On 7/17/2025 6:55 PM, Konrad Dybcio wrote: > On 7/17/25 12:46 PM, Baochen Qiang wrote: >> >> >> On 7/17/2025 6:31 PM, Manivannan Sadhasivam wrote: >>> On Thu, Jul 17, 2025 at 05:24:13PM GMT, Baochen Qiang wrote: >>> > > [...] > >>>> In addition, frequently I can see below AER warnings: >>>> >>>> [ 280.383143] aer_ratelimit: 30 callbacks suppressed >>>> [ 280.383151] pcieport 0000:00:1c.0: AER: Correctable error message received from >>>> 0000:00:1c.0 >>>> [ 280.383177] pcieport 0000:00:1c.0: PCIe Bus Error: severity=Correctable, type=Data Link >>>> Layer, (Transmitter ID) >>>> [ 280.383184] pcieport 0000:00:1c.0: device [8086:7ab8] error status/mask=00001000/00002000 >>>> [ 280.383193] pcieport 0000:00:1c.0: [12] Timeout >>>> >>> >>> I don't see any AER errors either. >> >> My WLAN chip is attached via a PCIe-to-M.2 adapter, maybe some hardware issue? However I >> never saw them until your changes applied. > > It'd be useful to know whether that's a Qualcomm platform running > an upstream-ish kernel, or some other host - we've had platform- > specific issues in the past and the necessary margining/tuning presets > were only introduced recently It is an Intel based desktop, so not a Qualcomm platform. But it is indeed an upstream kernel: https://git.kernel.org/pub/scm/linux/kernel/git/ath/ath.git > > Konrad