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Tue, 09 Dec 2025 10:54:48 -0800 (PST) X-Google-Smtp-Source: AGHT+IGGoWXQKA+EY0mXVd7mDqef+wzi7zU58j+VU1ytb0p5p2tdlAoq3JQW+erw/oXRUr8FZItUXQ== X-Received: by 2002:a05:620a:404f:b0:8b2:f26e:3220 with SMTP id af79cd13be357-8ba38a76499mr8039285a.8.1765306487786; Tue, 09 Dec 2025 10:54:47 -0800 (PST) Received: from x1.local ([142.188.210.156]) by smtp.gmail.com with ESMTPSA id af79cd13be357-8b627a79b75sm1346025985a.25.2025.12.09.10.54.46 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 09 Dec 2025 10:54:47 -0800 (PST) Date: Tue, 9 Dec 2025 13:54:46 -0500 From: Peter Xu To: "Chaney, Ben" Cc: "berrange@redhat.com" , "farosas@suse.de" , "armbru@redhat.com" , "mark.kanda@oracle.com" , "qemu-devel@nongnu.org" , "Hunt, Joshua" , "Tottenham, Max" , "Hudson, Nick" Subject: Re: [PATCH] migration: cpr socket permissions fix Message-ID: References: <20251120185733.141912-1-bchaney@akamai.com> <3DD5C44B-B1D5-4E5D-95F5-45DA855DDD39@akamai.com> <85437E51-DEC6-4B79-8E5E-93B5D64D4CB2@akamai.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <85437E51-DEC6-4B79-8E5E-93B5D64D4CB2@akamai.com> Received-SPF: pass client-ip=170.10.129.124; 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_H2=0.001, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, RCVD_IN_VALIDITY_SAFE_BLOCKED=0.001, SPF_HELO_PASS=-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 Mon, Dec 08, 2025 at 07:32:41PM +0000, Chaney, Ben wrote: > > On 12/5/25, 10:13 AM, "Peter Xu" > wrote: > > > > Maybe you can stick with -incoming defer, then it'll be after step [3], > > which will inherit the modified uid, and mgmt doesn't need to bother > > monitoring. > > I tried this approach, but It doesn't look like it is possible to create the > cprsocket later with -incoming defer. You'll still need to chmod for the cpr socket. "defer" will still help the main channel to be created with the uid provided. -- Peter Xu