src/http/modules/ngx_http_upstream_random_module.c:291: error: Uninitialized Value
  The value read from m was never initialized.

src/http/modules/ngx_http_upstream_random_module.c:291:5: 
289.     ngx_http_upstream_rr_peers_unlock(peers);
290. 
291.     rrp->tried[n] |= m;
         ^
292. 
293.     return NGX_OK;
