Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756726Ab3CFWoD (ORCPT ); Wed, 6 Mar 2013 17:44:03 -0500 Received: from mail-ia0-f174.google.com ([209.85.210.174]:45525 "EHLO mail-ia0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751700Ab3CFWoC (ORCPT ); Wed, 6 Mar 2013 17:44:02 -0500 MIME-Version: 1.0 In-Reply-To: <5137C2C7.3020302@linux.intel.com> References: <20130306100743.GA407@polaris.bitmath.org> <20130306193612.GA513@polaris.bitmath.org> <51379A4F.4020200@linux.intel.com> <20130306195457.GA449@polaris.bitmath.org> <20130306204500.GA335@polaris.bitmath.org> <5137AE06.8060200@linux.intel.com> <5137B9DB.6000605@linux.intel.com> <20130306220412.GA1064@polaris.bitmath.org> <5137C2C7.3020302@linux.intel.com> Date: Wed, 6 Mar 2013 14:44:01 -0800 X-Google-Sender-Auth: -M96B2tQEWhO3Dih0P356Vls4nw Message-ID: Subject: Re: Linux 3.9-rc1 From: Yinghai Lu To: "H. Peter Anvin" Cc: Henrik Rydberg , Linus Torvalds , Linux Kernel Mailing List Content-Type: multipart/mixed; boundary=14dae9340e5b8dde7c04d74953dd Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 3787 Lines: 73 --14dae9340e5b8dde7c04d74953dd Content-Type: text/plain; charset=ISO-8859-1 On Wed, Mar 6, 2013 at 2:27 PM, H. Peter Anvin wrote: > On 03/06/2013 02:04 PM, Henrik Rydberg wrote: >>> >>> Sigh. This is why "keep the page tables together" is fundamentally the >>> wrong strategy. >>> >>> 8M means that we won't even be able to boot on machines with less than >>> 16M or so of RAM... I'm not sure if anyone still cares, but that is a >>> pretty aggressive heuristic. >> >> Maybe this should be a config option, given the ad-hoc nature of the >> chosen value? Anyway, the patch works. >> > > Can we make a sensible argument for what the value *needs* to be? 2M at > least makes a modicum of sense. Either way, it's clear we still have > plenty of cleaning up to do... ok, let's stay with 2M. Please check attached v1 with updated commit log. Thanks Yinghai --14dae9340e5b8dde7c04d74953dd Content-Type: application/octet-stream; name="fix_real_end_v1.patch" Content-Disposition: attachment; filename="fix_real_end_v1.patch" Content-Transfer-Encoding: base64 X-Attachment-Id: f_hdz2pq930 U3ViamVjdDogW1BBVENIXSB4ODYsIG1tOiBGaXJzdCBtYXBwZWQgYXJlYSBuZWVkIHRvIGJlIDJN IGZvciBzdXJlLgoKSGVucmlrIHJlcG9ydGVkIHRoYXQgaGlzIE1hY0FpciAzLjEgd291bGQgbm90 