff7ea34a0)
    at /build/buildd/php5-5.3.2/Zend/zend_vm_execute.h:337
#24 0x00000000006bf770 in execute (op_array=0x1734308) at /build/buildd/php5-5.3.2/Zend/zend_vm_exec...

[Hamed Narimani (narimani-h)]

I am using php with zend framework. when running codes on my local pc everything is ok but when I run them on server, I get exactly the same error as other comments :

Program received signal SIGSEGV, Segmentation fault.
0x00000000006b57d9 in gc_zval_possible_root (zv=0x3470c40) at /build/buildd/php5-5.3.2/Zend/zend_gc.c:143
143 /build/buildd/php5-5.3.2/Zend/zend_gc.c: No such file or directory.
        in /build/buildd/php5-5.3.2/Zend/zend_gc.c

[Omid Kosari (omidkosari)]

Program received signal SIGSEGV, Segmentation fault.
zend_mm_remove_from_free_list (heap=0xd96ac0, mm_block=0x2d3fab0) at /build/buildd/php5-5.3.2/Zend/zend_alloc_canary.c:889
889 /build/buildd/php5-5.3.2/Zend/zend_alloc_canary.c: No such file or directory.
        in /build/buildd/php5-5.3.2/Zend/zend_alloc_canary.c
(gdb) bt
#0 zend_mm_remove_from_free_list (heap=0xd96ac0, mm_block=0x2d3fab0) at /build/buildd/php5-5.3.2/Zend/zend_alloc_canary.c:889
#1 0x00000000006b7b9b in _zend_mm_free_canary_int (heap=0xd96ac0, p=0x2d3fa68) at /build/buildd/php5-5.3.2/Zend/zend_alloc_canary.c:2126
#2 0x000000000054efed in sxe_object_free_storage (object=0x2d3f6e8) at /build/buildd/php5-5.3.2/ext/simplexml/simplexml.c:2016
#3 0x00000000006bcadc in zend_objects_store_del_ref_by_handle_ex (handle=32767, handlers=0x2d3fab0)
    at /build/buildd/php5-5.3.2/Zend/zend_objects_API.c:220
#4 0x00000000006bcb03 in zend_objects_store_del_ref (zobject=0x2d3f698) at /build/buildd/php5-5.3.2/Zend/zend_objects_API.c:172
#5 0x0000000000719d38 in ZEND_ASSIGN_SPEC_CV_VAR_HANDLER (execute_data=0x7ffff7eaed18) at /build/buildd/php5-5.3.2/Zend/zend_execute.c:698
#6 0x00000000006bf770 in execute (op_array=0x17cd8f8) at /build/buildd/php5-5.3.2/Zend/zend_vm_execute.h:104
#7 0x00007fffeb293836 in ?? () from /usr/lib/php5/20090626/suhosin.so
#8 0x00000000006e8176 in zend_do_fcall_common_helper_SPEC (execute_data=0x7ffff7eacf20)
    at /build/buildd/php5-5.3.2/Zend/zend_vm_execute.h:337
#9 0x00000000006bf770 in execute (op_array=0x17cd8f8) at /build/buildd/php5-5.3.2/Zend/zend_vm_execute.h:104
#10 0x00007fffeb293836 in ?? () from /usr/lib/php5/20090626/suhosin.so
#11 0x00000000006e8176 in zend_do_fcall_common_helper_SPEC (execute_data=0x7ffff7eab128)
    at /build/buildd/php5-5.3.2/Zend/zend_vm_execute.h:337
#12 0x00000000006bf770 in execute (op_array=0x17cd8f8) at /build/buildd/php5-5.3.2/Zend/zend_vm_execute.h:104
#13 0x00007fffeb293836 in ?? () from /usr/lib/php5/20090626/suhosin.so
#14 0x00000000006e8176 in zend_do_fcall_common_helper_SPEC (execute_data=0x7ffff7ea9330)
    at /build/buildd/php5-5.3.2/Zend/zend_vm_execute.h:337
#15 0x00000000006bf770 in execute (op_array=0x17cd8f8) at /build/buildd/php5-5.3.2/Zend/zend_vm_execute.h:104
#16 0x00007fffeb293836 in ?? () from /usr/lib/php5/20090626/suhosin.so
#17 0x00000000006e8176 in zend_do_fcall_common_helper_SPEC (execute_data=0x7ffff7ea7538)
    at /build/buildd/php5-5.3.2/Zend/zend_vm_execute.h:337
---Type <return> to continue, or q <return> to quit---
#18 0x00000000006bf770 in execute (op_array=0x17cd8f8) at /build/buildd/php5-5.3.2/Zend/zend_vm_execute.h:104
#19 0x00007fffeb293836 in ?? () from /usr/lib/php5/20090626/suhosin.so
#20 0x00000000006e8176 in zend_do_fcall_common_helper_SPEC (execute_data=0x7ffff7ea67c8)
    at /build/buildd/php5-5.3.2/Zend/zend_vm_execute.h:337
#21 0x00000000006bf770 in execute (op_array=0x17c6f40) at /build/buildd/php5-5.3.2/Zend/zend_vm_execute.h:104
#22 0x00007fffeb293836 in ?? () from /usr/lib/php5/20090626/suhosin.so
#23 0x00000000006e8176 in zend_do_fcall_common_helper_SPEC (execute_data=0x7ffff7ea5908)
    at /build/buildd/php5-5.3.2/Zend/zend_vm_execute.h:337
#24 0x0000000000...

