Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754870Ab0G1UAK (ORCPT ); Wed, 28 Jul 2010 16:00:10 -0400 Received: from terminus.zytor.com ([198.137.202.10]:33168 "EHLO mail.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751930Ab0G1UAG (ORCPT ); Wed, 28 Jul 2010 16:00:06 -0400 Message-ID: <4C508BF4.9050901@zytor.com> Date: Wed, 28 Jul 2010 12:58:44 -0700 From: "H. Peter Anvin" User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.7) Gecko/20100720 Fedora/3.1.1-1.fc13 Thunderbird/3.1.1 MIME-Version: 1.0 To: Yinghai Lu CC: James Bottomley , Benjamin Herrenschmidt , Ingo Molnar , Thomas Gleixner , Andrew Morton , David Miller , Linus Torvalds , Johannes Weiner , linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org, Andrew Vasquez Subject: Re: [PATCH 31/31] memblock: Add memblock_find_in_range() References: <1279822864-17154-1-git-send-email-yinghai@kernel.org> <1279822864-17154-32-git-send-email-yinghai@kernel.org> <1280295415.1970.245.camel@pasglop> <4C4FC95F.6040806@kernel.org> <4C4FD04B.5090503@zytor.com> <1280336548.30808.489.camel@mulgrave.site> <4C506E9B.4070501@zytor.com> <1280340633.30808.583.camel@mulgrave.site> <4C507728.3000207@zytor.com> <4C5084A6.9060303@kernel.org> In-Reply-To: <4C5084A6.9060303@kernel.org> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1146 Lines: 27 On 07/28/2010 12:27 PM, Yinghai Lu wrote: >> >> Yinghai, do you have any more detail, or know who would? Also copying >> the Qlogic Infinipath maintainer email... > > when I was debug memblock with x86, found the strange crash when high/low. > then use kexec with "memtest" in command line, and the early memtest does find > some bad memory. > > then I add more print about EPT physical address for first kernel, > it does show that range is used by qla driver in first kernel. > I built all needed drivers in kernel so can pxeboot the kernel on all test platforms easily. > [Cc: Andrew Vasquez, who seems to have written the offending code, checkin df613b96077cee826b14089ae6e75eeabf71faa3.] The question is still open why this particular DMA activity was not shut down before the kexec. I'm not familiar with how non-crashdump kexec idles the hardware, but it obviously better do so. -hpa -- 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/