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Re: Groff bug: echo foo | groff -Pbar

From: hackerb9
Subject: Re: Groff bug: echo foo | groff -Pbar
Date: Mon, 28 Sep 2020 13:30:50 -0700

I think there may be a race condition caused by the groff pipeline. Just to
be sure, please try

    echo foo  |  troff >&-

My earlier command was causing troff to dump core when its stdout was
closed (by grops exiting) before it finished writing.


On Mon, Sep 28, 2020 at 7:04 AM G. Branden Robinson <> wrote:

> At 2020-09-28T03:44:41+1000, John Gardner wrote:
> > The error I get with groff 1.22.4 is different:
> >
> > $ echo foo | groff -Pbar
> > grops: can't open file 'bar'
> I can't reproduce this either, with groff 1.22.4 (Debian) or groff git
> Regards,
> Branden

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