From: Robert Hancock <hancockrwd@gmail.com>
To: Peter Teoh <htmldeveloper@gmail.com>
Cc: LKML <linux-kernel@vger.kernel.org>
Subject: Re: /dev/sdb not detected anymore?
Date: Sat, 03 Oct 2009 19:02:09 -0600 [thread overview]
Message-ID: <4AC7F411.1090305@gmail.com> (raw)
In-Reply-To: <804dabb00910020707r9820d8bpe371baf1efb67c1@mail.gmail.com>
On 10/02/2009 08:07 AM, Peter Teoh wrote:
> I just built my 2.6.32-rc2 (from linus-git) yesterday, and repeated
> today again, starting from "make mrproper", and consistently both
> version cannot detect my /dev/sdb, which is the second SATA harddisk.
> The first SATA is detected as follows in dmesg:
>
> 742 [ 4.595949] scsi 2:0:0:0: Direct-Access ATA
> ST3500630AS 3.AA PQ: 0 ANSI: 5
> 743 [ 4.596116] sd 2:0:0:0: [sda] 976773168 512-byte logical
> blocks: (500 GB/465 GiB)
> 744 [ 4.596213] sd 2:0:0:0: [sda] Write Protect is off
> 745 [ 4.596216] sd 2:0:0:0: [sda] Mode Sense: 00 3a 00 00
> 746 [ 4.596258] sd 2:0:0:0: [sda] Write cache: enabled, read
> cache: enabled, doesn't support DPO or FUA
> 747 [ 4.596467] sda: sda1 sda2 sda3 sda4< sda5 sda6 sda7 sda8 sda9>
> 748 [ 4.674607] sd 2:0:0:0: [sda] Attached SCSI disk
>
> And from sg_inq:
>
> standard INQUIRY:
> PQual=0 Device_type=0 RMB=0 version=0x05 [SPC-3]
> [AERC=0] [TrmTsk=0] NormACA=0 HiSUP=0 Resp_data_format=2
> SCCS=0 ACC=0 TPGS=0 3PC=0 Protect=0 BQue=0
> EncServ=0 MultiP=0 [MChngr=0] [ACKREQQ=0] Addr16=0
> [RelAdr=0] WBus16=0 Sync=0 Linked=0 [TranDis=0] CmdQue=0
> [SPI: Clocking=0x0 QAS=0 IUS=0]
> length=96 (0x60) Peripheral device type: disk
> Vendor identification: ATA
> Product identification: ST3500630AS
> Product revision level: 3.AA
> Unit serial number: 9QG14T5Z
>
> But the second SATA (identical in type/model) is not detectable.
> Upon rebooting to my previous 2.6.31 kernel version, it became
> detected and usable - absolutely nothing else is touch. So what is
> it in the latest kernel which is giving the problem?
We need more details, can you post the full boot log including the
actual libata messages from the working and non-working kernels?
next prev parent reply other threads:[~2009-10-04 1:03 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-10-02 14:07 /dev/sdb not detected anymore? Peter Teoh
2009-10-04 1:02 ` Robert Hancock [this message]
2009-10-04 2:08 ` Peter Teoh
2009-10-05 14:49 ` Peter Teoh
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