From mboxrd@z Thu Jan 1 00:00:00 1970 Received: with ECARTIS (v1.0.0; list linux-mips); Fri, 28 Mar 2008 14:43:53 +0100 (CET) Received: from relay01.mx.bawue.net ([193.7.176.67]:15835 "EHLO relay01.mx.bawue.net") by lappi.linux-mips.net with ESMTP id S528721AbYC1Nnt (ORCPT ); Fri, 28 Mar 2008 14:43:49 +0100 Received: from lagash (intrt.mips-uk.com [194.74.144.130]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by relay01.mx.bawue.net (Postfix) with ESMTP id 4119548918; Fri, 28 Mar 2008 14:43:18 +0100 (CET) Received: from ths by lagash with local (Exim 4.69) (envelope-from ) id 1JfErV-000643-D9; Fri, 28 Mar 2008 13:43:17 +0000 Date: Fri, 28 Mar 2008 13:43:17 +0000 From: Thiemo Seufer To: Larry Stefani Cc: linux-mips@linux-mips.org Subject: Re: SB1250 locking up in init on current 2.6.16 kernel Message-ID: <20080328134317.GA21099@networkno.de> References: <20080324203311.GB15294@linux-mips.org> <926775.30590.qm@web38810.mail.mud.yahoo.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <926775.30590.qm@web38810.mail.mud.yahoo.com> User-Agent: Mutt/1.5.17+20080114 (2008-01-14) Return-Path: X-Envelope-To: <"|/home/ecartis/ecartis -s linux-mips"> (uid 0) X-Orcpt: rfc822;linux-mips@linux-mips.org Original-Recipient: rfc822;linux-mips@linux-mips.org X-archive-position: 18693 X-ecartis-version: Ecartis v1.0.0 Sender: linux-mips-bounce@linux-mips.org Errors-to: linux-mips-bounce@linux-mips.org X-original-sender: ths@networkno.de Precedence: bulk X-list: linux-mips Larry Stefani wrote: > Hi Ralf, > > I used git bisect and narrowed the lockup to the > "[MIPS] Retire flush_icache_page from mm use." patch > (see git results below). This is consistent with my > earlier testing and what Thiemo reported March 3 on > the linux.debian.kernel list. I tried his patch (mark > pages tainted by PIO IDE as dirty) on 2.6.16.60, but > it didn't prevent the lockup. ISTR I got 2.6.16.60 to work by always enabling the cache flush in ide.h (it is currently only run to clean out aliases). Keep in mind that this is a crude workaround on top of other cache code hacks for the SB-1. Thiemo