[Omid Kosari (omidkosari)]

Program received signal SIGSEGV, Segmentation fault.
0x00000000006b57d9 in gc_zval_possible_root (zv=0x351f4c8) at /build/buildd/php5-5.3.2/Zend/zend_gc.c:143
143 GC_ZOBJ_CHECK_POSSIBLE_ROOT(zv);
(gdb) bt
#0 0x00000000006b57d9 in gc_zval_possible_root (zv=0x351f4c8) at /build/buildd/php5-5.3.2/Zend/zend_gc.c:143
#1 0x00000000006a3eb8 in zend_hash_destroy (ht=0x32e6ed0) at /build/buildd/php5-5.3.2/Zend/zend_hash.c:726
#2 0x000000000054efed in sxe_object_free_storage (object=0x32e3510) at /build/buildd/php5-5.3.2/ext/simplexml/simplexml.c:2016
#3 0x00000000006bcadc in zend_objects_store_del_ref_by_handle_ex (handle=32767, handlers=0x32ecbb0) at /build/buildd/php5-5.3.2/Zend/zend_objects_API.c:220
#4 0x00000000006bcb03 in zend_objects_store_del_ref (zobject=0x3535208) at /build/buildd/php5-5.3.2/Zend/zend_objects_API.c:172
#5 0x0000000000719d38 in ZEND_ASSIGN_SPEC_CV_VAR_HANDLER (execute_data=0x7ffff7ea8438) at /build/buildd/php5-5.3.2/Zend/zend_execute.c:698
#6 0x00000000006bf770 in execute (op_array=0x17cded8) at /build/buildd/php5-5.3.2/Zend/zend_vm_execute.h:104
#7 0x00007fffeb293836 in ?? () from /usr/lib/php5/20090626/suhosin.so
#8 0x00000000006e8176 in zend_do_fcall_common_helper_SPEC (execute_data=0x7ffff7ea6640) at /build/buildd/php5-5.3.2/Zend/zend_vm_execute.h:337
#9 0x00000000006bf770 in execute (op_array=0x17cded8) at /build/buildd/php5-5.3.2/Zend/zend_vm_execute.h:104
#10 0x00007fffeb293836 in ?? () from /usr/lib/php5/20090626/suhosin.so
#11 0x00000000006e8176 in zend_do_fcall_common_helper_SPEC (execute_data=0x7ffff7ea58d0) at /build/buildd/php5-5.3.2/Zend/zend_vm_execute.h:337
#12 0x00000000006bf770 in execute (op_array=0x17c7520) at /build/buildd/php5-5.3.2/Zend/zend_vm_execute.h:104
#13 0x00007fffeb293836 in ?? () from /usr/lib/php5/20090626/suhosin.so
#14 0x00000000006e8176 in zend_do_fcall_common_helper_SPEC (execute_data=0x7ffff7ea4a10) at /build/buildd/php5-5.3.2/Zend/zend_vm_execute.h:337
#15 0x00000000006bf770 in execute (op_array=0x1808e90) at /build/buildd/php5-5.3.2/Zend/zend_vm_execute.h:104
#16 0x00007fffeb293836 in ?? () from /usr/lib/php5/20090626/suhosin.so
#17 0x00000000006e8176 in zend_do_fcall_common_helper_SPEC (execute_data=0x7ffff7ea40a8) at /build/buildd/php5-5.3.2/Zend/zend_vm_execute.h:337
#18 0x00000000006bf770 in execute (op_array=0x1798168) at /build/buildd/php5-5.3.2/Zend/zend_vm_execute.h:104
#19 0x00007fffeb293836 in ?? () from /usr/lib/php5/20090626/suhosin.so
#20 0x00000000006e8176 in zend_do_fcall_common_helper_SPEC (execute_data=0x7ffff7ea37e0) at /build/buildd/php5-5.3.2/Zend/zend_vm_execute.h:337
#21 0x00000000006bf770 in execute (op_array=0x16fdbc0) at /build/buildd/php5-5.3.2/Zend/zend_vm_execute.h:104
#22 0x00007fffeb293836 in ?? () from /usr/lib/php5/20090626/suhosin.so
---Type <return> to continue, or q <return> to quit---
#23 0x00000000006e8176 in zend_do_fcall_common_helper_SPEC (execute_data=0x7ffff7ea34a0) at /build/buildd/php5-5.3.2/Zend/zend_vm_execute.h:337
#24 0x00000000006bf770 in execute (op_array=0x17348e8) at /build/buildd/php5-5.3.2/Zend/zend_vm_execute.h:104
#25 0x00007fffeb293836 in ?? () from /usr/lib/php5/20090626/suhosin.so
#26 0x00000000006...