linux-kernel - Re: TIOCGWINSZ retuns old pty size after receiving SIGWINCH

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Message-ID: <20081005130330.3cbb72d5@lxorguk.ukuu.org.uk>
Date:	Sun, 5 Oct 2008 13:03:30 +0100
From:	Alan Cox <alan@...rguk.ukuu.org.uk>
To:	Kanru Chen <koster@...ian.org.tw>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: TIOCGWINSZ retuns old pty size after receiving SIGWINCH

On Sun, 5 Oct 2008 19:39:44 +0800
Kanru Chen <koster@...ian.org.tw> wrote:

> Hi Alan,
> 
> Could you push a fix for this problem for .27 release? It seems many
> people encounter this if they compile with PREEMPT enabled and it's quite
> annoying.

The relevant fixes were pushed and are in the current -rc series kernels.
The tty mutex now locks the TIOCG/SWINSZ calls using the tty mutex lock
of the tty side of tty/pty pairs.

Alan
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