From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:59417) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Ws6Pr-0000pv-FC for qemu-devel@nongnu.org; Wed, 04 Jun 2014 04:19:30 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1Ws6Pk-0005mD-Fz for qemu-devel@nongnu.org; Wed, 04 Jun 2014 04:19:23 -0400 Received: from mail-wi0-x235.google.com ([2a00:1450:400c:c05::235]:45336) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Ws6Pk-0005kV-9a for qemu-devel@nongnu.org; Wed, 04 Jun 2014 04:19:16 -0400 Received: by mail-wi0-f181.google.com with SMTP id n15so910747wiw.8 for ; Wed, 04 Jun 2014 01:19:15 -0700 (PDT) Date: Wed, 4 Jun 2014 10:19:13 +0200 From: Stefan Hajnoczi Message-ID: <20140604081913.GF21259@stefanha-thinkpad.redhat.com> References: <20140528125211.29732.51513.malonedeb@wampee.canonical.com> <20140528125211.29732.51513.malonedeb@wampee.canonical.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable In-Reply-To: <20140528125211.29732.51513.malonedeb@wampee.canonical.com> Subject: Re: [Qemu-devel] [Bug 1324112] [NEW] qemu parallel building error on libcacard.la List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Bug 1324112 <1324112@bugs.launchpad.net> Cc: qemu-devel@nongnu.org On Wed, May 28, 2014 at 12:52:10PM -0000, tal zilcer wrote: > im building qemu with a large make -j value(9). > sometimes the build fails because of an error: > libtool: link: ar cru .libs/libcacard.a stubs/arch-query-cpu-def.o stubs= /clock-warp.o stubs/cpu-get-clock.o stubs/cpu-get-icount.o stubs/dump.o stu= bs/fdset-add-fd.o stubs/fdset-find-fd.o stubs/fdset-get-fd.o stubs/fdset-re= move-fd.o stubs/gdbstub.o stubs/get-fd.o stubs/get-vm-name.o stubs/iothread= -lock.o stubs/migr-blocker.o stubs/mon-is-qmp.o stubs/mon-printf.o stubs/mo= n-print-filename.o stubs/mon-protocol-event.o stubs/mon-set-error.o stubs/p= ci-drive-hot-add.o stubs/qtest.o stubs/reset.o stubs/runstate-check.o stubs= /set-fd-handler.o stubs/slirp.o stubs/sysbus.o stubs/uuid.o stubs/vm-stop.o= stubs/vmstate.o stubs/cpus.o stubs/kvm.o libcacard/cac.o libcacard/event.o= libcacard/vcard.o libcacard/vreader.o libcacard/vcard_emul_nss.o libcacard= /vcard_emul_type.o libcacard/card_7816.o libcacard/vcardt.o util/osdep.o ut= il/cutils.o util/qemu-timer-common.o util/error.o util/qemu-error.o util/os= lib-posix.o util/qemu-thread-posix.o trace/generated-events.o trace/default= =2Eo trace/control.o trace/generated-tracers.o > ar: trace/generated-events.o: No such file or directory > make[2]: *** [libcacard.la] Error 1 >=20 >=20 > i see the build of generated-events.o in the log before the ar command. > because of the -j it was probably not completed yet. > the generated-events.o build command: > /usr/bin/gcc -I/home/npsdb/qemu/qemu/tcg -I/home/npsdb/qemu/qemu/tcg/i386= -I/home/npsdb/qemu/qemu/linux-headers -I/home/npsdb/qemu/build/linux_x86_6= 4/linux-headers -I. -I/home/npsdb/qemu/qemu -I/home/npsdb/jenkins/qemu/qemu= /include -I/home/npsdb/qemu/qemu/libcacard -Itrace -Itrace -fPIE -DPIE -m64= -D_GNU_SOURCE -D_FILE_OFFSET_BITS=3D64 -D_LARGEFILE_SOURCE -Wstrict-protot= ypes -Wredundant-decls -Wall -Wundef -Wwrite-strings -Wmissing-prototypes -= fno-strict-aliasing -fno-common -Wendif-labels -Wmissing-include-dirs -Wem= pty-body -Wnested-externs -Wformat-security -Wformat-y2k -Winit-self -Wigno= red-qualifiers -Wold-style-declaration -Wold-style-definition -Wtype-limits= -fstack-protector-all -I/usr/include/libpng12 -I/usr/include/nss3 -I= /usr/include/nspr4 -pthread -I/usr/include/glib-2.0 -I/usr/lib64/glib-2.0= /include -I/usr/include/pixman-1 -I/home/npsdb/qemu/qemu/tests -I qga/= qapi-generated -MMD -MP -MT trace/generated-events.o -MF trace/generated-ev= ents.d -O2 -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=3D2 -pthread -I/usr/include/= glib-2.0 -I/usr/lib64/glib-2.0/include -g -c -o trace/generated-events.= o trace/generated-events.c >=20 >=20 > must be a race condition in the makefile because of a missing dependency. > i tried to find it but it was a little bit complicated to me. Which QEMU version are you building? In qemu.git/master I can see the dependency on trace/* in libcacard/Makefile. Stefan