nginx-0.5.32 crashed

[Denis Erygin]

src/http/ngx_http_upstream.c: [1890, 1898]:
. . .
if (ngx_event_pipe(p, ev->write) == NGX_ABORT)
{
   if (downstream->destroyed) {
      return;
   }

   ngx_http_upstream_finalize_request(r, u, 0);
   return;
}
. . .

Нормально ли, когда ev->write < 0 ?
например ev->write = -791621424