linux-kernel - Re: IDE crash...

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Date:	Tue, 23 Oct 2007 00:18:50 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	jens.axboe@...cle.com
Cc:	fujita.tomonori@....ntt.co.jp, linux-kernel@...r.kernel.org
Subject: Re: IDE crash...

From: Jens Axboe <jens.axboe@...cle.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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