Date: Sat, 16 Apr 2005 12:10:50 +0200 From: Wilko Bulte <wb@freebie.xs4all.nl> To: Pawel Jakub Dawidek <pjd@FreeBSD.ORG> Cc: John Baldwin <jhb@FreeBSD.ORG> Subject: Re: cvs commit: src/sys/vm vm_pageq.c Message-ID: <20050416101050.GB25906@freebie.xs4all.nl> In-Reply-To: <20050415225249.GL837@darkness.comp.waw.pl> References: <200504152145.j3FLj2Oi004736@repoman.freebsd.org> <20050415225249.GL837@darkness.comp.waw.pl>
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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@FreeBSD.org
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