Messages in this thread | | | From | "Brown, Len" <> | Subject | RE: [BK PATCH] acpismp=force fix | Date | Thu, 26 Jun 2003 14:37:11 -0700 |
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I think there should be a boot-option to use ACPI for boot-time configuration tables, but to not load the driver for run-time event handling. This is useful for enabling HT on systems with broken ACPI run-time BIOS.
UnitedLinux uses "acpi=oldboot" for this. While 'old' will become ambiguous when today's "new" becomes tomorrow's "old";-), I do like "acpi={something}" rather than complicating matters with non "acpi=" syntax.
Re: "acpismp=force" I wouldn't miss it. Sounds unanimous.
Re: "noht" To disable HT on a uni-processor, wouldn't it be preferable to simply run the UP kernel rather than the SMP kernel with HT disabled? That leaves SMP systems, where either the BIOS could disable it (it is a BIOS bug if it can't), or as a last resort CONFIG_X86_HT (2.5) could be config'd out of the kernel. I guess I've talked myself into not missing "noht" also.
Cheers, -Len
> -----Original Message----- > From: Arjan van de Ven [mailto:arjanv@redhat.com] > Sent: Monday, June 23, 2003 7:54 AM > To: Hugh Dickins > Cc: Grover, Andrew; Arjan van de Ven; Andrew Morton; > torvalds@transmeta.com; acpi-devel@lists.sourceforge.net; > linux-kernel@vger.kernel.org > Subject: Re: [BK PATCH] acpismp=force fix > > > On Mon, Jun 23, 2003 at 12:46:38PM +0100, Hugh Dickins wrote: > > Certainly reliance on "acpismp=force" should be removed if > it's crept > > back in. But what should we do about "noht"? Wave a fond goodbye, > > and remove it's associated code and Documentation from 2.4 and 2.5 > > trees, rely on changing the BIOS setting instead? Or bring it back > > into action? > > for 2.4 it's no problem to honor it really code wise; and it's > useful for machines where you can't disable HT in the bios but where > your particular workload doesn't positively benefit from HT. > - > To unsubscribe from this list: send the line "unsubscribe > linux-kernel" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > Please read the FAQ at http://www.tux.org/lkml/ > - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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