Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S264037AbTFPXU6 (ORCPT ); Mon, 16 Jun 2003 19:20:58 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S264437AbTFPXU6 (ORCPT ); Mon, 16 Jun 2003 19:20:58 -0400 Received: from carisma.slowglass.com ([195.224.96.167]:33547 "EHLO phoenix.infradead.org") by vger.kernel.org with ESMTP id S264037AbTFPXU5 (ORCPT ); Mon, 16 Jun 2003 19:20:57 -0400 Date: Tue, 17 Jun 2003 00:34:49 +0100 (BST) From: James Simmons To: Robert Love cc: Gerhard Mack , Subject: Re: Linux 2.5.71 - random console corruption In-Reply-To: <1055799095.7069.120.camel@localhost> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 741 Lines: 18 > On Mon, 2003-06-16 at 14:27, James Simmons wrote: > > > Preempt and the VT console system are not friends. There are way to many > > global variables which have there states altered in many spots. > > So why is this not an SMP race, too? For userland<->kernel transactions we have the console_semaphore to protect us. It is also used for console_callback. The console_semaphore is not used internally to protect global variables :-( To do this properly would take quite a bit of work. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/