Have this bug with my Bluetooth mouse, aftere resume-wake and mouse activity. Workaround: before mouse activity turn off bluetooth connection via GUI, so bluetooth status icon does not have small padlock in it.

I tested issue with trusty and vivid kernels.

$ uname -a
Linux ilya-vaio 3.19.0-18-generic #18~14.04.1-Ubuntu SMP Wed May 20 09:38:33 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux

[ 2158.421830] ------------[ cut here ]------------
[ 2158.421850] WARNING: CPU: 0 PID: 449 at /build/buildd/linux-lts-vivid-3.19.0/fs/sysfs/dir.c:31 sysfs_warn_dup+0x68/0x80()
[ 2158.421854] sysfs: cannot create duplicate filename '/devices/pci0000:00/0000:00:1a.0/usb3/3-1/3-1.2/3-1.2:1.0/bluetooth/hci0/hci0:
21'
[ 2158.421857] Modules linked in: hid_generic(E) hidp(E) hid xt_addrtype xt_conntrack ipt_MASQUERADE nf_nat_masquerade_ipv4 iptable_na
t nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 iptable_filter ip_tables x_tables nf_nat nf_conntrack bridge stp llc aufs(E) ctr ccm rfcomm(E) bnep(E) nls_iso8859_1 snd_hda_codec_hdmi(E) snd_hda_codec_realtek(E) snd_hda_codec_generic(E) snd_hda_intel(E) snd_hda_controller(E) snd_hda_codec(E) snd_hwdep acer_wmi(E) sparse_keymap(E) snd_pcm intel_rapl(E) snd_seq_midi iosf_mbi snd_seq_midi_event x86_pkg_temp_thermal(E) intel_powerclamp(E) coretemp(E) kvm_intel arc4 kvm crct10dif_pclmul ath9k(E) crc32_pclmul ath9k_common(E) snd_rawmidi ghash_clmulni_intel uvcvideo(E) ath9k_hw(E) cryptd videobuf2_vmalloc(E) videobuf2_memops(E) ath(E) videobuf2_core(E) v4l2_common(E) videodev(E) media(E) joydev mac80211(E) rtsx_pci_ms(E) serio_raw ath3k(E) snd_seq memstick(E) btusb(E) bluetooth(E) cfg80211(E) snd_seq_device lpc_ich(E) snd_timer wmi(E) snd sony_laptop(E) soundcore shpchp(E) mac_hid(E) i915(E) video drm_kms_helper(E) drm(E) mei_me(E) i2c_algo_bit(E) mei(E) parport_pc ppdev lp parport rtsx_pci_sdmmc(E) psmouse ahci libahci r8169(E) mii rtsx_pci(E)
[ 2158.422000] CPU: 0 PID: 449 Comm: kworker/u17:2 Tainted: G            E  3.19.0-18-generic #18~14.04.1-Ubuntu
[ 2158.422003] Hardware name: Sony Corporation SVT1312L1RS/VAIO, BIOS R0140D4 08/23/2012
[ 2158.422039] Workqueue: hci0 hci_rx_work [bluetooth]
[ 2158.422044]  ffffffff81ab6080 ffff8802427aba58 ffffffff817adfa3 0000000000000000
[ 2158.422050]  ffff8802427abaa8 ffff8802427aba98 ffffffff81074c2a 0000000000000206
[ 2158.422056]  ffff880244b13000 ffff88024482df48 ffff8800a6c2a870 ffff88024416cae8
[ 2158.422063] Call Trace:
[ 2158.422077]  [<ffffffff817adfa3>] dump_stack+0x45/0x57
[ 2158.422085]  [<ffffffff81074c2a>] warn_slowpath_common+0x8a/0xc0
[ 2158.422091]  [<ffffffff81074ca6>] warn_slowpath_fmt+0x46/0x50
[ 2158.422098]  [<ffffffff81260ee8>] ? kernfs_path+0x48/0x60
[ 2158.422105]  [<ffffffff81264858>] sysfs_warn_dup+0x68/0x80
[ 2158.422111]  [<ffffffff812648fe>] sysfs_create_dir_ns+0x8e/0xa0
[ 2158.422123]  [<ffffffff813a8afe>] kobject_add_internal+0xce/0x3f0
[ 2158.422130]  [<ffffffff813a9010>] kobject_add+0x60/0xb0
[ 2158.422146]  [<ffffffff814f1925>] device_add+0x125/0x650
[ 2158.422152]  [<ffffffff814f0041>] ? dev_set_name+0x41/0x50
