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Date:	Sun, 17 Mar 2024 11:14:16 +0300
To:	cygwin AT cygwin DOT com
Subject:	Bogus exit code 127 from a child process
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From:	Alexey Izbyshev via Cygwin <cygwin AT cygwin DOT com>
Reply-To:	Alexey Izbyshev <izbyshev AT ispras DOT ru>
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Hello,

I've been getting occasional "Error 127" from make -jN on seemingly 
random jobs. After reducing the set of jobs and eventually eliminating 
make, I've arrived to this one-liner:

bash -c 'true & true & wait -n || echo 1: $? && wait -n || echo 2: $?'

When run repeatedly, the second "wait -n" often reports 127.

I've reproduced this in the following environments:

* Cygwin 3.5.1, Windows 10 22H2 x64
* Cygwin 3.4.6, Windows 10 22H2 x64 and Windows 7 x64

I couldn't reproduce it in Cygwin 3.3.6 (WOW64) on Windows 7 x64.

Thanks,
Alexey


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