linux-kernel - Re: [2.6.30-rc2] CD-R: wodim intermittent failures: [sr0] Add. Sense: Logical block address out of range, sector 0

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Date:	Tue, 12 May 2009 19:27:23 -0700
From:	Andy Isaacson <adi@...apodia.org>
To:	Robert Hancock <hancockrwd@...il.com>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	linux-kernel@...r.kernel.org, linux-ide@...r.kernel.org,
	linux-scsi <linux-scsi@...r.kernel.org>
Subject: Re: [2.6.30-rc2] CD-R: wodim intermittent failures: [sr0] Add. Sense: Logical block address out of range, sector 0

On Tue, May 12, 2009 at 07:08:54PM -0600, Robert Hancock wrote:
> On Tue, May 12, 2009 at 7:00 PM, Andy Isaacson <adi@...apodia.org> wrote:
> > Perhaps, I haven't tracked down exactly what the difference in behavior
> > between working 2.6.29 and broken 2.6.30-rc2 is. ?It seems like the disk
> > spins up more often (in response to hal background probes presumably)
> > with 30-rc2 than it did before, and running "udevadm monitor" I do see
> > the following repeated "change" events happening, even on an idle
> > system:
> >
> > KERNEL[1242175547.793029] change ? /devices/pci0000:00/0000:00:1f.2/host1/target1:0:0/1:0:0:0 (scsi)
> > KERNEL[1242175547.794669] change ? /devices/pci0000:00/0000:00:1f.2/host1/target1:0:0/1:0:0:0/block/sr0 (block)
[snip]
> Those events seem rather suspicious. Hmm:
> 
> [    2.770959] ata2.00: ATAPI: TSSTcorp DVD+/-RW TS-U633A, D200, max
> UDMA/100, ATAPI AN
> 
> Did libata report it was using ATAPI AN in 2.6.29?

Yes, AN is present in every log I have for that device (back to
2.6.28.1).

> You could try bisecting to see if you can find which patch started
> triggering those spurious events..

Heh, I was dreading a bisect where each step burned a coaster, but just
looking for events is easy.  I'll try that tomorrow.

-andy
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