IGJvb3Qgd2l0aAoKfCBjb21taXQgOGQ1NzQ3MGQ4Zjg1OTYzNWRlZmZlMzkxOWQ3ZDQ4NjdiNDg4 Yjg1YQp8IERhdGU6ICAgRnJpIE5vdiAxNiAxOTozODo1OCAyMDEyIC0wODAwCnwKfCAgICB4ODYs IG1tOiBzZXR1cCBwYWdlIHRhYmxlIGluIHRvcC1kb3duCgpJdCB0dXJucyBvdXQgdGhhdCB3ZSBk byBub3QgY2FsY3VsYXRlIHRoZSByZWFsX2VuZCBwcm9wZXJseToKV2UgdHJ5IHRvIGdldCAyTSBz aXplIHdpdGggNEsgYWxpZ25tZW50LCBhbmQgbGF0ZXIgd2lsbCByb3VuZCBkb3duCnRvIDJNLCBz byB3ZSB3aWxsIGdldCBsZXNzIHRoZW4gMk0gZm9yIGZpcnN0IG1hcHBpbmcsIGluIGV4dHJlbWUK Y2FzZSBjb3VsZCBiZSBvbmx5IDRLIG9ubHkuIEluIEhlbnJpaydzIHN5c3RlbSBpdCBoYXMgKDFN LTMySykgYXMKbGFzdCB1c2FibGUgcmFnZSBpcyBbbWVtIDB4N2Y5ZGIwMDAtMHg3ZmVmOGZmZl0u CgpUaGUgcHJvYmxlbSBpcyBleHBvc2VkIHdoZW4gRUZJIGJvb3RpbmcgaGF2ZSBzZXZlcmFsIGhv bGVzIGFuZCBpdAp3aWxsIGZvcmNlIG1hcHBpbmcgdG8gdXNlIFBURSBpbnN0ZWFkIGFzIHdlIG9u bHkgbWFwIHVzYWJsZSBhcmVhcy4KClRvIGZpeCBpdCwganVzdCBtYWtlIGl0IGJlIDJNIGFsaWdu ZWQuCgpSZXBvcnRlZC1ieTogSGVucmlrIFJ5ZGJlcmcgPHJ5ZGJlcmdAZXVyb21haWwuc2U+CkJp c2VjdGVkLWJ5OiBIZW5yaWsgUnlkYmVyZyA8cnlkYmVyZ0BldXJvbWFpbC5zZT4KVGVzdGVkLWJ5 OiBIZW5yaWsgUnlkYmVyZyA8cnlkYmVyZ0BldXJvbWFpbC5zZT4KU2lnbmVkLW9mZi1ieTogWWlu Z2hhaSBMdSA8eWluZ2hhaUBrZXJuZWwub3JnPgoKLS0tCiBhcmNoL3g4Ni9tbS9pbml0LmMgfCAg ICA1ICsrLS0tCiAxIGZpbGUgY2hhbmdlZCwgMiBpbnNlcnRpb25zKCspLCAzIGRlbGV0aW9ucygt KQoKSW5kZXg6IGxpbnV4LTIuNi9hcmNoL3g4Ni9tbS9pbml0LmMKPT09PT09PT09PT09PT09PT09 PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PQotLS0gbGlu dXgtMi42Lm9yaWcvYXJjaC94ODYvbW0vaW5pdC5jCisrKyBsaW51eC0yLjYvYXJjaC94ODYvbW0v aW5pdC5jCkBAIC00MTAsOSArNDEwLDggQEAgdm9pZCBfX2luaXQgaW5pdF9tZW1fbWFwcGluZyh2 b2lkKQogCS8qIHRoZSBJU0EgcmFuZ2UgaXMgYWx3YXlzIG1hcHBlZCByZWdhcmRsZXNzIG9mIG1l bW9yeSBob2xlcyAqLwogCWluaXRfbWVtb3J5X21hcHBpbmcoMCwgSVNBX0VORF9BRERSRVNTKTsK IAotCS8qIHhlbiBoYXMgYmlnIHJhbmdlIGluIHJlc2VydmVkIG5lYXIgZW5kIG9mIHJhbSwgc2tp cCBpdCBhdCBmaXJzdCAqLwotCWFkZHIgPSBtZW1ibG9ja19maW5kX2luX3JhbmdlKElTQV9FTkRf QUREUkVTUywgZW5kLCBQTURfU0laRSwKLQkJCSBQQUdFX1NJWkUpOworCS8qIHhlbiBoYXMgYmln IHJhbmdlIGluIHJlc2VydmVkIG5lYXIgZW5kIG9mIHJhbSwgc2tpcCBpdCBhdCBmaXJzdC4qLwor CWFkZHIgPSBtZW1ibG9ja19maW5kX2luX3JhbmdlKElTQV9FTkRfQUREUkVTUywgZW5kLCBQTURf U0laRSwgUE1EX1NJWkUpOwogCXJlYWxfZW5kID0gYWRkciArIFBNRF9TSVpFOwogCiAJLyogc3Rl cF9zaXplIG5lZWQgdG8gYmUgc21hbGwgc28gcGd0X2J1ZiBmcm9tIEJSSyBjb3VsZCBjb3ZlciBp dCAqLwo= --14dae9340e5b8dde7c04d74953dd-- -- 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/