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=-8.6 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED 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 4E53BC388F9 for ; Wed, 21 Oct 2020 15:53:31 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id BB0812177B for ; Wed, 21 Oct 2020 15:53:28 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="fJ6Pk3yJ" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2444180AbgJUPx2 (ORCPT ); Wed, 21 Oct 2020 11:53:28 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:50008 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2444179AbgJUPx2 (ORCPT ); Wed, 21 Oct 2020 11:53:28 -0400 Received: from mail-yb1-xb44.google.com (mail-yb1-xb44.google.com [IPv6:2607:f8b0:4864:20::b44]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C769FC0613CE; Wed, 21 Oct 2020 08:53:27 -0700 (PDT) Received: by mail-yb1-xb44.google.com with SMTP id h196so2193744ybg.4; Wed, 21 Oct 2020 08:53:27 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=gBAHnp2G0WCm+kthplQjXkMa2YX4/qHuFgOj64TAh7s=; b=fJ6Pk3yJqb7jLkjmtP91AnXIWzGZfLuhd55prGbX5Enl7PFKEztbO/LKblBlBdduVQ u3Alqlyttf3e1Dj+mDdUTR4bSi0THIqoIPMC7bKFjzIF2XnLrfIC3pAoinDN66kAL1Zn kOLp3zAPvwoPAmC0pG2K43pOFJFClfMXPjD2IEHAxjkz6jSRDp4eqRqp0LcGRCLWgYqj Nh0gd6cMPiuv+EW9S+hxgRQ+bTWtQ2H6oJmrtxlmDmWuKnxxO9zE30rup/ybrmSCBOQt 01MGTKKD2bnE08D6+kFA5SRLtbThDLcj7bj0GeF2lT28Sc6IwnEhEZHH05Txk5DvvnAk ZedQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=gBAHnp2G0WCm+kthplQjXkMa2YX4/qHuFgOj64TAh7s=; b=HVBupkFIiwK5xwpfIAXUNbGmVke97ztz4f3GN/gTAsSdogrMXP8gTiLr2DNZdzwdZI /OYLKLaGx1fqcEqIEh8DQJH9EcL+41Ruqp5fREOeZ7kuTWrDKMW52Gr5zHcWbCftZjGE ZiR38cTG2JaqBi0Mwn3eAXVPPtyVXQ9JawlMfeJFhUBEdsGpRA54rVJ4R3bDocFy29rq W3djFpspwrdRPDSECyyDnMhztJmKwJDNfa7XdFU6SV9SoXR6b0HQ8iFKVYyQLr8TQZJ8 ARgt3SDGRUmQc+u3HXIiHrejDSefSukAArT3GDDAyhbqGUyXYp/jm5pyuWdKQHbJzlem m2xA== X-Gm-Message-State: AOAM530rY7q46xvM3HrnjrlcWgq5W5aB3RFEnephSHfWnYncijrzArso I/5NXTazmZccAusuNmGGd77PDzkiHEqmQx0hciV++3c6 X-Google-Smtp-Source: ABdhPJw8jhcGciDEZkIoGXYCThFVDJl+6j/xV8fifw9wqFu+TuCPPZpUn3RAhEEpMOb8oISWPNYmquMvCBZnlKgcndg= X-Received: by 2002:a25:25c2:: with SMTP id l185mr5639803ybl.230.1603295607121; Wed, 21 Oct 2020 08:53:27 -0700 (PDT) MIME-Version: 1.0 References: <82b757bb-1f49-ab02-2f4b-89577d56fec9@kernel.org> <20201020122015.GH2294271@kernel.org> <20201021112900.GN2342001@kernel.org> In-Reply-To: <20201021112900.GN2342001@kernel.org> From: Andrii Nakryiko Date: Wed, 21 Oct 2020 08:53:16 -0700 Message-ID: Subject: Re: Segfault in pahole 1.18 when building kernel 5.9.1 for arm64 To: Arnaldo Carvalho de Melo Cc: Jiri Slaby , =?UTF-8?B?w4lyaWNvIFJvbGlt?= , dwarves@vger.kernel.org, open list , Arnaldo Carvalho de Melo , Hao Luo , Andrii Nakryiko Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: dwarves@vger.kernel.org On Wed, Oct 21, 2020 at 6:48 AM Arnaldo Carvalho de Melo wrote: > > Em Wed, Oct 21, 2020 at 08:22:40AM +0200, Jiri Slaby escreveu: > > On 20. 10. 20, 14:20, Arnaldo Carvalho de Melo wrote: > > > > Yeah, I observe the very same. I reported it at: > > > > https://bugzilla.suse.com/show_bug.cgi?id=1177921 > > > > Would it be possible to try with > > > https://git.kernel.org/pub/scm/devel/pahole/pahole.git/commit/?h=tmp.libbtf_encoder > > > ? > > > Yes, that branch fixes the crashes and the kernel build finishes. The > > zero-sized symbol error remains. > > > So what should distributions do now -- should we switch to a pahole snapshot > > for a while? > > That would do the trick, I just completed my testing and pushed to the > master branch on kernel.org and github, tests detailed at: > > https://git.kernel.org/pub/scm/devel/pahole/pahole.git/commit/?id=040fd7f585c9b9fcf4475d294b3f5ddf78405297 > > There are some minor bug reports I want to address but my ETA right now > is the end of this week to release v1.19. I've just sent a patch that skips zero-sized ELF symbols without a warning or error. > > - Arnaldo