kernel BUG in __cache_alloc_node at linux-2.6.git/mm/slab.c:3177!
clameter at sgi.com
Thu Oct 19 07:26:50 EST 2006
On Thu, 19 Oct 2006, Paul Mackerras wrote:
> > Have memory available for slab boot strap on node 0? Or modify the boot
> > code in such a way that it runs on node 1 or any other node that has
> > memory available.
> OK, then I don't understand. There is about 1GB of memory on node 0,
> which is about half of the partition's memory, and it is even in a
> contiguous chunk, but it doesn't start at pfn 0:
And the memory is available? In some messages it showed that all of node 0
memory was allocated on bootup! We end up in fallback_alloc which means
that an allocation attempt failed to obtain memory. Could you figure out
what exactly we are trying to allocate? Add some printk's? Why do we
> So it's not that node 0 doesn't have any pages. Any other clues?
We are falling back. So something is going wrong. Either we request memory
from an overallocated node or the page allocator for some other reason is
not giving us the requested memory. If we figure out why then the fix is
probably very simple.
I have no way of investigating the issue except by conjecture and code
review since I have no ppc hardware.
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