https://bugzilla.kernel.org/show_bug.cgi?id=199111 Bug ID: 199111 Summary: BCM4324B5: bt connection to paired devices is only established when discovery/scan is enabled Product: Drivers Version: 2.5 Kernel Version: 4.16-rc4 Hardware: All OS: Linux Tree: Mainline Status: NEW Severity: normal Priority: P1 Component: Bluetooth Assignee: linux-bluetooth@xxxxxxxxxxxxxxx Reporter: sassmann@xxxxxxxxxx Regression: No Created attachment 274717 --> https://bugzilla.kernel.org/attachment.cgi?id=274717&action=edit dmesg-4.16-rc4.txt The chip only connects to paired devices when discovery/scanning is enabled. Otherwise connection is never established. Device Info: [ 17.617214] Bluetooth: hci0: BCM: chip id 90 [ 17.620448] Bluetooth: hci0: BCM: features 0x0f [ 17.626236] Bluetooth: hci0: BCM4324B5 root@tpt10:~ > bluetoothctl --version bluetoothctl: 5.48 root@tpt10:~ > hciconfig -a hci0: Type: Primary Bus: UART BD Address: EC:0E:C4:1D:BB:5A ACL MTU: 1021:8 SCO MTU: 64:1 UP RUNNING PSCAN ISCAN INQUIRY RX bytes:3798 acl:0 sco:0 events:332 errors:0 TX bytes:35719 acl:0 sco:0 commands:309 errors:0 Features: 0xbf 0xfe 0xcf 0xfe 0xdb 0xff 0x7b 0x87 Packet type: DM1 DM3 DM5 DH1 DH3 DH5 HV1 HV2 HV3 Link policy: RSWITCH SNIFF Link mode: SLAVE ACCEPT Name: 'localhost.localdomain' Class: 0x0c0110 Service Classes: Rendering, Capturing Device Class: Computer, Handheld HCI Version: 4.0 (0x6) Revision: 0x3492 LMP Version: 4.0 (0x6) Subversion: 0x4606 Manufacturer: Broadcom Corporation (15) [bluetooth]# show Controller EC:0E:C4:1D:BB:5A (public) Name: localhost.localdomain Alias: localhost.localdomain Class: 0x000c0110 Powered: yes Discoverable: yes Pairable: yes UUID: Headset AG (00001112-0000-1000-8000-00805f9b34fb) UUID: Generic Attribute Profile (00001801-0000-1000-8000-00805f9b34fb) UUID: A/V Remote Control (0000110e-0000-1000-8000-00805f9b34fb) UUID: Generic Access Profile (00001800-0000-1000-8000-00805f9b34fb) UUID: PnP Information (00001200-0000-1000-8000-00805f9b34fb) UUID: A/V Remote Control Target (0000110c-0000-1000-8000-00805f9b34fb) UUID: Audio Source (0000110a-0000-1000-8000-00805f9b34fb) UUID: Audio Sink (0000110b-0000-1000-8000-00805f9b34fb) UUID: Headset (00001108-0000-1000-8000-00805f9b34fb) Modalias: usb:v1D6Bp0246d0530 Discovering: yes [Universal Mobile Keyboard]# info C0:33:5E:75:86:AB Device C0:33:5E:75:86:AB (public) Name: Universal Mobile Keyboard Alias: Universal Mobile Keyboard Class: 0x00000540 Icon: input-keyboard Paired: yes Trusted: yes Blocked: no Connected: yes LegacyPairing: no UUID: Service Discovery Serve.. (00001000-0000-1000-8000-00805f9b34fb) UUID: Human Interface Device... (00001124-0000-1000-8000-00805f9b34fb) UUID: PnP Information (00001200-0000-1000-8000-00805f9b34fb) Modalias: usb:v045Ep0802d0099 The following warning is printed on boot: [ 17.231279] ====================================================== [ 17.234231] WARNING: possible circular locking dependency detected [ 17.237170] 4.16.0-0.rc4.git3.1.fc27.x86_64 #1 Not tainted [ 17.240115] ------------------------------------------------------ [ 17.243049] kworker/u8:1/74 is trying to acquire lock: [ 17.245962] (bcm_device_lock){+.+.}, at: [<00000000acdc9be0>] bcm_recv+0x68/0xe0 [hci_uart] [ 17.248943]· but task is already holding lock: [ 17.254812] (&buf->lock){+.+.}, at: [<0000000057d725d1>] flush_to_ldisc+0x20/0xa0 [ 17.257845]· which lock already depends on the new lock. Attaching full dmesg. -- You are receiving this mail because: You are the assignee for the bug.-- To unsubscribe from this list: send the line "unsubscribe linux-bluetooth" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
