Module Name: src
Committed By: bouyer
Date: Sun Nov 22 21:41:03 UTC 2009
Modified Files:
src/sys/arch/amd64/include: vmparam.h
src/sys/arch/x86/x86: x86_machdep.c
Log Message:
For amd64, introduce a third free list distinct from the default free list
for memory between 16M and 4G. On large memory machine, this avoids
the 32bit-accessible memory being eaten by various kernel early allocation,
causing 32bit bus_dma(9) memory allocation to fail at boot time.
Tested on a system with 48GB RAM; based on netbsd-5 patch proposed on
port-amd64 3 days ago.
i wonder if we should do this on i386 PAE as well?
.mrg.
