From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from gate.crashing.org (gate.crashing.org [63.228.1.57]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by ozlabs.org (Postfix) with ESMTPS id 820B1DE0C1 for ; Fri, 17 Apr 2009 04:22:48 +1000 (EST) Message-Id: <680ABFDC-A67F-48BB-B46C-564CB5373FEB@kernel.crashing.org> From: Kumar Gala To: Benjamin Herrenschmidt Content-Type: text/plain; charset=US-ASCII; format=flowed; delsp=yes Mime-Version: 1.0 (Apple Message framework v930.3) Subject: issues w/init Date: Thu, 16 Apr 2009 13:21:50 -0500 Cc: Linuxppc-dev Development List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Ben, The following patch is causing me issues w/init SEGV on boot. This is a pretty old version of init and I'm wondering what the commit you had related to old ABI breakage: commit 8d30c14cab30d405a05f2aaceda1e9ad57800f36 Author: Benjamin Herrenschmidt Date: Tue Feb 10 16:02:37 2009 +0000 powerpc/mm: Rework I$/D$ coherency (v3) This patch reworks the way we do I and D cache coherency on PowerPC. --- /* * Allow execution from readable areas if the MMU does not * provide separate controls over reading and executing. + * + * Note: That code used to not be enabled for 4xx/BookE. + * It is now as I/D cache coherency for these is done at + * set_pte_at() time and I see no reason why the test + * below wouldn't be valid on those processors. This - may- + * break programs compiled with a really old ABI though. */ - k