From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: "Theodore Ts'o" <tytso@mit.edu>
Cc: Ryan Arnold <rsa@us.ibm.com>, Andrew Morton <akpm@osdl.org>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] hvc_console fix to protect hvc_write against ldisc write after hvc_close
Date: Wed, 15 Sep 2004 22:36:13 +0100 [thread overview]
Message-ID: <1095284172.20754.5.camel@localhost.localdomain> (raw)
In-Reply-To: <20040915204107.GA26776@thunk.org>
On Mer, 2004-09-15 at 21:41, Theodore Ts'o wrote:
> The current (I can't speak to what Alan Cox is going to change) rules
> with tty drivers is that tty drivers are supposed to close the line
> discpline in their close routines.
That has no actual effect in the real world because the ldisc can in
part be running on another processor at the same time in another
function. This is a crash case seen on 2.4 in the real world.
Alan
next prev parent reply other threads:[~2004-09-15 22:40 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-09-15 18:43 [PATCH] hvc_console fix to protect hvc_write against ldisc write after hvc_close Ryan Arnold
2004-09-15 19:20 ` Alan Cox
2004-09-15 21:23 ` Ryan Arnold
2004-09-15 20:41 ` Theodore Ts'o
2004-09-15 21:36 ` Alan Cox [this message]
2004-09-15 22:35 ` Ryan Arnold
2004-09-24 1:15 ` ldisc writes during tty release_dev() causing problems Ryan Arnold
2004-09-24 12:40 ` Alan Cox
2004-09-24 16:18 ` Ryan Arnold
2004-09-24 15:30 ` Alan Cox
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