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Message-ID: <58cb370e05081404354fe6a097@mail.gmail.com>
Date: Sun, 14 Aug 2005 13:35:11 +0200
From: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
To: Dave Jones <davej@redhat.com>, linux-kernel@vger.kernel.org
Subject: Re: IDE CD problems in 2.6.13rc6
In-Reply-To: <20050813232957.GE3172@redhat.com>
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Hi Dave,

On 8/14/05, Dave Jones <davej@redhat.com> wrote:
> I've noticed this week whilst trying to encode a bunch
> of audio CDs to oggs that my boxes running the latest
> kernels are having serious issues, whereas 2.6.12 seems
> to cope just fine.
> 
> The symptoms vary. On some of my machines just inserting
> an audio CD makes the box instantly lock up.
> If I boot with the same CD in the drive, sound-juicer
> can read it just fine. When I get to the next CD, I have
> to reboot again, or it locks up.
> 
> On another box, it gets stuck in a loop where it
> just prints out..
> 
> hdc: irq timeout: status=0xd0 { Busy }    (This line sometimes has status=0xc0)
> ide: failed opcode was: unknown
> 
> The net result is that I've not got a single box that
> will read audio CDs without doing something bad, and I've
> tried it on several quite diverse systems.
> 
> 
> I'll try and narrow down over the next few days when this
> started happening, but IDE / CD folks may have some better
> ideas about which changes were suspicious.

I checked 2.6.13-rc6 patch and I see no IDE / CD changes which
could be responsible for this regression.  You can try reverting ide-cd
changes and see if this helps.  IRQ routing changes?

Bartlomiej