Date: Tue, 23 Oct 2007 00:18:50 -0700 (PDT)
Message-Id: <20071023.001850.130236174.davem@davemloft.net>
To: jens.axboe@oracle.com
Cc: fujita.tomonori@lab.ntt.co.jp, linux-kernel@vger.kernel.org
Subject: Re: IDE crash...
From: David Miller <davem@davemloft.net>
In-Reply-To: <20071023070932.GB25962@kernel.dk>
References: <20071022.235010.59469063.davem@davemloft.net>
	<20071023070252.GA25962@kernel.dk>
	<20071023070932.GB25962@kernel.dk>
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From: Jens Axboe <jens.axboe@oracle.com>
Date: Tue, 23 Oct 2007 09:09:33 +0200

> Eh this wont work, it's the wrong entry... Here's a temporary
> work-around.
> 
> diff --git a/drivers/ide/ide-io.c b/drivers/ide/ide-io.c
> index c89f0d3..108202b 100644
> --- a/drivers/ide/ide-io.c
> +++ b/drivers/ide/ide-io.c
> @@ -822,6 +822,7 @@ void ide_map_sg(ide_drive_t *drive, struct request *rq)
>  		return;
>  
>  	if (rq->cmd_type != REQ_TYPE_ATA_TASKFILE) {
> +		sg_init_table(hwif->sg_table, hwif->sg_max_nents);
>  		hwif->sg_nents = blk_rq_map_sg(drive->queue, rq, sg);
>  	} else {
>  		sg_init_one(sg, rq->buffer, rq->nr_sectors * SECTOR_SIZE);

That's the exact patch I'm about to boot test :-)
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