From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pa0-f48.google.com (mail-pa0-f48.google.com [209.85.220.48]) by kanga.kvack.org (Postfix) with ESMTP id CFE636B0031 for ; Mon, 18 Nov 2013 14:39:50 -0500 (EST) Received: by mail-pa0-f48.google.com with SMTP id bj1so7096756pad.7 for ; Mon, 18 Nov 2013 11:39:50 -0800 (PST) Received: from psmtp.com ([74.125.245.169]) by mx.google.com with SMTP id ai2si10441277pad.1.2013.11.18.11.39.48 for ; Mon, 18 Nov 2013 11:39:49 -0800 (PST) Date: Mon, 18 Nov 2013 14:39:42 -0500 From: Vivek Goyal Subject: Re: [PATCH 0/3] Early use of boot service memory Message-ID: <20131118193942.GE32168@redhat.com> References: <20131115005049.GJ5116@anatevka.fc.hp.com> <20131115062417.GB9237@gmail.com> <5285C639.5040203@zytor.com> <20131115140738.GB6637@redhat.com> <20131115180324.GD6637@redhat.com> <20131118153211.GB32168@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Sender: owner-linux-mm@kvack.org List-ID: To: Yinghai Lu Cc: "H. Peter Anvin" , Ingo Molnar , jerry.hoemann@hp.com, Pekka Enberg , Rob Landley , Thomas Gleixner , Ingo Molnar , x86 maintainers , Matt Fleming , Andrew Morton , "list@ebiederm.org:DOCUMENTATION" , "list@ebiederm.org:MEMORY MANAGEMENT" , linux-efi@vger.kernel.org, LKML On Mon, Nov 18, 2013 at 11:34:04AM -0800, Yinghai Lu wrote: > On Mon, Nov 18, 2013 at 7:32 AM, Vivek Goyal wrote: > >> You may need bunch of PCIe cards installed. > >> > >> The system with 6TiB + 16 PCIe cards, second kernel OOM. > >> The system with 4.5TiB + 16 PCIe cards, second kernel works with vmcore dumped. > > > > What's the distro you are testing with? Do you have latest bits of > > makeudmpfile where we use cyclic mode by default and one does not need > > more reserved memory because of more physical memory present in the > > box. I suspect that might be the problem in your testing environment > > and old makedumpfile wil try to allocate larger memory on large > > RAM machines and OOM. > > Default RHEL 6.4. > > Will check if i can enable cyclic mode. 6.4 does not have makedumpfile cyclic mode support. 6.5 does and it is enabled by default and no user intervention is required to enable it. Thanks Vivek -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org