diff --git a/patches/nginx-1.2.3-dtrace.patch b/patches/nginx-1.2.3-dtrace.patch
index 2d4b08a..5c0aef8 100644
--- a/patches/nginx-1.2.3-dtrace.patch
+++ b/patches/nginx-1.2.3-dtrace.patch
@@ -454,12 +454,45 @@ index efbc244..8d81aab 100644
  
 diff --git a/src/dtrace/nginx.stp b/src/dtrace/nginx.stp
 new file mode 100644
-index 0000000..6420250
+index 0000000..5bae185
 --- /dev/null
 +++ b/src/dtrace/nginx.stp
-@@ -0,0 +1,236 @@
+@@ -0,0 +1,269 @@
 +/* tapset for nginx */
 +
++
++function ngx_indent(n, delta)
++{
++    s = ""
++    for (i = 0; i < n; i++) {
++        s .= delta
++    }
++
++    return s
++}
++
++
++function ngx_http_subreq_depth(r)
++{
++    depth = 0
++
++    for (pr = @cast(r, "ngx_http_request_t", "NGX_SBIN_PATH")->parent;
++         pr != 0;
++         pr = @cast(pr, "ngx_http_request_t", "NGX_SBIN_PATH")->parent)
++    {
++        depth++
++    }
++
++    return depth
++}
++
++
++function ngx_http_req_parent(r)
++{
++    return @cast(r, "ngx_http_request_s", "NGX_SBIN_PATH")->parent
++}
++
++
 +/* retrieve the request uri string from the ngx_http_request_t pointer */
 +function ngx_http_req_uri(r)
 +{
diff --git a/patches/nginx-1.3.4-dtrace.patch b/patches/nginx-1.3.4-dtrace.patch
index 2d4b08a..5c0aef8 100644
--- a/patches/nginx-1.3.4-dtrace.patch
+++ b/patches/nginx-1.3.4-dtrace.patch
@@ -454,12 +454,45 @@ index efbc244..8d81aab 100644
  
 diff --git a/src/dtrace/nginx.stp b/src/dtrace/nginx.stp
 new file mode 100644
-index 0000000..6420250
+index 0000000..5bae185
 --- /dev/null
 +++ b/src/dtrace/nginx.stp
-@@ -0,0 +1,236 @@
+@@ -0,0 +1,269 @@
 +/* tapset for nginx */
 +
++
++function ngx_indent(n, delta)
++{
++    s = ""
++    for (i = 0; i < n; i++) {
++        s .= delta
++    }
++
++    return s
++}
++
++
++function ngx_http_subreq_depth(r)
++{
++    depth = 0
++
++    for (pr = @cast(r, "ngx_http_request_t", "NGX_SBIN_PATH")->parent;
++         pr != 0;
++         pr = @cast(pr, "ngx_http_request_t", "NGX_SBIN_PATH")->parent)
++    {
++        depth++
++    }
++
++    return depth
++}
++
++
++function ngx_http_req_parent(r)
++{
++    return @cast(r, "ngx_http_request_s", "NGX_SBIN_PATH")->parent
++}
++
++
 +/* retrieve the request uri string from the ngx_http_request_t pointer */
 +function ngx_http_req_uri(r)
 +{