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    SubjectRe: IDE CD problems in 2.6.13rc6
    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
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