Re: Odd hang in python waiting for child; strace wakes hung process?
- Date: Thu, 22 Mar 2018 18:29:44 +0100
- From: Achim Gratz <Stromeko@xxxxxxxx>
- Subject: Re: Odd hang in python waiting for child; strace wakes hung process?
Dan Kegel writes:
> 1) kill -CONT the-pid doesn't do anything, nor does kill -9. It's
> truly wedged.
No, you send CONT to all processes (like 'pkill -CONT .'), it seems that
this gets whatever was wedged enough of a kick to retry or time out and
then it (often, not always) it seems to start reaping processes again
and the <defuncts> start to vanish. You can tell you have one of these
when just doing a ps takes much longer than usual when it hits those
+<[Q+ Matrix-12 WAVE#46+305 Neuron microQkb Andromeda XTk Blofeld]>+
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