Re: 2.4.20pre7, aic7xxx-6.2.8: Panic: HOST_MSG_LOOP with invalid SCB 0

["Justin T. Gibbs" <gibbs@scsiguy.com>]

> Justin,
> 
> I guess is the second or third report of problems with the new aic7xxx :(

This issue has already been resolved as a chipset issue requiring
I/O mapped register access to work around.  The "old" aic7xxx driver
avoids these issues by issuing a register read after every register
write.  This stops up your PCI bus with wasted cycles even if you have
a perfectly working chipset.

So, how would you like me to resolve this.  We can do the same thing
as Adaptec's windows drivers and just always use the slower, less
efficient I/O mapped method for accessing registers.  This will "fix"
the problems people have with broken VIA and Intel chipsets.  I can
make this a compile and run-time option, but should we default to
I/O mapped or memory mapped?

Don't you just love broken PC hardware?

--
Justin