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([2001:b07:6468:f312:2e86:3d8b:8b70:920c]) by smtp.gmail.com with ESMTPSA id v9sm36238wrv.35.2020.10.05.06.51.45 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 05 Oct 2020 06:51:46 -0700 (PDT) Subject: Re: [PATCH v7 00/14] Reverse debugging To: Pavel Dovgalyuk , qemu-devel@nongnu.org References: <160174516520.12451.10785284392438702137.stgit@pasha-ThinkPad-X280> <1d81369e-3e20-444a-1ad4-197edc0245a9@redhat.com> <1c91f71b-c144-65c2-82b4-1121fa9a7c07@ispras.ru> From: Paolo Bonzini Message-ID: Date: Mon, 5 Oct 2020 15:51:47 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.11.0 MIME-Version: 1.0 In-Reply-To: <1c91f71b-c144-65c2-82b4-1121fa9a7c07@ispras.ru> Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=pbonzini@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=216.205.24.124; envelope-from=pbonzini@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/10/05 02:11:31 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] [fuzzy] X-Spam_score_int: -27 X-Spam_score: -2.8 X-Spam_bar: -- X-Spam_report: (-2.8 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.733, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, NICE_REPLY_A=-0.001, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H5=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: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: kwolf@redhat.com, wrampazz@redhat.com, ehabkost@redhat.com, alex.bennee@linaro.org, mtosatti@redhat.com, armbru@redhat.com, mreitz@redhat.com, stefanha@redhat.com, crosa@redhat.com, philmd@redhat.com, zhiwei_liu@c-sky.com, rth@twiddle.net Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" On 05/10/20 15:45, Pavel Dovgalyuk wrote: > > That's very strange. > None of the patches affect RR for AArch64. Is this the real failure or > just a coincidence? > I also tried running this test on my local machine and got normal > execution time for replay: > real    0m0,968s > user    0m0,657s > sys    0m0,625s > > By the way, this is an early RR test. Now we have more complex (and > easier to reproduce) avocado-based RR tests (for aarch64 too). > I.e. record and replay in this test are divided into two "tests", > and can cause races if running in parallel for some reason. Good to know. I'll keep this series in my tree so that it reruns, and will keep an eye on whether I see similar failures in the next few days. I have seen other similar timeouts (e.g. in xtensa test-timer) that weren't related to RR so it's possible that it's a false positive. > Shouldn't we just drop this one? Feel free to send a patch to Alex for it. Paolo