Bug #14860 Updated: PHP segfault in mysql driver

ID: 14860 Updated by: ronen@greyzone.com Reported By: aleigh@tessier.com Status: Open Bug Type: MySQL related Operating System: Solaris 8 PHP Version: 4.1.1 New Comment: This bug may be related to #16272. Ronen. Previous Comments: ------------------------------------------------------------------------ [2002-02-28 14:20:49] ronen@greyzone.com We've had the same exact problem - specifically with mysql_fetch_array(), and with the exact same symptoms. Not predictable, random occurance, etc'. We're running PHP 4.1.1 as a static build for Apache 1.3.22 on RedHat Linux 6.1. MySQL version is 3.23.42 ------------------------------------------------------------------------ [2002-01-12 09:25:24] biancardi@xware.it I'am having the same problem using apache2 and latest cvs. I see that ext/mysql/libmysql/ is always compiled with #define UNDEF_THREADS_HACK so producing a non thread safe mysql builtin library. Not using the builtin libmysql this problem is solved. Don't know if it's the same for win32 builds. I also noticed that build this libmysql the debug code is not turned off definig DBUG_OFF (?), is this intented ? ------------------------------------------------------------------------ [2002-01-04 17:14:49] aleigh@tessier.com Running PHP under continuity (pthread based), and serving phpMyAdmin 2.2.2, connecting remotely to a 3.23.47 mysql database. The server randomly crashes(trace below), but not always. The seg fault doesn't seem to be related to load, length of server operation, etc. It can crash on the 1st or 80th load of a phpMyAdmin page, but is fairly reproducable. If the server is restarted, may operate normally right away or it may not. Backtrace: current thread: t@15 =>[1] _db_return_(_line_ = 167U, _sfunc_ = 0xfdefa014, _sfile_ = 0xfdefa010, _slevel_ = 0xfdefa00c), line 827 in "dbug.c" [2] vio_read(vio = 0x210ec8, buf = 0x2ba220 "^C", size = 4), line 167 in "violite.c" [3] my_real_read(net = 0x2ba018, complen = 0xfdefa11c), line 457 in "net.c" [4] my_net_read(net = 0x2ba018), line 603 in "net.c" [5] net_safe_read(mysql = 0x2ba018), line 288 in "libmysql.c" [6] mysql_real_connect(mysql = 0x2ba018, host = 0x2c6140 "sugar.makintosh.com", user = 0x2777a8 "phpbugs", passwd = 0x257c58 "phpbugs", db = (nil), port = 3306U, unix_socket = (nil), client_flag = 8325U), line 1517 in "libmysql.c" [7] php_mysql_do_connect(ht = 3, return_value = 0x211038, this_ptr = (nil), return_value_used = 1, tsrm_ls = 0x11c058, persistent = 0), line 646 in "php_mysql.c" [8] zif_mysql_connect(ht = 3, return_value = 0x211038, this_ptr = (nil), return_value_used = 1, tsrm_ls = 0x11c058), line 698 in "php_mysql.c" [9] execute(op_array = 0x192370, tsrm_ls = 0x11c058), line 1590 in "zend_execute.c" [10] execute(op_array = 0x17bce8, tsrm_ls = 0x11c058), line 2133 in "zend_execute.c" [11] zend_execute_scripts(type = 8, tsrm_ls = 0x11c058, retval = (nil), file_count = 3, ...), line 814 in "zend.c" [12] php_execute_script(primary_file = 0xfdf05b28, tsrm_ls = 0x11c058), line 1307 in "main.c" [13] capi_module_main(request_context = 0x121830, tsrm_ls = 0x11c058), line 411 in "capi.c" [14] php4_execute(t = 0xb0348, opts = 0x3f058), line 456 in "capi.c" [15] dlFtransaction_process(class = 4, t = 0xb0348), line 336 in "dl.c" [16] disFhttp_handler(p = 0xb0348), line 69 in "dispatch.c" [17] thrFthread(arg = 0xb0218), line 281 in "tpool.c" ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/?id=14860&edit=1