From mboxrd@z Thu Jan 1 00:00:00 1970 From: Guenter Roeck Subject: Re: [PATCH 0/2] Tentative fix for the divide-by-zero on score/paris/.. Date: Wed, 15 Apr 2015 18:43:11 -0700 Message-ID: <552F13AF.5030606@roeck-us.net> References: <20150414165000.GA19434@roeck-us.net> <1429088078-23827-1-git-send-email-quentin.casasnovas@oracle.com> <552E6722.1080507@roeck-us.net> <20150415211956.GA6703@chrystal.uk.oracle.com> Mime-Version: 1.0 Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from bh-25.webhostbox.net ([208.91.199.152]:54000 "EHLO bh-25.webhostbox.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751416AbbDPBnQ (ORCPT ); Wed, 15 Apr 2015 21:43:16 -0400 Received: from mailnull by bh-25.webhostbox.net with sa-checked (Exim 4.82) (envelope-from ) id 1YiYpn-004KA4-6j for linux-next@vger.kernel.org; Thu, 16 Apr 2015 01:43:15 +0000 In-Reply-To: <20150415211956.GA6703@chrystal.uk.oracle.com> Sender: linux-next-owner@vger.kernel.org List-ID: To: Quentin Casasnovas Cc: Rusty Russell , lkml , Stephen Rothwell , linux-next On 04/15/2015 02:19 PM, Quentin Casasnovas wrote: > On Wed, Apr 15, 2015 at 06:26:58AM -0700, Guenter Roeck wrote: >> On 04/15/2015 01:54 AM, Quentin Casasnovas wrote: >>> The following two patches might (hopefully) fix the build breakage on score >>> and some other architectures. I've checked the new __ex_table checker >>> still works on x86-64 with them (it still detects an entry pointing to >>> .altinstr_rplacement) and they should apply cleanly on top of Rusty's >>> module-next branch. >>> >>> Thanks to Guenter for the bug analysis and sorry again for the breakage. >>> >>> Let me know if this makes things better.. >>> >> >> the crash is fixed, but now I get >> >> FATAL: The relocation at __ex_table+0x4 references >> section "" which is not executable, IOW >> the kernel will fault if it ever tries to >> jump to it. Something is seriously wrong >> and should be fixed. >> >> for parisc:defconfig, >> >> FATAL: The relocation at __ex_table+0x634 references >> section "__ex_table" which is not executable, IOW >> the kernel will fault if it ever tries to >> jump to it. Something is seriously wrong >> and should be fixed. >> >> for score:allnoconfig, and >> >> FATAL: The relocation at __ex_table+0x8 references >> section "" which is not executable, IOW >> it is not possible for the kernel to fault >> at that address. Something is seriously wrong >> and should be fixed. >> >> for mn10300:defconfig. >> >> While I agree that those should get fixed (if they are real problems, >> especially the ones for parisc and mn10300), I don't think it is >> a good idea to fail the build because of it. >> >> Note that I did find the problem in the score build; that was a real bug. >> I don't know what may be wrong with the others. >> > > The attached patch fixes the build failures on parisc and mn10300 on my > defconfig build and should apply cleanly on top of the previous two. > > I'm not able to download the score cross toolchain for the moment but will > do tomorrow. Guenter, may I ask if there were any other problems than the > one you fixed in string.S there? > For >From 2e9abac9cbde18af48951c54d52c9c515f9883a7 Mon Sep 17 00:00:00 2001 From: Quentin Casasnovas Date: Wed, 15 Apr 2015 22:39:50 +0200 Subject: [PATCH] modpost: do not try to match the SHT_NUL section. Tested-by: Guenter Roeck Guenter