From owner-freebsd-alpha Tue Nov 27 6:11:22 2001 Delivered-To: freebsd-alpha@freebsd.org Received: from freebie.xs4all.nl (freebie.xs4all.nl [213.84.32.253]) by hub.freebsd.org (Postfix) with ESMTP id 369D637B416 for ; Tue, 27 Nov 2001 06:11:18 -0800 (PST) Received: (from wkb@localhost) by freebie.xs4all.nl (8.11.6/8.11.6) id fAREAO003803; Tue, 27 Nov 2001 15:10:24 +0100 (CET) (envelope-from wkb) Date: Tue, 27 Nov 2001 15:10:24 +0100 From: Wilko Bulte To: Thiemo Nordenholz Cc: Falko Meyer , freebsd-alpha@FreeBSD.ORG Subject: Re: mprotect() takes quite long -- anyone knows this? Message-ID: <20011127151024.A3785@freebie.xs4all.nl> References: <3C03741A.55375021@yahoo.de> <20011127123654.A56998@mygiea.ham01.thiemo.net> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.5i In-Reply-To: <20011127123654.A56998@mygiea.ham01.thiemo.net>; from nz@thiemo.net on Tue, Nov 27, 2001 at 12:36:57PM +0100 X-OS: FreeBSD 4.4-STABLE X-PGP: finger wilko@freebsd.org Sender: owner-freebsd-alpha@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.org On Tue, Nov 27, 2001 at 12:36:57PM +0100, Thiemo Nordenholz wrote: > > I think this can't be defective memory because this machine uses ECC-RAM > > and you would see massive ECC-errors in this case. > > Do you know what FreeBSD does when an ECC error is encountered? Does it log > it? Does it just silently discard the information? Can the kernel know about > ECC corrective actions at all? I have no clue of all that... Another > information I'd be happy to get :-) Kernels in general can know about ECC errors. Tru64 e.g. handles them. So the hardware is there. I once had dodgy memory in a AS2100A which FreeBSD crashed on. But Tru64 and VMS ran on the same hardware OK. This was a while ago, I'm not sure if there have been changes in this area. Wilko -- | / o / /_ _ email: wilko@FreeBSD.org |/|/ / / /( (_) Bulte Arnhem, The Netherlands To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-alpha" in the body of the message