Keith Owens wrote:
>
> FYI, IA64 has different page sizes in different regions of the kernel.
> The kernel code is a single page of 256M. The vmalloc region has a
> compile time selectable page size, default is 16K. The getpagesize
> syscall returns the compile time selected page size. You can have a
> file system created by a kernel with one page size being read by a
> kernel with a different page size.
Kernel regions are not in question, so it shouldn't matter
if its pages are of different size than that used by the pagecache.
Also, re: booting kernels of different "user" pagesizes:
we currently have code that will refuse to mount a file-system
that is created with a non-page-sized blocks ...
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Rajagopal Ananthanarayanan ("ananth")
Member Technical Staff, SGI.
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