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    SubjectRe: IDE probe failure in 2.6.25-mm1
    Date
    On Thursday 01 May 2008 01:00:44 am Bartlomiej Zolnierkiewicz wrote:
    > On Wednesday 30 April 2008, Andrew Morton wrote:
    > > On Wed, 30 Apr 2008 23:43:14 +0530
    > > Balaji Rao <balajirrao@gmail.com> wrote:
    > >
    > > > Hi Andrew,
    > > >
    > > > IDE probe fails in 2.6.25-mm1 on qemu.
    > > >
    > > > [ 0.664164] Uniform Multi-Platform E-IDE driver
    > > > [ 1.571508] ide0: DISABLED, NO IRQ
    > > > [ 1.572380] ide0: failed to initialize IDE interface
    > > >
    > > > This is the output with linux-2.6.git
    > > >
    > > > [ 1.567368] ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
    > > > [ 1.571430] hda: max request size: 512KiB
    > > > [ 1.574302] hda: 10485760 sectors (5368 MB) w/256KiB Cache, CHS=10402/255/63
    > > > [ 1.583896] hda: cache flushes supported
    > > > [ 1.585053] hda: hda1
    > > >
    > > > This is apparently due to the invasive changes in hwif_t's io_ports member.
    > > >
    > >
    > > OK, thanks.
    > >
    > > I _think_ Bart idenfitied a patch which caused this (or something like it)
    > > and dropped it?
    >
    > Yep.
    >
    > Two patches were dropped from IDE tree:
    >
    > ide-fix-hwif-s-initialization.patch
    > ide-make-ide_hwifs-static.patch
    >
    > there is also a hot-fix patch available:
    >
    > http://article.gmane.org/gmane.linux.ide/30860
    >
    > + for qemu switching to using piix host driver (qemu emulates PIIX3) should
    > also workaround the issue since it seems to happen only with ide_generic.

    Hi Bart,

    Yea, it now works in qemu after enabling the PIIX drivers.

    Thank you.

    --
    Warm Regards,

    Balaji Rao
    Dept. of Mechanical Engineering
    NITK


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