Hi Chris, On Fri, Dec 31, 2021 at 2:35 AM Chris Clayton <chris2553@xxxxxxxxxxxxxx> wrote: > > On 30/12/2021 09:21, Chris Clayton wrote: > > Hi, > > > > I pulled the latest changes into my clone of Linus' tree and built and installed the kernel. (git describe gives > > v5.16-rc7-9-ge7c124bd0463). I'm seeing errors reported by the bluetooth subsystem that i don't see in 5.15.12 or 5.10.89 > > > > The problem seems to occur twice during system startup and on each occasion I see a batch of identical error messages: > > > > [ 3.980822] Bluetooth: hci0: Failed to read codec capabilities (-56) > > [ 3.982812] Bluetooth: hci0: Failed to read codec capabilities (-56) > > [ 3.984812] Bluetooth: hci0: Failed to read codec capabilities (-56) > > [ 3.986608] Bluetooth: hci0: Failed to read codec capabilities (-56) > > [ 3.987621] Bluetooth: hci0: Failed to read codec capabilities (-56) > > [ 3.988606] Bluetooth: hci0: Failed to read codec capabilities (-56) > > [ 3.989650] Bluetooth: hci0: Failed to read codec capabilities (-56) > > > > Sorry, I should have said that despite the above errors, my bluetooth devices still work fine. Would be great to have the HCI trace (btmon). @Kiran K Is this to be expected? > > > A full dmesg log is attached. I've also attached Two files containing the output from "lsusb -v" run on 5.10.89 and > > 5.16-rc7. > > > > Please let me know if I can provide any other diagnostic information or test any patches. You'll need to cc me on > > replies because I'm not subscribed to LKML or linux-bluetooth. > > > > Thanks -- Luiz Augusto von Dentz
