From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mx1.redhat.com ([209.132.183.28]) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1WYRmi-00036d-U4 for kexec@lists.infradead.org; Fri, 11 Apr 2014 03:05:45 +0000 Date: Fri, 11 Apr 2014 11:05:19 +0800 From: WANG Chao Subject: Re: [PATCH v5 00/10] kexec-tools, x86: E820 memmap pass for kdump Message-ID: <20140411030519.GF2944@dhcp-17-89.nay.redhat.com> References: <1397121186-9353-1-git-send-email-chaowang@redhat.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <1397121186-9353-1-git-send-email-chaowang@redhat.com> List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "kexec" Errors-To: kexec-bounces+dwmw2=twosheds.infradead.org@lists.infradead.org To: horms@verge.net.au, vgoyal@redhat.com, ebiederm@xmission.com, hpa@zytor.com, trenn@suse.de, dyoung@redhat.com, linn@hp.com Cc: kexec@lists.infradead.org On 04/10/14 at 05:12pm, WANG Chao wrote: > Hi, all > > (Sorry for this late update. I was occupied with something else) > > This patchset enables passing memory map via E820 map on x86 platform instead > of memmap=exactmap. It's a better design and will solve the following problem > so far: > > - kernel cmdline is limited resource and large machines tend to have many > memory ranges that may excceed kernel cmdline limit size. > - kASLR doesn't work with memmap=exactmap, because kASLR happens early than > user defined memmap=exactmap takes effect. > > Unfortunately, saved_max_pfn still got its user out there (calgry pci, it looks > like the only one). So for backward compatibility, I'm introducing a new option > --pass-memmap-cmdline to force kexec-tools to pass memmap=exactmap, the old way. > > This patchset contains massive updates from the previous one. I take some > suggestions from reviewers. I try to split the changes into smaller pieces and > keep the whole change as minimal as I can so it wouldn't be too harsh to review > the patch. I messed up this patchset and ended up with some duplicated patches :( Please ignore this patchset and take a look at the other series I just sent out with "RESEND" suject prefix. Thanks WANG Chao _______________________________________________ kexec mailing list kexec@lists.infradead.org http://lists.infradead.org/mailman/listinfo/kexec