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Message-ID: <23d3cd65794886745e2070a1d1b74013418b0bd8.camel@dontech.dk>
Subject: Re: fork: Resource temporarily unavailable errors after upgrading cygwin packages
From: Peter Dons Tychsen <pdt AT dontech DOT dk>
Reply-To: pdt AT dontech DOT dk
To: David Finnie <david DOT finnie68 AT gmail DOT com>, cygwin AT cygwin DOT com
Date: Mon, 10 Feb 2020 21:58:09 +0100
In-Reply-To: <d5109f77-9d73-fd68-fac6-1119037c8468@gmail.com>
References: <6d43c714-c4ba-4f0c-9913-cb8453129c85 AT gmail DOT com>	 <d24aa066-ab3d-9ff0-215a-0a1ed1ec2e5d AT cornell DOT edu>	 <93562f34-3a14-0c10-cb57-1ae861307d82 AT gmail DOT com>	 <f4a808cf-d129-f6ce-0da8-674cf88a71ad AT gmail DOT com>	 <810b0c97ee0697c06bdaa4dff4081bb502bc46ab DOT camel AT dontech DOT dk>	 <CACSsrOzmexPqVeAoZigrkR4Tv6sWa-506Ui8UzsgLcTSBotgLw AT mail DOT gmail DOT com>	 <9ed4b0776323e4a0f62191121715d52a0429bdb2 DOT camel AT dontech DOT dk>	 <d5109f77-9d73-fd68-fac6-1119037c8468 AT gmail DOT com>
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Hi all,

On Thu, 2020-02-06 at 09:18 +1100, David Finnie wrote:
> That would be awesome if you could create a small test case

OK, i put together a test-case:

1) Put attached makefile somewhere
2) Download https://nuwen.net/files/mingw/mingw-17.1-without-git.exe
and unzip it in same place.
3) Now run "make create"
4) Now run "make clean && make -j32". Try a couple of times.

-----------

a) If running via mintty - it hangs fairly quickly, and the task-
manager will show hanging gcc's and sh's.

b) If running in normal terminal via "bash --login" shortcut,
everything is ok. Ran 100s of times with no error.

-----------
It seems to be related to the fact the is is spawning non-cygwin
programs. If i do the same test with normal GCC (default cygwin gcc)
then everything is fine.

My guess would be that this is related to the pseudo-console changes.
I think it relates to an terminal I/O problem when the tasks are
starting/stopping.

Thanks,

/pedro



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