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[ThomasNovin <thomas@xxxxxxxxx>]

No problem when running 3.14.

thnov@thomas:~$ uname -r
3.14.0-031400-generic

Apr  2 21:12:17 thomas kernel: [   22.146067] usb 2-1.8: USB disconnect, device number 3
Apr  2 21:12:17 thomas acpid: input device has been disconnected, fd 10
Apr  2 21:12:26 thomas kernel: [   31.345922] usb 2-1.8: new full-speed USB device number 4 using ehci-pci
Apr  2 21:12:27 thomas kernel: [   31.441170] usb 2-1.8: New USB device found, idVendor=046d, idProduct=c52b
Apr  2 21:12:27 thomas kernel: [   31.441176] usb 2-1.8: New USB device strings: Mfr=1, Product=2, SerialNumber=0
Apr  2 21:12:27 thomas kernel: [   31.441187] usb 2-1.8: Product: USB Receiver
Apr  2 21:12:27 thomas kernel: [   31.441188] usb 2-1.8: Manufacturer: Logitech
Apr  2 21:12:27 thomas kernel: [   31.447707] logitech-djreceiver 0003:046D:C52B.0008: hiddev0,hidraw0: USB HID v1.11 Device [Logitech USB Receiver] on usb-0000:00:1d.0-1.8/input2
Apr  2 21:12:27 thomas mtp-probe: checking bus 2, device 4: "/sys/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.8"
Apr  2 21:12:27 thomas mtp-probe: bus: 2, device: 4 was not an MTP device
Apr  2 21:12:27 thomas kernel: [   31.504274] input: Logitech Unifying Device. Wireless PID:1024 as /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.8/2-1.8:1.2/0003:046D:C52B.0008/0003:046D:C52B.0009/input/input17
Apr  2 21:12:27 thomas kernel: [   31.504516] logitech-djdevice 0003:046D:C52B.0009: input,hidraw1: USB HID v1.11 Mouse [Logitech Unifying Device. Wireless PID:1024] on usb-0000:00:1d.0-1.8:1
Apr  2 21:12:27 thomas kernel: [   31.506280] input: Logitech Unifying Device. Wireless PID:2011 as /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.8/2-1.8:1.2/0003:046D:C52B.0008/0003:046D:C52B.000A/input/input18
Apr  2 21:12:27 thomas kernel: [   31.506390] logitech-djdevice 0003:046D:C52B.000A: input,hidraw2: USB HID v1.11 Keyboard [Logitech Unifying Device. Wireless PID:2011] on usb-0000:00:1d.0-1.8:2
Apr  2 21:12:27 thomas logger: USB device : - Description : Logitech, Inc. Unifying Receiver#012Intel Corp. Integrated Rate Matching Hub#012Linux Foundation 2.0 root hub#012Intel Corp. Integrated Rate Matching Hub#012Linux Foundation 2.0 root hub#012Linux Foundation 3.0 root hub#012Linux Foundation 2.0 root hub
Apr  2 21:12:27 thomas logger: USB device : - SysFS path  : /sys/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.8
Apr  2 21:12:27 thomas logger: USB device : - Device is enabled to handle suspend/resume
Apr  2 21:12:27 thomas logger: USB device : - Description : Logitech, Inc. Unifying Receiver#012Intel Corp. Integrated Rate Matching Hub#012Linux Foundation 2.0 root hub#012Intel Corp. Integrated Rate Matching Hub#012Linux Foundation 2.0 root hub#012Linux Foundation 3.0 root hub#012Linux Foundation 2.0 root hub
Apr  2 21:12:27 thomas logger: USB device : - SysFS path  : /sys/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.8/2-1.8:1.0
Apr  2 21:12:27 thomas logger: USB device : - Device is enabled to handle suspend/resume
Apr  2 21:12:27 thomas logger: USB device : - Description : Logitech, Inc. Unifying Receiver#012Intel Corp. Integrated Rate Matching Hub#012Linux Foundation 2.0 root hub#012Intel Corp. Integrated Rate Matching Hub#012Linux Foundation 2.0 root hub#012Linux Foundation 3.0 root hub#012Linux Foundation 2.0 root hub
Apr  2 21:12:27 thomas logger: USB device : - SysFS path  : /sys/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.8/2-1.8:1.2
Apr  2 21:12:27 thomas logger: USB device : - Device is enabled to handle suspend/resume
Apr  2 21:12:27 thomas logger: USB device : - Description : Logitech, Inc. Unifying Receiver#012Intel Corp. Integrated Rate Matching Hub#012Linux Foundation 2.0 root hub#012Intel Corp. Integrated Rate Matching Hub#012Linux Foundation 2.0 root hub#012Linux Foundation 3.0 root hub#012Linux Foundation 2.0 root hub
Apr  2 21:12:27 thomas logger: USB device : - SysFS path  : /sys/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.8/2-1.8:1.1
Apr  2 21:12:27 thomas logger: USB device : - Device is enabled to handle suspend/resume
^C
thnov@thomas:~$ lsusb | grep Logitech
Bus 002 Device 004: ID 046d:c52b Logitech, Inc. Unifying Receiver


