From mboxrd@z Thu Jan 1 00:00:00 1970 From: Robert Hancock Subject: Re: Kernel bug crashing in HDIO_DRIVE_TASKFILE Date: Sun, 01 Mar 2009 20:38:05 -0600 Message-ID: <49AB468D.6030506@gmail.com> References: <20090302002434.62707.qmail@web4109.mail.ogk.yahoo.co.jp> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-2022-JP Content-Transfer-Encoding: 7bit Return-path: Received: from ey-out-2122.google.com ([74.125.78.25]:62349 "EHLO ey-out-2122.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757351AbZCBCiN (ORCPT ); Sun, 1 Mar 2009 21:38:13 -0500 Received: by ey-out-2122.google.com with SMTP id 25so483076eya.37 for ; Sun, 01 Mar 2009 18:38:10 -0800 (PST) In-Reply-To: <20090302002434.62707.qmail@web4109.mail.ogk.yahoo.co.jp> Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: n0diamond@yahoo.co.jp Cc: linux-ide@vger.kernel.org, Mark Lord , Bartlomiej Zolnierkiewicz , Chuck Ebbert , Jens Axboe Norman Diamond wrote: > I will try building a kernel without legacy IDE drivers, > but meanwhile here's the latest bug. > > Knoppix 6.0.1 is built on kernel 2.6.28.4. Legacy IDE > drivers still claim /dev/hda and /dev/hdc (the Knoppix CD > being on /dev/hdc). > > In order to view part of a dump if it occurs, I typed the > following boot command: > knoppix 3 lang=en keyboard=jp106 > > When I try to do a TASKFILE WRITE_DMA (LBA28), the process > hangs. No dump. Ctrl+C and Ctrl+Z were ignored. > Ctrl+Alt+F2 switched to a second VT (by the way this no > longer works if Knoppix 6.0.1 is booted to graphical > mode). The second VT responded at first. Then tried to > do a dd if=/dev/hda bs=512 count=5 | od, and the second VT > hanged too. > > In the third VT, dmesg showed this error message: > hda-intel: Invalid position buffer, using LPIB read method > instead. > > Google found several threads where people are blaming this > error message on audio drivers or wireless LAN drivers. > Some people are saying it was fixed somewhere earlier than > 2.6.28.4. 2.6.28.4 tells me it's not fixed, and the > timing sure doesn't look like audio or wireless LAN. I'm guessing that's a symptom and not a cause, if the IDE driver is causing some kind of partial lockup then that could be messing with the audio driver.. > > I'll try building a kernel without legacy IDE drivers, but > I wonder which kernel version to try. Normally latest is best..