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[188.86.86.233]) by smtp.gmail.com with ESMTPSA id m34sm3365855wms.25.2021.11.16.08.36.20 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 16 Nov 2021 08:36:20 -0800 (PST) From: Juan Quintela To: "Rao, Lei" Subject: Re: [PATCH v2] Fixed a QEMU hang when guest poweroff in COLO mode In-Reply-To: <1636596693-8477-1-git-send-email-lei.rao@intel.com> (Lei Rao's message of "Thu, 11 Nov 2021 10:11:33 +0800") References: <1636596693-8477-1-git-send-email-lei.rao@intel.com> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/27.2 (gnu/linux) Date: Tue, 16 Nov 2021 17:36:20 +0100 Message-ID: <878rxoukfv.fsf@secure.mitica> MIME-Version: 1.0 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=quintela@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain Received-SPF: pass client-ip=170.10.129.124; envelope-from=quintela@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -34 X-Spam_score: -3.5 X-Spam_bar: --- X-Spam_report: (-3.5 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.697, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H4=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: , Reply-To: quintela@redhat.com Cc: qemu-devel@nongnu.org, chen.zhang@intel.com, zhang.zhanghailiang@huawei.com, dgilbert@redhat.com Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" "Rao, Lei" wrote: > From: "Rao, Lei" > > When the PVM guest poweroff, the COLO thread may wait a semaphore > in colo_process_checkpoint().So, we should wake up the COLO thread > before migration shutdown. > > Signed-off-by: Lei Rao Reviewed-by: Juan Quintela