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To:	Jose Isaias Cabrera <jicman AT outlook DOT com>,
	Dale Lobb
	<Dale DOT Lobb AT bryanhealth DOT org>,
	tryandbuy via Cygwin <cygwin AT cygwin DOT com>
Subject:	RE: Fork errors
Thread-Topic:	Fork errors
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Date:	Wed, 6 Sep 2023 21:03:39 +0000
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From:	Jose Isaias Cabrera via Cygwin <cygwin AT cygwin DOT com>
Reply-To:	Jose Isaias Cabrera <jicman AT outlook DOT com>
Sender:	"Cygwin" <cygwin-bounces+archive-cygwin=delorie DOT com AT cygwin DOT com>

On September 6, 2023 5:01 PM, Jose Isaias Cabrera expressed:
> 
> 
> On September 6, 2023 2:52 PM, Dale Lobb expressed:
> >
> > Since upgrading to the latest version of Cygwin a few weeks ago on a
> > server I manage, I've been experiencing an issue with fork errors.
> > The Cygwin installation had not been updated for almost a year before
> > that.
> >
> > The issue happens every time a script is invoked that purges files
> > from some temporary directories, but never in the same place in the
> > script.  The script uses multiple calls to find -exec to remove files
> > over 10 days old from the directories.  Here is a typical error.
> > Sometime the issue will assert after just a  few tens of files
> > deleted, sometimes after hundreds or thousands of files have been
> > deleted:
> >
> > removed '/cygdrive/d/.../obfuscated.datedata.txt'
> > 1 [main] find 20066 dofork: child -1 - forked process 4068 died
> > unexpectedly, retry 0, exit code 0xC0000142, errno 11
> > find: cannot fork: Resource temporarily unavailable
> >
> > It also happens randomly at other times.  I've seen the bash shell
> > itself fail on the invocation of a mintty.  I've seen it happen on all
> > sorts of interactive commands entered from bash.
> >
> > Today, as a test, I updated all the installed Cygwin components.
> > One of the post installation scripts failed, so I re-exec'd it:
> >
> > $ ./postinstall/0p_update-info-dir.dash
> > Rebuilding info directory
> > 2 [main] dash 2059 dofork: child -1 - forked process 7676 died
> > unexpectedly, retry 0, exit code 0xC0000142, errno 11
> > ./postinstall/0p_update-info-dir.dash: 22: Cannot fork
> >
> > A second re-exec then worked fine.
> >
> > I've tried reinstalling all the components, and I've tried rebaseall.
> >
> > Is there anything else I can try, or troubleshooting steps to take?
> >
> > Best Regards,
> 
> Take a look at this:

Also, there are a bunch of hits on duckduckgo:

https://duckduckgo.com/?q=++++++++++find%3A+cannot+fork%3A+Resource+temporarily+unavailable+cygwin

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