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Wed, 05 Nov 2025 12:14:40 +0300 (MSK) Received: from [192.168.177.146] (mjtthink.wg.tls.msk.ru [192.168.177.146]) by tsrv.corpit.ru (Postfix) with ESMTP id A7A2830C5E1; Wed, 05 Nov 2025 12:14:47 +0300 (MSK) Message-ID: <02f20cb3-c9f5-481c-b34e-bc56b4724f68@tls.msk.ru> Date: Wed, 5 Nov 2025 12:14:47 +0300 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: =?UTF-8?Q?Re=3A_=5BBUG=5D_Migration_failure_between_QEMU_9=2E2=2E4_?= =?UTF-8?Q?=E2=86=92_8=2E2=2E10_due_to_virtio-net_feature_mismatch_=28VIRTIO?= =?UTF-8?Q?=5FF=5FRING=5FRESET_/_USO_features=29?= To: Jinpu Wang , qemu-devel , Peter Xu , qemu-stable@nongnu.org, Jason Wang , Fabiano Rosas , Yu Zhang , qemu-stable References: Content-Language: en-US, ru-RU From: Michael Tokarev Autocrypt: addr=mjt@tls.msk.ru; keydata= xsFNBGYpLkcBEACsajkUXU2lngbm6RyZuCljo19q/XjZTMikctzMoJnBGVSmFV66kylUghxs HDQQF2YZJbnhSVt/mP6+V7gG6MKR5gYXYxLmypgu2lJdqelrtGf1XtMrobG6kuKFiD8OqV6l 2M5iyOZT3ydIFOUX0WB/B9Lz9WcQ6zYO9Ohm92tiWWORCqhAnwZy4ua/nMZW3RgO7bM6GZKt /SFIorK9rVqzv40D6KNnSyeWfqf4WN3EvEOozMfWrXbEqA7kvd6ShjJoe1FzCEQ71Fj9dQHL DZG+44QXvN650DqEtQ4RW9ozFk3Du9u8lbrXC5cqaCIO4dx4E3zxIddqf6xFfu4Oa5cotCM6 /4dgxDoF9udvmC36qYta+zuDsnAXrYSrut5RBb0moez/AR8HD/cs/dS360CLMrl67dpmA+XD 7KKF+6g0RH46CD4cbj9c2egfoBOc+N5XYyr+6ejzeZNf40yjMZ9SFLrcWp4yQ7cpLsSz08lk a0RBKTpNWJdblviPQaLW5gair3tyJR+J1ER1UWRmKErm+Uq0VgLDBDQoFd9eqfJjCwuWZECp z2JUO+zBuGoKDzrDIZH2ErdcPx3oSlVC2VYOk6H4cH1CWr9Ri8i91ClivRAyVTbs67ha295B y4XnxIVaZU+jJzNgLvrXrkI1fTg4FJSQfN4W5BLCxT4sq8BDtwARAQABzSBNaWNoYWVsIFRv a2FyZXYgPG1qdEB0bHMubXNrLnJ1PsLBlAQTAQoAPhYhBJ2L4U4/Kp3XkZko8WGtPZjs3yyO BQJmKS5HAhsDBQkSzAMABQsJCAcCBhUKCQgLAgQWAgMBAh4BAheAAAoJEGGtPZjs3yyOZSAP /ibilK1gbHqEI2zR2J59Dc0tjtbByVmQ8IMh0SYU3j1jeUoku2UCgdnGKpwvLXtwZINgdl6Q cEaDBRX6drHLJFAi/sdgwVgdnDxaWVJO/ZIN/uJI0Tx7+FSAk8CWSa4IWUOzPNmtrDfb4z6v G36rppY8bTNKbX6nWFXuv2LXQr7g6+kKnbwv4QFpD+UFF1CrLm3byMq4ikdBXpZx030qBL61 b7PrfXcBLao0357kWGH6C2Zu4wBnDUJwGi68pI5rzSRAFyAQsE89sjLdR1yFoBH8NiFnAQXP LA8Am9FMsC7D/bi/kwKTJdcZvzdGU1HG6tJvXLWC+nqGpJNBzRdDpjqtxNuL76vVd/JbsFMS JchLN+01fNQ5FHglvkd6md7vO+ULq+r9An5hMiDoRbYVUOBN8uiYNk+qKbdgSfbhsgPURqHi 1bXkgMeMasqWbGMe7iBW/YH2ePfZ6HuKLNQDCkiWZYPQZvyXHvQHjuJJ5+US81tkqM+Q6Snq 0L/O/LD0qLlbinHrcx0abg06VXBoYmGICJpf/3hhWQM4f+B/5w4vpl8q0B6Osz01pBUBfYak