Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Thu, 18 Apr 2002 08:19:34 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Thu, 18 Apr 2002 08:19:33 -0400 Received: from mail.gmx.de ([213.165.64.20]:11374 "HELO mail.gmx.net") by vger.kernel.org with SMTP id ; Thu, 18 Apr 2002 08:19:32 -0400 Date: Thu, 18 Apr 2002 14:17:46 +0200 From: Sebastian Droege To: Martin Dalecki Cc: axboe@suse.de, linux-kernel@vger.kernel.org Subject: Re: [PATCH] IDE TCQ #4 Message-Id: <20020418141746.2df4a948.sebastian.droege@gmx.de> In-Reply-To: <3CBD519F.7080207@evision-ventures.com> X-Mailer: Sylpheed version 0.7.4 (GTK+ 1.2.10; i386-debian-linux-gnu) Mime-Version: 1.0 Content-Type: multipart/signed; protocol="application/pgp-signature"; boundary="=..)So9GM?b(.J8t" Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org --=..)So9GM?b(.J8t Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit On Wed, 17 Apr 2002 12:42:39 +0200 Martin Dalecki wrote: > > 2. > > when I cat /proc/ide/ide1/hdc/identify I get 2 unexpected interrupts > > hdc and hdd are both cdrom drives (accessed via scsi-emulation if relevant) > > but the problem shows up only with hdc > > Duh oh... This is actually a good hint. I will look after > this. > > > > > and maybe a third problem ;) > > in /proc/ide/ide0/hda/tcq there is written: > > DMA status: not running > > This is harmless it just shows that there was no DMA transfer in flight the > time you have cat-ed this file. > > > but DMA is explicitly enabled by hdparm and shows up in /proc/ide/ide0/hda/settings > > > > I'll do some more testings later the day Hi again, after some playing with hdparm I found something bad :( ide_tcq_intr_timeout: timeout waiting for interrupt ide_tcq_intr_timeout: hwgroup not busy hda: invalidating pending queue ide_tcq_invalidate_queue: done and then... nothing works anymore -> total lockup of the IDE system This happens only (?) when I put hdparm -qa1 -qA1 -qc1 -qd1 -qm16 -qu1 -qW1 /dev/hda (the same with hdb) in my bootscripts When I start hdparm later everything works fine first, but after a while (and when I'm under X) the IDE system is crashed I have enabled following options: CONFIG_BLK_DEV_IDE_TCQ=y CONFIG_BLK_DEV_IDE_TCQ_FULL=y CONFIG_BLK_DEV_IDE_TCQ_DEFAULT=y CONFIG_BLK_DEV_IDE_TCQ_DEPTH=32 I hope this helps somehow but I don't know what further informations I can provide BTW: I think we should create devfs entries for ide-scsi devices (because hdparm doesn't take scdX ;) ) Bye --=..)So9GM?b(.J8t Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.0.6 (GNU/Linux) iD8DBQE8vrlve9FFpVVDScsRAsINAJ0T8YBGshJpRQocfaP3ObcCpyvq8wCdHo6R C+dYhCqo/DobwGGsNMCBkh4= =Kwcw -----END PGP SIGNATURE----- --=..)So9GM?b(.J8t-- - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/