[{"id":1754394,"web_url":"http://patchwork.ozlabs.org/comment/1754394/","msgid":"","list_archive_url":null,"date":"2017-08-22T19:24:36","subject":"Re: [LEDE-DEV] [PATCH 2/2] toolchain: gcc: drop MIPS patch","submitter":{"id":1599,"url":"http://patchwork.ozlabs.org/api/people/1599/","name":"Philip Prindeville","email":"philipp_subx@redfish-solutions.com"},"content":"> On Aug 22, 2017, at 4:01 AM, Kevin Darbyshire-Bryant wrote:\n> \n> Drop 300-mips_Os_cpu_rtx_cost_model.patch for gcc 7.2\n> \n> This was causing mis-compilation of dropbear with the default '-Os' size\n> optimization as reported in FS#814\n> \n> Tested on ar71xx, archer C7 v2. For size comparison of my whole build:\n> \n> 12058628 O2-withoutpatch-dropbearworks.bin\n> 12058628 O2-withpatch-dropbearworks.bin\n> 11468804 Os-withoutpatch-dropbearworks.bin\n> 11468804 Os-withpatch-dropbearfails.bin\n> \n> Signed-off-by: Kevin Darbyshire-Bryant \n> ---\n> .../7.2.0/300-mips_Os_cpu_rtx_cost_model.patch | 21 ---------------------\n> 1 file changed, 21 deletions(-)\n> delete mode 100644 toolchain/gcc/patches/7.2.0/300-mips_Os_cpu_rtx_cost_model.patch\n> \n> diff --git a/toolchain/gcc/patches/7.2.0/300-mips_Os_cpu_rtx_cost_model.patch b/toolchain/gcc/patches/7.2.0/300-mips_Os_cpu_rtx_cost_model.patch\n> deleted file mode 100644\n> index 84c0fda..0000000\n> --- a/toolchain/gcc/patches/7.2.0/300-mips_Os_cpu_rtx_cost_model.patch\n> +++ /dev/null\n> @@ -1,21 +0,0 @@\n> -commit ecf7671b769fe96f7b5134be442089f8bdba55d2\n> -Author: Felix Fietkau \n> -Date: Thu Aug 4 20:29:45 2016 +0200\n> -\n> -gcc: add a patch to generate better code with Os on mips\n> -\n> -Also happens to reduce compressed code size a bit\n> -\n> -Signed-off-by: Felix Fietkau \n> -\n> ---- a/gcc/config/mips/mips.c\n> -+++ b/gcc/config/mips/mips.c\n> -@@ -19784,7 +19784,7 @@ mips_option_override (void)\n> - flag_pcc_struct_return = 0;\n> - \n> - /* Decide which rtx_costs structure to use. */\n> -- if (optimize_size)\n> -+ if (0 && optimize_size)\n> - mips_cost = &mips_rtx_cost_optimize_size;\n> - else\n> - mips_cost = &mips_rtx_cost_data[mips_tune];\n> -- \n> 2.7.4\n\n\n\nLGTM","headers":{"Return-Path":"","X-Original-To":"incoming@patchwork.ozlabs.org","Delivered-To":"patchwork-incoming@bilbo.ozlabs.org","Authentication-Results":["ozlabs.org; spf=none (mailfrom)\n\tsmtp.mailfrom=lists.infradead.org (client-ip=65.50.211.133;\n\thelo=bombadil.infradead.org;\n\tenvelope-from=lede-dev-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org;\n\treceiver=)","ozlabs.org; dkim=pass (2048-bit key;\n\tunprotected) header.d=lists.infradead.org\n\theader.i=@lists.infradead.org header.b=\"dOt8Zzj2\"; \n\tdkim-atps=neutral"],"Received":["from bombadil.infradead.org (bombadil.infradead.org\n\t[65.50.211.133])\n\t(using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256\n\tbits)) (No client certificate requested)\n\tby ozlabs.org (Postfix) with ESMTPS id 3xcLB00sgcz9t0F\n\tfor ;\n\tWed, 23 Aug 2017 05:25:28 +1000 (AEST)","from localhost ([127.0.0.1] helo=bombadil.infradead.org)\n\tby bombadil.infradead.org with esmtp (Exim 4.87 #1 (Red Hat Linux))\n\tid 1dkEnc-0005v3-4S; Tue, 22 Aug 2017 19:25:16 +0000","from mail.redfish-solutions.com ([66.232.79.143])\n\tby bombadil.infradead.org with esmtps (Exim 4.87 #1 (Red Hat Linux))\n\tid 1dkEnO-0004l7-VA\n\tfor lede-dev@lists.infradead.org; Tue, 22 Aug 2017 19:25:10 +0000","from macmini.redfish-solutions.com (macmini.redfish-solutions.com\n\t[192.168.1.38]) (authenticated bits=0)\n\tby mail.redfish-solutions.com (8.15.2/8.15.2) with ESMTPSA id\n\tv7MJOavW001978\n\t(version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256\n\tverify=NO); Tue, 22 Aug 2017 13:24:36 -0600"],"DKIM-Signature":"v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed;\n\td=lists.infradead.org; s=bombadil.20170209; h=Sender:\n\tContent-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post:\n\tList-Archive:List-Unsubscribe:List-Id:Subject:To:References:Message-Id:Date:\n\tIn-Reply-To:From:Mime-Version:Reply-To:Content-ID:Content-Description:\n\tResent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:\n\tList-Owner; bh=pL/E3yC2V70CfJbXCwiOjefJP2CQHg5lGvz608ceCjA=;\n\tb=dOt8Zzj2TJ+Mdt\n\tie1/BrsXu7wDH2x6e8cd0iG/3BrSnMknpC7FQAStTh/Ib8IXnoL4Nvf5feS12iBnEAvMDZN89erTQ\n\t8HoN9/Nlup8Ktklhz1K2SM4OuqHnzKcfQVOb5Id4Oz0zIiV8XA2AIsLOdKxk3HR05JewfYIxnBiju\n\th70iSEq898qfKhHM3KT/o45+iDRqjJ82O9uQKqua0Cjeo/+SoVmFZvsv4n90UGNdKin6ueBN6/B1S\n\trFbV3s8o6dNf/fCEVq00IhOUaM0qlEwL8OnAIebMVPdcsm4DJ2W7CX54r3sSrNqi+PfK/plbq7dzH\n\tK8UiPO6lHSg2atrD2soQ==;","Mime-Version":"1.0 (Mac OS X Mail 10.3 \\(3273\\))","From":"Philip Prindeville ","In-Reply-To":"<1503396068-26205-2-git-send-email-kevin@darbyshire-bryant.me.uk>","Date":"Tue, 22 Aug 2017 13:24:36 -0600","Message-Id":"","References":"<1503396068-26205-1-git-send-email-kevin@darbyshire-bryant.me.uk>\n\t<1503396068-26205-2-git-send-email-kevin@darbyshire-bryant.me.uk>","To":"Kevin Darbyshire-Bryant ","X-Mailer":"Apple Mail (2.3273)","X-Scanned-By":"MIMEDefang 2.79 on 192.168.1.3","X-CRM114-Version":"20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 ","X-CRM114-CacheID":"sfid-20170822_122503_682013_83DBF520 ","X-CRM114-Status":"GOOD ( 