src/http/ngx_http_upstream.c:875: error: Integer Overflow L2
  ([0, +oo] - 1):unsigned32 by call to `ngx_http_upstream_finalize_request`.

src/http/ngx_http_upstream.c:870:9: Call
868. 
869.     if (ctx->state) {
870.         ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
             ^
871.                       "%V could not be resolved (%i: %s)",
872.                       &ctx->name, ctx->state,

src/core/ngx_log.c:76:1: Parameter `log->file->fd`
  74. #if (NGX_HAVE_VARIADIC_MACROS)
  75. 
  76. void
      ^
  77. ngx_log_error_core(ngx_uint_t level, ngx_log_t *log, ngx_err_t err,
  78.     const char *fmt, ...)

src/http/ngx_http_upstream.c:875:9: Call
873.                       ngx_resolver_strerror(ctx->state));
874. 
875.         ngx_http_upstream_finalize_request(r, u, NGX_HTTP_BAD_GATEWAY);
             ^
876.         return;
877.     }

src/http/ngx_http_upstream.c:2963:1: Parameter `r->main->count`
  2961. 
  2962. 
  2963. static void
        ^
  2964. ngx_http_upstream_finalize_request(ngx_http_request_t *r,
  2965.     ngx_http_upstream_t *u, ngx_int_t rc)

src/http/ngx_http_upstream.c:3094:5: Call
  3092.     }
  3093. 
  3094.     ngx_http_finalize_request(r, rc);
            ^
  3095. }
  3096. 

src/http/ngx_http_request.c:1912:1: Parameter `r->main->count`
    1910. 
    1911. 
    1912. void
          ^
    1913. ngx_http_finalize_request(ngx_http_request_t *r, ngx_int_t rc)
    1914. {

src/http/ngx_http_request.c:1951:13: Call
    1949.         || c->error)
    1950.     {
    1951.         if (ngx_http_post_action(r) == NGX_OK) {
                      ^
    1952.             return;
    1953.         }

src/http/ngx_http_request.c:2920:1: <LHS trace>
2918. 
2919. 
2920. static ngx_int_t
      ^
2921. ngx_http_post_action(ngx_http_request_t *r)
2922. {

src/http/ngx_http_request.c:2920:1: Parameter `r->main->count`
      2918. 
      2919. 
      2920. static ngx_int_t
            ^
      2921. ngx_http_post_action(ngx_http_request_t *r)
      2922. {

src/http/ngx_http_request.c:2938:5: Binary operation: ([0, +oo] - 1):unsigned32 by call to `ngx_http_upstream_finalize_request` 
      2936.                    "post action: \"%V\"", &clcf->post_action);
      2937. 
      2938.     r->main->count--;
                ^
      2939. 
      2940.     r->http_version = NGX_HTTP_VERSION_9;
