Interim way around Thor freezing, stalling and or having periodic 100% cpu bursts. Much better than running “nvidia-smi dmon” while logged in locally.
echo on |sudo tee /sys/bus/pci/devices/0000:01:00.0/power/control
Thank you @wangming9 who noted that the problem does not recur after executing the command.
Since I ran it have had zero freezes or stalls.
Still getting this dmesg and look forward to Nvidia’s fix for both issues.
[Thu Oct 23 13:47:11 2025] NVRM: rpcRmApiControl_dce: NVRM_RPC_DCE: Failed RM ctrl call cmd:0x731341 result 0xffff: Failure: Generic Error [NV_ERR_GENERIC]
[Thu Oct 23 13:47:11 2025] tegra-mc 8108020000.memory-controller: dispr: non-secure read @0x0000fffffffff600: EMEM address decode error (EMEM decode error)
[Thu Oct 23 13:47:11 2025] tegra-mc 8108020000.memory-controller: ptcr: @0x0000000000000000: Read response with poison bit error status:0
[Thu Oct 23 13:47:11 2025] tegra-mc 8108020000.memory-controller: dispr: non-secure read @0x0000fffffffffe00: EMEM address decode error (EMEM decode error)
[Thu Oct 23 13:47:11 2025] tegra-mc 8108020000.memory-controller: dispr: non-secure read @0x0000fffffffff780: EMEM address decode error (EMEM decode error)
[Thu Oct 23 13:47:11 2025] tegra-mc 8108020000.memory-controller: dispr: non-secure read @0x0000fffffffffa00: EMEM address decode error (EMEM decode error)
[Thu Oct 23 13:47:11 2025] tegra-mc 8108020000.memory-controller: dispr: non-secure read @0x0000fffffffffc00: EMEM address decode error (EMEM decode error)
[Thu Oct 23 13:47:11 2025] arm_smmu_evtq_thread: 32758 callbacks suppressed
[Thu Oct 23 13:47:11 2025] arm-smmu-v3 8806000000.iommu: event 0x10 received:
[Thu Oct 23 13:47:11 2025] arm-smmu-v3 8806000000.iommu: 0x0000090000000010
[Thu Oct 23 13:47:11 2025] arm-smmu-v3 8806000000.iommu: 0x0000020800000000
[Thu Oct 23 13:47:11 2025] arm-smmu-v3 8806000000.iommu: 0x0000007ffb06a600
[Thu Oct 23 13:47:11 2025] arm-smmu-v3 8806000000.iommu: 0x0000000000000000
[Thu Oct 23 13:47:11 2025] arm-smmu-v3 8806000000.iommu: event 0x10 received:
[Thu Oct 23 13:47:11 2025] arm-smmu-v3 8806000000.iommu: 0x0000090000000010
[Thu Oct 23 13:47:11 2025] arm-smmu-v3 8806000000.iommu: 0x0000020800000000
[Thu Oct 23 13:47:11 2025] arm-smmu-v3 8806000000.iommu: 0x0000007ffb06c600
[Thu Oct 23 13:47:11 2025] arm-smmu-v3 8806000000.iommu: 0x0000000000000000
[Thu Oct 23 13:47:11 2025] arm-smmu-v3 8806000000.iommu: event 0x10 received:
[Thu Oct 23 13:47:11 2025] arm-smmu-v3 8806000000.iommu: 0x0000090000000010
[Thu Oct 23 13:47:11 2025] arm-smmu-v3 8806000000.iommu: 0x0000020800000000
[Thu Oct 23 13:47:11 2025] arm-smmu-v3 8806000000.iommu: 0x0000007ffb06e600
[Thu Oct 23 13:47:11 2025] arm-smmu-v3 8806000000.iommu: 0x0000000000000000