11.09 )","X-Spam-Score":"-1.9 (-)","X-Spam-Report":"SpamAssassin version 3.4.1 on bombadil.infradead.org summary:\n\tContent analysis details: (-1.9 points)\n\tpts rule name description\n\t---- ----------------------\n\t--------------------------------------------------\n\t-0.0 SPF_PASS SPF: sender matches SPF record\n\t-0.0 RP_MATCHES_RCVD Envelope sender domain matches handover relay\n\tdomain\n\t-1.9 BAYES_00 BODY: Bayes spam probability is 0 to 1%\n\t[score: 0.0000]","Subject":"Re: [LEDE-DEV] [PATCH 2/2] toolchain: gcc: drop MIPS patch","X-BeenThere":"lede-dev@lists.infradead.org","X-Mailman-Version":"2.1.21","Precedence":"list","List-Id":"","List-Unsubscribe":",\n\t","List-Archive":"","List-Post":"","List-Help":"","List-Subscribe":",\n\t","Cc":"lede-dev@lists.infradead.org","Content-Type":"text/plain; charset=\"us-ascii\"","Content-Transfer-Encoding":"7bit","Sender":"\"Lede-dev\" ","Errors-To":"lede-dev-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org"}},{"id":1754903,"web_url":"http://patchwork.ozlabs.org/comment/1754903/","msgid":"","list_archive_url":null,"date":"2017-08-23T08:20:46","subject":"Re: [LEDE-DEV] [PATCH 2/2] toolchain: gcc: drop MIPS patch","submitter":{"id":8537,"url":"http://patchwork.ozlabs.org/api/people/8537/","name":"Felix Fietkau","email":"nbd@nbd.name"},"content":"On 2017-08-22 12:01, Kevin Darbyshire-Bryant wrote:\n> Drop 300-mips_Os_cpu_rtx_cost_model.patch for gcc 7.2\n> \n> This was causing mis-compilation of dropbear with the default '-Os' size\n> optimization as reported in FS#814\n> \n> Tested on ar71xx, archer C7 v2. For size comparison of my whole build:\n> \n> 12058628 O2-withoutpatch-dropbearworks.bin\n> 12058628 O2-withpatch-dropbearworks.bin\n> 11468804 Os-withoutpatch-dropbearworks.bin\n> 11468804 Os-withpatch-dropbearfails.bin\n> \n> Signed-off-by: Kevin Darbyshire-Bryant \nI strongly suspect that this change is hiding the real bug instead of\nfixing it. Please double-check that the mis-compilation also does not\nhappen with -O2 instead of -Os.\n\n- Felix","headers":{"Return-Path":"","X-Original-To":"incoming@patchwork.ozlabs.org","Delivered-To":"patchwork-incoming@bilbo.ozlabs.org","Authentication-Results":["ozlabs.org; spf=none (mailfrom)\n\tsmtp.mailfrom=lists.infradead.org (client-ip=65.50.211.133;\n\thelo=bombadil.infradead.org;\n\tenvelope-from=lede-dev-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org;\n\treceiver=)","ozlabs.org; dkim=pass (2048-bit key;\n\tunprotected) header.d=lists.infradead.org\n\theader.i=@lists.infradead.org header.b=\"WB56tOAt\"; \n\tdkim=fail reason=\"signature verification failed\" (1024-bit key;\n\tunprotected) header.d=nbd.name header.i=@nbd.name header.b=\"PqsD0Tj/\";\n\tdkim-atps=neutral"],"Received":["from bombadil.infradead.org (bombadil.infradead.org\n\t[65.50.211.133])\n\t(using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256\n\tbits)) (No client certificate requested)\n\tby ozlabs.org (Postfix) with ESMTPS id 3xcgPP3dxWz9ryk\n\tfor ;\n\tWed, 23 Aug 2017 18:21:29 +1000 (AEST)","from localhost ([127.0.0.1] helo=bombadil.infradead.org)\n\tby bombadil.infradead.org with esmtp (Exim 4.87 #1 (Red Hat Linux))\n\tid 1dkQuZ-0002mn-T7; Wed, 23 Aug 2017 08:21:15 +0000","from nbd.name ([2a01:4f8:131:30e2::2])\n\tby bombadil.infradead.org with esmtps (Exim 4.87 #1 (Red Hat Linux))\n\tid 1dkQuV-0002l9-Bo\n\tfor lede-dev@lists.infradead.org; Wed, 23 Aug 2017 08:21:13 +0000"],"DKIM-Signature":["v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed;\n\td=lists.infradead.org; s=bombadil.20170209; h=Sender:\n\tContent-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post:\n\tList-Archive:List-Unsubscribe:List-Id:Subject:In-Reply-To:MIME-Version:Date:\n\tMessage-ID:From:References:To:Reply-To:Cc:Content-ID:Content-Description:\n\tResent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:\n\tList-Owner; bh=JhBc8kv/6M7QSnoRMeI8cDsBI6j6O1t6GoIlKSeOmbY=;\n\tb=WB56tOAtWz2LXj\n\tyv6HnSwWaWd+H9iMku5G168Ou1v1+mCvhj+yg2zwxpyr33UH3iRKp6ljOSp5sKjNsXl7QwdDSNiRQ\n\tQFl9C/6SKz4U/WA+haxleHjeg5YYierPxLKn/Zlt/2jWkLiHzw8srq4b6tJzH0EPngfiIwo5iUGTc\n\tSSFlDdf2vfi8lbrITj50bjThOJPirYx54PqmDd1bELxyh7FVor/x+9676qfo7YXCbE65Rw0vjsTQO\n\tOyftRWMpridpilj+Ernyvl5vEJYherWuPbr6q++JP3E+EZIpFm4qo+pg5ak5dG5/Y66DB9LxJdfxH\n\tOXS0WvIEjW7WR3aQiagA==;","v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=nbd.name; \n\ts=20160729; \n\th=Content-Transfer-Encoding:Content-Type:In-Reply-To:MIME-Version:Date:Message-ID:From:References:To:Subject;\n\tbh=K8AK0H+x0+ErjzPjr3hdRIlLk2QxogQoLHijNNWPlek=; \n\tb=PqsD0Tj/JuQKu2GMjfF5AdmDZU/kInocIX0S/9O3rOOlKz1ZUAbUITvlpyG/NLbLYgFxZB3sXE+jADsbuElMPz5gKy3V3/ZLEhMHcKL8kuco4y/7yau2TAYq7Tj7uaQJKFgP+MQt4GAyFLeAp2TNlKLHrNBjIbbQUQJ/rCtiIag=;"],"To":"Kevin Darbyshire-Bryant ,\n\tlede-dev@lists.infradead.org","References":"<1503396068-26205-1-git-send-email-kevin@darbyshire-bryant.me.uk>\n\t<1503396068-26205-2-git-send-email-kevin@darbyshire-bryant.me.uk>","From":"Felix Fietkau ","Message-ID":"","Date":"Wed, 23 Aug 2017 10:20:46 +0200","User-Agent":"Mozilla/5.0 (Macintosh; Intel Mac OS X 10.12; rv:52.0)\n\tGecko/20100101 