On Thu, Mar 23, 2006 at 10:13:47PM +0000, Jason Lunz wrote:
> In 2.6.16, the kernel allows user-selectable address space splits. I
> have 1.5G of memory, so choosing 2G/2G lets me turn off highmem. I also
> have the new 2.6.16 skas3 v8.2 patch applied.
>
> With this configuration, all umls die immediately, whether I try skas0,
> skas3 or TT.
>
> Is this something uml can support?
It can.
You can make some progress by disabling CONFIG_MODE_TT - that will
cause UML to load at a normal address rather than the 0xa0000000 that
CONFIG_MODE_TT will force.
That should get you to the point of trying to run init.
Since you have skas3, my guess is that UML will be fine at that point.
On a non-skas3 host, it will run in skas0 mode, and will expect to be
able to map a couple of pages at the top of the process address space
(hardcoded to 0xbfffe000 and 0xbffff000). These offsets would need to
be calculated based on the host's split in order for skas0 to work.
Jeff
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