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Thu, 18 Jun 2020 11:53:33 +0000 (UTC) Date: Thu, 18 Jun 2020 13:53:31 +0200 From: Cornelia Huck To: Alex =?UTF-8?B?QmVubsOpZQ==?= <1883560@bugs.launchpad.net> Subject: Re: [Bug 1883560] [NEW] mips linux-user builds occasionly crash randomly only to be fixed by a full clean re-build Message-ID: <20200618135331.7ec861e9.cohuck@redhat.com> In-Reply-To: <159223432851.7281.13140123017230519248.malonedeb@gac.canonical.com> References: <159223432851.7281.13140123017230519248.malonedeb@gac.canonical.com> Organization: Red Hat GmbH MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.84 on 10.5.11.22 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=cohuck@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Received-SPF: pass client-ip=205.139.110.61; envelope-from=cohuck@redhat.com; helo=us-smtp-delivery-1.mimecast.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/06/18 01:32:18 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] [fuzzy] X-Spam_score_int: -30 X-Spam_score: -3.1 X-Spam_bar: --- X-Spam_report: (-3.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-1, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H3=-0.01, RCVD_IN_MSPIKE_WL=-0.01, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=_AUTOLEARN X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: qemu-devel@nongnu.org Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" On Mon, 15 Jun 2020 15:18:48 -0000 Alex Benn=C3=A9e <1883560@bugs.launchpad.net> wrote: > Public bug reported: >=20 > >From time to time I find check-tcg crashes with a one of the MIPS =20 > binaries. The last time it crashed was running the test: >=20 > ./mips64el-linux-user/qemu-mips64el ./tests/tcg/mips64el-linux- > user/threadcount >=20 > Inevitably after some time noodling around wondering what could be > causing this weird behaviour I wonder if it is a build issue. I wipe all > the mips* build directories, re-run configure and re-build and voila > problem goes away. >=20 > It seems there must be some sort of build artefact which isn't being > properly re-generated on a build update which causes weird problems. > Additional data point if I: >=20 > rm -rf mips64el-linux-user > ../../configure > make >=20 > then I see failures in mip32 builds - eg: >=20 > GEN mipsn32el-linux-user/config-target.h > In file included from /home/alex/lsrc/qemu.git/linux-user/syscall_defs.= h:10, > from /home/alex/lsrc/qemu.git/linux-user/qemu.h:16, > from /home/alex/lsrc/qemu.git/linux-user/linuxload.c:5= : > /home/alex/lsrc/qemu.git/linux-user/mips64/syscall_nr.h:1: error: unter= minated #ifndef > #ifndef LINUX_USER_MIPS64_SYSCALL_NR_H >=20 > make[1]: *** [/home/alex/lsrc/qemu.git/rules.mak:69: linux-user/linuxlo= ad.o] Error 1 > make[1]: *** Waiting for unfinished jobs.... >=20 > which implies there is a cross dependency between different targets > somewhere. If I executed: >=20 > rm -rf mips* >=20 > before re-configuring and re-building then everything works again. >=20 > ** Affects: qemu > Importance: Undecided > Status: New >=20 >=20 > ** Tags: build linux-user mips >=20 FWIW, this does not seem to be a mips-only issue: I'm seeing the threadcount test fail with s390x-linux-user as well, and it also goes away (only) if I purge the build directory, re-configure, and re-build.