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[Launchpad Bug Tracker <1400215@xxxxxxxxxxxxxxxxxx>]

This bug was fixed in the package linux - 3.13.0-48.80

---------------
linux (3.13.0-48.80) trusty; urgency=low

  [ Luis Henriques ]

  * Release Tracking Bug
    - LP: #1431263
  * Merged back all changes that were in Ubuntu-3.13.0-47.78

  [ Upstream Kernel Changes ]

  * xfs: remote attribute overwrite causes transaction overrun
    - LP: #1429821
    - CVE-2015-0274

linux (3.13.0-47.78) trusty; urgency=low

  [ Seth Forshee ]

  * Release Tracking Bug
    - LP: #1427733

  [ Rodrigo Vivi ]

  * SAUCE: drm/i915: Fix and clean BDW PCH identification
    - LP: #1423292
  * SAUCE: drm/i915: BDW Fix Halo PCI IDs marked as ULT.
    - LP: #1423292

  [ Upstream Kernel Changes ]

  * ext4: prevent bugon on race between write/fcntl
  * Bluetooth: ath3k: workaround the compatibility issue with xHCI
    controller
    - LP: #1400215
  * openvswitch: Silence RCU lockdep checks from flow lookup.
    - LP: #1408972
  * openvswitch: Use exact lookup for flow_get and flow_del.
    - LP: #1408972
  * splice: Apply generic position and size checks to each write
    - LP: #1416498
    - CVE-2014-7822
  * ALSA: hda - enable mute led quirk for one more hp machine.
    - LP: #1410704
  * crypto: prefix module autoloading with "crypto-"
    - LP: #1427438
  * crypto: add missing crypto module aliases
    - LP: #1427438
  * crypto: include crypto- module prefix in template
    - LP: #1427438
  * crypto: crc32c - add missing crypto module alias
    - LP: #1427438
  * drm/i915: Invalidate media caches on gen7
    - LP: #1427438
  * drm/i915: Force the CS stall for invalidate flushes
    - LP: #1427438
  * audit: restore AUDIT_LOGINUID unset ABI
    - LP: #1427438
  * parisc: fix out-of-register compiler error in ldcw inline assembler
    function
    - LP: #1427438
  * kvm: x86: drop severity of "generation wraparound" message
    - LP: #1427438
  * udf: Verify i_size when loading inode
    - LP: #1427438
  * udf: Verify symlink size before loading it
    - LP: #1427438
  * udf: Check path length when reading symlink
    - LP: #1427438
  * udf: Check component length before reading it
    - LP: #1427438
  * crypto: af_alg - fix backlog handling
    - LP: #1427438
  * ASoC: dwc: Ensure FIFOs are flushed to prevent channel swap
    - LP: #1427438
  * video/logo: prevent use of logos after they have been freed
    - LP: #1427438
  * video/fbdev: fix defio's fsync
    - LP: #1427438
  * Add USB_EHCI_EXYNOS to multi_v7_defconfig
    - LP: #1427438
  * drm/i915: Swap primary planes on gen2 for FBC
    - LP: #1427438
  * drm/i915: Don't swap planes on 830M
    - LP: #1427438
  * drm/i915: Don't call intel_prepare_page_flip() multiple times on gen2-4
    - LP: #1427438
  * x86, vdso: Use asm volatile in __getcpu
    - LP: #1427438
  * drivers: net: cpsw: enable interrupts after napi enable and clearing
    previous interrupts
    - LP: #1427438
  * net: ethernet: cpsw: fix hangs with interrupts
    - LP: #1427438
  * ALSA: hda - Fix wrong gpio_dir & gpio_mask hint setups for IDT/STAC
    codecs
    - LP: #1427438
  * drm/radeon: KV has three PPLLs (v2)
    - LP: #1427438
  * drm/radeon: properly filter DP1.2 4k modes on non-DP1.2 hw
    - LP: #1427438
  * virtio_pci: defer kfree until release callback
    - LP: #1427438
  * virtio_pci: document why we defer kfree
    - LP: #1427438
  * mm: propagate error from stack expansion even for guard page
    - LP: #1427438
  * ALSA: hda - Add new GPU codec ID to snd-hda
    - LP: #1427438
  * ALSA: hda - Add new GPU codec ID 0x10de0070 to snd-hda
    - LP: #1427438
  * ALSA: hda - Add new GPU codec ID 0x10de0072 to snd-hda
    - LP: #1427438
  * vfio-pci: Fix the check on pci device type in vfio_pci_probe()
    - LP: #1427438
  * mm: prevent endless growth of anon_vma hierarchy
    - LP: #1427438
  * mm: protect set_page_dirty() from ongoing truncation
    - LP: #1427438
  * mm, vmscan: prevent kswapd livelock due to pfmemalloc-throttled process
    being killed
    - LP: #1427438
  * HID: roccat: potential out of bounds in pyra_sysfs_write_settings()
    - LP: #1427438
  * mm: Don't count the stack guard page towards RLIMIT_STACK
    - LP: #1427438
  * mm: fix corner case in anon_vma endless growing prevention
    - LP: #1427438
  * usb: musb: stuff leak of struct usb_hcd
    - LP: #1427438
  * usb: gadget: udc: atmel: change setting for DMA
    - LP: #1427438
  * usb: gadget: udc: atmel: fix possible IN hang issue
    - LP: #1427438
  * ARM: clk-imx6q: fix video divider for rev T0 1.0
    - LP: #1427438