Thunderbird/52.3.0","MIME-Version":"1.0","In-Reply-To":"<1503396068-26205-2-git-send-email-kevin@darbyshire-bryant.me.uk>","Content-Language":"en-US","X-CRM114-Version":"20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 ","X-CRM114-CacheID":"sfid-20170823_012111_878278_B9CEBB8A ","X-CRM114-Status":"UNSURE ( 6.96 )","X-CRM114-Notice":"Please train this message.","X-Spam-Score":"-2.0 (--)","X-Spam-Report":"SpamAssassin version 3.4.1 on bombadil.infradead.org summary:\n\tContent analysis details: (-2.0 points)\n\tpts rule name description\n\t---- ----------------------\n\t--------------------------------------------------\n\t-0.0 RP_MATCHES_RCVD Envelope sender domain matches handover relay\n\tdomain\n\t-1.9 BAYES_00 BODY: Bayes spam probability is 0 to 1%\n\t[score: 0.0000]\n\t-0.1 DKIM_VALID Message has at least one valid DKIM or DK signature\n\t0.1 DKIM_SIGNED Message has a DKIM or DK signature,\n\tnot necessarily valid\n\t-0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from\n\tauthor's domain","Subject":"Re: [LEDE-DEV] [PATCH 2/2] toolchain: gcc: drop MIPS patch","X-BeenThere":"lede-dev@lists.infradead.org","X-Mailman-Version":"2.1.21","Precedence":"list","List-Id":"","List-Unsubscribe":",\n\t","List-Archive":"","List-Post":"","List-Help":"","List-Subscribe":",\n\t","Content-Type":"text/plain; charset=\"us-ascii\"","Content-Transfer-Encoding":"7bit","Sender":"\"Lede-dev\" ","Errors-To":"lede-dev-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org"}},{"id":1754938,"web_url":"http://patchwork.ozlabs.org/comment/1754938/","msgid":"<75889596-d73c-5598-d248-5888d8927782@darbyshire-bryant.me.uk>","list_archive_url":null,"date":"2017-08-23T08:50:57","subject":"Re: [LEDE-DEV] [PATCH 2/2] toolchain: gcc: drop MIPS patch","submitter":{"id":66241,"url":"http://patchwork.ozlabs.org/api/people/66241/","name":"Kevin Darbyshire-Bryant","email":"kevin@darbyshire-bryant.me.uk"},"content":"On 23/08/17 09:20, Felix Fietkau wrote:\n> On 2017-08-22 12:01, Kevin Darbyshire-Bryant wrote:\n>> Drop 300-mips_Os_cpu_rtx_cost_model.patch for gcc 7.2\n>>\n>> This was causing mis-compilation of dropbear with the default '-Os' size\n>> optimization as reported in FS#814\n>>\n>> Tested on ar71xx, archer C7 v2. For size comparison of my whole build:\n>>\n>> 12058628 O2-withoutpatch-dropbearworks.bin\n>> 12058628 O2-withpatch-dropbearworks.bin\n>> 11468804 Os-withoutpatch-dropbearworks.bin\n>> 11468804 Os-withpatch-dropbearfails.bin\n>>\n>> Signed-off-by: Kevin Darbyshire-Bryant \n> I strongly suspect that this change is hiding the real bug instead of\n> fixing it. Please double-check that the mis-compilation also does not\n> happen with -O2 instead of -Os.\n\nHi Felix,\n\nThe symptom of dropbear not responding (it goes into a tight loop) \n*only* occurs for me with the patch installed and with '-Os'. As \ndocumented in the FS report, starting with gcc 7.1, dropbear (and for \nsome uhttpd) go AWOL when built with '-Os'. Initially I did not \nexperience that issue because I always build with '-O2', however by \nswitching to '-Os' I was able to reproduce the behaviour.\n\nAs part of my bump to gcc 7.2 and 'cargo culting/refreshing' the 7.1 \npatches across, I thought I would investigate if the same erroneous \nbehaviour existed - it did. So questions: Why MIPS only, why only with \n'-Os' and not '-O2', why is no one else screaming about this? Many \nexperiments and 'make dirclean' (to ensure gcc and the whole router \nimage rebuilt) later I reached my conclusions with \n300-mips_Os_cpu_rtx_cost_model.patch.\n\nWhat I have not done is check to see if removal of \n300-mips_Os_cpu_rtx_cost_model.patch on gcc 7.1 solves the problem \nthere, it could be that gcc 7.1 also had a bug.\n\nCheers,\n\nKevin\n\n\n\n> \n> - Felix\n>","headers":{"Return-Path":"","X-Original-To":"incoming@patchwork.ozlabs.org","Delivered-To":"patchwork-incoming@bilbo.ozlabs.org","Authentication-Results":["ozlabs.org; spf=none (mailfrom)\n\tsmtp.mailfrom=lists.infradead.org (client-ip=65.50.211.133;\n\thelo=bombadil.infradead.org;\n\tenvelope-from=lede-dev-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org;\n\treceiver=)","ozlabs.org; dkim=pass (2048-bit key;\n\tunprotected) header.d=lists.infradead.org\n\theader.i=@lists.infradead.org header.b=\"HOFuBUvs\"; \n\tdkim=fail reason=\"signature verification failed\" (1024-bit key;\n\tunprotected) header.d=darbyshire-bryant.me.uk\n\theader.i=@darbyshire-bryant.me.uk header.b=\"PpnKhMj4\"; 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charset=\"us-ascii\"; Format=\"flowed\"","Sender":"\"Lede-dev\" ","Errors-To":"lede-dev-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org"}},{"id":1754949,"web_url":"http://patchwork.ozlabs.org/comment/1754949/","msgid":"","list_archive_url":null,"date":"2017-08-23T08:57:04","subject":"Re: [LEDE-DEV] [PATCH 2/2] toolchain: gcc: drop MIPS patch","submitter":{"id":69072,"url":"http://patchwork.ozlabs.org/api/people/69072/","name":"Syrone Wong","email":"wong.syrone@gmail.com"},"content":"Hi,\n\nBased on my test, it works well even if you keep this mips patch,\nupstream already update libtommath and libtomcrypt\nto latest, and I can confirm the update to these two libs fixes\ndropbear misbehavior on mips.