From: rvadmin at mail dot ru Operating system: Windows XP PHP version: 5.2.0 PHP Bug Type: cURL related Bug description: curl_multi, PHP/CLI crash, abnormally CPU load and Blue screen
Description: ------------ I use curl_multi on php command line version at Windows XP. After some time, php crashes (sometimes php.net, sometimes php_curl.dll). If php after 1 hour working normal, after 2 hours winsock crashes. My script is web crawler that downloading web pages and save them. I tried many builds of Windows XP, many versions of PHP5 and many computers!!!. On php 5.2.0 php not crashes, but windows crashes!!! (blue screen of death:). Usually I use 30 threads. I need help, because I dont know how to resolve this problem! Please, sorry for my bad English!!! Thank you. Reproduce code: --------------- <? /*Only part of script*/ $urls=array("http://php.net"/*.... and other*/); function read_header($ch, $string) { $length = strlen($string); if(substr($string,0,13)=="Content-Type:" && !preg_match("#(text/html|text/plain)#",$string)) return false; # if it is not HTML else return $length; } $mh = curl_multi_init(); foreach ($urls as $i => $url) { $conn[$i]=curl_init(); curl_setopt($conn[$i],CURLOPT_URL,$url); curl_setopt($conn[$i],CURLOPT_RETURNTRANSFER,1);//return data as string curl_setopt($conn[$i],CURLOPT_CONNECTTIMEOUT,30);//timeout curl_setopt($conn[$i], CURLOPT_TIMEOUT, 120); curl_setopt($conn[$i], CURLOPT_MAXREDIRS, 1); curl_setopt($conn[$i], CURLOPT_NOSIGNAL, 1); curl_setopt($conn[$i], CURLOPT_NOPROGRESS, 1); curl_setopt($conn[$i], CURLOPT_FAILONERROR, 1); curl_setopt($conn[$i],CURLOPT_SSL_VERIFYPEER,0); curl_setopt($conn[$i],CURLOPT_SSL_VERIFYHOST,0); curl_setopt($conn[$i],CURLOPT_HEADERFUNCTION, 'read_header'); curl_setopt($conn[$i],CURLOPT_FOLLOWLOCATION,1); curl_setopt($conn[$i],CURLOPT_USERAGENT,"Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1)"); curl_multi_add_handle ($mh,$conn[$i]); } do { $mrc=curl_multi_exec($mh,$active); } while ($mrc == CURLM_CALL_MULTI_PERFORM); while ($active and $mrc == CURLM_OK) { // wait for network if (curl_multi_select($mh) != -1) { // pull in any new data, or at least handle timeouts do { $mrc = curl_multi_exec($mh, $active); } while ($mrc == CURLM_CALL_MULTI_PERFORM); } } $ret=array(); foreach ($data as $i => $url) { if (($err = curl_error($conn[$i])) == '') { $c=curl_multi_getcontent($conn[$i]); if($c!==false) $ret[$i]=$c; } curl_multi_remove_handle($mh,$conn[$i]); curl_close($conn[$i]); } curl_multi_close($mh); /*...*/ ?> Expected result: ---------------- Curl and php/cli must work normal without high CPU loading when working long time and without winsock and php crashes. Actual result: -------------- Php crashes or (if php works long time) winsock crashes or windows XP (at PHP 5.2.0 ) blue screen crash -- Edit bug report at http://bugs.php.net/?id=40138&edit=1 -- Try a CVS snapshot (PHP 4.4): http://bugs.php.net/fix.php?id=40138&r=trysnapshot44 Try a CVS snapshot (PHP 5.2): http://bugs.php.net/fix.php?id=40138&r=trysnapshot52 Try a CVS snapshot (PHP 6.0): http://bugs.php.net/fix.php?id=40138&r=trysnapshot60 Fixed in CVS: http://bugs.php.net/fix.php?id=40138&r=fixedcvs Fixed in release: http://bugs.php.net/fix.php?id=40138&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=40138&r=needtrace Need Reproduce Script: http://bugs.php.net/fix.php?id=40138&r=needscript Try newer version: http://bugs.php.net/fix.php?id=40138&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=40138&r=support Expected behavior: http://bugs.php.net/fix.php?id=40138&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=40138&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=40138&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=40138&r=globals PHP 3 support discontinued: http://bugs.php.net/fix.php?id=40138&r=php3 Daylight Savings: http://bugs.php.net/fix.php?id=40138&r=dst IIS Stability: http://bugs.php.net/fix.php?id=40138&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=40138&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=40138&r=float No Zend Extensions: http://bugs.php.net/fix.php?id=40138&r=nozend MySQL Configuration Error: http://bugs.php.net/fix.php?id=40138&r=mysqlcfg