  * ARM: dts: imx25: Fix the SPI1 clocks
    - LP: #1427438
  * USB: cp210x: fix ID for production CEL MeshConnect USB Stick
    - LP: #1427438
  * USB: keyspan: fix null-deref at probe
    - LP: #1427438
  * ARM: omap5/dra7xx: Fix frequency typos
    - LP: #1427438
  * LOCKD: Fix a race when initialising nlmsvc_timeout
    - LP: #1427438
  * NFSv4.1: Fix client id trunking on Linux
    - LP: #1427438
  * USB: cp210x: add IDs for CEL USB sticks and MeshWorks devices
    - LP: #1427438
  * USB: qcserial/option: make AT URCs work for Sierra Wireless MC73xx
    - LP: #1427438
  * USB: EHCI: fix initialization bug in iso_stream_schedule()
    - LP: #1427438
  * OHCI: add a quirk for ULi M5237 blocking on reset
    - LP: #1427438
  * mei: clean reset bit before reset
    - LP: #1427438
  * target: Drop arbitrary maximum I/O size limit
    - LP: #1427438
  * usb: gadget: udc: atmel: fix possible oops when unloading module
    - LP: #1427438
  * USB: console: fix uninitialised ldisc semaphore
    - LP: #1427438
  * USB: console: fix potential use after free
    - LP: #1427438
  * mmc: sdhci: Fix sleep in atomic after inserting SD card
    - LP: #1427438
  * usb: dwc3: gadget: Fix TRB preparation during SG
    - LP: #1427438
  * usb: dwc3: gadget: Stop TRB preparation after limit is reached
    - LP: #1427438
  * ftrace/jprobes/x86: Fix conflict between jprobes and function graph
    tracing
    - LP: #1427438
  * clocksource: exynos_mct: Fix bitmask regression for exynos4_mct_write
    - LP: #1427438
  * time: settimeofday: Validate the values of tv from user
    - LP: #1427438
  * Input: i8042 - reset keyboard to fix Elantech touchpad detection
    - LP: #1427438
  * drm/radeon: fix VM flush on cayman/aruba (v3)
    - LP: #1427438
  * drm/radeon: fix VM flush on SI (v3)
    - LP: #1427438
  * drm/radeon: fix VM flush on CIK (v3)
    - LP: #1427438
  * drm/radeon: add a dpm quirk list
    - LP: #1427438
  * Input: elantech - support new ICs types for version 4
    - LP: #1427438
  * Input: I8042 - add Acer Aspire 7738 to the nomux list
    - LP: #1427438
  * drm/i915: Fix mutex->owner inspection race under DEBUG_MUTEXES
    - LP: #1427438
  * drm/radeon: add si dpm quirk list
    - LP: #1427438
  * pinctrl: Fix two deadlocks
    - LP: #1427438
  * gpio / ACPI: register to ACPI events automatically
    - LP: #1427438
  * gpio: fix memory and reference leaks in gpiochip_add error path
    - LP: #1427438
  * gpio: fix sleep-while-atomic in gpiochip_remove
    - LP: #1427438
  * can: dev: fix crtlmode_supported check
    - LP: #1427438
  * can: kvaser_usb: Don't free packets when tight on URBs
    - LP: #1427438
  * can: kvaser_usb: Reset all URB tx contexts upon channel close
    - LP: #1427438
  * can: kvaser_usb: Don't send a RESET_CHIP for non-existing channels
    - LP: #1427438
  * gpio: sysfs: fix gpio-chip device-attribute leak
    - LP: #1427438
  * gpio: sysfs: fix gpio device-attribute leak
    - LP: #1427438
  * gpiolib: of: Correct error handling in of_get_named_gpiod_flags
    - LP: #1427438
  * ALSA: usb-audio: Add mic volume fix quirk for Logitech Webcam C210
    - LP: #1427438
  * fix deadlock in cifs_ioctl_clone()
    - LP: #1427438
  * ipr: wait for aborted command responses
    - LP: #1427438
  * libata: allow sata_sil24 to opt-out of tag ordered submission
    - LP: #1427438
  * scripts/recordmcount.pl: There is no -m32 gcc option on Super-H anymore
    - LP: #1427438
  * libata: prevent HSM state change race between ISR and PIO
    - LP: #1427438
  * bus: mvebu-mbus: fix support of MBus window 13
    - LP: #1427438
  * ARM: dts: imx25: Fix PWM "per" clocks
    - LP: #1427438
  * x86, boot: Skip relocs when load address unchanged
    - LP: #1427438
  * x86, hyperv: Mark the Hyper-V clocksource as being continuous
    - LP: #1427438
  * x86, tls, ldt: Stop checking lm in LDT_empty
    - LP: #1427438
  * x86, tls: Interpret an all-zero struct user_desc as "no segment"
    - LP: #1427438
  * x86/apic: Re-enable PCI_MSI support for non-SMP X86_32
    - LP: #1427438
  * x86/tsc: Change Fast TSC calibration failed from error to info
    - LP: #1427438
  * dm cache: share cache-metadata object across inactive and active DM
    tables
    - LP: #1427438
  * dm cache: fix problematic dual use of a single migration count variable
    - LP: #1427438
  * time: adjtimex: Validate the ADJ_FREQUENCY values
    - LP: #1427438
  * ntp: Fixup adjtimex freq validation on 32-bit systems
    - LP: #1427438
  * Linux 3.13.11-ckt16
    - LP: #1427438
 -- Luis Henriques <luis.henriques@xxxxxxxxxxxxx>   Thu, 12 Mar 2015 10:21:27 +0000

