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To:	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
Thread-Index:	Adng8mjswrahKs4JQcWqkRonWj3CGwAElQnQ
Date:	Wed, 6 Sep 2023 21:00:37 +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 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:

https://stackoverflow.com/questions/36399041/cygwin-update-cause-error-could-not-fork-child-process-resource-temporarily-u

it may not help, but it's something to look into.

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