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=?utf-8?B?VGhYaFhwV1c4RlR6T0VOWU1vK25LMHI2a1k1YTJhNXkxN29SMk80Wlh6WkVF?= =?utf-8?B?N0JiNDV6VUlWeEdwTjZiMXlvN28wQTlZcS9VY0VZVlFKb0x5Wmk4NS9rVEhl?= =?utf-8?B?cEh1ODFFeGFKemg0c1hNV1hIVHVTN21JaGRtNjc4RVREZzdpU20rcFplL3A1?= =?utf-8?B?RUgrL1ZKSVk4OUhJd0JuSlNNbkVhcXMybG5qb3dxZjVENUVGTDdwTGlGdTZW?= =?utf-8?B?Y29iaW5zRjgySktobjJkYW9MMTJxRVY0ajMvOGZkVFNDZ2NTcUpKZkdieXZ0?= =?utf-8?B?a3RlM2Y5MENHT0V5TDdTNlFaYnhSZHVyMnBLR1k3TDNkdjdrNG1lZmxUd3I2?= =?utf-8?B?RXlVbUFxVTBRVlM5SnZvakJDNzVZMG9IOHZVMFhuUEdiT2VJR3l1R05OejFE?= =?utf-8?B?aHFCWVppSWZlSnRVV0lqM1hkN3o2bUxmT2hWZ0hqMnFLeURoWXpMQT09?= X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-Network-Message-Id: 937343f7-0ce8-41a6-44f0-08de64decee6 X-MS-Exchange-CrossTenant-AuthSource: MN0PR12MB6101.namprd12.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 05 Feb 2026 17:48:45.1834 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: BS7bO2qNKSXFRXx7o8lkR66ZF5chuxUZIt/BboZ/d8Qwjf+XDNQ0DWNlwVuRegot1cwaxKRKMMtikx7iA8taHw== X-MS-Exchange-Transport-CrossTenantHeadersStamped: DS0PR12MB8041 On 2/3/26 4:27 PM, Cal Peake wrote: > Hi, > > The recent commit 28695ca09d32: "drm/amd: Clean up kfd node on surprise > disconnect," has broken something with my VMs utilizing PCI passthrough. > Before launching the VM, I unbind a secondary Radeon GPU from the amdgpu > driver and then to the vfio-pci driver. > > Previously, everything would just work and I'd get the following kernel > output: > > amdgpu 0000:14:00.0: amdgpu: amdgpu: finishing device. > [drm] amdgpu: ttm finalized > vfio-pci 0000:14:00.0: vgaarb: VGA decodes changed: olddecodes=none,decodes=io+mem:owns=none > vfio-pci 0000:14:00.1: enabling device (0000 -> 0002) > vfio-pci 0000:14:00.3: enabling device (0000 -> 0002) > > However, now when doing the rebinding: the host display (a different > Radeon GPU) will freeze up and after a short time, the system will reset > (thanks to a watchdog I believe) and I get this in the kernel log: > > amdgpu 0000:14:00.0: amdgpu: amdgpu: finishing device. > vfio-pci 0000:14:00.1: Unable to change power state from D3hot to D0, device inaccessible > vfio-pci 0000:14:00.3: Unable to change power state from D3hot to D0, device inaccessible > vfio-pci 0000:14:00.2: Unable to change power state from D3hot to D0, device inaccessible > > > Indeed, backing out the commit from kernels 6.12.67, 6.12.68, and 6.18.8 > gets things back to working. > > Please let me know if you have any ideas or if there is anymore debugging > info I can provide. > > Thanks, > Here's a solution: https://lore.kernel.org/amd-gfx/20260205164254.4091912-1-mario.limonciello@amd.com/