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X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: TSWVxYp7FfTZezndxwzzlNGQnxaUFheFMv8HHmX3f6SwyS1P3DdPDLHI6oVNu6de44Ysc2QADYEPIwoOUeVso8S59L1tKd9TtSa01uLpLCzbT8L3CIJkGqSJ8lhbRRr4NCERop7dnIdYoi4/b466ey20oZb+c84yGyiN3NPYdODIcuJhBbIhRYHvFaYKUWgBIV5Y8AOmeKhkTLWRYjWZ3aBgbYG+froKLfSR4ysNAZLL+iOEc47XXNVTGyjSlGthrt2kH2KX0A4nPnqhEgg5kGz5G5F1SW1bhdpeGEJHIaF6m7h0exLvisv8zsrbcFm+tF/aCcZwReJquJ4KkjfKiQdcoCFyXtO6m060Cn9iX0EkJ4p5VUP5hLwUxFnRuQv0SGbcNs+SsCbjhgrMOEBRMTR0SP4KpMkS2RlrW3/J28E0ZyGTIbyIOOvJvdv1BDTK X-ExternalRecipientOutboundConnectors: 0bc7f26d-0264-416e-a6fc-8352af79c58f X-Auto-Response-Suppress: DR, OOF, AutoReply X-OriginatorOrg: virtuozzo.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 20 Oct 2026 17:03:01.2886 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 47f8308c-4281-4013-c69e-08df2ecbffb8 X-MS-Exchange-CrossTenant-Id: 0bc7f26d-0264-416e-a6fc-8352af79c58f X-MS-Exchange-CrossTenant-AuthSource: ZR1PEPF0000E6B6.eurprd07.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: Internet X-MS-Exchange-Transport-CrossTenantHeadersStamped: PR3PR08MB5708 > 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/20261020-vfio= _v1-v4-0-83a5668230e5@virtuozzo.com?part=3D28