[Bug 1818140] [NEW] Kernel module race condition during bluetooth discovery

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kobject_add_internal_failed for hci0:11 with --EEXIST, don't try to
register things with the same name in the same directory

This issue is about kernel - it shouldn't rely on state of unrealiable
propertary drivers. Sometimes rmmod all bluetooth modules helps,
sometimes restart is just faster.

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: bluetooth (not installed)
ProcVersionSignature: Ubuntu 4.15.0-46.49-generic 4.15.18
Uname: Linux 4.15.0-46-generic x86_64
NonfreeKernelModules: wl
ApportVersion: 2.20.9-0ubuntu7.6
Architecture: amd64
CurrentDesktop: ubuntu:GNOME
Date: Thu Feb 28 21:13:21 2019
InstallationDate: Installed on 2015-05-08 (1392 days ago)
InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422)
InterestingModules: btusb rfcomm bnep bluetooth
MachineType: Dell Inc. XPS 13 9343
ProcEnviron:
 TERM=xterm-256color
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=pl_PL.UTF-8
 SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.15.0-46-generic root=/dev/mapper/ubuntu--vg-root ro crashkernel=384M-:128M quiet splash log_buf_len=1M crashkernel=384M-:128M
SourcePackage: bluez
UpgradeStatus: Upgraded to bionic on 2018-08-26 (185 days ago)
dmi.bios.date: 09/27/2018
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A18
dmi.board.name: 09K8G1
dmi.board.vendor: Dell Inc.
dmi.board.version: A02
dmi.chassis.type: 9
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvrA18:bd09/27/2018:svnDellInc.:pnXPS139343:pvr:rvnDellInc.:rn09K8G1:rvrA02:cvnDellInc.:ct9:cvr:
dmi.product.name: XPS 13 9343
dmi.sys.vendor: Dell Inc.
hciconfig:
 hci0: Type: Primary Bus: USB
  BD Address: 34:68:95:ED:83:EA ACL MTU: 1021:8 SCO MTU: 64:1
  UP RUNNING PSCAN
  RX bytes:1283292 acl:65502 sco:1441 events:1266 errors:0
  TX bytes:360374 acl:522 sco:1436 commands:565 errors:0

** Affects: linux (Ubuntu)
Importance: Undecided
Status: Incomplete


** Tags: amd64 apport-bug bionic
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Kernel module race condition during bluetooth discovery
https://bugs.launchpad.net/bugs/1818140
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