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X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: 4VGBiIvFlCoaQ91NDwtl/HEnv1KmmqaIoCCChbFFY099d90wkGP25bIWA6WJfR7wItMB1fmTQuUQIqkw0I4zkt8lqSme0xw9z5bW/EFKeCtuVruHXZY3YtBqWjXn039ZSaRmOMB0dPo1nPnyjiWoorrd6sbPMpVhQdYstE78F0Ci7n9ExkQLB6wtiiNLjSAQRl9qQx4V4LnCscz/56BSE/3ioC8rHd21Qbj/QH7qCU4xCwhxGG7pAU24YEqKrEmbuwFCu9uv5VXYoD3ejThSJhxziPw7uMruMoVI04Xju+VEEpjAviU9pO8QVcFyCA2sR8xQSOhYbDNmnM3DMe1YOv1O1i4cLuBBSmLUSrg/l+RfrnVRDuRbJ2vqCU4wVGRpqUDitgjgQajxNnwJrwqPa4mTN6ZIgV28ia5S2EJqQrbzuM8UP89Lbs+wKcBlzfCO X-ExternalRecipientOutboundConnectors: 0bc7f26d-0264-416e-a6fc-8352af79c58f X-OriginatorOrg: virtuozzo.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 16 Oct 2026 15:56:26.6617 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: f664a469-35aa-48d0-5536-08df2b9e091d X-MS-Exchange-CrossTenant-Id: 0bc7f26d-0264-416e-a6fc-8352af79c58f X-MS-Exchange-CrossTenant-AuthSource: MAD0EPF000008AC.eurprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: Internet X-MS-Exchange-Transport-CrossTenantHeadersStamped: DU0PR08MB9347 > vhost_net_cpr_reset_owners() only warns when VHOST_RESET_OWNER fails for > a device, and the exec goes on. But the new QEMU can't take such a > device: it is still owned by the old mm, so VHOST_SET_OWNER fails with > EBUSY, and the guest is left without network after the update. >=20 > Stop at the first device that can't be released and abort the cpr-exec > instead. The VM goes on in the old QEMU, with the devices released so > far taken back. vhost-vsock already does that in its pre_save. >=20 > Fixes: 1278e4830052 ("VZ: migration/cpr-exec: vhost-net: send RESET_OWNER= before cpr-exec") > Signed-off-by: Andrey Drobyshev Sashiko has reviewed this patch and found no issues. It looks great! --=20 Sashiko AI review =C2=B7 https://sashiko.vzint.dev/#/patchset/20261016-vfio= _v1-v3-0-47487cb5a8e5@virtuozzo.com?part=3D26