https://bugzilla.kernel.org/show_bug.cgi?id=210775 Bug ID: 210775 Summary: hci0 reset with multiple clients Product: Drivers Version: 2.5 Kernel Version: 4.14.79 Hardware: ARM OS: Linux Tree: Mainline Status: NEW Severity: high Priority: P1 Component: Bluetooth Assignee: linux-bluetooth@xxxxxxxxxxxxxxx Reporter: gnulux@xxxxxxxxx Regression: No Created attachment 294217 --> https://bugzilla.kernel.org/attachment.cgi?id=294217&action=edit bluetoothd debug mode poutput Hi all I need support in bluez. My configuration is : Linux raspberry (stretch) Kernel : 4.14.79 Bluez: 5.43-2+rpt2+deb9u2 lsusb: us 001 Device 008: ID 0920:5550 Echelon Co. Bus 001 Device 013: ID 04b4:f901 Cypress Semiconductor Corp. ← bluetooth device Bus 001 Device 012: ID 072f:223e Advanced Card Systems, Ltd Bus 001 Device 011: ID 1a40:0101 Terminus Technology Inc. Hub Bus 001 Device 006: ID 0424:ec00 Standard Microsystems Corp. SMSC9512/9514 Fast Ethernet Adapter Bus 001 Device 004: ID 0424:9514 Standard Microsystems Corp. SMC9514 Hub 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. SMC9514 Hub Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub I ‘m running bluez 5.43 on raspbian with an external usb bluetooth device (but i have the same behaviour with embedded bluetooth device bcm43xx with uart) . I’ve developed a server that initiates and establishes sessions with a client application on a smartphone. it works well but recently I noticed a weird issue . When the smartphone is connected and I connect another device or simply run gatttool -d 00:16:A4:4C:B9:37 -char-desc on my server , the hci0 device disappears then comes back again. My application on the server crash as it can no more access to the device In kern.log : Dec 18 12:33:56 box-121 kernel: [ 37.927261] usb 1-1.4.1: usbfs: process 1083 (node /opt/filln) did not claim interface 0 before use Dec 18 12:38:45 box-121 kernel: [ 327.673582] Bluetooth: hci0 command 0x200c tx timeout Dec 18 12:38:47 box-121 kernel: [ 328.908625] usb 1-1.4.4: USB disconnect, device number 9 Dec 18 12:38:49 box-121 kernel: [ 330.743618] usb 1-1.4.4: new full-speed USB device number 10 using dwc_otg Dec 18 12:38:49 box-121 kernel: [ 330.898584] usb 1-1.4.4: New USB device found, idVendor=04b4, idProduct=f901 Dec 18 12:38:49 box-121 kernel: [ 330.898597] usb 1-1.4.4: New USB device strings: Mfr=1, Product=2, SerialNumber=3 With bluetoothd in debug mode in attachement I’m wondering why I lose the device when another device tries to connect and discuss with my server. Any suggestions ? -- You may reply to this email to add a comment. You are receiving this mail because: You are the assignee for the bug.