[ 2158.422191]  [<ffffffffc069b7f1>] hci_conn_add_sysfs+0x51/0xd0 [bluetooth]
[ 2158.422224]  [<ffffffffc0689392>] hci_event_packet+0x1962/0x2f70 [bluetooth]
[ 2158.422234]  [<ffffffff810aa6d2>] ? dequeue_entity+0x142/0x5c0
[ 2158.422240]  [<ffffffff810da643>] ? internal_add_timer+0x63/0x80
[ 2158.422247]  [<ffffffff810aaf9e>] ? dequeue_task_fair+0x44e/0x660
[ 2158.422275]  [<ffffffffc0674a78>] hci_rx_work+0x1b8/0x3d0 [bluetooth]
[ 2158.422283]  [<ffffffff810ac0df>] ? put_prev_task_fair+0x2f/0x50
[ 2158.422291]  [<ffffffff8108d94f>] process_one_work+0x14f/0x400
[ 2158.422296]  [<ffffffff8108e0e8>] worker_thread+0x118/0x510
[ 2158.422303]  [<ffffffff8108dfd0>] ? rescuer_thread+0x3d0/0x3d0
[ 2158.422310]  [<ffffffff810935e2>] kthread+0xd2/0xf0
[ 2158.422317]  [<ffffffff81093510>] ? kthread_create_on_node+0x1c0/0x1c0
[ 2158.422325]  [<ffffffff817b58d8>] ret_from_fork+0x58/0x90
[ 2158.422332]  [<ffffffff81093510>] ? kthread_create_on_node+0x1c0/0x1c0
[ 2158.422336] ---[ end trace 2a7dfc7ee14f5ccc ]---
[ 2158.422341] ------------[ cut here ]------------
[ 2158.422349] WARNING: CPU: 0 PID: 449 at /build/buildd/linux-lts-vivid-3.19.0/lib/kobject.c:240 kobject_add_internal+0x284/0x3f0()
[ 2158.422353] kobject_add_internal failed for hci0:21 with -EEXIST, don't try to register things with the same name in the same directory.
[ 2158.422355] Modules linked in: hid_generic(E) hidp(E) hid xt_addrtype xt_conntrack ipt_MASQUERADE nf_nat_masquerade_ipv4 iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 iptable_filter ip_tables x_tables nf_nat nf_conntrack bridge stp llc aufs(E) ctr ccm rfcomm(E) bnep(E) nls_iso8859_1 snd_hda_codec_hdmi(E) snd_hda_codec_realtek(E) snd_hda_codec_generic(E) snd_hda_intel(E) snd_hda_controller(E) snd_hda_codec(E) snd_hwdep acer_wmi(E) sparse_keymap(E) snd_pcm intel_rapl(E) snd_seq_midi iosf_mbi snd_seq_midi_event x86_pkg_temp_thermal(E) intel_powerclamp(E) coretemp(E) kvm_intel arc4 kvm crct10dif_pclmul ath9k(E) crc32_pclmul ath9k_common(E) snd_rawmidi ghash_clmulni_intel uvcvideo(E) ath9k_hw(E) cryptd videobuf2_vmalloc(E) videobuf2_memops(E) ath(E) videobuf2_core(E) v4l2_common(E) videodev(E) media(E) joydev mac80211(E) rtsx_pci_ms(E) serio_raw ath3k(E) snd_seq memstick(E) btusb(E) bluetooth(E) cfg80211(E) snd_seq_device lpc_ich(E) snd_timer wmi(E) snd sony_laptop(E) soundcore shpchp(E) mac_hid(E) i915(E) video drm_kms_helper(E) drm(E) mei_me(E) i2c_algo_bit(E) mei(E) parport_pc ppdev lp parport rtsx_pci_sdmmc(E) psmouse ahci libahci r8169(E) mii rtsx_pci(E)
[ 2158.422468] CPU: 0 PID: 449 Comm: kworker/u17:2 Tainted: G        W   E  3.19.0-18-generic #18~14.04.1-Ubuntu
[ 2158.422471] Hardware name: Sony Corporation SVT1312L1RS/VAIO, BIOS R0140D4 08/23/2012
[ 2158.422494] Workqueue: hci0 hci_rx_work [bluetooth]
[ 2158.422497]  ffffffff81ad2668 ffff8802427abab8 ffffffff817adfa3 0000000000000000
[ 2158.422502]  ffff8802427abb08 ffff8802427abaf8 ffffffff81074c2a ffff8802427abaf8
[ 2158.422508]  ffff88024416caf8 00000000ffffffef ffff880242c27b50 ffff88024416cae8
[ 2158.422514] Call Trace:
[ 2158.422522]  [<ffffffff817adfa3>] dump_stack+0x45/0x57
[ 2158.422528]  [<ffffffff81074c2a>] warn_slowpath_common+0x8a/0xc0
