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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 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..) 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.. Best Regards, Youness MARDI
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