From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757427AbZBZPvq (ORCPT ); Thu, 26 Feb 2009 10:51:46 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1756512AbZBZPvf (ORCPT ); Thu, 26 Feb 2009 10:51:35 -0500 Received: from yx-out-2324.google.com ([74.125.44.29]:10037 "EHLO yx-out-2324.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756450AbZBZPve (ORCPT ); Thu, 26 Feb 2009 10:51:34 -0500 DomainKey-Signature: a=rsa-sha1; c=nofws; d=googlemail.com; s=gamma; h=mime-version:reply-to:in-reply-to:references:date:message-id :subject:from:to:cc:content-type:content-transfer-encoding; b=gixg/2aDp0H3wvCBtCEgXEjnXEYf8HT84bVPzgrRc3NkF2+lFnEdzuH7SbJ4jl+Th+ 0y4oJoUVJuVtqE/N6OvCCJR4WR8fGgcmMl4ETi2Bv834H9A1WwF8egTT8+hgD/wU/hcE 8Zp0JaFad4RGxC9YGoTnhZkfGRTkJsjXmfRvg= MIME-Version: 1.0 Reply-To: petkovbb@gmail.com In-Reply-To: <200902261529.43554.bzolnier@gmail.com> References: <200902260229.n1Q2T2lY006773@www262.sakura.ne.jp> <200902261529.43554.bzolnier@gmail.com> Date: Thu, 26 Feb 2009 16:51:30 +0100 Message-ID: <9ea470500902260751t4221d04cm839765a93300d861@mail.gmail.com> Subject: Re: linux-next-20090225: ide-cd triggers BUG at arch/x86/mm/ioremap.c:80! From: Borislav Petkov To: Bartlomiej Zolnierkiewicz Cc: Tetsuo Handa , linux-kernel@vger.kernel.org Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi, On Thu, Feb 26, 2009 at 3:29 PM, Bartlomiej Zolnierkiewicz wrote: > On Thursday 26 February 2009, Tetsuo Handa wrote: >> 2.6.29-rc6 is OK. > > Could you try to narrow down the issue by bisecting linux-next? Can you also apply the following patch and send us the output? Thanks. -- diff --git a/drivers/ide/ide-cd.c b/drivers/ide/ide-cd.c index 9e19aec..fca6e64 100644 --- a/drivers/ide/ide-cd.c +++ b/drivers/ide/ide-cd.c @@ -918,6 +918,12 @@ static ide_startstop_t ide_cd_do_request(ide_drive_t *drive, struct request *rq, ide_init_sg_cmd(&cmd, blk_fs_request(rq) ? (rq->nr_sectors << 9) : rq->data_len); + + blk_dump_rq_flags(rq, "mapping rq to sg"); + + if ((unsigned long)rq->data < PAGE_OFFSET) + dump_stack(); + ide_map_sg(drive, &cmd); return ide_issue_pc(drive, &cmd); -- Regards/Gruss, Boris