Hi Marcel, > On Oct 4, 2018, at 2:25 AM, Marcel Holtmann <mar...@holtmann.org> wrote: > > Hi Kai-Heng, > >>> I think Canonical were facing some wifi fw load error from some 8260 >>> earlier module during the BT still loading the fw. >>> I believe we had later 8260 sku that fixed this issue. >> >> But there are already 8260 that is affected by this bug in the wild. >> >> Search "Bluetooth: hci0: Failed to send firmware data (-38)” and there are >> lots of user are affected. > > which SKUs are these actually. What are the initial details about the boot > loader. For the Bluetooth side, you should be able to grab them from dmesg or > by running btmon.
Here’s the dmesg | grep Bluetooth: [ 6.086600] Bluetooth: Core ver 2.22 [ 6.086618] Bluetooth: HCI device and connection manager initialized [ 6.086621] Bluetooth: HCI socket layer initialized [ 6.086625] Bluetooth: L2CAP socket layer initialized [ 6.086632] Bluetooth: SCO socket layer initialized [ 6.107794] Bluetooth: hci0: Bootloader revision 0.0 build 2 week 52 2014 [ 6.112803] Bluetooth: hci0: Device revision is 5 [ 6.112805] Bluetooth: hci0: Secure boot is enabled [ 6.112805] Bluetooth: hci0: OTP lock is enabled [ 6.112806] Bluetooth: hci0: API lock is enabled [ 6.112807] Bluetooth: hci0: Debug lock is disabled [ 6.112808] Bluetooth: hci0: Minimum firmware build 1 week 10 2014 [ 6.115231] Bluetooth: hci0: Found device firmware: intel/ibt-11-5.sfi [ 6.210353] Bluetooth: hci0: Failed to send firmware data (-38) [ 8.153357] Bluetooth: BNEP (Ethernet Emulation) ver 1.3 [ 8.153358] Bluetooth: BNEP filters: protocol multicast [ 8.153362] Bluetooth: BNEP socket layer initialized [ 13.563790] Bluetooth: hci0: Bootloader revision 0.0 build 2 week 52 2014 [ 13.568806] Bluetooth: hci0: Device revision is 5 [ 13.568808] Bluetooth: hci0: Secure boot is enabled [ 13.568809] Bluetooth: hci0: OTP lock is enabled [ 13.568810] Bluetooth: hci0: API lock is enabled [ 13.568811] Bluetooth: hci0: Debug lock is disabled [ 13.568813] Bluetooth: hci0: Minimum firmware build 1 week 10 2014 [ 13.569072] Bluetooth: hci0: Found device firmware: intel/ibt-11-5.sfi [ 15.220327] Bluetooth: hci0: Waiting for firmware download to complete [ 15.220805] Bluetooth: hci0: Firmware loaded in 1618764 usecs [ 15.220877] Bluetooth: hci0: Waiting for device to boot [ 15.233031] Bluetooth: hci0: Device booted in 11881 usecs [ 15.233274] Bluetooth: hci0: Found Intel DDC parameters: intel/ibt-11-5.ddc [ 15.236794] Bluetooth: hci0: Applying Intel DDC parameters completed [ 17.232497] Bluetooth: RFCOMM TTY layer initialized [ 17.232505] Bluetooth: RFCOMM socket layer initialized [ 17.232510] Bluetooth: RFCOMM ver 1.11 I’ll file a Bugzilla if we need full dmesg as attachment. > > So I am not in favor of this kind of hack and creating dependencies between > drivers. If you only have a hammer, then everything looks like a nail. And > this is a massive hammer trying to squash everything. This problem needs to > be debugged. And this starts by providing affected SKU information and > firmware information. So get the details about the SKU and its Bluetooth and > WiFi boot loaders. Apology for the hammer approach, which is the best way I can think of. Of course it’s much better if we can solve this without the ugly hack. Kai-Heng > > Regards > > Marcel >
