I'm running a Pi3B under Buster (yes, I know, out of the ark).
4 days ago, for no obvious reason, it started generating the following error, every minute. Errors are being logged in the syslog file.
Jul 21 21:02:20 southwatch kernel: [10116263.760496] brcmfmac: brcmf_escan_timeout: timer expired Jul 21 21:02:20 southwatch kernel: [10116266.320604] brcmfmac: brcmf_sdio_busrxdctl: resumed on timeout Jul 21 21:02:20 southwatch kernel: [10116266.321012] brcmfmac: brcmf_sdio_checkdied: firmware trap in dongle Jul 21 21:02:20 southwatch kernel: [10116266.321023] brcmfmac: brcmf_notify_escan_complete: Scan abort failed
The Pi is using Ethernet rather than WiFi for networking, and there hasn't been any obvious change in performance since this started. There have been no updates done recently.
I became aware of this as I noticed that the daily rsync size was growing for no obvious reason.
Any thoughts ?
Adrian