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Subject: Re: [OOPS] 2.5.11 software raid,reiserfs & scsi
From: Tommy Faasen <tommy@vuurwerk.nl>
To: Roman Zippel <zippel@linux-m68k.org>
Cc: Linux kernel Mailinglist <linux-kernel@vger.kernel.org>, mingo@redhat.com
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Date: 30 Apr 2002 22:56:07 +0200
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On Tue, 2002-04-30 at 20:58, Roman Zippel wrote:
> Hi,
> 
> On 29 Apr 2002, Tommy Faasen wrote:
> 
> > I got an oops on 2.5.11 with an software raid 0 setup on 3 scsi disks,
> > it worked ok on 2.5.8. I get this when booting up and then my /dev/md0
> > isn't found.. If you need more details/help let me know!
> 
> The patch below fixes it for me.
> rdev doesn't point to a valid raid partition.
> 
Thanks, that did it for me!
> bye, Roman
> 
> Index: drivers/md/md.c
> ===================================================================
> RCS file: /usr/src/cvsroot/linux-2.5/drivers/md/md.c,v
> retrieving revision 1.1.1.8
> diff -u -p -r1.1.1.8 md.c
> --- drivers/md/md.c	29 Apr 2002 17:35:50 -0000	1.1.1.8
> +++ drivers/md/md.c	30 Apr 2002 17:52:04 -0000
> @@ -1577,6 +1577,7 @@ static int device_size_calculation(mddev
>  	if (!md_size[mdidx(mddev)])
>  		md_size[mdidx(mddev)] = sb->size * data_disks;
>  
> +	rdev = list_entry(mddev->disks.next, mdk_rdev_t, same_set);
>  	readahead = (blk_get_readahead(rdev->bdev) * 512) / PAGE_SIZE;
>  	if (!sb->level || (sb->level == 4) || (sb->level == 5)) {
>  		readahead = (mddev->sb->chunk_size>>PAGE_SHIFT) * 4 * data_disks;
> 
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