From owner-freebsd-stable@freebsd.org Mon Jan 2 12:48:23 2017 Return-Path: Delivered-To: freebsd-stable@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 8006AC9AD7F for ; Mon, 2 Jan 2017 12:48:23 +0000 (UTC) (envelope-from aryeh.friedman@gmail.com) Received: from mail-io0-x22f.google.com (mail-io0-x22f.google.com [IPv6:2607:f8b0:4001:c06::22f]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 48DA71D8D for ; Mon, 2 Jan 2017 12:48:23 +0000 (UTC) (envelope-from aryeh.friedman@gmail.com) Received: by mail-io0-x22f.google.com with SMTP id d9so411539953ioe.0 for ; Mon, 02 Jan 2017 04:48:23 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:in-reply-to:references:from:date:message-id:subject:to :cc; bh=hLn4GV5j5dmEoR6kARity3eCcIvdxRGzJuIxz/y5X7o=; b=WPCbVKZxp1rJFbg1jYfC3yw8dSuueYHk9Rdk48ZtXDFh5EOqclkIrb42G9aVvBfDu6 6G4rycHLy80sKRtZsr9lvHZeUZ2cB9WBi4EbxEOctzSN318Gt+dsyU5NGoqwnnz97VTD voT6S0XefIHBIC6pnw/BPcB4eTMLAj0C50mPfXwhPsNRea4kVriX46rNM+tlhWYKhQR3 eIDsTAA/tfeZP2Mk9K8E+ztjXurkdF3d9KHxr1CSOOLpszrU2WsulKUrYSotY+2OjLqp 4Ob2RavqkvrzSSMooCdLGPbLylUpRaeM8bDpKN9K/IKQpZu0XIxm0yWUCl499V7hRxkY gFIw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:in-reply-to:references:from:date :message-id:subject:to:cc; bh=hLn4GV5j5dmEoR6kARity3eCcIvdxRGzJuIxz/y5X7o=; b=WjXpTOfVPJecPU9iT1LSBj4GHYBdu4gaJHzUv/FoDnbcvXkgSnmCGRQMnI65a1CQcI OgK33Uw/HnU+O6V4qB5kBJwErxDO4nLErPzAx1gRtxkBSfuUMBCg89X+u4Tg+OI1Em4X 7cURlqEIP5934Cnhq+48/teTIq1D6D9GE8IWGkZiBKz72kEEAOJlyHfDIdV8ic9FLRMS IF9NyYrI0kwr+i2vR+sqNMeD+qCK5LJRMuu7FTSdfm+2ZkucgXunc8MKiRKTnD6MHB+B sv7Av0ojnMnF6j+sOKD0tTfvMcbCnCZgdIOIhbknJ3nFVLK8tGBaEhfHV/JMMNybPrZw r4nA== X-Gm-Message-State: AIkVDXIoXc5tfbPhWF26cl3Yd+fjCIgvedwZsFsPb/E5Q9FmLEyYW1LFVC9s+wqO8dog7lj1SmSEmJHnnWxgDw== X-Received: by 10.107.172.134 with SMTP id v128mr51400978ioe.49.1483361302576; Mon, 02 Jan 2017 04:48:22 -0800 (PST) MIME-Version: 1.0 Received: by 10.36.57.212 with HTTP; Mon, 2 Jan 2017 04:48:22 -0800 (PST) In-Reply-To: <20170102123630.GA6912@dft-labs.eu> References: <20170102123630.GA6912@dft-labs.eu> From: Aryeh Friedman Date: Mon, 2 Jan 2017 07:48:22 -0500 Message-ID: Subject: Re: make kernel ctfmerge freeze on 11-STABLE To: Mateusz Guzik Cc: FreeBSD Stable List Content-Type: text/plain; charset=UTF-8 X-Content-Filtered-By: Mailman/MimeDel 2.1.23 X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 02 Jan 2017 12:48:23 -0000 On Mon, Jan 2, 2017 at 7:36 AM, Mateusz Guzik wrote: > On Mon, Jan 02, 2017 at 06:57:48AM -0500, Aryeh Friedman wrote: > > FreeBSD lilith 11.0-STABLE FreeBSD 11.0-STABLE #7 r311003: Sun Jan 1 > > 02:45:34 EST 2017 root@lilith:/usr/obj/usr/src/sys/GENERIC amd64 > > > > > > -------------------------------------------------------------- > > >>> stage 3.1: building everything > > -------------------------------------------------------------- > > cd /usr/obj/usr/src/sys/GENERIC; COMPILER_VERSION=30901 > > COMPILER_TYPE=clang COMPILER_FREEBSD_VERSION=1100503 > > MAKEOBJDIRPREFIX=/usr/obj MACHINE_ARCH=amd64 MACHINE=amd64 CPUTYPE= > > GROFF_BIN_PATH=/usr/obj/usr/src/tmp/legacy/usr/bin > > GROFF_FONT_PATH=/usr/obj/usr/src/tmp/legacy/usr/share/groff_font > > GROFF_TMAC_PATH=/usr/obj/usr/src/tmp/legacy/usr/share/tmac CC="cc > -target > > x86_64-unknown-freebsd11.0 --sysroot=/usr/obj/usr/src/tmp > > -B/usr/obj/usr/src/tmp/usr/bin" CXX="c++ -target > > x86_64-unknown-freebsd11.0 --sysroot=/usr/obj/usr/src/tmp > > -B/usr/obj/usr/src/tmp/usr/bin" CPP="cpp -target > > x86_64-unknown-freebsd11.0 --sysroot=/usr/obj/usr/src/tmp > > -B/usr/obj/usr/src/tmp/usr/bin" AS="as" AR="ar" LD="ld" NM=nm > > OBJDUMP=objdump OBJCOPY="objcopy" RANLIB=ranlib STRINGS= SIZE="size" > > INSTALL="sh /usr/src/tools/install.sh" > > PATH=/usr/obj/usr/src/tmp/legacy/usr/sbin:/usr/obj/usr/ > src/tmp/legacy/usr/bin:/usr/obj/usr/src/tmp/legacy/bin:/ > usr/obj/usr/src/tmp/usr/sbin:/usr/obj/usr/src/tmp/usr/bin:/ > sbin:/bin:/usr/sbin:/usr/bin > > make -m /usr/src/share/mk KERNEL=kernel all -DNO_MODULES_OBJ > > linking kernel.full > > ctfmerge -L VERSION -g -o kernel.full ... > > > > How reproducible is the crash? What previous kernel was known to work? > Can you narrow it down to a particular revision, preferably with kernel > debugging enabled? (see the end of the mail) > It first appeared a few days ago (forget what revision) then disappeared the day after and reappeared yesterday. It is 100% reproducible (i.e. clearing out /usr/obj and doing a make kernel in either single or multiuser mode both cause it). Turing on debugging would be hard but perhaps I should slightly qualify "freeze": make freezes but the rest of the system is responsive and killing make leaves a zombie ctfmerge. If I still need kernel debugging based on the above I will do it but looking for an easier explanation first. > > -- Aryeh M. Friedman, Lead Developer, http://www.PetiteCloud.org