Hello, Could you help us on this issue: https://github.com/intel/linux-intel-lts/issues/54
Host environment Operating system: Gentoo Base System release 2.14 OS/kernel version: https://github.com/intel/linux-intel-lts/tree/lts-v6.6.34-linux-240626T131354Z Architecture: x86_64 QEMU flavor: qemu-system-x86_64 QEMU version: latest qemu (master branch) CPU: 12th Gen Intel(R) Core(TM) i7-1270P igpu: Alder Lake-P firmware: https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git/snapshot/linux-firmware-20241110.tar.gz Emulated/Virtualized environment Operating system: Windows 10 21H1 Description of problem After setting up SR-IOV (kernel compilation, kernel cmdline, vfio-pci driver attribution to the new pci..) I've got my two new pci. 00:02.0 VGA compatible controller: Intel Corporation Alder Lake-P Integrated Graphics Controller (rev 0c) DeviceName: Onboard IGD Subsystem: Hewlett-Packard Company Alder Lake-P Integrated Graphics Controller Kernel driver in use: i915 00:02.1 VGA compatible controller: Intel Corporation Alder Lake-P Integrated Graphics Controller (rev 0c) Subsystem: Hewlett-Packard Company Alder Lake-P Integrated Graphics Controller Kernel driver in use: vfio-pci 00:02.2 VGA compatible controller: Intel Corporation Alder Lake-P Integrated Graphics Controller (rev 0c) Subsystem: Hewlett-Packard Company Alder Lake-P Integrated Graphics Controller Kernel driver in use: vfio-pci I gave one of those pci to my VM with this qemu cmdline: -cpu host,migratable=on,hv-time,hv-relaxed,hv-vapic,hv-spinlocks=0x1fff,hv-passthrough,hv-vendor-id=IrisXE ... -device vfio-pci-nohotplug,host=0000:00:02.1,id=hostdev0,bus=pci.4,addr=0x0 Sometimes it working properly when I start the qemu cmdline but most of the time I've got those kernel errors and a GPU hang: kernel [ 2252.208134] i915 0000:00:02.0: [drm] ERROR GT0: GUC: TLB invalidation response timed out for seqno 9679 kernel [ 2252.208134] i915 0000:00:02.0: [drm] ERROR GT0: GUC: TLB invalidation response timed out for seqno 9679 kernel i915 0000:00:02.0: [drm] ERROR GT0: GUC: TLB invalidation response timed out for seqno 9679 kernel i915 0000:00:02.0: [drm] ERROR GT0: GUC: TLB invalidation response timed out for seqno 9679 .... kernel Fence expiration time out i915-0000:00:02.0:renderThread22381:6e0! kernel i915 0000:00:02.0: [drm] GT0: GuC firmware i915/adlp_guc_70.bin version 70.13.1 kernel i915 0000:00:02.0: [drm] GT0: HuC firmware i915/tgl_huc.bin version 7.9.3 kernel i915 0000:00:02.0: [drm] GT0: HuC: authenticated for all workloads kernel i915 0000:00:02.0: [drm] GT0: GUC: submission enabled kernel i915 0000:00:02.0: [drm] GT0: GUC: SLPC enabled kernel [ 2730.991019] i915 0000:00:02.0: [drm] GPU HANG: ecode 12:1:85dfbfff, in renderThread [22381] kernel [ 2730.991084] i915 0000:00:02.0: [drm] renderThread22381 context reset due to GPU hang It mostly appears when Qemu is starting.. Any help would be appreciated, thanks a lot Best Regards, Youness MARDI C2 - Usage restreint
