Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262098AbVDFEGN (ORCPT ); Wed, 6 Apr 2005 00:06:13 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262099AbVDFEGN (ORCPT ); Wed, 6 Apr 2005 00:06:13 -0400 Received: from shawidc-mo1.cg.shawcable.net ([24.71.223.10]:9056 "EHLO pd3mo3so.prod.shaw.ca") by vger.kernel.org with ESMTP id S262098AbVDFEGJ (ORCPT ); Wed, 6 Apr 2005 00:06:09 -0400 Date: Tue, 05 Apr 2005 22:05:19 -0600 From: Robert Hancock Subject: Re: AMD64 Machine hardlocks when using memset In-reply-to: <3PxjH-812-3@gated-at.bofh.it> To: linux-kernel Message-id: <42535FFF.4080503@shaw.ca> MIME-version: 1.0 Content-type: text/plain; format=flowed; charset=ISO-8859-1 Content-transfer-encoding: 7bit X-Accept-Language: en-us, en References: <3Ojst-4kX-19@gated-at.bofh.it> <3OGIo-7oY-13@gated-at.bofh.it> <3OGIo-7oY-15@gated-at.bofh.it> <3OGIo-7oY-17@gated-at.bofh.it> <3OGIo-7oY-11@gated-at.bofh.it> <3OIh7-cc-1@gated-at.bofh.it> <3OITV-AR-3@gated-at.bofh.it> <3PxjH-812-3@gated-at.bofh.it> User-Agent: Mozilla Thunderbird 1.0.2 (Windows/20050317) Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1066 Lines: 27 Alan Cox wrote: > On Sad, 2005-04-02 at 05:50, Robert Hancock wrote: > >>I'm wondering if one does a ton of these cache-bypassing stores whether >>something gets hosed because of that. Not sure what that could be >>though. I don't imagine the chipset is involved with any of that on the >>Athlon 64 - either the CPU or RAM seems the most likely suspect to me > > > The glibc version is essentially the "perfect" copy function for the > CPU. If you have any bus/memory problems or chipset bugs it will bite > you. Anyone have any suggestions on how to track this further? It seems fairly clear what circumstances are causing it, but as for figuring out what's at fault.. -- Robert Hancock Saskatoon, SK, Canada To email, remove "nospam" from hancockr@nospamshaw.ca Home Page: http://www.roberthancock.com/ - 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/