PHP 4.0 Bug #7369 Updated: call chdir() in function php_execute_script hangs httpd process

ID: 7369 User Update by: lrvazquez@megared.net.mx Status: Open Bug Type: Scripting Engine problem Description: call chdir() in function php_execute_script hangs httpd process I'm close.. I debug the looped proccess and I found that executing at line: result = OG(php_header_write)(str, str_length); I lost the tracking... I make a Crtl-C and the proccess is interrumped at chdir function.... The stack : (gdb) bt #0 php_ub_body_write_no_header ( str=0xc9c258 "bla bla (string omited) " ..., str_length=10148) at output.c:312 #1 0x827dc in php_ob_send () at output.c:253 #2 0x82238 in php_end_ob_buffer (send_buffer=1) at output.c:120 #3 0x8226c in php_end_ob_buffers (send_buffer=1) at output.c:133 #4 0xa94b4 in apache_php_module_main (r=0x0, display_source_mode=0) at sapi_apache.c:93 #5 0x31944 in send_php () #6 0x31988 in send_parsed_php () #7 0xf7ea4 in ap_invoke_handler () #8 0x1146bc in process_request_internal () #9 0x114740 in ap_process_request () #10 0x108198 in child_main () #11 0x108524 in make_child () #12 0x108648 in startup_children () #13 0x109038 in standalone_main () #14 0x109c34 in main () I keep debbuging... Previous Comments: --------------------------------------------------------------------------- [2000-10-20 12:44:57] lrvazquez@megared.net.mx No particular script generate this... I have apache 1.3.12 with php as static module and my scripts work fine, I have no problems with them... I have 3 avg requests per second and each httpd daemon use from 0.01% until 0.20% of the processor... At this point everything is fine, but suddently appears the follow message in the php log: "Maximum execution time of 30 seconds exceeded in Unknown on line 0". Very rare because don't tell the script name and the line, after this the daemon httpd use over 90% of processor, if another error appears then another process begin to eat the processor but share the load with the first one to complete about 90% and this occurs with each error of this kind. The scripts never fail, and I make the script generates the "Maximum execution time" error and the message says the script name and the line at this error occurs and no change in the load happens. I have another rare random error appears: No content-type in POST request in Unknown on line 0 Any idea ?? --------- stack (proccess looped )-------------------- (gdb) bt #0 0xff114cec in chdir () from /usr/lib/libc.so.1 #1 0x3484c in php_execute_script (primary_file=0xffbef6c0) at main.c:1140 #2 0xa94a4 in apache_php_module_main (r=0x0, display_source_mode=0) at sapi_apache.c:89 #3 0x31944 in send_php () #4 0x31988 in send_parsed_php () #5 0xf7ea4 in ap_invoke_handler () #6 0x1146bc in process_request_internal () #7 0x114740 in ap_process_request () #8 0x108198 in child_main () #9 0x108524 in make_child () #10 0x108648 in startup_children () #11 0x109038 in standalone_main () #12 0x109c34 in main () (gdb) quit ------- stack ( normal proccess ) ---------------- (gdb) bt #0 0xff11450c in __fcntl () from /usr/lib/libc.so.1 #1 0xff10f1b0 in s_fcntl () from /usr/lib/libc.so.1 #2 0x104064 in accept_mutex_on () #3 0x107b7c in child_main () #4 0x108524 in make_child () #5 0x108a9c in perform_idle_server_maintenance () #6 0x109300 in standalone_main () #7 0x109c34 in main () (gdb) quit ------- configure ---------------------------------- ./configure --with-apache=../apache_1.3.12 --enable-versioning --without-mysql --without-mysql --with-sybase=/usr/local/freetds --without-gd --enable-track-vars --with-system-regex --enable-trans-id --with-snmp --enable-ucd-snmp-hack ---------php.ini (Mostly) ---------------------------- engine = On short_open_tag = On asp_tags = Off precision = 14 y2k_compliance = Off output_buffering = On implicit_flush = Off allow_call_time_pass_reference = On safe_mode = Off safe_mode_exec_dir = safe_mode_allowed_env_vars = PHP_ safe_mode_protected_env_vars = LD_LIBRARY_PATH disable_functions = highlight.string = #DD0000 highlight.comment = #FF8000 highlight.keyword = #007700 highlight.bg = #FFFFFF highlight.default = #0000BB highlight.html = #000000 expose_php = On max_execution_time = 30 memory_limit = 8388608 error_reporting = E_ALL & ~E_NOTICE display_errors = Off log_errors = On track_errors = Off error_log = /var/log/gps/php warn_plus_overloading = Off variables_order = "EGPCS" register_globals = On register_argc_argv = On track_vars = On gpc_order = "GPC" magic_quotes_gpc = On magic_quotes_runtime= Off magic_quotes_sybase = Off auto_prepend_file = auto_append_file = default_mimetype = "text/html" include_path = doc_root = user_dir = upload_max_filesize = 2097152 extension_dir = ./ enable_dl = On define_syslog_variables = Off debugger.enabled = False sql.safe_mode = Off session.save_handler = files session.save_path = /tmp session.use_cookies = 0 session.name = sesid session.auto_start = 0 session.cookie_lifetime = 0 session.cookie_path = / session.cookie_domain = session.serialize_handler = php session.gc_probability = 1 session.gc_maxlifetime = 1440 session.referer_check = session.entropy_length = 0 session.entropy_file = session.cache_limiter = nocache session.cache_expire = 20 mssql.allow_persistent = On mssql.max_persistent = -1 mssql.max_links = -1 mssql.min_error_severity = 10 mssql.min_message_severity = 10 mssql.compatability_mode = Off zend_optimizer.optimization_level=15; zend_extension="/usr/local/lib/Zend/ZendOptimizer.so" --------------------------------------------------------------------------- Full Bug description available at: http://bugs.php.net/?id=7369