cvs commit: src/sys/vm vm_pageq.c

[Wilko Bulte]

On Sat, Apr 16, 2005 at 12:52:49AM +0200, Pawel Jakub Dawidek wrote..
> 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.
> 
> Nice. Would be good to have it documented somewhere, not sure where...

Yeah.. Whats next, background memory scrubber that takes a close
look at the ECC hardware ? ;-)

-- 
Wilko Bulte				wilko at FreeBSD.org