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[193.144.61.252]) by smtp.gmail.com with ESMTPSA id t6-20020a05600c450600b003dc433bb5e1sm11128005wmo.9.2023.02.06.01.36.03 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 06 Feb 2023 01:36:03 -0800 (PST) From: Juan Quintela To: Peter Maydell Cc: Thomas Huth , Kevin Wolf , Daniel P. =?utf-8?Q?Berrang=C3=A9?= , Qemu-block , qemu-devel@nongnu.org, Alex =?utf-8?Q?Benn=C3=A9e?= , Philippe =?utf-8?Q?Mathieu-Daud=C3=A9?= , Stefan Hajnoczi , Richard Henderson , hreitz@redhat.com, dgilbert@redhat.com Subject: Re: [PATCH 6/6] gitlab-ci.d/buildtest: Disintegrate the build-coroutine-sigaltstack job In-Reply-To: (Peter Maydell's message of "Sat, 4 Feb 2023 10:23:17 +0000") References: <20230130104446.1286773-1-thuth@redhat.com> <20230130104446.1286773-7-thuth@redhat.com> <2caefefa-8757-af55-ccf3-fcc641db0784@redhat.com> <87sffme9jj.fsf@secure.mitica> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/28.2 (gnu/linux) Date: Mon, 06 Feb 2023 10:36:02 +0100 Message-ID: <87r0v3cf0d.fsf@secure.mitica> MIME-Version: 1.0 Content-Type: text/plain Received-SPF: pass client-ip=170.10.133.124; envelope-from=quintela@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_H2=-0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=unavailable 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: , Reply-To: quintela@redhat.com Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Peter Maydell wrote: > On Fri, 3 Feb 2023 at 21:14, Juan Quintela wrote: >> >> Peter Maydell wrote: >> > The migration tests have been flaky for a while now, >> > including setups where host and guest page sizes are the same. >> > (For instance, my x86 macos box pretty reliably sees failures >> > when the machine is under load.) >> >> I *thought* that we had fixed all of those. >> >> But it is difficult for me to know because: >> - I only happens when one runs "make check" >> - running ./migration-test have never failed to me >> - When it fails (and it has been a while since it has failed to me) >> it is impossible to me to detect what is going on, and as said, I have >> never been able to reproduce running only migration-test. > > Yes. If we could improve the logging in the test so that when > an intermittent failure does happen the test prints better > clues about what happened, I think that would help a lot. > > https://lore.kernel.org/qemu-devel/CAFEAcA8x_iM3hN2-P9F+huXnXFXy+D6FzE+Leq4erLdg7zkVGw@mail.gmail.com/ > is the thread from late December about the macos failures. We (red hat) found a similar problem with aarch64, but only when using zero copy. Will try to see if I can reproduce this other there. https://bugzilla.redhat.com/show_bug.cgi?id=2160929 the similar thing to what you have is: - they are trying to cancel - they are on aarch64 but: - they can only reproduce with zero copy enabled. Later, Juan.