cvs commit: src/sys/vm vm_pageq.c

Bernd Walter ticso at cicely12.cicely.de
Sat Apr 16 04:01:49 PDT 2005


On Fri, Apr 15, 2005 at 09:45:02PM +0000, John Baldwin wrote:
> jhb         2005-04-15 21:45:02 UTC
> 
>   FreeBSD src repository
> 
>   Modified files:
>     sys/vm               vm_pageq.c 
>   Log:
>   Add a vm.blacklist tunable which can hold a space or comma seperated list
>   of physical addresses.  The pages containing these physical addresses will
>   not be added to the free list and thus will effectively be ignored by the
>   VM system.  This is mostly useful for the case when one knows of specific
>   physical addresses that have bit errors (such as from a memtest run) so
>   that one can blacklist the bad pages while waiting for the new sticks of
>   RAM to arrive.  The physical addresses of any ignored pages are listed in
>   the message buffer as well.

Sounds like this could be used if physical memory in non-continuous.

-- 
B.Walter                   BWCT                http://www.bwct.de
bernd at bwct.de                                  info at bwct.de



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