# segfault when running header? - Thread: https://externals.io/message/27889 - Original archive: https://news-web.php.net/php.internals/27889 - Started by Chris Malton on 2007-02-07T19:18:19+00:00 - Messages: 8 - 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 --- ## #27889 — Chris Malton — 2007-02-07T19:18:19+00:00 URL: https://externals.io/message/27889#27889 The `header()` function currently causes a segfault with CVS head sources. Here's a backtrace. #0 _zend_mm_free_int (heap=0xb302f0, p=0xb88b11b) at /root/php6/Zend/zend_alloc.c:1522 #1 0x00000000006a5d4f in destroy_op_array (op_array=0x2ae269e4d410) at /root/php6/Zend/zend_opcode.c:265 #2 0x00000000006e0085 in ZEND_INCLUDE_OR_EVAL_SPEC_CONST_HANDLER ( execute_data=0x7fff40c85d10) at /root/php6/Zend/zend_vm_execute.h:2039 #3 0x00000000006d7bbc in execute (op_array=0x2ae269e4ce30) at /root/php6/Zend/zend_vm_execute.h:92 #4 0x00000000006b0663 in zend_execute_scripts (type=8, retval=0xb88b11b, file_count=3) at /root/php6/Zend/zend.c:1630 #5 0x0000000000662883 in php_execute_script (primary_file=0x7fff40c883e0) at /root/php6/main/main.c:1951 #6 0x000000000073d394 in main (argc=2, argv=0x7fff40c8a648) at /root/php6/sapi/cgi/cgi_main.c:1660 I'll leave this up to a dev team person to sort. I am merely testing out php6 before a migration. Need any more info? Give me a buzz. Chris --- ## #27892 — Antony Dovgal — 2007-02-07T19:34:11+00:00 URL: https://externals.io/message/27889#27892 · In reply to: #27889 > The `header()` function currently causes a segfault with CVS head sources. > > I'll leave this up to a dev team person to sort. I am merely testing > out php6 before a migration. Migration to PHP6? > Need any more info? Give me a buzz. A reproduce case? -- Wbr, Antony Dovgal --- ## #27893 — Chris Malton — 2007-02-07T19:42:29+00:00 URL: https://externals.io/message/27889#27893 · In reply to: #27892 Antony Dovgal wrote: > > […] sources. > > […] When it is released... of course! This is testing server, and I'm seeing what gets broken by PHP6! > > […] WHOOPS - Turns out it isn't header that breaks it! The following code breaks php6 at the cmd line. In php5, it works fine. PHP 6 seems to segfault on empty strings! Chris --- ## #27894 — Antony Dovgal — 2007-02-07T19:57:44+00:00 URL: https://externals.io/message/27889#27894 > > […] > > WHOOPS - Turns out it isn't header that breaks it! > > The following code breaks php6 at the cmd line. > > if($_GET["ffcheck"]==""){ > $ua=$_SERVER['HTTP_USER_AGENT']; > if(strpos($ua,"MSIE")!==false){ *segfaults HERE* > //USER AGENT = MSIE! > header("Location: http://shared.cjsoftuk.dyndns.org/Firefox.php?URL=" > . urlencode("http://" . $_SERVER["HTTP_HOST"] . $_SERVER["REQUEST_URI"] > . "?" . $_SERVER["QUERY_STRING"])); > `exit()`; > } > } > ?> Could you please provide a short but complete reproduce case, so I can just copy/paste it and reproduce the problem. With this code I can see only "Notice: Undefined index: ffcheck in ..", but no segfault. Thank you. -- Wbr, Antony Dovgal --- ## #27895 — Chris Malton — 2007-02-07T20:16:48+00:00 URL: https://externals.io/message/27889#27895 · In reply to: #27894 Antony Dovgal wrote: > > > […] > > Could you please provide a short but complete reproduce case, so I can > just copy/paste it and reproduce the problem. > With this code I can see only "Notice: Undefined index: ffcheck in ..", > but no segfault. > > Thank you. > Please see below for a term session: root@SERVER:~/php6# cat /srv/www/include/firefox.inc root@SERVER:~/php6# php6 /srv/www/include/firefox.inc Segmentation fault (I know I shouldn't be root, but anyway it's over LAN). See my point? Chris --- ## #27896 — Antony Dovgal — 2007-02-07T20:33:38+00:00 URL: https://externals.io/message/27889#27896 · In reply to: #27895 > Please see below for a term session: > > root@SERVER:~/php6# cat /srv/www/include/firefox.inc > //if($_GET["ffcheck"]==""){ > //$ua=$_SERVER['HTTP_USER_AGENT']; > if(strpos($ua,"MSIE")!==false){ > //USER AGENT = MSIE! > header("Location: http://shared.cjsoftuk.dyndns.org/Firefox.php?URL=" > . urlencode("http://" . $_SERVER["HTTP_HOST"] . $_SERVER["REQUEST_URI"] > . "?" . $_SERVER["QUERY_STRING"])); > `exit()`; > } > //} > ?> > root@SERVER:~/php6# php6 /srv/www/include/firefox.inc > Segmentation fault > > (I know I shouldn't be root, but anyway it's over LAN). > > See my point? Still no segfault. Valgrind says "0 errors from 0 contexts". Try clean build using fresh CVS snapshot/checkout? -- Wbr, Antony Dovgal --- ## #27897 — Stanislav Malyshev — 2007-02-07T20:46:11+00:00 URL: https://externals.io/message/27889#27897 · In reply to: #27889 Chris Malton wrote: > The `header()` function currently causes a segfault with CVS head sources. > > Here's a backtrace. > > #0 _zend_mm_free_int (heap=0xb302f0, p=0xb88b11b) > at /root/php6/Zend/zend_alloc.c:1522 > #1 0x00000000006a5d4f in destroy_op_array (op_array=0x2ae269e4d410) > at /root/php6/Zend/zend_opcode.c:265 Doesn't seem to be in `header()` - `header()` doesn't do that. -- Stanislav Malyshev, Zend Products Engineer stas@zend.com http://www.zend.com/ --- ## #27898 — Chris Malton — 2007-02-07T21:03:16+00:00 URL: https://externals.io/message/27889#27898 · In reply to: #27896 Antony Dovgal wrote: > > > […] > > Still no segfault. Valgrind says "0 errors from 0 contexts". > Try clean build using fresh CVS snapshot/checkout? > You're right, I'm using my bad practises again (cvs update && make)! Seems to work with a reconfigure etc. Looks like something OTHER than the C code changed. I did get a lot of warnings during compiling this time though. Seems to work well otherwise. Chris