Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753134AbWKHVkf (ORCPT ); Wed, 8 Nov 2006 16:40:35 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753523AbWKHVke (ORCPT ); Wed, 8 Nov 2006 16:40:34 -0500 Received: from sycorax.lbl.gov ([128.3.5.196]:43525 "EHLO sycorax.lbl.gov") by vger.kernel.org with ESMTP id S1753134AbWKHVkd (ORCPT ); Wed, 8 Nov 2006 16:40:33 -0500 From: Alex Romosan To: Jens Axboe Cc: linux-kernel@vger.kernel.org Subject: Re: 2.6.19-rc5: known regressions References: <20061108085235.GT4729@stusta.de> <20061108093442.GB19471@kernel.dk> <87ejsd3gcr.fsf@sycorax.lbl.gov> <20061108192924.GA4527@kernel.dk> <87ac313f1d.fsf@sycorax.lbl.gov> <20061108194532.GB4527@kernel.dk> Date: Wed, 08 Nov 2006 13:40:29 -0800 In-Reply-To: <20061108194532.GB4527@kernel.dk> (message from Jens Axboe on Wed, 8 Nov 2006 20:45:32 +0100) Message-ID: <8764dp39de.fsf@sycorax.lbl.gov> User-Agent: Gnus/5.110006 (No Gnus v0.6) Emacs/21.4 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 4182 Lines: 109 Jens Axboe writes: > If you could retest with something crazy like this, then that would > likely help: > > diff --git a/drivers/ide/ide-cd.c b/drivers/ide/ide-cd.c > index 7c47e62..010acfa 100644 > --- a/drivers/ide/ide-cd.c > +++ b/drivers/ide/ide-cd.c > @@ -630,6 +630,9 @@ static void cdrom_end_request (ide_drive > struct request *rq = HWGROUP(drive)->rq; > int nsectors = rq->hard_cur_sectors; > > + if (blk_pc_request(rq) && rq->cmd[0] == 0x12) > + printk("ide-cd: end INQ rq %p\n", rq); > + > if (blk_sense_request(rq) && uptodate) { > /* > * For REQ_TYPE_SENSE, "rq->buffer" points to the original > @@ -1671,6 +1674,9 @@ static ide_startstop_t cdrom_newpc_intr( > xfer_func_t *xferfunc; > unsigned long flags; > > + if (rq->cmd[0] == 0x12) > + printk("ide-cd: newpc %p\n", rq); > + > /* Check for errors. */ > dma_error = 0; > dma = info->dma; > @@ -1789,6 +1795,8 @@ static ide_startstop_t cdrom_newpc_intr( > return ide_started; > > end_request: > + if (rq->cmd[0] == 0x12) > + printk("ide-cd: newpc end INQ %p\n", rq); > if (!rq->data_len) > post_transform_command(rq); > > @@ -1959,7 +1967,13 @@ static ide_startstop_t cdrom_do_block_pc > { > struct cdrom_info *info = drive->driver_data; > > - rq->cmd_flags |= REQ_QUIET; > + if (rq->cmd[0] == 0x12) { > + printk("ide-cd: starting INQ %p\n", rq); > + if (rq_data_dir(rq) == WRITE) > + printk("ide-cd: INQ with write set seen\n"); > + } > + if (!rq->bio && rq->biotail) > + printk("ide-cd: no bio, but biotail\n"); > > info->dma = 0; i applied this patch on top of the old one. this is what i get now: kernel: ide-cd: starting INQ df5ad074 kernel: ide-cd: INQ with write set seen kernel: ide-cd: newpc df5ad074 kernel: hdc: write_intr: wrong transfer direction! kernel: ide-cd: end INQ rq df5ad074 kernel: cdrom_newpc: dev hdc: type=2, flags=104c9 kernel: kernel: sector 59534648, nr/cnr 0/0 kernel: bio 00000000, biotail dee57c80, buffer 00000000, data 00000000, len 56 kernel: cdb: 12 00 00 00 38 00 00 00 00 00 00 00 00 00 00 00 kernel: ide-cd: starting INQ df5ad074 kernel: ide-cd: newpc df5ad074 kernel: ide-cd: newpc df5ad074 kernel: ide-cd: newpc end INQ df5ad074 kernel: hdc: packet command error: status=0x51 { DriveReady SeekComplete Error } kernel: hdc: packet command error: error=0xb4 { AbortedCommand LastFailedSense=0x0b } kernel: ide: failed opcode was: unknown kernel: ATAPI device hdc: kernel: Error: Aborted command -- (Sense key=0x0b) kernel: (reserved error code) -- (asc=0x11, ascq=0x11) kernel: The failed "Read CD" packet command was: kernel: "be 00 00 00 51 93 00 00 0d f8 00 00 00 00 00 00 " kernel: hdc: packet command error: status=0x51 { DriveReady SeekComplete Error } kernel: hdc: packet command error: error=0x30 { LastFailedSense=0x03 } kernel: ide: failed opcode was: unknown kernel: ATAPI device hdc: kernel: Error: Medium error -- (Sense key=0x03) kernel: Unrecovered read error -- (asc=0x11, ascq=0x00) kernel: The failed "Read CD" packet command was: kernel: "be 00 00 00 51 a0 00 00 07 f8 00 00 00 00 00 00 " kernel: hdc: packet command error: status=0x51 { DriveReady SeekComplete Error } kernel: hdc: packet command error: error=0xb4 { AbortedCommand LastFailedSense=0x0b } kernel: ide: failed opcode was: unknown kernel: ATAPI device hdc: kernel: Error: Aborted command -- (Sense key=0x0b) kernel: (reserved error code) -- (asc=0x11, ascq=0x11) kernel: The failed "Read CD" packet command was: kernel: "be 00 00 00 51 9b 00 00 0d f8 00 00 00 00 00 00 " hdc is the cdrom drive and the errors started showing up when cdparanoia hung. --alex-- -- | I believe the moment is at hand when, by a paranoiac and active | | advance of the mind, it will be possible (simultaneously with | | automatism and other passive states) to systematize confusion | | and thus to help to discredit completely the world of reality. | - 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/