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 X-Spam-Level: X-Spam-Status: No, score=-11.3 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING,SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id AEAB7C433E0 for ; Fri, 12 Feb 2021 23:53:20 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 7533364DCF for ; Fri, 12 Feb 2021 23:53:20 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231337AbhBLXxT (ORCPT ); Fri, 12 Feb 2021 18:53:19 -0500 Received: from us-smtp-delivery-124.mimecast.com ([63.128.21.124]:20799 "EHLO us-smtp-delivery-124.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229980AbhBLXxQ (ORCPT ); Fri, 12 Feb 2021 18:53:16 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1613173910; 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: in-reply-to:in-reply-to:references:references; bh=d9EOww0gRZcoT59lB4jZaAA8xsmsbTWpvHMYDAlGJbY=; b=CSpja1jh/tfqbvJqPGdCKEUCs7TdPj7cxu1f8ILYV4oRjA20AlPqsxFTlPXODD4z6R1+m+ NU0iMm9q9/fyxEI1t4cOecBV9K+F9OywuR40KCtFQzAmt52rUvUopKjm6LudAmMkwNSE8u wIQ9jeoOC1ifx1hzxWmMELtWdZqmOgM= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-528-fGk8qRpMOp22Bc9XePYfXw-1; Fri, 12 Feb 2021 18:51:48 -0500 X-MC-Unique: fGk8qRpMOp22Bc9XePYfXw-1 Received: from smtp.corp.redhat.com (int-mx06.intmail.prod.int.phx2.redhat.com [10.5.11.16]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 2E1F5192CC41; Fri, 12 Feb 2021 23:51:47 +0000 (UTC) Received: from treble (ovpn-120-169.rdu2.redhat.com [10.10.120.169]) by smtp.corp.redhat.com (Postfix) with ESMTPS id B54FC5C23D; Fri, 12 Feb 2021 23:51:46 +0000 (UTC) Date: Fri, 12 Feb 2021 17:51:45 -0600 From: Josh Poimboeuf To: Ken Moffat Cc: Greg KH , lkml Subject: Re: objtool segfault in 5.10 kernels with binutils-2.36.1 Message-ID: <20210212235145.t4jgnkyiztrbqlnp@treble> References: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: X-Scanned-By: MIMEDefang 2.79 on 10.5.11.16 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Feb 11, 2021 at 05:16:56PM +0000, Ken Moffat wrote: > Hi, > > in 5.10 kernels up to and including 5.10.15 when trying to build the > kernel for an x86_64 skylake using binutils-2.36.1, gcc-10.2 and > glibic-2.33 I get a segfault in objtool if the orc unwinder is > enabled. > > This has already been fixed in 5.11 by ''objtool: Fix seg fault with > Clang non-section symbols' > https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/patch/?id=44f6a7c0755d8dd453c70557e11687bb080a6f21 > > So can this be added to 5.10 stable, please ? > > Please CC me as I am no-longer subscribed. Hi Ken, I agree that needs to be backported (and my bad for not marking it as stable to begin with). Greg, this also came up in another thread, are you pulling that one in, or do you want me to send it to stable list? -- Josh