[Thu Oct 23 13:47:11 2025] arm-smmu-v3 8806000000.iommu: event 0x10 received:
[Thu Oct 23 13:47:11 2025] arm-smmu-v3 8806000000.iommu: 0x0000090000000010
[Thu Oct 23 13:47:11 2025] arm-smmu-v3 8806000000.iommu: 0x0000020800000000
[Thu Oct 23 13:47:11 2025] arm-smmu-v3 8806000000.iommu: 0x0000007ffb070600
[Thu Oct 23 13:47:11 2025] arm-smmu-v3 8806000000.iommu: 0x0000000000000000
[Thu Oct 23 13:47:11 2025] arm-smmu-v3 8806000000.iommu: event 0x10 received:
[Thu Oct 23 13:47:11 2025] arm-smmu-v3 8806000000.iommu: 0x0000090000000010
[Thu Oct 23 13:47:11 2025] arm-smmu-v3 8806000000.iommu: 0x0000020800000000
[Thu Oct 23 13:47:11 2025] arm-smmu-v3 8806000000.iommu: 0x0000007ffb06a700
[Thu Oct 23 13:47:11 2025] arm-smmu-v3 8806000000.iommu: 0x0000000000000000
[Thu Oct 23 13:47:11 2025] arm-smmu-v3 8806000000.iommu: event 0x10 received:
[Thu Oct 23 13:47:11 2025] arm-smmu-v3 8806000000.iommu: 0x0000090000000010
[Thu Oct 23 13:47:11 2025] arm-smmu-v3 8806000000.iommu: 0x0000020800000000
[Thu Oct 23 13:47:11 2025] arm-smmu-v3 8806000000.iommu: 0x0000007ffb06c700
[Thu Oct 23 13:47:11 2025] arm-smmu-v3 8806000000.iommu: 0x0000000000000000
[Thu Oct 23 13:47:11 2025] arm-smmu-v3 8806000000.iommu: event 0x10 received:
[Thu Oct 23 13:47:11 2025] arm-smmu-v3 8806000000.iommu: 0x0000090000000010
[Thu Oct 23 13:47:11 2025] arm-smmu-v3 8806000000.iommu: 0x0000020800000000
[Thu Oct 23 13:47:11 2025] arm-smmu-v3 8806000000.iommu: 0x0000007ffb072600
[Thu Oct 23 13:47:11 2025] arm-smmu-v3 8806000000.iommu: 0x0000000000000000
[Thu Oct 23 13:47:11 2025] arm-smmu-v3 8806000000.iommu: event 0x10 received:
[Thu Oct 23 13:47:11 2025] arm-smmu-v3 8806000000.iommu: 0x0000090000000010
[Thu Oct 23 13:47:11 2025] arm-smmu-v3 8806000000.iommu: 0x0000020800000000
[Thu Oct 23 13:47:11 2025] arm-smmu-v3 8806000000.iommu: 0x0000007ffb074600
[Thu Oct 23 13:47:11 2025] arm-smmu-v3 8806000000.iommu: 0x0000000000000000
[Thu Oct 23 13:47:11 2025] arm-smmu-v3 8806000000.iommu: event 0x10 received:
[Thu Oct 23 13:47:11 2025] arm-smmu-v3 8806000000.iommu: 0x0000090000000010
[Thu Oct 23 13:47:11 2025] arm-smmu-v3 8806000000.iommu: 0x0000020800000000
[Thu Oct 23 13:47:11 2025] arm-smmu-v3 8806000000.iommu: 0x0000007ffb078600
[Thu Oct 23 13:47:11 2025] arm-smmu-v3 8806000000.iommu: 0x0000000000000000
[Thu Oct 23 13:47:11 2025] arm-smmu-v3 8806000000.iommu: event 0x10 received:
[Thu Oct 23 13:47:11 2025] arm-smmu-v3 8806000000.iommu: 0x0000090000000010
[Thu Oct 23 13:47:11 2025] arm-smmu-v3 8806000000.iommu: 0x0000020800000000
[Thu Oct 23 13:47:11 2025] arm-smmu-v3 8806000000.iommu: 0x0000007ffb07c600
[Thu Oct 23 13:47:11 2025] arm-smmu-v3 8806000000.iommu: 0x0000000000000000