Re: Off-by-one in both LIBATA and IDE drivers

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Norman Diamond wrote:
> LIBATA with the patch to ata.h now handles all sectors on
> hard drives that it recognizes.
> 
> An example of a hard drive that it recognizes is one that
> is attached to an Intel ICH7M chipset when hda=noprobe
> hdc=noprobe have been specified in the boot command.
> 
> An example of a hard drive that it doesn't recognize is
> one that is attached to an Intel PIIX4 chipset when
> hda=noprobe hdc=noprobe have been specified in the boot
> command.
> 
> In either case, the boot parameters persuade the old IDE
> drivers not to grab the controllers.
> 
> With ICH7M, LIBATA takes over and runs both the hard drive
> and DVD at full speed.
> 
> With PIIX4, LIBATA initializes.  End of story.  Slax can't
> find its own CD.  If I only use hda=noprobe then the old
> IDE controller assigns hdc to the CD and Slax finds it,
> but the hard drive is still undetected.  Behaviour is the
> same under VMware as in a genuine old PC.
> 
> LIBATA's PIIX drivers are built in along with everything
> else.  They just seem not to get executed.
> 
> What am I missing?

I assume that ATA_PIIX is set in the configuration.. The lspci -vn and
dmesg output from when it fails to detect would be useful.

> 
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