From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754073Ab1KGKYd (ORCPT ); Mon, 7 Nov 2011 05:24:33 -0500 Received: from earthlight.etchedpixels.co.uk ([81.2.110.250]:47894 "EHLO earthlight.etchedpixels.co.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752938Ab1KGKX5 (ORCPT ); Mon, 7 Nov 2011 05:23:57 -0500 Date: Mon, 7 Nov 2011 10:24:44 +0000 From: Alan Cox To: Ilya Zykov Cc: Paul Fulghum , Greg Kroah-Hartman , linux-kernel@vger.kernel.org, Alan Cox Subject: Re: PROBLEM: n_hdlc not atomic use tty->flags. Message-ID: <20111107102444.495f3436@lxorguk.ukuu.org.uk> In-Reply-To: <4EB7899E.5090006@ilyx.ru> References: <4EB7899E.5090006@ilyx.ru> X-Mailer: Claws Mail 3.7.9 (GTK+ 2.24.7; x86_64-redhat-linux-gnu) Face: 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 Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, 07 Nov 2011 11:32:46 +0400 Ilya Zykov wrote: > N_HDLC can spoil tty->flags because use not atomic operations on tty->flags. > I use n_hdlc line discipline and it happens. Acked-by: Alan Cox