New: New (useless?) warning messages from BlueTooth in kernel 5.17
https://bugzilla.kernel.org/show_bug.cgi?id=215713
Bug ID: 215713
Summary: New (useless?) warning messages from BlueTooth in
kernel 5.17
Product: Drivers
Version: 2.5
Kernel Version: 5.17
Hardware: x86-64
OS: Linux
Tree: Mainline
Status: NEW
Severity: low
Priority: P1
Component: Bluetooth
Assignee: [email protected]
Reporter: [email protected]
Regression: NoI've just upgraded from 5.15.30 to 5.17 and now upon pairing my BT headphones I see brand new warning messages I've never seen before:
Bluetooth: hci0: unexpected event 0xff length: 25 > 0
Bluetooth: hci0: unexpected event 0xff length: 4 > 0
I wonder if it's a kernel bug or it's a valid message.
The BT headphones work without any issues though.
The device is 8087:0025 Intel Corp. Wireless-AC 9260 Bluetooth Adapter.
# lsmod | grep bt btusb 40960 0 btbcm 20480 1 btusb btintel 32768 1 btusb bluetooth 471040 52 btintel,btbcm,bnep,btusb,rfcomm
# dmesg -t | egrep -i "bt|blue" Bluetooth: Core ver 2.22 NET: Registered PF_BLUETOOTH protocol family Bluetooth: HCI device and connection manager initialized Bluetooth: HCI socket layer initialized Bluetooth: L2CAP socket layer initialized Bluetooth: SCO socket layer initialized usbcore: registered new interface driver btusb Bluetooth: hci0: Found device firmware: intel/ibt-18-16-1.sfi Bluetooth: hci0: Boot Address: 0x40800 Bluetooth: hci0: Firmware Version: 86-46.21 Bluetooth: hci0: Firmware already loaded Bluetooth: BNEP (Ethernet Emulation) ver 1.3 Bluetooth: BNEP socket layer initialized Bluetooth: RFCOMM TTY layer initialized Bluetooth: RFCOMM socket layer initialized Bluetooth: RFCOMM ver 1.11 Bluetooth: hci0: unexpected event 0xff length: 25 > 0 Bluetooth: hci0: unexpected event 0xff length: 4 > 0
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[Bug 215713] New (useless?) warning messages from BlueTooth in kernel 5.17
https://bugzilla.kernel.org/show_bug.cgi?id=215713
Artem S. Tashkinov ([email protected]) changed:
What |Removed |Added
----------------------------------------------------------------------------
Regression|No |Yes
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[Bug 215713] New (useless?) warning messages from BlueTooth in kernel 5.17
In reply to [email protected]https://bugzilla.kernel.org/show_bug.cgi?id=215713
Luiz Von Dentz ([email protected]) changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |[email protected]
--- Comment #1 from Luiz Von Dentz ([email protected]) ---
https://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next.git/commit/net/bluetooth/hci_event.c?id=314d8cd2787418c5ac6b02035c344644f47b292b
It haven't made to 5.17 though but it is already fixed in bluetooth-next.
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[Bug 215713] New (useless?) warning messages from BlueTooth in kernel 5.17
In reply to [email protected]https://bugzilla.kernel.org/show_bug.cgi?id=215713
--- Comment #2 from Artem S. Tashkinov ([email protected]) --- (In reply to Luiz Von Dentz from comment #1)
Quoted 4 lines
https://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next.git/
commit/net/bluetooth/hci_event.c?id=314d8cd2787418c5ac6b02035c344644f47b292bIt haven't made to 5.17 though but it is already fixed in bluetooth-next.
I'm not sure what to make of this patch (don't quite understand the code - error logging looks to be the same regardless albeit it's rate limited) - I hope to see it applied to future stable releases.
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[Bug 215713] New (useless?) warning messages from BlueTooth in kernel 5.17
In reply to [email protected]https://bugzilla.kernel.org/show_bug.cgi?id=215713
--- Comment #3 from Luiz Von Dentz ([email protected]) --- (In reply to Artem S. Tashkinov from comment #2)
Quoted 11 lines
(In reply to Luiz Von Dentz from comment #1)
Quoted 1 line
https://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next.git/
Quoted 1 line
commit/net/bluetooth/hci_event.c?id=314d8cd2787418c5ac6b02035c344644f47b292b
Quoted 2 lines
It haven't made to 5.17 though but it is already fixed in bluetooth-next.
I'm not sure what to make of this patch (don't quite understand the code - error logging looks to be the same regardless albeit it's rate limited) - I hope to see it applied to future stable releases.
It does switch to HCI_EV_VENDOR (0xff) to be variable size so it won't be triggering the error, the rate limite is just a safeguard in case some other event start spamming.
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[Bug 215713] New (useless?) warning messages from BlueTooth in kernel 5.17
In reply to [email protected]https://bugzilla.kernel.org/show_bug.cgi?id=215713
Artem S. Tashkinov ([email protected]) changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution|--- |CODE_FIXSignature · 4 lines
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