src/http/ngx_http_upstream.c:2839: error: Integer Overflow L1
  (0 - 1):unsigned32 by call to `ngx_http_upstream_finalize_request`.

src/http/ngx_http_upstream.c:2836:9: Assignment
2834.     if (u->resolved && u->resolved->ctx) {
2835.         ngx_resolve_name_done(u->resolved->ctx);
2836.         u->resolved->ctx = NULL;
              ^
2837.     }
2838. 

src/http/ngx_http_upstream.c:2839:5: Call
2837.     }
2838. 
2839.     ngx_http_upstream_finalize_request(r, u, NGX_DONE);
          ^
2840. }
2841. 

src/http/ngx_http_upstream.c:2843:1: Parameter `r->main->count`
  2841. 
  2842. 
  2843. static void
        ^
  2844. ngx_http_upstream_finalize_request(ngx_http_request_t *r,
  2845.     ngx_http_upstream_t *u, ngx_int_t rc)

src/http/ngx_http_upstream.c:2952:5: Call
  2950.     }
  2951. 
  2952.     ngx_http_finalize_request(r, rc);
            ^
  2953. }
  2954. 

src/http/ngx_http_request.c:1847:1: Parameter `r->main->count`
    1845. 
    1846. 
    1847. void
          ^
    1848. ngx_http_finalize_request(ngx_http_request_t *r, ngx_int_t rc)
    1849. {

src/http/ngx_http_request.c:1886:13: Call
    1884.         || c->error)
    1885.     {
    1886.         if (ngx_http_post_action(r) == NGX_OK) {
                      ^
    1887.             return;
    1888.         }

src/http/ngx_http_request.c:2846:1: <LHS trace>
2844. 
2845. 
2846. static ngx_int_t
      ^
2847. ngx_http_post_action(ngx_http_request_t *r)
2848. {

src/http/ngx_http_request.c:2846:1: Parameter `r->main->count`
      2844. 
      2845. 
      2846. static ngx_int_t
            ^
      2847. ngx_http_post_action(ngx_http_request_t *r)
      2848. {

src/http/ngx_http_request.c:2860:5: Binary operation: (0 - 1):unsigned32 by call to `ngx_http_upstream_finalize_request` 
      2858.                    "post action: \"%V\"", &clcf->post_action);
      2859. 
      2860.     r->main->count--;
                ^
      2861. 
      2862.     r->http_version = NGX_HTTP_VERSION_9;