\n\nhttps://github.com/mkj/dropbear/commit/a79b61517bc7123250d0e2dc21dc18deccf0bb64\nhttps://github.com/mkj/dropbear/commit/364fb6019c1931de3d181f21ea491ec112161577\n\n\nBest Regards,\nSyrone Wong\n\n\nOn Wed, Aug 23, 2017 at 4:50 PM, Kevin Darbyshire-Bryant\n wrote:\n>\n>\n> On 23/08/17 09:20, Felix Fietkau wrote:\n>>\n>> On 2017-08-22 12:01, Kevin Darbyshire-Bryant wrote:\n>>>\n>>> Drop 300-mips_Os_cpu_rtx_cost_model.patch for gcc 7.2\n>>>\n>>> This was causing mis-compilation of dropbear with the default '-Os' size\n>>> optimization as reported in FS#814\n>>>\n>>> Tested on ar71xx, archer C7 v2. For size comparison of my whole build:\n>>>\n>>> 12058628 O2-withoutpatch-dropbearworks.bin\n>>> 12058628 O2-withpatch-dropbearworks.bin\n>>> 11468804 Os-withoutpatch-dropbearworks.bin\n>>> 11468804 Os-withpatch-dropbearfails.bin\n>>>\n>>> Signed-off-by: Kevin Darbyshire-Bryant \n>>\n>> I strongly suspect that this change is hiding the real bug instead of\n>> fixing it. Please double-check that the mis-compilation also does not\n>> happen with -O2 instead of -Os.\n>\n>\n> Hi Felix,\n>\n> The symptom of dropbear not responding (it goes into a tight loop) *only*\n> occurs for me with the patch installed and with '-Os'. As documented in the\n> FS report, starting with gcc 7.1, dropbear (and for some uhttpd) go AWOL\n> when built with '-Os'. Initially I did not experience that issue because I\n> always build with '-O2', however by switching to '-Os' I was able to\n> reproduce the behaviour.\n>\n> As part of my bump to gcc 7.2 and 'cargo culting/refreshing' the 7.1 patches\n> across, I thought I would investigate if the same erroneous behaviour\n> existed - it did. So questions: Why MIPS only, why only with '-Os' and not\n> '-O2', why is no one else screaming about this? Many experiments and 'make\n> dirclean' (to ensure gcc and the whole router image rebuilt) later I reached\n> my conclusions with 300-mips_Os_cpu_rtx_cost_model.patch.\n>\n> What I have not done is check to see if removal of\n> 300-mips_Os_cpu_rtx_cost_model.patch on gcc 7.1 solves the problem there, it\n> could be that gcc 7.1 also had a bug.\n>\n> Cheers,\n>\n> Kevin\n>\n>\n>\n>\n>>\n>> - Felix\n>>\n>\n> _______________________________________________\n> Lede-dev mailing list\n> Lede-dev@lists.infradead.org\n> http://lists.infradead.org/mailman/listinfo/lede-dev","headers":{"Return-Path":"","X-Original-To":"incoming@patchwork.ozlabs.org","Delivered-To":"patchwork-incoming@bilbo.ozlabs.org","Authentication-Results":["ozlabs.org; spf=none (mailfrom)\n\tsmtp.mailfrom=lists.infradead.org (client-ip=65.50.211.133;\n\thelo=bombadil.infradead.org;\n\tenvelope-from=lede-dev-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org;\n\treceiver=)","ozlabs.org; dkim=pass (2048-bit key;\n\tunprotected) header.d=lists.infradead.org\n\theader.i=@lists.infradead.org header.b=\"Dpid7pc9\"; 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charset=\"us-ascii\"","Content-Transfer-Encoding":"7bit","Sender":"\"Lede-dev\" ","Errors-To":"lede-dev-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org"}},{"id":1755125,"web_url":"http://patchwork.ozlabs.org/comment/1755125/","msgid":"<624b2c47-e640-83d7-32f9-76d0ac92cf5d@darbyshire-bryant.me.uk>","list_archive_url":null,"date":"2017-08-23T12:03:52","subject":"Re: [LEDE-DEV] [PATCH 2/2] toolchain: gcc: drop MIPS patch","submitter":{"id":66241,"url":"http://patchwork.ozlabs.org/api/people/66241/","name":"Kevin Darbyshire-Bryant","email":"kevin@darbyshire-bryant.me.uk"},"content":"On 23/08/17 09:20, Felix Fietkau wrote:\n> On 2017-08-22 12:01, Kevin Darbyshire-Bryant wrote:\n>> Drop 300-mips_Os_cpu_rtx_cost_model.patch for gcc 7.2\n>>\n>> This was causing mis-compilation of dropbear with the default '-Os' size\n>> optimization as reported in FS#814\n>>\n>> Tested on ar71xx, archer C7 v2. For size comparison of my whole build:\n>>\n>> 12058628 O2-withoutpatch-dropbearworks.bin\n>> 12058628 O2-withpatch-dropbearworks.bin\n>> 11468804 Os-withoutpatch-dropbearworks.bin\n>> 11468804 Os-withpatch-dropbearfails.bin\n>>\n>> Signed-off-by: Kevin Darbyshire-Bryant \n> I strongly suspect that this change is hiding the real bug instead of\n> fixing it. Please double-check that the mis-compilation also does not\n> happen with -O2 instead of -Os.\n> \n> - Felix\n>\n\nTo further expand on this: I switched from the 74kc cpu target to 24kc \n(which is the lede default)\n\n11993092 24O2-withoutpatch-works.bin\n12058628 24O2-withpatch-works.bin\n11403268 24Os-withoutpatch-works.bin\n11468804 24Os-withpatch-fails.bin\n\n2 observations: The working/not working follows the same pattern as \nfound with 74kc. Sizes on 24kc are always larger with the patch.