# Segfault in HEAD - Thread: https://externals.io/message/8840 - Original archive: https://news-web.php.net/php.internals/8840 - Started by Antony Dovgal on 2004-03-31T07:06:49+00:00 - Messages: 6 - Reply by email to internals@lists.php.net - More for agents: search with https://externals.io/search.md?q={query} · JSON API at https://externals.io/api · documentation at https://externals.io/llms.txt --- ## #8840 — Antony Dovgal — 2004-03-31T07:06:49+00:00 URL: https://externals.io/message/8840#8840 Hi all! This small script: x) { // yep, I know, it's infinite loop $this->foo(); } return $this->a; } function foo() { return $this->getA(); } } $test = new test; $test->getA(); ?> produces segfault in latest HEAD. A small part of backtrace(it's really huge) is below: Program received signal SIGSEGV, Segmentation fault. 0x40325455 in zend_fetch_obj_r_handler (execute_data=0xbf8000e0, opline=0x40f3a96c, op_array=0x40f39b84) at /home/tony/CVS/php-src/Zend/zend_execute.c:2120 2120 zend_fetch_property_address_read(&opline->result, &opline->op1, &opline->op2, EX(Ts), BP_VAR_R TSRMLS_CC); (gdb) bt #0 0x40325455 in zend_fetch_obj_r_handler (execute_data=0xbf8000e0, opline=0x40f3a96c, op_array=0x40f39b84) at /home/tony/CVS/php-src/Zend/zend_execute.c:2120 #1 0x403237ba in execute (op_array=0x40f39b84) at /home/tony/CVS/php-src/Zend/zend_execute.c:1391 #2 0x40326f19 in zend_do_fcall_common_helper (execute_data=0xbf800210, opline=0x40f3acc0, op_array=0x40f39d6c) at /home/tony/CVS/php-src/Zend/zend_execute.c:2728 #3 0x40327223 in zend_do_fcall_by_name_handler (execute_data=0x40f39b84, opline=0x40f3a970, op_array=0x40f3a970) at /home/tony/CVS/php-src/Zend/zend_execute.c:2810 #4 0x403237ba in execute (op_array=0x40f39d6c) at /home/tony/CVS/php-src/Zend/zend_execute.c:1391 #5 0x40326f19 in zend_do_fcall_common_helper (execute_data=0xbf800390, opline=0x40f3aa9c, op_array=0x40f39b84) at /home/tony/CVS/php-src/Zend/zend_execute.c:2728 #6 0x40327223 in zend_do_fcall_by_name_handler (execute_data=0x40f39b84, opline=0x40f3a970, op_array=0x40f3a970) at /home/tony/CVS/php-src/Zend/zend_execute.c:2810 #7 0x403237ba in execute (op_array=0x40f39b84) at /home/tony/CVS/php-src/Zend/zend_execute.c:1391 #8 0x40326f19 in zend_do_fcall_common_helper (execute_data=0xbf8004c0, opline=0x40f3acc0, op_array=0x40f39d6c) at /home/tony/CVS/php-src/Zend/zend_execute.c:2728 #9 0x40327223 in zend_do_fcall_by_name_handler (execute_data=0x40f39b84, opline=0x40f3a970, op_array=0x40f3a970) at /home/tony/CVS/php-src/Zend/zend_execute.c:2810 #10 0x403237ba in execute (op_array=0x40f39d6c) at /home/tony/CVS/php-src/Zend/zend_execute.c:1391 #11 0x40326f19 in zend_do_fcall_common_helper (execute_data=0xbf800640, opline=0x40f3aa9c, op_array=0x40f39b84) at /home/tony/CVS/php-src/Zend/zend_execute.c:2728 #12 0x40327223 in zend_do_fcall_by_name_handler (execute_data=0x40f39b84, opline=0x40f3a970, op_array=0x40f3a970) at /home/tony/CVS/php-src/Zend/zend_execute.c:2810 #13 0x403237ba in execute (op_array=0x40f39b84) at /home/tony/CVS/php-src/Zend/zend_execute.c:1391 .... --- WBR, Antony Dovgal aka tony2001 tony2001@phpclub.net || antony@dovgal.com --- ## #8841 — Derick Rethans — 2004-03-31T07:27:42+00:00 URL: https://externals.io/message/8840#8841 · In reply to: #8840 > Hi all! > > This small script: > > class test { > var $a = false; > var $x = false; > > function getA() { > if (!$this->x) { // yep, I know, it's infinite loop PHP always crashes on infinite loops as you might be aware off. You'll have to live with it. regards, Derick --- ## #8842 — Antony Dovgal — 2004-03-31T07:32:34+00:00 URL: https://externals.io/message/8840#8842 · In reply to: #8841 On Wed, 31 Mar 2004 09:27:42 +0200 (CEST) Derick Rethans wrote: > > > > […] > > PHP always crashes on infinite loops as you might be aware off. You'll > have to live with it. And there is no workarounds at all? (BTW, same results with PHP_4_3..) --- WBR, Antony Dovgal aka tony2001 tony2001@phpclub.net || antony@dovgal.com --- ## #8843 — Derick Rethans — 2004-03-31T07:45:38+00:00 URL: https://externals.io/message/8840#8843 · In reply to: #8842 > > […] > > And there is no workarounds at all? > (BTW, same results with PHP_4_3..) Just don't make infinite loops? :) Derick --- ## #8845 — Sterling Hughes — 2004-03-31T18:17:43+00:00 URL: https://externals.io/message/8840#8845 · In reply to: #8841 php5 shouldn't crash _at all_ within an infinite loop because we aren't in one big execution loop. -sterling > > > > […] > > PHP always crashes on infinite loops as you might be aware off. You'll > have to live with it. > > regards, > Derick --- ## #8846 — George Schlossnagle — 2004-03-31T18:22:41+00:00 URL: https://externals.io/message/8840#8846 · In reply to: #8845 > php5 shouldn't crash _at all_ within an infinite loop because we > aren't in one big execution loop. Why shouldn't this crash eventually? You still have to account for all the callers stacks. George