UWSGI调用随机注入到Python调用堆栈？

uWSGI call randomly injected into Python call stack?(UWSGI调用随机注入到Python调用堆栈？)

问题描述

我正试图找出一个奇怪的错误(see here)--基本上我看到意外的数据库断开。为了进行调查，我在Django中的断开代码中添加了调用堆栈转储-现在我比以往任何时候都更困惑...

我在调用堆栈中看到的是一个完全出乎意料的调用序列，例如：

...
File "/deployment/v_env/lib/python3.8/site-packages/qrcode/base.py", line 326, in __mod__
  for item, other_item in zip(self, other)]
File "/deployment/v_env/lib/python3.8/site-packages/qrcode/base.py", line 303, in __iter__
  return iter(self.num)
File "/deployment/v_env/lib/python3.8/site-packages/django/http/response.py", line 292, in close
  signals.request_finished.send(sender=self._handler_class)
File "/deployment/v_env/lib/python3.8/site-packages/django/dispatch/dispatcher.py", line 180, in send
  return [
...

这里，我使用的二维码库突然跳转到HttpResponse.lose()。另一个：

...
File "/deployment/v_env/lib/python3.8/site-packages/django/db/models/query.py", line 1268, in _insert
  query = sql.InsertQuery(self.model, ignore_conflicts=ignore_conflicts)
File "/deployment/v_env/lib/python3.8/site-packages/django/db/models/sql/subqueries.py", line 141, in __init__
  super().__init__(*args, **kwargs)
File "/deployment/v_env/lib/python3.8/site-packages/django/http/response.py", line 292, in close
  signals.request_finished.send(sender=self._handler_class)
File "/deployment/v_env/lib/python3.8/site-packages/django/dispatch/dispatcher.py", line 180, in send
  return [
...

此处一些Django DB查询代码突然跳到HttpResponse.Close()。

此调用堆栈不可能是正确的-紧靠在Close()之上的代码不会调用该代码，也不会调用可能以某种方式绑定到错误对象的Close()方法。

现在，uWSGI可以从C运行时调用HttpResponse.Close()--我唯一能理解的是，这是在处理请求的过程中发生的，并且以某种方式出现在调用堆栈中。