[issue30225] EBADF error on x86 Tiger 3.x buildbot

[David Bolen]

David Bolen added the comment:

In running the test under a local build, the issue is very repeatable, but I believe it's actually due to slow process startup rather than a quick exit.

That is, adding a brief sleep after process creation and just before the Request() call seems to fix the problem.  I'm guessing the buildbot is sluggish enough that it just takes a bit longer for the process to start and be ready to be used.  

Whether or not that's purely a machine or test problem, or whether it means that perhaps subprocess.Popen() is returning sooner than it should with a process that isn't ready yet is unclear.  (Or even if subprocess can tell)

With the machine fairly idle, it looks like the minimum workable delay is about 200ms - probably something a bit longer would be safer under load, if looking for a quick workaround.

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue30225>
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