CiYCNHMWWVZkW9ZnY7FWiiPOu8iE1s5oPYqBljk3FNUk04SDKMF5TxL87I2nMBnVnvp0ZAuY k9ojiLqlhaKnZ1+zwmwmPmXzFSwlyMczPUMSzsFNBGYpLkcBEAC0mxV2j5M1x7GiXqxNVyWy OnlWqJkbkoyMlWFSErf+RUYlC9qVGwUihgsgEhQMg0nJiSISmU3vsNEx5j0T13pTEyWXWBdS XtZpNEW1lZ2DptoGg+6unpvxd2wn+dqzJqlpr4AY3vc95q4Za/NptWtSCsyJebZ7DxCCkzET tzbbnCjW1souCETrMy+G916w1gJkz4V1jLlRMEEoJHLrr1XKDdJRk/34AqXPKOzILlWRFK6s zOWa80/FNQV5cvjc2eN1HsTMFY5hjG3zOZb60WqwTisJwArjQbWKF49NLHp/6MpiSXIxF/FU jcVYrEk9sKHN+pERnLqIjHA8023whDWvJide7f1V9lrVcFt0zRIhZOp0IAE86E3stSJhZRhY xyIAx4dpDrw7EURLOhu+IXLeEJbtW89tp2Ydm7TVAt5iqBubpHpGTWV7hwPRQX2w2MBq1hCn K5Xx79omukJisbLqG5xUCR1RZBUfBlYnArssIZSOpdJ9wWMK+fl5gn54cs+yziUYU3Tgk0fJ t0DzQsgfd2JkxOEzJACjJWti2Gh3szmdgdoPEJH1Og7KeqbOu2mVCJm+2PrNlzCybOZuHOV5 +vSarkb69qg9nU+4ZGX1m+EFLDqVUt1g0SjY6QmM5yjGBA46G3dwTEV0/u5Wh7idNT0mRg8R eP/62iTL55AM6QARAQABwsF8BBgBCgAmFiEEnYvhTj8qndeRmSjxYa09mOzfLI4FAmYpLkcC GwwFCRLMAwAACgkQYa09mOzfLI53ag/+ITb3WW9iqvbjDueV1ZHwUXYvebUEyQV7BFofaJbJ Sr7ek46iYdV4Jdosvq1FW+mzuzrhT+QzadEfYmLKrQV4EK7oYTyQ5hcch55eX00o+hyBHqM2 RR/B5HGLYsuyQNv7a08dAUmmi9eAktQ29IfJi+2Y+S1okAEkWFxCUs4EE8YinCrVergB/MG5 S7lN3XxITIaW00faKbqGtNqij3vNxua7UenN8NHNXTkrCgA+65clqYI3MGwpqkPnXIpTLGl+ wBI5S540sIjhgrmWB0trjtUNxe9QcTGHoHtLeGX9QV5KgzNKoUNZsyqh++CPXHyvcN3OFJXm VUNRs/O3/b1capLdrVu+LPd6Zi7KAyWUqByPkK18+kwNUZvGsAt8WuVQF5telJ6TutfO8xqT FUzuTAHE+IaRU8DEnBpqv0LJ4wqqQ2MeEtodT1icXQ/5EDtM7OTH231lJCR5JxXOnWPuG6el YPkzzso6HT7rlapB5nulYmplJZSZ4RmE1ATZKf+wUPocDu6N10LtBNbwHWTT5NLtxNJAJAvl ojis6H1kRWZE/n5buyPY2NYeyWfjjrerOYt3er55n4C1I88RSCTGeejVmXWuo65QD2epvzE6 3GgKngeVm7shlp7+d3D3+fAAHTvulQQqV3jOodz+B4yzuZ7WljkNrmrWrH8aI4uA98c= In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=212.248.84.144; envelope-from=mjt@tls.msk.ru; helo=isrv.corpit.ru X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, RCVD_IN_VALIDITY_SAFE_BLOCKED=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 11/5/25 11:49, Jinpu Wang wrote: > Hello QEMU developers, > > I’m encountering a migration failure when trying to live-migrate a VM > from a newer host (kernel 6.12 + QEMU 9.2.4) to an older one (kernel > 6.1 + QEMU 8.2.10). This is just to note - both 9.2.x and 8.2.x series are end-of-line now from the qemu PoV, there are no further releases planned. It'd be nice to find out what's going on here anyway. Maybe you can patch this on your side. Thanks, /mjt