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X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: dXYUEHw4bq+Bd0gX2IWylresavYoLawrbB6/jEtabIHAQUheLMVZWukzpEMvG6if35aiGsgFVeL++SuZ9NnOH1B5PUjNp710+FPqvCOSfrSoGTgjjwQOydgTjsRsjV51BS5fZMJgG0tcCjA28aumBMFaK7/YHK0YyQ1xprHA/BdgntpokiaDB9aqxvxy5SPniJq1i+wV/pkDs1gtIAbFiFKgKkguXHwf2egrkVtfouPUpgExTofVU8Vb0J5QceocYLeWhuuTuOOFyOkI3Llai+FbZxmBk0TJxykZkjrMxceQeo0YGgdnqWXrOOf0QzGGxcQUSzMXdrJXNT63GU06rHeKWI2KuZatEVmkYipBO1fTALUoUr9IffLE0Pe7CB8JqCkJ/D6AnoT5/vx9rChVkawec571jD48oO95mtXkxwo/n90QIcXYEp1/PYae0fQo X-ExternalRecipientOutboundConnectors: 0bc7f26d-0264-416e-a6fc-8352af79c58f X-Auto-Response-Suppress: DR, OOF, AutoReply X-OriginatorOrg: virtuozzo.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 02 Nov 2026 11:07:34.0466 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: ff83980c-44fd-42ff-c922-08df38d17f15 X-MS-Exchange-CrossTenant-Id: 0bc7f26d-0264-416e-a6fc-8352af79c58f X-MS-Exchange-CrossTenant-AuthSource: DU2PEPF00028D0C.eurprd03.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: Internet X-MS-Exchange-Transport-CrossTenantHeadersStamped: VI1PR08MB10200 > In the CPR modes guest RAM is preserved in place, not copied: > migrate_ram_is_ignored() is true for every block. Yet ram_init_bitmaps() > still starts the global dirty log, so every listener starts tracking > pages nobody will send. KVM write-protects all guest memory, and VFIO > starts DMA logging on the devices; with cpr-exec that logging is never > stopped before the exec, leaving e.g. the DMA page tracker of an NVIDIA > vGPU running after the update. >=20 > Don't start the dirty log for a migration that migrates no RAM, as is > already done for background snapshots. ram_save_cleanup() only stops > the log if it was started. >=20 > 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/20261102-vfio= _v1-v6-0-9bc7cabc850d@virtuozzo.com?part=3D27