On Mon, May 07, 2018 at 08:30:35AM -0400, Aron Griffis wrote: > (Reposting to fix line wrapping, and cc'ing linux-pci at Bjorn's request.) > > I'm getting this error continuously with an Intel 760p on 4.16.5 (Fedora 28) > > pcieport 0000:00:1d.0: AER: Uncorrected (Non-Fatal) error received: id=00e8 > pcieport 0000:00:1d.0: PCIe Bus Error: severity=Uncorrected (Non-Fatal), type=Transaction Layer, id=00e8(Requester ID) > pcieport 0000:00:1d.0: device [8086:a298] error status/mask=00100000/00010000 > pcieport 0000:00:1d.0: [20] Unsupported Request (First) > pcieport 0000:00:1d.0: TLP Header: 34000000 70000010 00000000 88468846 > pcieport 0000:00:1d.0: broadcast error_detected message > pcieport 0000:00:1d.0: broadcast mmio_enabled message > pcieport 0000:00:1d.0: broadcast resume message > pcieport 0000:00:1d.0: AER: Device recovery successful > > Willy graciously decoded this for me to a "Latency Tolerance Reporting > Message," and suggested I send email to this list to check whether it's a > problem with the device or driver. > > lspci and full dmesg follow. Please let me know if something else would be > helpful. I have some information back from the development team to share. They believe this may be a hardware errata and are investigating a firmware side fix. In the meantime, they think there may be other ways to work around this, if these are acceptable. Specifically, disabling any non-operational link states may make this go away, and adding kernel parameter "pcie_aspm=off" should achieve that.
