From mboxrd@z Thu Jan  1 00:00:00 1970
From: Tejun Heo <htejun@gmail.com>
Subject: Re: Boot failure with block/for-next
Date: Thu, 23 Dec 2010 16:52:39 +0100
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To: James Bottomley <James.Bottomley@suse.de>
Cc: Jens Axboe <axboe@kernel.dk>, linux-scsi <linux-scsi@vger.kernel.org>, linux-kernel <linux-kernel@vger.kernel.org>
List-Id: linux-scsi@vger.kernel.org

Hey,

On Thu, Dec 23, 2010 at 09:27:21AM -0600, James Bottomley wrote:
> > Subject: sd: don't clear media presence unless it's removable
> 
> No, still the same failure.  Here's an excised log of an unsuccessful
> and successful disk probe:

Hmmm... That's unfortunate.

> /bin/sh: can't access tty; job control turned off
> (initramfs) dmesg|grep sda
> sd 2:0:1:0: [sda] 71132960 512-byte logical blocks: (36.4 GB/33.9 GiB)
> sd 2:0:1:0: [sda] Write Protect is off
> sd 2:0:1:0: [sda] Mode Sense: d3 00 10 08
> sd 2:0:1:0: [sda] Write cache: disabled, read cache: enabled, supports DPO and FUA
> device: 'sda': device_add
> PM: Adding info for No Bus:sda
>  sda: unable to read partition table
> sd 2:0:1:0: [sda] Attached SCSI disk
> (initramfs) dmesg|grep sdb
> sd 2:0:2:0: [sdb] 17942584 512-byte logical blocks: (9.18 GB/8.55 GiB)
> sd 2:0:2:0: [sdb] Write Protect is off
> sd 2:0:2:0: [sdb] Mode Sense: e3 00 10 08
> sd 2:0:2:0: [sdb] Write cache: disabled, read cache: enabled, supports DPO and FUA
> device: 'sdb': device_add
> PM: Adding info for No Bus:sdb
>  sdb: sdb1 sdb2
> device: 'sdb1': device_add
> PM: Adding info for No Bus:sdb1
> device: 'sdb2': device_add
> PM: Adding info for No Bus:sdb2
> sd 2:0:2:0: [sdb] Attached SCSI disk

Can you please apply the debug patch I posted in the other message and
post the boot log?  Let's see how the partition read is failing.

Thanks.

-- 
tejun