From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751266AbWDNRIh (ORCPT ); Fri, 14 Apr 2006 13:08:37 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751290AbWDNRIh (ORCPT ); Fri, 14 Apr 2006 13:08:37 -0400 Received: from threatwall.zlynx.org ([199.45.143.218]:42133 "EHLO zlynx.org") by vger.kernel.org with ESMTP id S1751266AbWDNRIh (ORCPT ); Fri, 14 Apr 2006 13:08:37 -0400 Subject: Re: Where to call L2 cache enabling code from? From: Zan Lynx To: Dave Jones Cc: Steve Snyder , Alan Cox , Linux Kernel Mailing List In-Reply-To: <20060414170052.GA22463@redhat.com> References: <200604141105.43216.swsnyder@insightbb.com> <1145029574.17531.26.camel@localhost.localdomain> <200604141249.49366.swsnyder@insightbb.com> <20060414170052.GA22463@redhat.com> Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="=-jPjSPtJLA7FHUOiHEzRC" Date: Fri, 14 Apr 2006 11:08:26 -0600 Message-Id: <1145034507.9218.4.camel@localhost> Mime-Version: 1.0 X-Mailer: Evolution 2.6.0 X-Envelope-From: zlynx@acm.org Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org --=-jPjSPtJLA7FHUOiHEzRC Content-Type: text/plain Content-Transfer-Encoding: quoted-printable On Fri, 2006-04-14 at 12:00 -0500, Dave Jones wrote: [snip] > arch/i386/kernel/cpu/intel.c has a bunch of workarounds for various > issues. Is there a valid use-case for ever booting with cache disabled > though? If so, this should probably be a boot-time option to enable it. Yes, disabling the cache is useful to debug bad hardware. If the CPU cache is bad, then disabling it might make things work again and you know what needs to be replaced. --=20 Zan Lynx --=-jPjSPtJLA7FHUOiHEzRC Content-Type: application/pgp-signature; name=signature.asc Content-Description: This is a digitally signed message part -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.2.2 (GNU/Linux) iD8DBQBEP9cJG8fHaOLTWwgRAmwGAJ4hYvUo7alf+eFGbSXfJXxgIx1G1wCgnV4H rvVgI5pbwAf2KogbeUMR140= =Y95u -----END PGP SIGNATURE----- --=-jPjSPtJLA7FHUOiHEzRC--