** Changed in: linux (Ubuntu)
       Status: Incomplete => Confirmed

** Tags added: kernel-fixed-upstream

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https://bugs.launchpad.net/bugs/1300705

Title:
  Every time I disconnect Logitech dongle from USB, call trace

Status in “linux” package in Ubuntu:
  Confirmed

Bug description:
  I have a Logitech wireless mouse & keyboard with a USB dongle attached
  to the laptop.

  $ lsusb | grep Logitech
  Bus 001 Device 008: ID 046d:c52b Logitech, Inc. Unifying Receiver

  If I unplug it, I get this crash:

  Apr  1 12:49:50 thonov-ubuntu kernel: [25787.671626] usb 1-1.2: USB disconnect, device number 7
  Apr  1 12:49:50 thonov-ubuntu kernel: [25787.774916] ------------[ cut here ]------------
  Apr  1 12:49:50 thonov-ubuntu kernel: [25787.774929] WARNING: CPU: 3 PID: 1286 at /build/buildd/linux-3.13.0/fs/sysfs/group.c:214 sysfs_remove_group+0xc6/0xd0()
  Apr  1 12:49:50 thonov-ubuntu kernel: [25787.774933] sysfs group ffffffff81cab340 not found for kobject 'hidraw0'
  Apr  1 12:49:50 thonov-ubuntu kernel: [25787.774935] Modules linked in: ctr ccm pci_stub vboxpci(OF) vboxnetadp(OF) vboxnetflt(OF) vboxdrv(OF) arc4 iwldvm mac80211 cdc_mbim snd_hda_codec_hdmi snd_hda_codec_conexant cdc_ncm usbnet cdc_acm mii cdc_wdm snd_hda_intel snd_hda_codec snd_hwdep snd_pcm intel_rapl snd_page_alloc x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel joydev kvm uvcvideo videobuf2_vmalloc videobuf2_memops crct10dif_pclmul videobuf2_core crc32_pclmul videodev ghash_clmulni_intel aesni_intel aes_x86_64 btusb lrw gf128mul glue_helper ablk_helper cryptd thinkpad_acpi rfcomm nvram bnep bluetooth snd_seq_midi snd_seq_midi_event snd_rawmidi snd_seq psmouse snd_seq_device serio_raw iwlwifi snd_timer cfg80211 lpc_ich snd soundcore mac_hid mei_me mei lp parport hid_logitech_dj usbhid hid ahci libahci i915 firewire_ohci firewire_core sdhci_pci i2c_algo_bit drm_kms_helper sdhci e1000e crc_itu_t drm ptp pps_core wmi video
  Apr  1 12:49:50 thonov-ubuntu kernel: [25787.775032] CPU: 3 PID: 1286 Comm: upowerd Tainted: GF       W  O 3.13.0-20-generic #42-Ubuntu
  Apr  1 12:49:50 thonov-ubuntu kernel: [25787.775035] Hardware name: LENOVO 42433ZG/42433ZG, BIOS 8AET64WW (1.44 ) 07/26/2013
  Apr  1 12:49:50 thonov-ubuntu kernel: [25787.775038]  0000000000000009 ffff88021129fd28 ffffffff81712751 ffff88021129fd70
  Apr  1 12:49:50 thonov-ubuntu kernel: [25787.775044]  ffff88021129fd60 ffffffff810676bd 0000000000000000 ffffffff81cab340
  Apr  1 12:49:50 thonov-ubuntu kernel: [25787.775050]  ffff8801cd2a7410 ffff8802109cf8e8 ffff88020d7b4160 ffff88021129fdc0
  Apr  1 12:49:50 thonov-ubuntu kernel: [25787.775055] Call Trace:
  Apr  1 12:49:50 thonov-ubuntu kernel: [25787.775065]  [<ffffffff81712751>] dump_stack+0x45/0x56
  Apr  1 12:49:50 thonov-ubuntu kernel: [25787.775071]  [<ffffffff810676bd>] warn_slowpath_common+0x7d/0xa0
  Apr  1 12:49:50 thonov-ubuntu kernel: [25787.775076]  [<ffffffff8106772c>] warn_slowpath_fmt+0x4c/0x50
  Apr  1 12:49:50 thonov-ubuntu kernel: [25787.775082]  [<ffffffff81231b1e>] ? sysfs_get_dirent_ns+0x4e/0x70
  Apr  1 12:49:50 thonov-ubuntu kernel: [25787.775087]  [<ffffffff81232e06>] sysfs_remove_group+0xc6/0xd0
  Apr  1 12:49:50 thonov-ubuntu kernel: [25787.775093]  [<ffffffff814928d3>] dpm_sysfs_remove+0x43/0x50
  Apr  1 12:49:50 thonov-ubuntu kernel: [25787.775099]  [<ffffffff81488305>] device_del+0x45/0x1c0
  Apr  1 12:49:50 thonov-ubuntu kernel: [25787.775104]  [<ffffffff8148849e>] device_unregister+0x1e/0x60
  Apr  1 12:49:50 thonov-ubuntu kernel: [25787.775109]  [<ffffffff8148855c>] device_destroy+0x3c/0x50
  Apr  1 12:49:50 thonov-ubuntu kernel: [25787.775123]  [<ffffffffa020d8e7>] drop_ref.part.2+0x57/0x70 [hid]
  Apr  1 12:49:50 thonov-ubuntu kernel: [25787.775133]  [<ffffffffa020e231>] hidraw_release+0xa1/0xc0 [hid]
  Apr  1 12:49:50 thonov-ubuntu kernel: [25787.775140]  [<ffffffff811bc014>] __fput+0xe4/0x260
  Apr  1 12:49:50 thonov-ubuntu kernel: [25787.775146]  [<ffffffff811bc1de>] ____fput+0xe/0x10
  Apr  1 12:49:50 thonov-ubuntu kernel: [25787.775153]  [<ffffffff81088087>] task_work_run+0xa7/0xe0
  Apr  1 12:49:50 thonov-ubuntu kernel: [25787.775160]  [<ffffffff81013df7>] do_notify_resume+0x97/0xb0
  Apr  1 12:49:50 thonov-ubuntu kernel: [25787.775167]  [<ffffffff817233ea>] int_signal+0x12/0x17
  Apr  1 12:49:50 thonov-ubuntu kernel: [25787.775171] ---[ end trace c157daa9aac14534 ]---

