[PATCH] Fix boot problem in situations where the boot CPU is running on a memoryless node
clameter at sgi.com
Thu Jan 24 05:35:32 EST 2008
On Wed, 23 Jan 2008, Pekka J Enberg wrote:
> I still think Christoph's kmem_getpages() patch is correct (to fix
> cache_grow() oops) but I overlooked the fact that none the callers of
> ____cache_alloc_node() deal with bootstrapping (with the exception of
> __cache_alloc_node() that even has a comment about it).
My patch is useless. kmem_getpages called with nodeid == -1 falls back
correctly to the available node. The problem is that the node structures
for the page does not exist.
> But what I am really wondering about is, why wasn't the
> N_NORMAL_MEMORY revert enough? I assume this used to work before so what
> more do we need to revert for 2.6.24?
I think that is because SLUB relaxed the requirements on having regular
memory on the boot node. Now the expectation is that SLAB can do the same.
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