cvs commit: src/sys/vm vm_pageq.c

[Pawel Jakub Dawidek]

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...

-- 
Pawel Jakub Dawidek                       http://www.wheel.pl
pjd at FreeBSD.org                           http://www.FreeBSD.org
FreeBSD committer                         Am I Evil? Yes, I Am!
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