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: linux-generic 3.13.0.20.24
  ProcVersionSignature: Ubuntu 3.13.0-20.42-generic 3.13.7
  Uname: Linux 3.13.0-20-generic x86_64
  ApportVersion: 2.13.3-0ubuntu1
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  thonov     2063 F.... pulseaudio
  CurrentDesktop: Unity
  Date: Tue Apr  1 12:50:24 2014
  EcryptfsInUse: Yes
  InstallationDate: Installed on 2014-03-26 (5 days ago)
  InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Beta amd64 (20140325.1)
  MachineType: LENOVO 42433ZG
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-20-generic root=UUID=c3c7f36f-ca42-443e-819f-5553fe3d040a ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.13.0-20-generic N/A
   linux-backports-modules-3.13.0-20-generic  N/A
   linux-firmware                             1.126
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 07/26/2013
  dmi.bios.vendor: LENOVO
  dmi.bios.version: 8AET64WW (1.44 )
  dmi.board.asset.tag: Not Available
  dmi.board.name: 42433ZG
  dmi.board.vendor: LENOVO
  dmi.board.version: Not Available
  dmi.chassis.asset.tag: No Asset Information
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: Not Available
  dmi.modalias: dmi:bvnLENOVO:bvr8AET64WW(1.44):bd07/26/2013:svnLENOVO:pn42433ZG:pvrThinkPadT520:rvnLENOVO:rn42433ZG:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
  dmi.product.name: 42433ZG
  dmi.product.version: ThinkPad T520
  dmi.sys.vendor: LENOVO

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