[ 2158.422534]  [<ffffffff81074ca6>] warn_slowpath_fmt+0x46/0x50
[ 2158.422542]  [<ffffffff813a8cb4>] kobject_add_internal+0x284/0x3f0
[ 2158.422550]  [<ffffffff813a9010>] kobject_add+0x60/0xb0
[ 2158.422561]  [<ffffffff814f1925>] device_add+0x125/0x650
[ 2158.422567]  [<ffffffff814f0041>] ? dev_set_name+0x41/0x50
[ 2158.422601]  [<ffffffffc069b7f1>] hci_conn_add_sysfs+0x51/0xd0 [bluetooth]
[ 2158.422632]  [<ffffffffc0689392>] hci_event_packet+0x1962/0x2f70 [bluetooth]
[ 2158.422640]  [<ffffffff810aa6d2>] ? dequeue_entity+0x142/0x5c0
[ 2158.422646]  [<ffffffff810da643>] ? internal_add_timer+0x63/0x80
[ 2158.422653]  [<ffffffff810aaf9e>] ? dequeue_task_fair+0x44e/0x660
[ 2158.422679]  [<ffffffffc0674a78>] hci_rx_work+0x1b8/0x3d0 [bluetooth]
[ 2158.422687]  [<ffffffff810ac0df>] ? put_prev_task_fair+0x2f/0x50
[ 2158.422693]  [<ffffffff8108d94f>] process_one_work+0x14f/0x400
[ 2158.422699]  [<ffffffff8108e0e8>] worker_thread+0x118/0x510
[ 2158.422705]  [<ffffffff8108dfd0>] ? rescuer_thread+0x3d0/0x3d0
[ 2158.422712]  [<ffffffff810935e2>] kthread+0xd2/0xf0
[ 2158.422719]  [<ffffffff81093510>] ? kthread_create_on_node+0x1c0/0x1c0
[ 2158.422726]  [<ffffffff817b58d8>] ret_from_fork+0x58/0x90
[ 2158.422732]  [<ffffffff81093510>] ? kthread_create_on_node+0x1c0/0x1c0
[ 2158.422736] ---[ end trace 2a7dfc7ee14f5ccd ]---
[ 2158.422743] Bluetooth: Failed to register connection device
NetworkManager[879]: <info> (wlan0): IP6 addrconf timed out or failed.
NetworkManager[879]: <info> Activation (wlan0) Stage 4 of 5 (IPv6 Configure Timeout) scheduled...
NetworkManager[879]: <info> Activation (wlan0) Stage 4 of 5 (IPv6 Configure Timeout) started...
NetworkManager[879]: <info> Activation (wlan0) Stage 4 of 5 (IPv6 Configure Timeout) complete.
wpa_supplicant[1040]: wlan0: CTRL-EVENT-SCAN-STARTED 
NetworkManager[879]: <warn> nl_recvmsgs() error: (-33) Dump inconsistency detected, interrupted
[ 2183.405211] NMI watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [kworker/u17:0:440]
[ 2183.405216] Modules linked in: hid_generic(E) hidp(E) hid xt_addrtype xt_conntrack ipt_MASQUERADE nf_nat_masquerade_ipv4 iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 iptable_filter ip_tables x_tables nf_nat nf_conntrack bridge stp llc aufs(E) ctr ccm rfcomm(E) bnep(E) nls_iso8859_1 snd_hda_codec_hdmi(E) snd_hda_codec_realtek(E) snd_hda_codec_generic(E) snd_hda_intel(E) snd_hda_controller(E) snd_hda_codec(E) snd_hwdep acer_wmi(E) sparse_keymap(E) snd_pcm intel_rapl(E) snd_seq_midi iosf_mbi snd_seq_midi_event x86_pkg_temp_thermal(E) intel_powerclamp(E) coretemp(E) kvm_intel arc4 kvm crct10dif_pclmul ath9k(E) crc32_pclmul ath9k_common(E) snd_rawmidi ghash_clmulni_intel uvcvideo(E) ath9k_hw(E) cryptd videobuf2_vmalloc(E) videobuf2_memops(E) ath(E) videobuf2_core(E) v4l2_common(E) videodev(E) media(E) joydev mac80211(E) rtsx_pci_ms(E) serio_raw ath3k(E) snd_seq memstick(E) btusb(E) bluetooth(E) cfg80211(E) snd_seq_device lpc_ich(E) snd_timer wmi(E) snd sony_laptop(E) soundcore shpchp(E) mac_hid(E) i915(E) video drm_kms_helper(E) drm(E) mei_me(E) i2c_algo_bit(E) mei(E) parport_pc ppdev lp parport rtsx_pci_sdmmc(E) psmouse ahci libahci r8169(E) mii rtsx_pci(E)
