"PCIe Bus Error: severity=Corrected" on Jetson Nano

Autonomous Machines Jetson & Embedded Systems Jetson Nano
3

It is mostly because of ASPM L1 being enabled. You can give it a try by disabling ASPM using the following methods. Many of the off the shelf PCIe devices have issues with ASPM states (even though they advertise their support for ASPM states)

  • Disabling ASPM can be achieved in the following ways for a platform
  • Disabling from the beginning
    • Appending ‘pcie_aspm=off’ to the kernel command line
    • Removing “CONFIG_PCIEASPM_POWERSAVE=y” and setting “CONFIG_PCIEASPM_PERFORMANCE=y” in the kernel configuration
  • Disabling after system boots to console
    • Executing the below command once the system boots to console
      • echo “performance” > /sys/module/pcie_aspm/parameters/policy
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