CVS commit: src/sys/arch

[Manuel Bouyer <bouyer%netbsd.org@localhost>]

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.


To generate a diff of this commit:
cvs rdiff -u -r1.21 -r1.22 src/sys/arch/amd64/include/vmparam.h
cvs rdiff -u -r1.36 -r1.37 src/sys/arch/x86/x86/x86_machdep.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.