Re: SATA/IDE Dual Mode w/Intel 945 Chipset or HOW TO LIQUIFY a flash IDE chip under 2.6.18

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Jeff Garzik wrote:

Jeff V. Merkey wrote:


I just finished pulling out a melted IDE flash drive out of a Shuttle motherboard with the intel 945 chipset which claims to support
SATA and IDE drives concurrently under Linux 2.6.18.

The chip worked for about 30 seconds before liquifying in the chassis. I note that the 945 chipset in the shuttle PC had some serious issues recognizing 2 x SATA devices and a IDE device concurrently. Are there known problems with the Linux drivers
with these newer chipsets.

One other disturbing issue was the IDE flash drive was configured (and recognized) as /dev/hda during bootup, but when it got to the root mountint, even with root=/dev/hda set, it still kept thinking the drive was at scsi (ATA) device (08,13)
and kept crashing with VFS cannot find root FS errors.


We have two sets of ATA drivers now, and Intel motherboards support bazillion annoying IDE modes, so you will need to provide more info than this.

Is the motherboard in combined mode?


Yes.  "Enhanced mode" is how it is listed in the BIOS.

native mode?  AHCI or RAID mode?

No RAID, just enhanced mode (SATA 3.0 + IDE)

What driver set did you pick?


Standard build = standard IDE + Intel PIIX + SATA + Intel ICP

is drivers/ide built in, modular, or disabled? is drivers/ata built in, modular, or disabled?

built in in all cases.


The cannot-find-root-FS errors are definitely caused by driver and/or initrd misconfiguration. The melted flash, I dunno, maybe you managed to get two drivers fighting over the same hardware.

No. Seems related to the chipset problems. If I say "root=/dev/hda2" I have better not be getting errors claiming device 08:13 could not mount as root. memory corruption?

The melted flash seems power related (like pin 20 was live for some reason on a standard IDE).

Jeff


    Jeff





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