Date: Fri, 27 Feb 2009 11:21:00 -0500 From: Michael Butler <imb@protected-networks.net> To: John Baldwin <jhb@freebsd.org> Cc: freebsd-stable@freebsd.org Subject: Re: 7.1-STABLE does not boot after recent superpage support MFC Message-ID: <49A812EC.8060408@protected-networks.net> In-Reply-To: <200902271026.15796.jhb@freebsd.org> References: <20090227130830.GI51952@rambler-co.ru> <200902271026.15796.jhb@freebsd.org>
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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 John Baldwin wrote: > On Friday 27 February 2009 8:08:30 am Igor Sysoev wrote: > >> And the message is cycled. The kernel does not boot despite >> vm.pmap.pg_ps_enabled value. > > This should now be fixed, apologies for the breakage. :( What are the benefits and/or impacts of enabling this? Is there anything to be gained with respect to cache and/or TLB utilization in allowing entry promotion through a reduced "footprint" or similar? How much does this depend on architecture, say, e.g. Core-2 Duo vs. Pentium? I note that it is not enabled by default in -current either - just curious, Michael -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (FreeBSD) iEYEARECAAYFAkmoEuwACgkQQv9rrgRC1JKTcQCfQwKq1MuiwSJcNEaVWsJJZb+D 3oQAoJdM7WxgBi3YOUuV45D72sGcm/YX =0Osn -----END PGP SIGNATURE-----
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