#926426: load a static file in system_check_http_request() to avoid deadlocks on single threaded PHP workers.

From: Damien Tournoud <damien@commerceguys.com>


---
 system/system.module |    6 ++++--
 1 files changed, 4 insertions(+), 2 deletions(-)

diff --git modules/system/system.module modules/system/system.module
index a9bb5d9..c4c30d8 100644
--- modules/system/system.module
+++ modules/system/system.module
@@ -3220,8 +3220,10 @@ function system_time_zones($blank = NULL) {
  *  TRUE if this installation can issue HTTP requests.
  */
 function system_check_http_request() {
-  // Try to get the content of the front page via drupal_http_request().
-  $result = drupal_http_request(url('', array('absolute' => TRUE)), array('max_redirects' => 0));
+  global $base_url;
+  // Try to get the content of the front page via drupal_http_request(). Use
+  // a static file to avoid deadlocking single-threaded PHP processes.
+  $result = drupal_http_request($base_url . '/misc/drupal.js', array('max_redirects' => 0));
   // We only care that we get a http response - this means that Drupal
   // can make a http request.
   $works = isset($result->code) && ($result->code >= 100) && ($result->code < 600);