FW: RE: [parisc-linux] 2.4.20-rc1-pa7 boot problem on b180

Grant Grundler grundler@dsl2.external.hp.com
Mon, 02 Dec 2002 21:09:42 -0700

jsoe0708@tiscali.be wrote:
> >the less by curiosity I apply the Ryan patch: <http://lists.parisc-linux=
> .org/pipermail/parisc-linux/2002-November/018414.html>
> >and it also solved the problem of the b180 boot??

yes - thanks for finding this!

arch/parisc/kernel/pci-dma.c has the same bug as what ccio driver
has/had regarding scatter/gather lists (pci_map_sg() interfaces).
Replace all references to "sg->address" with "sg_virt_addr(sg)".
Can you send me a patch off list for that?

If not, I'll probably do it since I'd like to get my B180 working on 2.4.20.
It will just take longer.

> Don't know if could help but I also notice the following difference at
> boot time:
> With highmem_io=3D1 on a b2000
> with highmem_io=3D0 on a b180

It's hard to compare different SCSI implementations.
IIRC, B2000 uses 53c875 and B180 uses LASI for SE narrow SCSI.
Check to see which driver claims the respective SCSI controllers.