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Date: Sun, 17 Mar 2024 12:01:55 +0300
To: Takashi Yano <takashi DOT yano AT nifty DOT ne DOT jp>
Cc: cygwin AT cygwin DOT com
Subject: Re: Bogus exit code 127 from a child process
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From: Alexey Izbyshev via Cygwin <cygwin AT cygwin DOT com>
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On 2024-03-17 11:44, Takashi Yano wrote:
> On Sun, 17 Mar 2024 11:14:16 +0300
> Alexey Izbyshev wrote:
>> 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.
> 
> Could you please try latest cygwin 3.6.0 (TEST) ?

Tested with 3.6.0-0.82.gfc691d0246b9 on Windows 10 22H2 x64, the problem 
still occurs.

Thanks,
Alexey

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