Re: User mode address error problems on 7763

Dale Larson
2009-09-15T12:55:14Z

> I assumed SH7763 was an SH-X2 based core, but it turns out it is a
> first-generation SH-4A, in which case it does not implement the extended
> mode TLB. So the next available page size above 4k is 64k. I wasn't aware
> there was anyone still running first generation SH-4A, I'll have to dust
> some of mine off to see if I can reproduce your issues.

We're finally replacing our 7760 (yep, you heard right) based product
with the 7763.
While you're dusting your's off we'll just be putting polish on it. ;-)

> page size. That will bring up a menu where you can cycle through the
> available page sizes. I don't recommend 1MB for a system page size, as it
> tends to interact badly with some of the slab allocators. 64k will give
> you an idea of whether there are indeed any aliasing bugs lurking about.

I'll try that.

Thanks!