Re: [PATCH] PCI/portdrv: Avoid enabling AER on Thunderbolt devices

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On Mon, Dec 26, 2022 at 11:30:31PM +0800, Kai-Heng Feng wrote:
> We are seeing igc ethernet device on Thunderbolt dock stops working
> after S3 resume because of AER error, or even make S3 resume freeze:
> pcieport 0000:00:1d.0: AER: Multiple Corrected error received: 0000:00:1d.0
> pcieport 0000:00:1d.0: PCIe Bus Error: severity=Corrected, type=Transaction Layer, (Receiver ID)
> pcieport 0000:00:1d.0:   device [8086:7ab0] error status/mask=00008000/00002000
> pcieport 0000:00:1d.0:    [15] HeaderOF
> pcieport 0000:00:1d.0: AER: Multiple Uncorrected (Non-Fatal) error received: 0000:00:1d.0
> pcieport 0000:00:1d.0: PCIe Bus Error: severity=Uncorrected (Non-Fatal), type=Transaction Layer, (Requester ID)
> pcieport 0000:00:1d.0:   device [8086:7ab0] error status/mask=00100000/00004000
> pcieport 0000:00:1d.0:    [20] UnsupReq               (First)
> pcieport 0000:00:1d.0: AER:   TLP Header: 34000000 0a000052 00000000 00000000
> pcieport 0000:00:1d.0: AER:   Error of this Agent is reported first
> pcieport 0000:04:01.0: PCIe Bus Error: severity=Uncorrected (Non-Fatal), type=Transaction Layer, (Requester ID)
> pcieport 0000:04:01.0:   device [8086:1136] error status/mask=00300000/00000000
> pcieport 0000:04:01.0:    [20] UnsupReq               (First)
> pcieport 0000:04:01.0:    [21] ACSViol
> pcieport 0000:04:01.0: AER:   TLP Header: 34000000 04000052 00000000 00000000
> thunderbolt 0000:05:00.0: AER: can't recover (no error_detected callback)

Is this a regression?  E.g., is this something that started after
f26e58bf6f54 ("PCI/AER: Enable error reporting when AER is native") or
something similar?

Bjorn



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