Messages in this thread | | | Date | Thu, 03 Feb 2000 16:04:01 +0100 | From | Manfred Spraul <> | Subject | Re: how does kernel get the "current" task struct? |
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"H. Peter Anvin" wrote: > Wrong. It's %esp with a whole bunch of bits *MASKED*. This works > because the per-task area -- which includes the kernel stack -- is 8K > in size and aligned on an 8K boundary. >
Could you check the buddy allocator? I think that the zoned buddy allocator aligns memory allocations relative to the beginning of the zone, and not relative to the physical address.
I.e. if a zone starts at 0x00001000, then an 8K allocation will be unaligned. This could be a problem for CONFIG_DISCONTIG_MEM computers [normal i386 zones start at 0, 16MB, 4GB --> no alignment problems]
-- Manfred
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