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[99.254.144.39]) by smtp.gmail.com with ESMTPSA id a7-20020a0ca987000000b0063f88855ef2sm519993qvb.101.2023.09.14.07.56.36 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 14 Sep 2023 07:56:36 -0700 (PDT) Date: Thu, 14 Sep 2023 10:56:32 -0400 From: Peter Xu To: Fabiano Rosas Cc: Stefan Hajnoczi , Juan Quintela , Leonardo Bras , qemu-devel@nongnu.org Subject: Re: QEMU migration-test CI intermittent failure Message-ID: References: <20230913192301.GA917052@fedora> <87r0n1kggo.fsf@suse.de> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <87r0n1kggo.fsf@suse.de> Received-SPF: pass client-ip=170.10.133.124; envelope-from=peterx@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, 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=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org On Wed, Sep 13, 2023 at 04:42:31PM -0300, Fabiano Rosas wrote: > Stefan Hajnoczi writes: > > > Hi, > > The following intermittent failure occurred in the CI and I have filed > > an Issue for it: > > https://gitlab.com/qemu-project/qemu/-/issues/1886 > > > > Output: > > > > >>> QTEST_QEMU_IMG=./qemu-img MALLOC_PERTURB_=116 QTEST_QEMU_STORAGE_DAEMON_BINARY=./storage-daemon/qemu-storage-daemon G_TEST_DBUS_DAEMON=/builds/qemu-project/qemu/tests/dbus-vmstate-daemon.sh QTEST_QEMU_BINARY=./qemu-system-x86_64 /builds/qemu-project/qemu/build/tests/qtest/migration-test --tap -k > > ――――――――――――――――――――――――――――――――――――― ✀ ――――――――――――――――――――――――――――――――――――― > > stderr: > > qemu-system-x86_64: Unable to read from socket: Connection reset by peer > > Memory content inconsistency at 5b43000 first_byte = bd last_byte = bc current = 4f hit_edge = 1 > > ** > > ERROR:../tests/qtest/migration-test.c:300:check_guests_ram: assertion failed: (bad == 0) > > (test program exited with status code -6) > > > > You can find the full output here: > > https://gitlab.com/qemu-project/qemu/-/jobs/5080200417 > > This is the postcopy return path issue that I'm addressing here: > > https://lore.kernel.org/r/20230911171320.24372-1-farosas@suse.de > Subject: [PATCH v6 00/10] Fix segfault on migration return path > Message-ID: <20230911171320.24372-1-farosas@suse.de> Hmm I just noticed one thing, that Stefan's failure is a ram check issue only, which means qemu won't crash? Fabiano, are you sure it's the same issue on your return-path fix? I'm also trying to reproduce either of them with some loads. I think I hit some but it's very hard to reproduce solidly. -- Peter Xu