\n\nKevin","headers":{"Return-Path":"","X-Original-To":"incoming@patchwork.ozlabs.org","Delivered-To":"patchwork-incoming@bilbo.ozlabs.org","Authentication-Results":["ozlabs.org; spf=none (mailfrom)\n\tsmtp.mailfrom=lists.infradead.org (client-ip=65.50.211.133;\n\thelo=bombadil.infradead.org;\n\tenvelope-from=lede-dev-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org;\n\treceiver=)","ozlabs.org; dkim=pass (2048-bit key;\n\tunprotected) header.d=lists.infradead.org\n\theader.i=@lists.infradead.org header.b=\"tfFFLz0F\"; \n\tdkim=fail reason=\"signature verification failed\" (1024-bit key;\n\tunprotected) header.d=darbyshire-bryant.me.uk\n\theader.i=@darbyshire-bryant.me.uk header.b=\"FFJ7Xb0q\"; \n\tdkim-atps=neutral","spf=none (sender IP is )\n\tsmtp.mailfrom=kevin@darbyshire-bryant.me.uk; "],"Received":["from bombadil.infradead.org (bombadil.infradead.org\n\t[65.50.211.133])\n\t(using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256\n\tbits)) (No client certificate requested)\n\tby ozlabs.org (Postfix) with ESMTPS id 3xcmMm5NFDz9s9Y\n\tfor ;\n\tWed, 23 Aug 2017 22:05:24 +1000 (AEST)","from localhost ([127.0.0.1] helo=bombadil.infradead.org)\n\tby bombadil.infradead.org with esmtp (Exim 4.87 #1 (Red Hat Linux))\n\tid 1dkUPE-0000e0-Pm; 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a=rsa-sha256; c=relaxed/relaxed;\n\td=darbyshire-bryant.me.uk; s=selector1;\n\th=From:Date:Subject:Message-ID:Content-Type:MIME-Version;\n\tbh=c7wU0P/ZmGUWddFY3zGt1sp9jzsQ1bygIeE93HRcdz8=;\n\tb=FFJ7Xb0qDcb7lMVms51hJpPCjBXjl+qMsmthZGAntxJ9XxpJSHZ2DzU523KUXPhYF0AlBPjxSCJcx0BbJgQSHMytyKQGwm8FuIf8NKB9DSdefm6PdktBFPXoUfW/UytHNjgQgu2KlNRrdvC0NsCAWmz/FNkno1SgfyK9/tpoVXU="],"To":"Felix Fietkau , lede-dev@lists.infradead.org","References":"<1503396068-26205-1-git-send-email-kevin@darbyshire-bryant.me.uk>\n\t<1503396068-26205-2-git-send-email-kevin@darbyshire-bryant.me.uk>\n\t","From":"Kevin Darbyshire-Bryant ","Message-ID":"<624b2c47-e640-83d7-32f9-76d0ac92cf5d@darbyshire-bryant.me.uk>","Date":"Wed, 23 Aug 2017 13:03:52 +0100","User-Agent":"Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101\n\tThunderbird/52.2.1","MIME-Version":"1.0","In-Reply-To":"","Content-Language":"en-GB","X-Originating-IP":"[2a02:c7f:1220:bf20::fb0e]","X-ClientProxiedBy":"DB6PR0301CA0062.eurprd03.prod.outlook.com\n\t(2603:10a6:4:54::30) To DB5PR07MB1031.eurprd07.prod.outlook.com\n\t(2a01:111:e400:510d::24)","X-MS-PublicTrafficType":"Email","X-MS-Office365-Filtering-Correlation-Id":"3cfab58b-24b8-4211-4571-08d4ea1f073d","X-Microsoft-Antispam":"UriScan:; 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charset=\"us-ascii\"; Format=\"flowed\"","Sender":"\"Lede-dev\" ","Errors-To":"lede-dev-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org"}},{"id":1755543,"web_url":"http://patchwork.ozlabs.org/comment/1755543/","msgid":"<20170823192510.Horde.YaeFLmHyOZxO8XJXM7a8X-4@mail.de-korte.org>","list_archive_url":null,"date":"2017-08-23T17:25:10","subject":"Re: [LEDE-DEV] [PATCH 2/2] toolchain: gcc: drop MIPS patch","submitter":{"id":69024,"url":"http://patchwork.ozlabs.org/api/people/69024/","name":"Arjen de Korte","email":"arjen+lede@de-korte.org"},"content":"Citeren Kevin Darbyshire-Bryant :\n\n> On 23/08/17 09:20, Felix Fietkau wrote:\n>> On 2017-08-22 12:01, Kevin Darbyshire-Bryant wrote:\n>>> Drop 300-mips_Os_cpu_rtx_cost_model.patch for gcc 7.2\n>>>\n>>> This was causing mis-compilation of dropbear with the default '-Os' size\n>>> optimization as reported in FS#814\n>>>\n>>> Tested on ar71xx, archer C7 v2. For size comparison of my whole build:\n>>>\n>>> 12058628 O2-withoutpatch-dropbearworks.bin\n>>> 12058628 O2-withpatch-dropbearworks.bin\n>>> 11468804 Os-withoutpatch-dropbearworks.bin\n>>> 11468804 Os-withpatch-dropbearfails.bin\n>>>\n>>> Signed-off-by: Kevin Darbyshire-Bryant \n>> I strongly suspect that this change is hiding the real bug instead of\n>> fixing it. Please double-check that the mis-compilation also does not\n>> happen with -O2 instead of -Os.\n>>\n>> - Felix\n>>\n>\n> To further expand on this: I switched from the 74kc cpu target to \n> 24kc (which is the lede default)\n>\n> 11993092 24O2-withoutpatch-works.bin\n> 12058628 24O2-withpatch-works.bin\n> 11403268 24Os-withoutpatch-works.bin\n> 11468804 24Os-withpatch-fails.bin\n>\n> 2 observations: The working/not working follows the same pattern as \n> found with 74kc. Sizes on 24kc are always larger with the patch.\n\nWhile removing the MIPS patch fixes dropbear when using gcc 7.1.0 and \n'-Os', uhttpd goes tits up with a segfault in liblua. With '-O2' it's \nfine for both, so I'll probably stick with that for now.","headers":{"Return-Path":"","X-Original-To":"incoming@patchwork.ozlabs.org","Delivered-To":"patchwork-incoming@bilbo.ozlabs.org","Authentication-Results":["ozlabs.org; spf=none (mailfrom)\n\tsmtp.mailfrom=lists.infradead.org (client-ip=65.50.211.133;\n\thelo=bombadil.infradead.org;\n\tenvelope-from=lede-dev-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org;\n\treceiver=)","ozlabs.org; dkim=pass (2048-bit key;\n\tunprotected) header.d=lists.infradead.org\n\theader.i=@lists.infradead.org header.b=\"pGK/1gul\"; \n\tdkim=fail reason=\"signature verification failed\" (1024-bit key;\n\tunprotected) header.d=de-korte.org header.i=@de-korte.org\n\theader.b=\"Hj4xG1l0\"; dkim-atps=neutral"],"Received":["from bombadil.infradead.org (bombadil.infradead.org\n\t[65.50.211.133])\n\t(using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256\n\tbits)) (No client certificate requested)\n\tby ozlabs.org (Postfix) with ESMTPS id 3xcvTY0kVdz9ryv\n\tfor ;\n\tThu, 24 Aug 2017 03:25:52 +1000 (AEST)","from localhost ([127.0.0.1] helo=bombadil.infradead.org)\n\tby bombadil.infradead.org with