Re: i2o - problems with controllers with additional memory (from fedora-list)

[Alan Cox <alan redhat com>]

On Tue, Sep 14, 2004 at 11:46:56PM -1000, Warren Togami wrote:
> Please talk directly with Markus Lidel and send him as much information 
> as possible.  It would help immensely if you could install FC3 onto an 
> IDE disk and allow him to ssh into the machine, so he can test candidate 
> fixes directly on your hardware.  He fixed 64bit I2O issues quickly by 
> logging into my dual Opteron + I2O box.

That one isn't a Markus problem, its one for Arjan. There is a limited amount
of ioremap space (how much varies) and for I2O you really do need to ioremap
all the controller memory. A 128Mb I2O card combined with a 128Mb video card
eats a lot of 32bit address space.