Date: Thu, 27 Aug 2009 11:30:15 +0800 From: Erich Dollansky <erich@apsara.com.sg> To: freebsd-hackers@freebsd.org Cc: Steve Watt <steve@watt.com>, hackers@freebsd.org Subject: Re: enable ECC in OS code? Message-ID: <200908271130.18073.erich@apsara.com.sg> In-Reply-To: <200908262253.n7QMrauP063683@wattres.watt.com> References: <200908262253.n7QMrauP063683@wattres.watt.com>
next in thread | previous in thread | raw e-mail | index | archive | help
Hi, On 27 August 2009 am 06:53:36 Steve Watt wrote: > In <4A954A35.4030207@icyb.net.ua>, avg@icyb.net.ua wrote: > >Assuming that ECC data lanes are connected between the two on > > motherboard, and given that BIOS doesn't perform any ECC > > setup (nor there is any option to control that) - would it be > > possible to turn on ECC from OS code? Or is it too late in > > the game already? > > It's about 100 times easier to have the BIOS do this. First > off, it's usually quite specific to the chip set exactly how to how should it be done at OS level at all when the OS is loaded into RAM? I do not thing that normal PC hardware is capable of handling this. Only code running in a ROM can do this. Erich
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?200908271130.18073.erich>