Meelis Roos wrote:
Very strange trace indeed. I'll take a look at this. At least since it
came from Qemu I should be able to "build" a suitable PC to match yours.
Original Intel PIIX devices are handled by "OLDPIIX" (0x8086, 0x1230).
The later ones by ata_piix. The only oddity I see is that you have no
PCI bus mastering address base assigned (bmdma)
I also tried VMWare 5.5 that emulated PIIX4. It works if I only put
ata_piix driver in. With the same kernel that Qemu gets the error,
VMWare gets another oops during generic ide initialisation. I relooked
and found that I have both generic PCI ide and generic ISA ide drivers
compiled in, so I disabled them and it works using ata_piix (with PATA
and ATAPI enabled). Even ATAPI cdrom worked as the root partition.
But, the different oops that I got in vmware with generic ide:
http://www.cs.ut.ee/~mroos/atacrash.png
I was under the impression that libata pata and ide drivers are mutually
exclusive. You're not supposed to be using both at the same time
unless they're for completely different controllers.
Maybe this should be in the config to auto unselect the other equivilant
driver (+generic) when either the libata or ide one is user selected, or
at least mentioned in the help for future testers.
Since libata is loaded after regular ide, having generic ide compiled in
is a problem. Generic drivers should be loaded after all specific
compiled in drivers and generic libata should override generic ide.
This seems to be very complicated if both interfaces are to be around at
the same time for a while. Maybe it should just be mentioned in the
Help for libata drivers that it's best to just disable all regular ide
drivers when using libata pata ones.
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