Date: Fri, 12 Mar 2010 21:56:39 +0200 From: Alexander Motin <mav@FreeBSD.org> To: Pierre Beyssac <pb@freebsd.org> Cc: freebsd-stable@freebsd.org, Jeremy Chadwick <freebsd@jdc.parodius.com> Subject: Re: (fixed) Re: 8-STABLE interrupt storm on atapci(?), Dell Inspiron 580 Message-ID: <4B9A9C77.1030100@FreeBSD.org> In-Reply-To: <20100312192759.GA91317@fasterix.frmug.org> References: <20100312121409.GA79294@fasterix.frmug.org> <20100312131832.GA54731@icarus.home.lan> <20100312165744.GA86971@fasterix.frmug.org> <20100312170936.GA59343@icarus.home.lan> <4B9A8F14.4030907@FreeBSD.org> <20100312192759.GA91317@fasterix.frmug.org>
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Pierre Beyssac wrote: > On Fri, Mar 12, 2010 at 08:59:32PM +0200, Alexander Motin wrote: >> Except ICH6 Intel uses separate IDs for AHCI and non-AHCI SATA >> controller modes. So this flag is not completely correct. But probably >> it shoudn't be just removed, as it is checked in other place. I know >> about this and going to handle it later. It's not a problem now. > > I was wondering exactly about that given the wording of the Intel > document sent by Jeremy... > >>> http://www.intel.com/Assets/PDF/specupdate/322170.pdf >> Thanks. >> PS: Check BIOS settings for enabling AHCI mode. > > Problem is, I can't find any setting to do that, either it's not > there or it's well hidden. The BIOS is up-to-date. Could it be > possible for Dell to lock the chip in non-AHCI mode? It is BIOS job to configure SATA controller mode. It is difficult to do from driver level and very vendor-specific. Yes, it happens sometimes to see BIOSes without AHCI support. -- Alexander Motin
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