Re: [PATCH] test: redirect STDIN from /dev/tty

Subject: Re: [PATCH] test: redirect STDIN from /dev/tty

Date: Tue, 21 May 2019 22:56:50 -0300

To: Tomi Ollila,


From: David Bremner

Tomi Ollila <> writes:

> Without this stdin may be anything that parent process provided for it.
> Test processes might have tried to read something from it, which would
> have caused undeterministic behavior.
> E.g. gdb(1) tries to do tty related ioctls on fd 0 (and fd 1 and fd 2,
> but those are redirected to 'test.output' before test runs).
> ---
> Hopefully this fixes the parallel problems -- In case of moreutils parallel
> only stdout and stderr are captured and all other fd's left untouched
> (provided I read web namual correctly). With GNU parallel docs did not
> help -- but as we pipe $TESTS to parallel in that case things might be
> even more complicated there (i don't undersand why but anyway)

I can confirm that this seems to fix the parallel test problems with
moreutils parallel and GNU.

I think I'm leaning towards this fix between the two, but I'll sleep on
it and decide tommorow.

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