From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752526AbZEQQTc (ORCPT ); Sun, 17 May 2009 12:19:32 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751855AbZEQQTV (ORCPT ); Sun, 17 May 2009 12:19:21 -0400 Received: from mail-fx0-f158.google.com ([209.85.220.158]:64281 "EHLO mail-fx0-f158.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751618AbZEQQTU (ORCPT ); Sun, 17 May 2009 12:19:20 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=googlemail.com; s=gamma; h=date:from:to:cc:subject:message-id:mail-followup-to:references :mime-version:content-type:content-disposition:in-reply-to :user-agent; b=BxTtNakELqoMNEVsgURmXRQsdZzthu38Sqe9lIt+ZLuuDNK91oDl0fKZ72O342Q1he pqtGhahjf4MJ/ynaWPKus7VVGvBOPQNX2jEPxzeiLWOt6xFl/VtBKJnrC+DDCW/rPBd5 pbZFsj8CmF9VJizc+uou/HrWdyOIwNwkrw3UA= Date: Sun, 17 May 2009 18:19:16 +0200 From: Borislav Petkov To: Frederic Weisbecker Cc: Ingo Molnar , Helge Deller , Bartlomiej Zolnierkiewicz , "Rafael J. Wysocki" , Andrew Morton , Linux Kernel Mailing List , Kernel Testers List , Kyle McMartin Subject: Re: 2.6.30-rc6: Reported regressions from 2.6.29 Message-ID: <20090517161916.GA2976@liondog.tnic> Mail-Followup-To: Borislav Petkov , Frederic Weisbecker , Ingo Molnar , Helge Deller , Bartlomiej Zolnierkiewicz , "Rafael J. Wysocki" , Andrew Morton , Linux Kernel Mailing List , Kernel Testers List , Kyle McMartin References: <_AjETDMbIoL.A.DcH.RYzDKB@chimera> <20090517073327.GC1583@elte.hu> <20090517133210.GB4640@nowhere> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <20090517133210.GB4640@nowhere> User-Agent: Mutt/1.5.18 (2008-05-17) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi, On Sun, May 17, 2009 at 03:32:11PM +0200, Frederic Weisbecker wrote: > On Sun, May 17, 2009 at 09:33:27AM +0200, Ingo Molnar wrote: > > > Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=13297 > > > Subject : kernel panic - not syncing : fatel exception in interupt > > > Submitter : rob > > > Date : 2009-05-12 19:34 (5 days old) > > > References : http://marc.info/?l=linux-kernel&m=124216126903309&w=4 > > > > tainted crash, but probably legit. It does show some badness in an > > old-IDE legacy codepath: > > > > [] error_code+0x65/0x6c > > [] do_page_fault+0x0/0x1e0 > > [] ide_complete_rq+0xf/0x3b > > [] cdrom_newpc_intr+0x64d/0x6cd > > [] cdrom_newpc_intr+0x0/0x6cd > > [] ide_intr+0x109/0x161 > > [] handle_IRQ_event+0x54/0xc7 > > [] handle_level_irq+0x4f/0x85 > > [] handle_irq+0x17/0x20 > > [] do_IRQ+0x2b/0x66 > > [] common_interupt+0x29/0x30 > > [] cmd40x_init+0x2ac/0x38d > > [] default_idle+0x25/0x38 > > [] cpu_idle+0x19/0x2d > > [] start_kernel+0x23f/0x242 > > > > report subject line is too unspecific, it should be changed to > > something like: > > > > legacy IDE cmd40x related bootup crash > > > It seems the crash has been rewritten by hand. I don't see > any cmd40x_init(), I guess it's about cmd640 chipset, then > cmd640x_init() > > I don't see very recent changes in drivers/ide/cmd640.c > But there are some in drivers/ide/ide-io.c and drivers/ide/ide-cd.c > for this cycle. > > Especially commit a1f9a89c90b4ac143c5b6054c2a157572b272cd2 which > fixed in -rc2: > > Kernel Fault: Code=26 regs=8ed34c40 (Addr=00000024) > IASQ: 00000000 00000000 IAOQ: 1034b5ac 1034b5b0 > IIR: 4ab30048 ISR: 00000000 IOR: 00000024 > CPU: 0 CR30: 8ed34000 CR31: ffff55ff > ORIG_R28: 00000000 > IAOQ[0]: ide_complete_rq+0x2c/0x70 > IAOQ[1]: ide_complete_rq+0x30/0x70 > RP(r2): cdrom_newpc_intr+0x178/0x46c > Backtrace: > [<1035c608>] cdrom_newpc_intr+0x178/0x46c > [<1034c494>] ide_intr+0x1b0/0x214 > [<1016d284>] handle_IRQ_event+0x70/0x150 > [<1016d4b0>] __do_IRQ+0x14c/0x1cc > [<102f7864>] superio_interrupt+0x88/0xbc > [<1016d284>] handle_IRQ_event+0x70/0x150 > [<1016d4b0>] __do_IRQ+0x14c/0x1cc > [<10112efc>] do_cpu_irq_mask+0x9c/0xd0 > [<10116068>] intr_return+0x0/0x4 > > Looks very similar. But the crash reported in this ticket is for -rc4, which means the > issue was still there after this fix or it's another one. > Adding some more Cc's. yep, I'm already looking into it. -- Regards/Gruss, Boris.