Date: Mon, 2 Jan 2017 08:33:29 -0500 From: Aryeh Friedman <aryeh.friedman@gmail.com> To: Mateusz Guzik <mjguzik@gmail.com> Cc: FreeBSD Stable List <freebsd-stable@freebsd.org> Subject: Re: make kernel ctfmerge freeze on 11-STABLE Message-ID: <CAGBxaX=nv=oX2PWZ483ikZRdaMKu7ffV90Kc4-D9-o213WSWbQ@mail.gmail.com> In-Reply-To: <20170102125734.GB6912@dft-labs.eu> References: <CAGBxaXk-CL7uqUrxeqLico5w_YSDHxPfEyv64ROxw9rDqjDcYw@mail.gmail.com> <20170102123630.GA6912@dft-labs.eu> <CAGBxaX=e2afqr2JfN_OTyJ=FSJnEcKHDL50PTKmL_PSWYnNiyg@mail.gmail.com> <20170102125734.GB6912@dft-labs.eu>
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On Mon, Jan 2, 2017 at 7:57 AM, Mateusz Guzik <mjguzik@gmail.com> 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 <mjguzik@gmail.com> 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 ... > > > > <freezes> > > > > > > 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
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