Bug 198451

Summary:	Error message: Bluetooth: hci0 killing stalled connection
Product:	Drivers	Reporter:	Freek de Kruijf (f.de.kruijf)
Component:	Bluetooth	Assignee:	linux-bluetooth (linux-bluetooth)
Status:	RESOLVED OBSOLETE
Severity:	normal	CC:	arek.burdach, leho, ostroffjh
Priority:	P1
Hardware:	ARM
OS:	Linux
Kernel Version:	4.4.104	Subsystem:
Regression:	No	Bisected commit-id:

Description Freek de Kruijf 2018-01-11 17:05:24 UTC

After a while running the application is unable to start a connection via bluetooth. The journal shows several error messages, but also the one in the subject. Other messages are:
kernel: Bluetooth: hci0 link tx timeout
kernel: Bluetooth: hci0 killing stalled connection 00:80:25:a5:a1:33
kernel: Bluetooth: unknown link type 108
kernel: Bluetooth: hci0 command 0x041f tx timeout
kernel: Bluetooth: hci0 command 0x0406 tx timeout
kernel: Bluetooth: hci0 command 0x040a tx timeout
kernel: Bluetooth: hci0 link tx timeout
kernel: Bluetooth: hci0 killing stalled connection 00:80:25:a5:a1:33
kernel: Bluetooth: hci0 link tx timeout
kernel: Bluetooth: hci0 killing stalled connection 00:80:25:a5:a1:33

This is at the begin. Hereafter only the following messages appear:

kernel: Bluetooth: hci0 link tx timeout
kernel: Bluetooth: hci0 killing stalled connection 00:80:25:a5:a1:33

lsusb shows:
Bus 001 Device 008: ID 0a5c:2148 Broadcom Corp. BCM92046DG-CL1ROM Bluetooth 2.1 Adapter
Bus 001 Device 007: ID 0a5c:4503 Broadcom Corp. Mouse (Boot Interface Subclass)
Bus 001 Device 006: ID 0a5c:4502 Broadcom Corp. Keyboard (Boot Interface Subclass)
Bus 001 Device 005: ID 0a5c:4500 Broadcom Corp. BCM2046B1 USB 2.0 Hub (part of BCM2046 Bluetooth)
Bus 001 Device 003: ID 0424:ec00 Standard Microsystems Corp. SMSC9512/9514 Fast Ethernet Adapter
Bus 001 Device 002: ID 0424:9514 Standard Microsystems Corp. 
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

bluez-firmware version 1.2-152.1 is used

Comment 1 Freek de Kruijf 2021-10-05 09:26:11 UTC

Apparently this bug does not appear anymore.