esmtp (Exim 4.87 #1 (Red Hat Linux))\n\tid 1dkZPU-0000mV-Ch; 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charset=\"us-ascii\"; Format=\"flowed\"; DelSp=\"Yes\"","Sender":"\"Lede-dev\" ","Errors-To":"lede-dev-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org"}},{"id":1756048,"web_url":"http://patchwork.ozlabs.org/comment/1756048/","msgid":"","list_archive_url":null,"date":"2017-08-24T08:44:59","subject":"Re: [LEDE-DEV] [PATCH 2/2] toolchain: gcc: drop MIPS patch","submitter":{"id":66241,"url":"http://patchwork.ozlabs.org/api/people/66241/","name":"Kevin Darbyshire-Bryant","email":"kevin@darbyshire-bryant.me.uk"},"content":"On 23/08/17 18:25, Arjen de Korte wrote:\n\n> While removing the MIPS patch fixes dropbear when using gcc 7.1.0 and \n> '-Os', uhttpd goes tits up with a segfault in liblua. With '-O2' it's \n> fine for both, so I'll probably stick with that for now.\n\nWhat about with gcc 7.2.0?","headers":{"Return-Path":"","X-Original-To":"incoming@patchwork.ozlabs.org","Delivered-To":"patchwork-incoming@bilbo.ozlabs.org","Authentication-Results":["ozlabs.org; spf=none (mailfrom)\n\tsmtp.mailfrom=lists.infradead.org (client-ip=65.50.211.133;\n\thelo=bombadil.infradead.org;\n\tenvelope-from=lede-dev-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org;\n\treceiver=)","ozlabs.org; dkim=pass (2048-bit key;\n\tunprotected) header.d=lists.infradead.org\n\theader.i=@lists.infradead.org header.b=\"qi6PkbLj\"; \n\tdkim=fail reason=\"signature verification failed\" (1024-bit key;\n\tunprotected) header.d=darbyshire-bryant.me.uk\n\theader.i=@darbyshire-bryant.me.uk header.b=\"JSrdHC6N\"; \n\tdkim-atps=neutral","spf=none (sender IP is )\n\tsmtp.mailfrom=kevin@darbyshire-bryant.me.uk; "],"Received":["from bombadil.infradead.org (bombadil.infradead.org\n\t[65.50.211.133])\n\t(using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256\n\tbits)) (No client certificate requested)\n\tby ozlabs.org (Postfix) with ESMTPS id 3xdHtv1Bmxz9s4s\n\tfor ;\n\tThu, 24 Aug 2017 18:45:43 +1000 (AEST)","from localhost ([127.0.0.1] helo=bombadil.infradead.org)\n\tby bombadil.infradead.org with esmtp (Exim 4.87 #1 (Red Hat Linux))\n\tid 1dknlc-0007Tn-7N; 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SFP:1101; SCL:1; SRVR:AM2PR07MB1025;\n\tH:[IPv6:2a02:c7f:1220:bf20::fb0e]; FPR:; SPF:None; PTR:InfoNoRecords;\n\tA:1; MX:1; LANG:en; ","Received-SPF":"None (protection.outlook.com: darbyshire-bryant.me.uk does not\n\tdesignate permitted sender hosts)","SpamDiagnosticOutput":"1:99","SpamDiagnosticMetadata":"NSPM","X-OriginatorOrg":"darbyshire-bryant.me.uk","X-MS-Exchange-CrossTenant-OriginalArrivalTime":"24 Aug 2017 08:45:02.0084\n\t(UTC)","X-MS-Exchange-CrossTenant-FromEntityHeader":"Hosted","X-MS-Exchange-Transport-CrossTenantHeadersStamped":"AM2PR07MB1025","X-CRM114-Version":"20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 ","X-CRM114-CacheID":"sfid-20170824_014526_625869_DB03C405 ","X-CRM114-Status":"UNSURE ( 3.95 )","X-CRM114-Notice":"Please train this message.","X-Spam-Score":"-2.0 (--)","X-Spam-Report":"SpamAssassin version 3.4.1 on bombadil.infradead.org summary:\n\tContent analysis details: (-2.0 points)\n\tpts rule name description\n\t---- ----------------------\n\t--------------------------------------------------\n\t-0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at http://www.dnswl.org/,\n\tno\n\ttrust [2a01:111:f400:fe1e:0:0:0:621 listed in] [list.dnswl.org]\n\t-0.0 SPF_PASS SPF: sender matches SPF record\n\t-0.0 SPF_HELO_PASS SPF: HELO matches SPF record\n\t-1.9 BAYES_00 BODY: Bayes spam probability is 0 to 1%\n\t[score: 0.0000]\n\t-0.1 DKIM_VALID Message has at least one valid DKIM or DK signature\n\t0.1 DKIM_SIGNED Message has a DKIM or DK signature,\n\tnot necessarily valid\n\t-0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from\n\tauthor's domain","Subject":"Re: [LEDE-DEV] [PATCH 2/2] toolchain: gcc: drop MIPS patch","X-BeenThere":"lede-dev@lists.infradead.org","X-Mailman-Version":"2.1.21","Precedence":"list","List-Id":"","List-Unsubscribe":",\n\t","List-Archive":"","List-Post":"","List-Help":"","List-Subscribe":",\n\t","Content-Transfer-Encoding":"7bit","Content-Type":"text/plain; charset=\"us-ascii\"; Format=\"flowed\"","Sender":"\"Lede-dev\" ","Errors-To":"lede-dev-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org"}},{"id":1756075,"web_url":"http://patchwork.ozlabs.org/comment/1756075/","msgid":"<20170824105657.Horde.OXF0e37UE7Pz5pS5PXOmT6j@mail.de-korte.org>","list_archive_url":null,"date":"2017-08-24T08:56:57","subject":"Re: [LEDE-DEV] [PATCH 2/2] toolchain: gcc: drop MIPS patch","submitter":{"id":69024,"url":"http://patchwork.ozlabs.org/api/people/69024/","name":"Arjen de Korte","email":"arjen+lede@de-korte.org"},"content":"Citeren Kevin Darbyshire-Bryant :\n\n> On 23/08/17 18:25, Arjen de Korte wrote:\n>\n>> While removing the MIPS patch fixes dropbear when using gcc 7.1.0 \n>> and '-Os', uhttpd goes tits up with a segfault in liblua. With \n>> '-O2' it's fine for both, so I'll probably stick with that for now.\n>\n> What about with gcc 7.2.0?