** Changed in: linux (Ubuntu Utopic)
       Status: Fix Committed => Fix Released

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https://bugs.launchpad.net/bugs/1400215

Title:
  Atheros BT devices(ath3k) fail to work on USB3.0 buses

Status in HWE Next Project:
  Fix Committed
Status in linux package in Ubuntu:
  Fix Released
Status in linux source package in Trusty:
  Fix Released
Status in linux source package in Utopic:
  Fix Released
Status in linux source package in Vivid:
  Fix Released

Bug description:
  Atheros BT devices(ath3k) fail to work on USB3.0 buses, but work well
  on USB 2.0

    1. BT devices will disappear from USB3.0 buses.
    2. BT devices can be found on USB3.0 buses, but can not be found by hciconfig.
    3. There are FW loading error messages in dmesg with USB3.0.

  $ dmesg | grep Blu
  [ 13.996701] Bluetooth: Core ver 2.19
  [ 13.996716] Bluetooth: HCI device and connection manager initialized
  [ 13.996722] Bluetooth: HCI socket layer initialized
  [ 13.996723] Bluetooth: L2CAP socket layer initialized
  [ 13.996729] Bluetooth: SCO socket layer initialized
  [ 15.763696] Bluetooth: RFCOMM TTY layer initialized
  [ 15.763705] Bluetooth: RFCOMM socket layer initialized
  [ 15.763709] Bluetooth: RFCOMM ver 1.11
  [ 15.772693] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
  [ 15.772696] Bluetooth: BNEP filters: protocol multicast
  [ 15.772703] Bluetooth: BNEP socket layer initialized
  [ 17.378235] Bluetooth: Error in firmware loading err = -110,len = 448, size = 1496
  [ 17.378242] Bluetooth: Loading sysconfig file failed

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