--- a/src/os/unix/ngx_linux_init.c
+++ b/src/os/unix/ngx_linux_init.c
@@ -12,8 +12,6 @@
 u_char  ngx_linux_kern_ostype[50];
 u_char  ngx_linux_kern_osrelease[50];
 
-int     ngx_linux_rtsig_max;
-
 
 static ngx_os_io_t ngx_linux_io = {
     ngx_unix_recv,
@@ -46,32 +44,6 @@ ngx_os_specific_init(ngx_log_t *log)
     (void) ngx_cpystrn(ngx_linux_kern_osrelease, (u_char *) u.release,
                        sizeof(ngx_linux_kern_osrelease));
 
-#if (NGX_HAVE_RTSIG)
-    {
-    int        name[2];
-    size_t     len;
-    ngx_err_t  err;
-
-    name[0] = CTL_KERN;
-    name[1] = KERN_RTSIGMAX;
-    len = sizeof(ngx_linux_rtsig_max);
-
-    if (sysctl(name, 2, &ngx_linux_rtsig_max, &len, NULL, 0) == -1) {
-        err = ngx_errno;
-
-        if (err != NGX_ENOTDIR && err != NGX_ENOSYS) {
-            ngx_log_error(NGX_LOG_ALERT, log, err,
-                          "sysctl(KERN_RTSIGMAX) failed");
-
-            return NGX_ERROR;
-        }
-
-        ngx_linux_rtsig_max = 0;
-    }
-
-    }
-#endif
-
     ngx_os_io = ngx_linux_io;
 
     return NGX_OK;
@@ -83,9 +55,4 @@ ngx_os_specific_status(ngx_log_t *log)
 {
     ngx_log_error(NGX_LOG_NOTICE, log, 0, "OS: %s %s",
                   ngx_linux_kern_ostype, ngx_linux_kern_osrelease);
-
-#if (NGX_HAVE_RTSIG)
-    ngx_log_error(NGX_LOG_NOTICE, log, 0, "sysctl(KERN_RTSIGMAX): %d",
-                  ngx_linux_rtsig_max);
-#endif
 }