From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756282AbYEIVzi (ORCPT ); Fri, 9 May 2008 17:55:38 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1750816AbYEIVzb (ORCPT ); Fri, 9 May 2008 17:55:31 -0400 Received: from 74-93-104-97-Washington.hfc.comcastbusiness.net ([74.93.104.97]:51450 "EHLO sunset.davemloft.net" rhost-flags-OK-FAIL-OK-OK) by vger.kernel.org with ESMTP id S1750735AbYEIVza (ORCPT ); Fri, 9 May 2008 17:55:30 -0400 Date: Fri, 09 May 2008 14:55:24 -0700 (PDT) Message-Id: <20080509.145524.193685795.davem@davemloft.net> To: jengelh@medozas.de Cc: linux-kernel@vger.kernel.org, adaplas@pol.net, hpa@zytor.com, alan@lxorguk.ukuu.org.uk, akpm@linux-foundation.org, torvalds@linux-foundation.org Subject: Re: 2.6.26-rcX VC console scrolling regression From: David Miller In-Reply-To: References: <20080508.232602.193723628.davem@davemloft.net> X-Mailer: Mew version 5.2 on Emacs 22.1 / Mule 5.0 (SAKAKI) 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 From: Jan Engelhardt Date: Fri, 9 May 2008 21:24:20 +0200 (CEST) > > On Friday 2008-05-09 08:26, David Miller wrote: > >> My guess is that you see the effects of incomplete font table/position > >> switching, something along the lines a `cat /dev/urandom` would cause. > >> Using the very same kernel and boot params (vga=791 or anything to > >> switch it to fbcon), I cannot trigger the problem on opensuse. > > > >Jan, there is code in drivers/video/console/fbcon.c:fbcon_do_set_font() > >which makes changes to vc->vc_video_erase_char, maybe that code needs > >to update the new vc->vc_scrl_erase_char you added? > > > >It would be nice if you could audit the tree to see if any other cases > >have been missed like this as well. > > > Try this patch please. That seems to fix the bug, thanks Jan. Acked-by: David S. Miller