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    SubjectRe: 2.6.29-rc2: thinkpad dock -- cdrom vs. s2ram
    Date
    On Monday 19 January 2009, Pavel Machek wrote:
    > On Mon 2009-01-19 21:50:58, Rafael J. Wysocki wrote:
    > > On Monday 19 January 2009, Pavel Machek wrote:
    > > > Hi!
    > > >
    > > > In 2.6.29 (and probably earlier) kernels, booting in docking station
    > > > results in undocked s2ram failing.
    > > >
    > > > Problem seems to be that hda (cdrom in dock) is not deregistered
    > > > during undock, and that hda driver loops spitting error messages at
    > > > 'too-fast-to-read' rate when suspend with missing hda is attempted.
    > >
    > > What driver do you mean exactly? Old-IDE I would guess.
    > >
    > > Does this also happen with a PATA/libata driver?
    >
    > I guess I'm confused. I tried:
    >
    > --- config.ok 2009-01-19 11:40:42.000000000 +0100
    > +++ ../b-linux/.config 2009-01-19 22:45:03.000000000 +0100
    > @@ -1022,7 +1022,7 @@
    > # CONFIG_SATA_SIL24 is not set
    > CONFIG_ATA_SFF=y
    > CONFIG_SATA_SVW=y
    > -CONFIG_ATA_PIIX=y
    > +# CONFIG_ATA_PIIX is not set
    > # CONFIG_SATA_MV is not set
    > # CONFIG_SATA_NV is not set
    > # CONFIG_PDC_ADMA is not set
    > @@ -1058,8 +1058,8 @@
    > # CONFIG_PATA_JMICRON is not set
    > # CONFIG_PATA_TRIFLEX is not set
    > # CONFIG_PATA_MARVELL is not set
    > -# CONFIG_PATA_MPIIX is not set
    > -# CONFIG_PATA_OLDPIIX is not set
    > +CONFIG_PATA_MPIIX=y
    > +CONFIG_PATA_OLDPIIX=y
    > # CONFIG_PATA_NETCELL is not set
    > # CONFIG_PATA_NINJA32 is not set
    > # CONFIG_PATA_NS87410 is not set
    >
    > ...but cdrom is still detected as hda.

    Er, CONFIG_ATA_PIIX is a SATA driver. I think you need to disable
    CONFIG_BLK_DEV_PIIX and perhaps CONFIG_IDE_GENERIC too.

    Rafael


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