这个错误表示在Swoole中使用ProcessPool::spawn()方法创建子进程时，fork()系统调用失败了。错误消息中的"Resource temporarily unavailable"表示资源暂时不可用，错误码为11。

最近开发新项目 服务端口5w 起 , 但是总是出现端口被占用...

问题代码

===================================================================
 [FATAL ERROR]: all coroutines (count: 1) are asleep - deadlock!
===================================================================

 [Coroutine-1]
--------------------------------------------------------------------
#0  Swoole\Coroutine\Http\Client->recv() called at [/opt/webserver/vendor/swlib/saber/src/WebSocket.php:102]
#1  Swlib\Saber\WebSocket->recv() called at [/opt/webserver/script/src/Task/BinanceContract.php:133]
#2  Task\Test->init() called at [/opt/webserver/script/src/Task/BootScript.php:56]

昨天服务出了问题，生产环境代码需要优化