linux-kernel - Re: 3.5.rc2 tty buffering bug ?

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Message-ID: <20120614174153.7f732e4a@pyramind.ukuu.org.uk>
Date:	Thu, 14 Jun 2012 17:41:53 +0100
From:	Alan Cox <alan@...rguk.ukuu.org.uk>
To:	Dave Jones <davej@...hat.com>
Cc:	Linux Kernel <linux-kernel@...r.kernel.org>
Subject: Re: 3.5.rc2 tty buffering bug ?

> How does 'begin' get printed a second time ?

You've been away from user space too long. Read the documentation for
stdio. Stdio is buffering, both forks get the buffer, both write it.

Try the experiment with write()

Alan
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