From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1607CC433EF for ; Mon, 1 Nov 2021 13:48:40 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id E0CD861078 for ; Mon, 1 Nov 2021 13:48:39 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231366AbhKANvM (ORCPT ); Mon, 1 Nov 2021 09:51:12 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.133.124]:30516 "EHLO us-smtp-delivery-124.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231981AbhKANvM (ORCPT ); Mon, 1 Nov 2021 09:51:12 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1635774518; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=fUvxJ6sHDgJdM4f4VUnretPE62bc9g1QjZAGZwCNrvA=; b=Zru+uhdgc/0iG1XcR4ixhq/z1AxoliwJO4QF0ImjIqJ0wTZ1llQ8shcJ0cP97FpNZEDrKO 0KL66Fahmnu8lC+awUR6qeStnddxTOxaYjVlQr+pRf/IUkGiZMN4uub9k3Mi7CxaiMk5Ns hP++aU27UPN/IDNiR/qB83AON65A4NQ= Received: from mail-qv1-f71.google.com (mail-qv1-f71.google.com [209.85.219.71]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-104-pPXih_N5MqWYgSgex1yyyw-1; Mon, 01 Nov 2021 09:48:37 -0400 X-MC-Unique: pPXih_N5MqWYgSgex1yyyw-1 Received: by mail-qv1-f71.google.com with SMTP id o3-20020a0562140e4300b0039a8ccca8efso9018850qvc.7 for ; Mon, 01 Nov 2021 06:48:37 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:subject:to:cc:references:from:message-id:date :user-agent:mime-version:in-reply-to:content-language :content-transfer-encoding; bh=fUvxJ6sHDgJdM4f4VUnretPE62bc9g1QjZAGZwCNrvA=; b=XDCyjGjTLsL75btSgf/cRrqvgjn/s0MoZ9bwh+uGDswPSZEiBb3TNOMQ7hXRLfQLzU 5mgw4NYKy8Y7lRVcrmp8UZe5dodVZEOuDXsz53RkOGT1Y9LSrYXfX/FU6md1ByFH6VGs Rpt2Nt//O157nHjVXb4EiiuYPzxNn4Q1GWMCZB88BdY6yvI0sepg67CVaUL5yMY8sv/M xPzMEythbK7YgzMKQy5VJ+vwokhZRVYj+xjoiJCdVbOwd3KjhMIMSMw4iyyc7RRXfjcg VJUnNfxbeInskmA2hf1W2xJLe9f+1qrIQCvtQaVacnr55bjxq+3T1wzBFCHKrKD2IFpS XdbQ== X-Gm-Message-State: AOAM5324GviEIlroP5mdFScQXLTvGQHfJMNlRjxoRXks1kbnMEwMLy/i U1MgedSFpdQosdIWqEBg3KaAwXX168WNFyNsbJx1ai5xTio4Lge6oLSWo7PJKsNBDi3+NGAjf1O 0JGPMtWJPFXtCHeZX4NPA6QxEtQ== X-Received: by 2002:a05:622a:104a:: with SMTP id f10mr14545415qte.152.1635774517021; Mon, 01 Nov 2021 06:48:37 -0700 (PDT) X-Google-Smtp-Source: ABdhPJyfUmyxsnDKK0JrXAQRngNQ9XzatuIuwKj9TJR+5paLb5+bXTrgMTuIngwjKknwuhu1LGx+PA== X-Received: by 2002:a05:622a:104a:: with SMTP id f10mr14545389qte.152.1635774516819; Mon, 01 Nov 2021 06:48:36 -0700 (PDT) Received: from [192.168.1.9] (pool-68-163-101-245.bstnma.fios.verizon.net. [68.163.101.245]) by smtp.gmail.com with ESMTPSA id f66sm5529271qkj.76.2021.11.01.06.48.35 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 01 Nov 2021 06:48:36 -0700 (PDT) Subject: Re: ppc64le STRICT_MODULE_RWX and livepatch apply_relocate_add() crashes To: Russell Currey , live-patching@vger.kernel.org, linuxppc-dev@lists.ozlabs.org Cc: Josh Poimboeuf , Peter Zijlstra , Jessica Yu , Jordan Niethe , Christophe Leroy References: <7ee0c84650617e6307b29674dd0a12c7258417cf.camel@russell.cc> From: Joe Lawrence Message-ID: Date: Mon, 1 Nov 2021 09:48:35 -0400 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.10.1 MIME-Version: 1.0 In-Reply-To: <7ee0c84650617e6307b29674dd0a12c7258417cf.camel@russell.cc> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: live-patching@vger.kernel.org On 11/1/21 5:20 AM, Russell Currey wrote: > I'm looking into this now, will update when there's progress. I > personally wasn't aware but Jordan flagged this as an issue back in > August [0]. Are the selftests in the klp-convert tree sufficient for > testing? I'm not especially familiar with livepatching & haven't used > the userspace tools. > Hi Russell, thanks for taking a look. Testing with that klp-convert tree is probably the quickest and easiest way to verify the late relocations. I'm happy to setup and test additional tools (ie, kpatch-build) with any potential changes as I know they take longer to config and run. Thanks, -- Joe