\n\nGood question. I'll try that later today.","headers":{"Return-Path":"","X-Original-To":"incoming@patchwork.ozlabs.org","Delivered-To":"patchwork-incoming@bilbo.ozlabs.org","Authentication-Results":["ozlabs.org; spf=none (mailfrom)\n\tsmtp.mailfrom=lists.infradead.org (client-ip=65.50.211.133;\n\thelo=bombadil.infradead.org;\n\tenvelope-from=lede-dev-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org;\n\treceiver=)","ozlabs.org; dkim=pass (2048-bit key;\n\tunprotected) header.d=lists.infradead.org\n\theader.i=@lists.infradead.org header.b=\"Jo9tozWc\"; \n\tdkim=fail reason=\"signature verification failed\" (1024-bit key;\n\tunprotected) header.d=de-korte.org header.i=@de-korte.org\n\theader.b=\"cAYSYXi6\"; dkim-atps=neutral"],"Received":["from bombadil.infradead.org (bombadil.infradead.org\n\t[65.50.211.133])\n\t(using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256\n\tbits)) (No client certificate requested)\n\tby ozlabs.org (Postfix) with ESMTPS id 3xdJ8b5PSQz9s8P\n\tfor ;\n\tThu, 24 Aug 2017 18:57:35 +1000 (AEST)","from localhost ([127.0.0.1] helo=bombadil.infradead.org)\n\tby bombadil.infradead.org with esmtp (Exim 4.87 #1 (Red Hat Linux))\n\tid 1dknx7-0005qa-Lt; 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charset=\"us-ascii\"; Format=\"flowed\"; DelSp=\"Yes\"","Sender":"\"Lede-dev\" ","Errors-To":"lede-dev-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org"}},{"id":1756632,"web_url":"http://patchwork.ozlabs.org/comment/1756632/","msgid":"<20170824194821.Horde.P_Eb5kkiY9fHIAFT9W5Q49Q@mail.de-korte.org>","list_archive_url":null,"date":"2017-08-24T17:48:21","subject":"Re: [LEDE-DEV] [PATCH 2/2] toolchain: gcc: drop MIPS patch","submitter":{"id":69024,"url":"http://patchwork.ozlabs.org/api/people/69024/","name":"Arjen de Korte","email":"arjen+lede@de-korte.org"},"content":"Citeren Arjen de Korte :\n\n> Citeren Kevin Darbyshire-Bryant :\n>\n>> On 23/08/17 18:25, Arjen de Korte wrote:\n>>\n>>> While removing the MIPS patch fixes dropbear when using gcc 7.1.0 \n>>> and '-Os', uhttpd goes tits up with a segfault in liblua. With \n>>> '-O2' it's fine for both, so I'll probably stick with that for now.\n>>\n>> What about with gcc 7.2.0?\n>\n> Good question. I'll try that later today.\n\nNo joy, uhttpd still fails to start with exactly the same errormessage \nas with gcc 7.1.0:\n\nThu Aug 24 19:44:23 2017 kern.info kernel: [ 49.227713]\nThu Aug 24 19:44:23 2017 kern.info kernel: [ 49.227713] \ndo_page_fault(): sending SIGSEGV to uhttpd for invalid read access \nfrom 778c50d8\nThu Aug 24 19:44:23 2017 kern.info kernel: [ 49.227734] epc = \n778cc277 in liblua.so.5.1.5[778c6000+2e000]\nThu Aug 24 19:44:23 2017 kern.info kernel: [ 49.230672] ra = \n778cc271 in liblua.so.5.1.5[778c6000+2e000]\nThu Aug 24 19:44:23 2017 kern.info kernel: [ 49.233703]\nThu Aug 24 19:44:23 2017 daemon.info procd: Instance uhttpd::instance1 \ns in a crash loop 6 crashes, 0 seconds since last crash","headers":{"Return-Path":"","X-Original-To":"incoming@patchwork.ozlabs.org","Delivered-To":"patchwork-incoming@bilbo.ozlabs.org","Authentication-Results":["ozlabs.org; spf=none (mailfrom)\n\tsmtp.mailfrom=lists.infradead.org (client-ip=65.50.211.133;\n\thelo=bombadil.infradead.org;\n\tenvelope-from=lede-dev-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org;\n\treceiver=)","ozlabs.org; dkim=pass (2048-bit key;\n\tunprotected) header.d=lists.infradead.org\n\theader.i=@lists.infradead.org header.b=\"gGo6WRvl\"; \n\tdkim=fail reason=\"signature verification failed\" (1024-bit key;\n\tunprotected) header.d=de-korte.org header.i=@de-korte.org\n\theader.b=\"APygEEGM\"; dkim-atps=neutral"],"Received":["from bombadil.infradead.org (bombadil.infradead.org\n\t[65.50.211.133])\n\t(using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256\n\tbits)) (No client certificate requested)\n\tby ozlabs.org (Postfix) with ESMTPS id 3xdWyK1Nyvz9sNV\n\tfor ;\n\tFri, 25 Aug 2017 03:49:27 +1000 (AEST)","from localhost ([127.0.0.1] helo=bombadil.infradead.org)\n\tby bombadil.infradead.org with esmtp (Exim 4.87 #1 (Red Hat Linux))\n\tid 1dkwFg-0007e6-Bc; Thu, 24 Aug 2017 17:49:08 +0000","from de-korte.org ([2001:470:7ad2::10] helo=mail.de-korte.org)\n\tby bombadil.infradead.org with esmtps (Exim 4.87 #1 (Red Hat Linux))\n\tid 1dkwFH-0007c2-ED\n\tfor lede-dev@lists.infradead.org; Thu, 24 Aug 2017 17:48:45 +0000","from localhost (localhost [IPv6:::1])\n\tby mail.de-korte.org (Postfix) with ESMTP id 8993941127\n\tfor ;\n\tThu, 24 Aug 2017 19:48:21 +0200 (CEST)","from mail (localhost [IPv6:::1])\n\t(using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128\n\tbits)) (No client certificate requested)\n\tby mail.de-korte.org (Postfix) with ESMTPSA\n\tfor ;\n\tThu, 24 Aug 2017 19:48:21 +0200 (CEST)","from [2001:470:7ad2:feed::100] ([2001:470:7ad2:feed::100]) by\n\tmail.de-korte.org (Horde Framework) with HTTPS;\n\tThu, 24 Aug 2017 19:48:21 +0200"],"DKIM-Signature":["v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed;\n\td=lists.infradead.org; s=bombadil.20170209; h=Sender:Content-Type:\n\tContent-Transfer-Encoding:List-Subscribe:List-Help:List-Post:List-Archive:\n\tList-Unsubscribe:List-Id:Subject:MIME-Version:In-Reply-To:References:To:From:\n\tMessage-ID:Date:Reply-To:Cc:Content-ID:Content-Description:Resent-Date:\n\tResent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner;\n\tbh=5N2/oj+fggDNgyXFAj9kem5+Gp3lgmg4aFTaWaox7ZY=;\n\tb=gGo6WRvl3xJpTH/2XuMKpMJvV\n\tUthcSVkqfMNXR7CYpgVgENtDBXmtBNFcpx2NrBokwlW0ihWHbePYt48i7d80qbrHVvY7WQe1qYqFW\n\tgxlmr0Yk4OzL5rc6TUR2qNE6q6LFZ+FhA++W3HQ2+DMBIp80wouKhxPTMS/2IOHRPuDmRoXm5UR+w\n\tFcAKxyHiPRgaEYWXiCzv8b3No83rZ3Y4r0P0yaOYOkhWLhICR64eeS3Bp+yQFVng+Yrrr2heSD3Co\n\tjr9jUlA2W04dJHpBaRcrtJx8yp1ErNNFY2i1O2fEiMLMCuoHnbxSDroVCki7zNWh+yojFi1WCXFUi\n\tdPCb67IYA==;","v=1; a=rsa-sha256; c=relaxed/simple; d=de-korte.org; h=\n\tcontent-disposition:mime-version:content-type:content-type\n\t:accept-language:user-agent:in-reply-to:references:subject\n\t:subject:from:from:message-id:date:date:received:received; s=\n\tdkim; t=1503596901; x=1505411302; bh=DuZgGcCh7xUpQT438/T1pOrJSTj\n\tOcyN2/1Yg6eatzFQ=; b=APygEEGMLTP5ukLObe5HhvCpY2icMBerI5lWzWuWt80\n\t0zEMCziR55eZGL7F5PQXVU+e7lXfN+wys4SulfA+4136ULFyrMef7r3xkDzunG/G\n\t2/0JBT/hypxdHT5zyXZgzvLQ5CZrGPTOUtRcblPSiiu/zxjkJy7beX8LXwiZ19iQ\n\t="],"X-Virus-Scanned":"amavisd-new at de-korte.org","Date":"Thu, 24 Aug 2017 19:48:21 +0200","Message-ID":"<20170824194821.Horde.P_Eb5kkiY9fHIAFT9W5Q49Q@mail.de-korte.org>","From":"Arjen de Korte ","To":"lede-dev@lists.infradead.org","References":"<1503396068-26205-1-git-send-email-kevin@darbyshire-bryant.me.uk>\n\t<1503396068-26205-2-git-send-email-kevin@darbyshire-bryant.me.uk>\n\t\n\t<624b2c47-e640-83d7-32f9-76d0ac92cf5d@darbyshire-bryant.me.uk>\n\t<20170823192510.Horde.YaeFLmHyOZxO8XJXM7a8X-4@mail.de-korte.org>\n\t\n\t<20170824105657.Horde.OXF0e37UE7Pz5pS5PXOmT6j@mail.de-korte.org>","In-Reply-To":"<20170824105657.Horde.OXF0e37UE7Pz5pS5PXOmT6j@mail.de-korte.org>","User-Agent":"Horde Application Framework 5","Accept-Language":"de,en,nl","MIME-Version":"1.0","Content-Disposition":"inline","X-CRM114-Version":"20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 ","X-CRM114-CacheID":"sfid-20170824_104843_641584_97345A4D ","X-CRM114-Status":"UNSURE ( 5.40 )","X-CRM114-Notice":"Please train this message.","X-Spam-Score":"-2.0 (--)","X-Spam-Report":"SpamAssassin version 3.4.1 on bombadil.infradead.org summary:\n\tContent analysis details: (-2.0 points)\n\tpts rule name description\n\t---- ----------------------\n\t--------------------------------------------------\n\t-0.0 SPF_PASS SPF: sender matches SPF record\n\t-0.0 RP_MATCHES_RCVD Envelope sender domain matches handover relay\n\tdomain\n\t-0.0 SPF_HELO_PASS SPF: HELO matches SPF record\n\t-1.9 BAYES_00 BODY: Bayes spam probability is 0 to 1%\n\t[score: 0.0000]\n\t-0.1 DKIM_VALID Message has at least one valid DKIM or DK signature\n\t0.1 DKIM_SIGNED Message has a DKIM or DK signature,\n\tnot necessarily valid\n\t-0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from\n\tauthor's domain","Subject":"Re: [LEDE-DEV] [PATCH 2/2] toolchain: gcc: drop MIPS patch","X-BeenThere":"lede-dev@lists.infradead.org","X-Mailman-Version":"2.1.21","Precedence":"list","List-Id":"","List-Unsubscribe":",\n\t","List-Archive":"","List-Post":"","List-Help":"","List-Subscribe":",\n\t","Content-Transfer-Encoding":"7bit","Content-Type":"text/plain; charset=\"us-ascii\"; Format=\"flowed\"; DelSp=\"Yes\"","Sender":"\"Lede-dev\" ","Errors-To":"lede-dev-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org"}},{"id":1756644,"web_url":"http://patchwork.ozlabs.org/comment/1756644/","msgid":"<20170824201355.Horde.IJVXh_WFJiWXtO4sr3Xm8i-@mail.de-korte.org>","list_archive_url":null,"date":"2017-08-24T18:13:55","subject":"Re: [LEDE-DEV] [PATCH 2/2] toolchain: gcc: drop MIPS patch","submitter":{"id":69024,"url":"http://patchwork.ozlabs.org/api/people/69024/","name":"Arjen de Korte","email":"arjen+lede@de-korte.org"},"content":"Citeren Arjen de Korte :\n\n> Citeren Arjen de Korte :\n>\n>> Citeren Kevin Darbyshire-Bryant :\n>>\n>>> On 23/08/17 18:25, Arjen de Korte wrote:\n>>>\n>>>> While removing the MIPS patch fixes dropbear when using gcc 7.1.0 \n>>>> and '-Os', uhttpd goes tits up with a segfault in liblua. With \n>>>> '-O2' it's fine for both, so I'll probably stick with that for now.\n>>>\n>>> What about with gcc 7.2.0?\n>>\n>> Good question. I'll try that later today.\n>\n> No joy, uhttpd still fails to start with exactly the same \n> errormessage as with gcc 7.1.0:\n>\n> Thu Aug 24 19:44:23 2017 kern.info kernel: [ 49.227713]\n> Thu Aug 24 19:44:23 2017 kern.info kernel: [ 49.227713] \n> do_page_fault(): sending SIGSEGV to uhttpd for invalid read access \n> from 778c50d8\n> Thu Aug 24 19:44:23 2017 kern.info kernel: [ 49.227734] epc = \n> 778cc277 in liblua.so.5.1.5[778c6000+2e000]\n> Thu Aug 24 19:44:23 2017 kern.info kernel: [ 49.230672] ra = \n> 778cc271 in liblua.so.5.1.5[778c6000+2e000]\n> Thu Aug 24 19:44:23 2017 kern.info kernel: [ 49.233703]\n> Thu Aug 24 19:44:23 2017 daemon.info procd: Instance \n> uhttpd::instance1 s in a crash loop 6 crashes, 0 seconds since last \n> crash\n\nAnd like with gcc 7.1.0, all is well when compiled with '-O2' (OK) \ninstead of '-Os' (not OK).","headers":{"Return-Path":"","X-Original-To":"incoming@patchwork.ozlabs.org","Delivered-To":"patchwork-incoming@bilbo.ozlabs.org","Authentication-Results":["ozlabs.org; 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