[Dri-devel] PPC Lockup (ati-pcigart-branch)

[Roman Zippel]

Hi,

On Mon, 22 Jan 2001, Jeff Hartmann wrote:

> > Ummm...of course it is virtually contiguous.  How could it be
> > different?  You request a size, and it returns a base virtual address.
> > If there were holes in it, how would you know?
>
> Look at vread in vmalloc.c, I think it would handle holes in a
> vmalloc'ed area (From a brief reading of the code.)  I've seen postings
> about this on linux-kernel.  I don't see a vwrite implementation, but I
> would assume you would have to do something similar for writes.

Between two vmalloced areas is of course a hole to catch overflow errors.

bye, Roman


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