On Tue, 11 Apr 2006, Bob Picco wrote:
luck wrote: [Tue Apr 11 2006, 06:20:29PM EDT]
On Tue, Apr 11, 2006 at 11:39:46AM +0100, Mel Gorman wrote:
The patches have only been *compile tested* for ia64 with a flatmem
configuration. At attempt was made to boot test on an ancient RS/6000
but the vanilla kernel does not boot so I have to investigate there.
The good news: Compilation is clean on the ia64 config variants that
I usually build (all 10 of them).
The bad (or at least consistent) news: It doesn't boot on an Intel
Tiger either (oops at kmem_cache_alloc+0x41).
-Tony
I had a reply queued to report the same failure with
DISCONTIG+NUMA+VIRTUAL_MEM_MAP. This was 2 CPU HP rx2600. I'll take a closer
look at the code tomorrow.
hmm, ok, so discontig.c is in use which narrows things down. When
build_node_maps() is called, I assumed that the start and end pfn passed
in was for a valid page range. Was this a valid assumption? When I re-read
the comment, it implies that memory holes could be within this range which
would cause boot failures. If that is the case, the correct thing to do
was to call add_active_range() in count_node_pages() instead of
build_node_maps().
--
Mel Gorman
Part-time Phd Student Linux Technology Center
University of Limerick IBM Dublin Software Lab
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