From owner-freebsd-stable@freebsd.org Mon Jan 2 13:33:30 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 6C4DEC9BE16 for ; Mon, 2 Jan 2017 13:33:30 +0000 (UTC) (envelope-from aryeh.friedman@gmail.com) Received: from mail-io0-x22d.google.com (mail-io0-x22d.google.com [IPv6:2607:f8b0:4001:c06::22d]) (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 399C71562 for ; Mon, 2 Jan 2017 13:33:30 +0000 (UTC) (envelope-from aryeh.friedman@gmail.com) Received: by mail-io0-x22d.google.com with SMTP id p42so412565550ioo.1 for ; Mon, 02 Jan 2017 05:33:30 -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=qV9IjL7/bachFiOYty9vwg5WuJPaXVgfjAnr3azYSBA=; b=sLicrQl08WisEz5T/44xGq/XilDCf0AFT4si/c8uLaQvytOySVFOggNwFxLXa49urL 8s3R/pF+1YxB9pvVWc+e7fRZpBn86O8z2ErXcANd44jwgWFWFZzVBQhmMXr1+vKTWfNe PbYuL+s6hUR4MU3mr8E+jyfZtHrNYKfETXKfOT+nno3nFlWYN9uOdQYXZZ8fKMl9dBSu dgdrIm9fACoWnJiJ8FeJgIxyqxRwB+FHrAGr04ogSebHqSbTsc9Z3C9W3tP0niv62pWY WkHfSL9Ve3fQg7zsDnMX1hmOs4mKGyJhrz+UBK2DbNjRJMBPOlDpaiwrKaSfv+tAh/nj N55g== 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=qV9IjL7/bachFiOYty9vwg5WuJPaXVgfjAnr3azYSBA=; b=tSvB5dZjhxDfINhehEqgifdZjc/SKLRfYhltpDoIydJrqTlJ8luv5oIF76ZmfuTrvk B/x5UMReWqv3dHvEdevM2O7y0Tn8J4JTWA6f9uRQcs47SxRC6si9FelvRF2bBueU4eQ+ imY40bk/5sS6zlOtCxwZqyZOi/a30LsUw3miznUy/7le7iUH0d+MdCzDcW9rWndrPbJr M29pHMKEJtC2b3zDamCeS63UcOJOyDYgg1NHC/+usKIqoQEn/bjXc754Mjh2hI3Zly/a cqG0iP4NFBscgYfXqsg4PdeOj/uov2xWK8dMnQjn/Hiy8DBquzMtCWfwKwRVgcMny9K2 rpvQ== X-Gm-Message-State: AIkVDXITghFJTg607l/feThx0uolv9ELhFrPikb2iDIus2RqXyfHzVqWIhkpwnc7K5NQToY/h6q+duXWuPmikg== X-Received: by 10.107.172.134 with SMTP id v128mr51550958ioe.49.1483364009693; Mon, 02 Jan 2017 05:33:29 -0800 (PST) MIME-Version: 1.0 Received: by 10.36.57.212 with HTTP; Mon, 2 Jan 2017 05:33:29 -0800 (PST) In-Reply-To: <20170102125734.GB6912@dft-labs.eu> References: <20170102123630.GA6912@dft-labs.eu> <20170102125734.GB6912@dft-labs.eu> From: Aryeh Friedman Date: Mon, 2 Jan 2017 08:33:29 -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 13:33:30 -0000 On Mon, Jan 2, 2017 at 7:57 AM, Mateusz Guzik wrote: > On Mon, Jan 02, 2017 at 07:48:22AM -0500, Aryeh Friedman wrote: > > 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. > > > > I definitely don't run into anything of the sort and the problem > statement is quote vague. > > However, if the problem is indeed reproducible, the minimum you can do > is find the first revision where it started appearing and that would > definitely help with an investigation. > > Any advice on how to do that since I update daily I can tell you when it started (the day) but not the actual revision ID. -- Aryeh M. Friedman, Lead Developer, http://www.PetiteCloud.org