nginx 0.4.14 *) Feature: the "proxy_pass_error_message" directive in IMAP/POP3 proxy. *) Feature: now configure detects system PCRE library on FreeBSD, Linux, and NetBSD. *) Bugfix: ngx_http_perl_module did not work with perl built with the threads support; bug appeared in 0.3.38. *) Bugfix: ngx_http_perl_module did not work if perl was called recursively. *) Bugfix: nginx ignored a host name in an request line. *) Bugfix: a worker process may got caught in an endless loop, if a FastCGI server sent too many data to the stderr. *) Bugfix: the $upstream_response_time variable may be negative if the system time was changed backward. *) Bugfix: the "Auth-Login-Attempt" parameter was not sent to IMAP/POP3 proxy authentication server when POP3 was used. *) Bugfix: a segmentation fault might occur if connect to IMAP/POP3 proxy authentication server failed.

--- a/src/os/unix/ngx_posix_init.c
+++ b/src/os/unix/ngx_posix_init.c
@@ -30,6 +30,8 @@ ngx_os_io_t ngx_os_io = {
 ngx_int_t
 ngx_os_init(ngx_log_t *log)
 {
+    ngx_uint_t  n;
+
 #if (NGX_HAVE_OS_SPECIFIC_INIT)
     if (ngx_os_specific_init(log) != NGX_OK) {
         return NGX_ERROR;
@@ -41,6 +43,10 @@ ngx_os_init(ngx_log_t *log)
     ngx_pagesize = getpagesize();
     ngx_cacheline_size = NGX_CPU_CACHE_LINE;
 
+    n = ngx_pagesize;
+
+    for (n = ngx_pagesize; n >>= 1; ngx_pagesize_shift++) { /* void */ }
+
     if (ngx_ncpu == 0) {
         ngx_ncpu = 1;
     }