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X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: owXHUBwqQ+dVGDegfQQhWR4r2WDuK3ged4cDkpQOszGD418seyDmOBnXHwqayd0kCZsGoyy48A9Xy2sNgXzC8pc0BfFgf1IaCglV7mYvvsTikbzOEw8Plrcp1iup5H6j1ff+vOTBMYSBdy5tXiayL7KyxvTvxCzlRs4FK9hORiahemV0OiIGuHFHfu0dOZlcfJ8gB+i5mLTaYFeLws0y2bKqWrPpKRqfs5EbIMZHRRPM7naBqueGz9eKb5hmK+2On5JuqRDe0A0Y1U399C/isyiVg7tfKlo5eIuiu63zx48ljfDKCvOVB8EFxADDqyRG8q/zhZGubbZEFsN/RUTCTNOhPvgwQmp39VY2NT59ZzXN0wNV5vXYqxYjbmOkI6pMdlRV8VjiYoUD5hWs7fN/Dx2GhOx70A2OWEad6mWcANdjUzaLkMse03GNhUJZ2RAg X-ExternalRecipientOutboundConnectors: 0bc7f26d-0264-416e-a6fc-8352af79c58f X-OriginatorOrg: virtuozzo.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 23 Oct 2026 17:30:15.2431 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: c214b942-77cf-47ec-2ef6-08df312b4ce6 X-MS-Exchange-CrossTenant-Id: 0bc7f26d-0264-416e-a6fc-8352af79c58f X-MS-Exchange-CrossTenant-AuthSource: MAD0EPF000008C3.eurprd05.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: Internet X-MS-Exchange-Transport-CrossTenantHeadersStamped: DU0PR08MB9275 > 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/20261023-vfio= _v1-v5-0-ba0bf3c6d122@virtuozzo.com?part=3D31