[ 2183.405283] CPU: 0 PID: 440 Comm: kworker/u17:0 Tainted: G        W   E  3.19.0-18-generic #18~14.04.1-Ubuntu
[ 2183.405285] Hardware name: Sony Corporation SVT1312L1RS/VAIO, BIOS R0140D4 08/23/2012
[ 2183.405301] Workqueue: hci0 hci_rx_work [bluetooth]
[ 2183.405304] task: ffff8802429709d0 ti: ffff8800a9248000 task.ti: ffff8800a9248000
[ 2183.405305] RIP: 0010:[<ffffffff817b559a>]  [<ffffffff817b559a>] _raw_spin_lock+0x2a/0x60
[ 2183.405311] RSP: 0018:ffff8800a924bb70  EFLAGS: 00000206
[ 2183.405313] RAX: 000000000000701a RBX: ffff8800a938aca8 RCX: 000000000000145c
[ 2183.405314] RDX: 00000000000059c0 RSI: 000000000000145c RDI: ffff8802145c5180
[ 2183.405316] RBP: ffff8800a924bb98 R08: 0000000000004d9c R09: 000000018022001b
[ 2183.405317] R10: ffffffff81261386 R11: ffffea0002a4e280 R12: ffffffff811cdda5
[ 2183.405319] R13: ffff8800a924bb08 R14: ffff88024416c800 R15: ffff88024416cae8
[ 2183.405321] FS:  0000000000000000(0000) GS:ffff88024f200000(0000) knlGS:0000000000000000
[ 2183.405323] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 2183.405324] CR2: 00007fc17c5d2f00 CR3: 0000000002c16000 CR4: 00000000001407f0
[ 2183.405326] Stack:
[ 2183.405327]  ffffffff8179e434 ffff8802440a8000 ffff8802440a98e8 ffff880242c27010
[ 2183.405330]  ffff88024416cae8 ffff8800a924bba8 ffffffff8179e4be ffff8800a924bbf8
[ 2183.405333]  ffffffff814f064b ffff8800a924bbc8 ffff8800a9d23ae0 ffff8802440ac000
[ 2183.405335] Call Trace:
[ 2183.405341]  [<ffffffff8179e434>] ? klist_put+0x24/0xa0
[ 2183.405345]  [<ffffffff8179e4be>] klist_del+0xe/0x10
[ 2183.405350]  [<ffffffff814f064b>] device_del+0x6b/0x270
[ 2183.405356]  [<ffffffffc0ba0067>] hid_destroy_device+0x27/0x60 [hid]
[ 2183.405360]  [<ffffffffc0bc2a66>] hidp_session_remove+0x56/0xd0 [hidp]
[ 2183.405380]  [<ffffffffc06a0276>] l2cap_conn_del+0xb6/0x240 [bluetooth]
[ 2183.405395]  [<ffffffffc067d868>] ? hci_update_page_scan+0x48/0x190 [bluetooth]
[ 2183.405412]  [<ffffffffc06a9cad>] l2cap_disconn_cfm+0x2d/0x60 [bluetooth]
[ 2183.405426]  [<ffffffffc0689c16>] hci_event_packet+0x21e6/0x2f70 [bluetooth]
[ 2183.405431]  [<ffffffff810aa6d2>] ? dequeue_entity+0x142/0x5c0
[ 2183.405435]  [<ffffffff810aaf9e>] ? dequeue_task_fair+0x44e/0x660
[ 2183.405447]  [<ffffffffc0674a78>] hci_rx_work+0x1b8/0x3d0 [bluetooth]
[ 2183.405451]  [<ffffffff810ac0df>] ? put_prev_task_fair+0x2f/0x50
[ 2183.405454]  [<ffffffff8108d94f>] process_one_work+0x14f/0x400
[ 2183.405457]  [<ffffffff8108e0e8>] worker_thread+0x118/0x510
[ 2183.405459]  [<ffffffff8108dfd0>] ? rescuer_thread+0x3d0/0x3d0
[ 2183.405463]  [<ffffffff810935e2>] kthread+0xd2/0xf0
[ 2183.405466]  [<ffffffff81093510>] ? kthread_create_on_node+0x1c0/0x1c0
[ 2183.405470]  [<ffffffff817b58d8>] ret_from_fork+0x58/0x90
[ 2183.405473]  [<ffffffff81093510>] ? kthread_create_on_node+0x1c0/0x1c0
[ 2183.405475] Code: 00 0f 1f 44 00 00 b8 00 00 02 00 f0 0f c1 07 89 c2 c1 ea 10 66 39 c2 75 01 c3 89 d1 0f b7 f2 b8 00 80 00 00 eb 0a 0f 1f 00 f3 90 <83> e8 01 74 20 0f b7 17 41 89 d0 41 31 c8 41 81 e0 fe ff 00 00 
...