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Re: Odd hang in python waiting for child; strace wakes hung process?
- From: Achim Gratz <Stromeko at nexgo dot de>
- To: cygwin at cygwin dot com
- Date: Thu, 22 Mar 2018 18:29:44 +0100
- Subject: Re: Odd hang in python waiting for child; strace wakes hung process?
- References: <CAPF-yOYzTr-jh__S_imaAcdk5Vf4tGD1xFLuTDu4-qsg_+HiCA@mail.gmail.com> <877eq5fedf.fsf@Rainer.invalid> <CAPF-yOb8O+Xhp3yi9wGFFJDvrSA0W24LZ+1adAcga--H7=qaZw@mail.gmail.com>
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
processes.
Regards,
Achim.
--
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