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[Id2ndR <fabien_id@xxxxxxxxxxxxx>]

The bug still exist on saucy with kernel 3.10.0.6.15
However the processes are different, and the time to open is worse than previous version. Here is the 3 first line of top output when I plug the usb drive:
 4497 root      20   0 11788 1776  852 S   9,6  0,1   0:01.34 systemd-udevd     
 4503 root      20   0     0    0    0 S   7,3  0,0   0:00.99 usb-storage       
 2064 root      20   0 51900 4624 3356 S   3,0  0,2   0:01.64 udisksd      

Sorry but I won't waste my time to test the latest kernel even if it is
a deb package in kernel PPA (I'm pretty sure that the but still exist
with this hardware that is nearly ten years old).

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https://bugs.launchpad.net/bugs/1093758

Title:
  udisks-daemon use lots of CPU and need 3 secondes to mount my Kingston
  USB drive

Status in “linux” package in Ubuntu:
  Incomplete

Bug description:
  - Hardware: 08ec:0015 M-Systems Flash Disk Pioneers Kingston DataTraveler ELITE
  - The trouble doesn't exist with other USB drive I have.
  - The trouble is reproducible on every single computer: it isn't related to my hardware confirguration

  udisk --monitor output lots of "changed:
  /org/freedesktop/UDisks/devices/sdc" before "added:
  /org/freedesktop/UDisks/devices/sdc1".

  I tried to change sdc1 partition type from 6 (fat16) to b (fat32)
  because I'm not sure of the filesystem but that doesn't change
  anything about udisks-daemon CPU usage and delay before be able to
  mount the partition.

  I'm using Ubuntu 12.04 but the bug has existed in previous version too.
  This bug may be related to #726814.

  
  lsusb -vvv:

  Bus 001 Device 008: ID 08ec:0015 M-Systems Flash Disk Pioneers Kingston DataTraveler ELITE
  Device Descriptor:
    bLength 18
    bDescriptorType 1
    bcdUSB 2.00
    bDeviceClass 0 (Defined at Interface level)
    bDeviceSubClass 0
    bDeviceProtocol 0
    bMaxPacketSize0 64
    idVendor 0x08ec M-Systems Flash Disk Pioneers
    idProduct 0x0015 Kingston DataTraveler ELITE
    bcdDevice 2.00
    iManufacturer 1
    iProduct 2
    iSerial 3
    bNumConfigurations 1
    Configuration Descriptor:
      bLength 9
      bDescriptorType 2
      wTotalLength 32
      bNumInterfaces 1
      bConfigurationValue 1
      iConfiguration 0
      bmAttributes 0x80
        (Bus Powered)
      MaxPower 140mA
      Interface Descriptor:
        bLength 9
        bDescriptorType 4
        bInterfaceNumber 0
        bAlternateSetting 0
        bNumEndpoints 2
        bInterfaceClass 8 Mass Storage
        bInterfaceSubClass 6 SCSI
        bInterfaceProtocol 80 Bulk-Only
        iInterface 0
        Endpoint Descriptor:
          bLength 7
          bDescriptorType 5
          bEndpointAddress 0x81 EP 1 IN
          bmAttributes 2
            Transfer Type Bulk
            Synch Type None
            Usage Type Data
          wMaxPacketSize 0x0200 1x 512 bytes
          bInterval 0

  dmesg:
  [ 2113.393288] usb 1-4: new high-speed USB device number 8 using ehci_hcd
  [ 2113.524941] usb 1-4: New USB device found, idVendor=08ec, idProduct=0015
  [ 2113.524950] usb 1-4: New USB device strings: Mfr=1, Product=2, SerialNumber=3
  [ 2113.524956] usb 1-4: Product: DT Elite HS 2.0
  [ 2113.524961] usb 1-4: Manufacturer: Kingston
  [ 2113.524966] usb 1-4: SerialNumber: 08202A40D093A9CC
  [ 2113.525590] scsi12 : usb-storage 1-4:1.0
  [ 2114.524855] scsi 12:0:0:0: Direct-Access Kingston DT Elite HS 2.0 5.02 PQ: 0 ANSI: 0 CCS
  [ 2114.526520] sd 12:0:0:0: Attached scsi generic sg4 type 0
  [ 2114.534321] sd 12:0:0:0: [sdc] Attached SCSI removable disk
  [ 2117.691684] sd 12:0:0:0: [sdc] 1019391 512-byte logical blocks: (521 MB/497 MiB)
  [ 2117.693678] sd 12:0:0:0: [sdc] No Caching mode page present
  [ 2117.693683] sd 12:0:0:0: [sdc] Assuming drive cache: write through
  [ 2117.696318] sd 12:0:0:0: [sdc] No Caching mode page present
  [ 2117.696322] sd 12:0:0:0: [sdc] Assuming drive cache: write through
  [ 2117.698010] sdc: sdc1
  --- 
  ApportVersion: 2.6.1-0ubuntu6
  Architecture: i386
  DistroRelease: Ubuntu 12.10
  InstallationDate: Installed on 2012-11-11 (45 days ago)
  InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release i386 (20121017.2)
  MarkForUpload: True
  Package: linux (not installed)
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=fr_FR.UTF-8
   SHELL=/bin/bash
  Tags:  quantal running-unity
  Uname: Linux 3.4.17-030417-generic i686
  UnreportableReason: The running kernel is not an Ubuntu kernel
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dialout dip gammu libvirtd lpadmin plugdev sambashare sudo vboxusers
  --- 
  ApportVersion: 2.11-0ubuntu1
  Architecture: i386
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  fabien     1758 F.... pulseaudio
  DistroRelease: Ubuntu 13.10
  HibernationDevice: RESUME=UUID=a1df37cb-148a-4c4e-a771-819d95a9fdd8
  InstallationDate: Installed on 2013-07-01 (36 days ago)
  InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Alpha i386 (20130701)
  MachineType: Hewlett-Packard HP Compaq nc6400 (RR980UC#ABF)
  MarkForUpload: True
  Package: linux (not installed)
  PccardctlIdent:
   Socket 0:
     no product info available
  PccardctlStatus:
   Socket 0:
     no card
  ProcFB: 0 radeondrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-3.10.0-6-generic root=UUID=3bfe8334-5846-4a2b-8c57-9e073b93cc1a ro rootflags=subvol=@ quiet splash vt.handoff=7
  ProcVersionSignature: Ubuntu 3.10.0-6.17-generic 3.10.3
  RelatedPackageVersions:
   linux-restricted-modules-3.10.0-6-generic N/A
   linux-backports-modules-3.10.0-6-generic  N/A
   linux-firmware                            1.112
  Tags:  saucy
  Uname: Linux 3.10.0-6-generic i686
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
  dmi.bios.date: 12/18/2006
  dmi.bios.vendor: Hewlett-Packard
  dmi.bios.version: 68YCD Ver. F.08
  dmi.board.name: 30AC
  dmi.board.vendor: Hewlett-Packard
  dmi.board.version: KBC Version 56.34
  dmi.chassis.type: 10
  dmi.chassis.vendor: Hewlett-Packard
  dmi.modalias: dmi:bvnHewlett-Packard:bvr68YCDVer.F.08:bd12/18/2006:svnHewlett-Packard:pnHPCompaqnc6400(RR980UC#ABF):pvrF.08:rvnHewlett-Packard:rn30AC:rvrKBCVersion56.34:cvnHewlett-Packard:ct10:cvr:
  dmi.product.name: HP Compaq nc6400 (RR980UC#ABF)
  dmi.product.version: F.08
  dmi.sys.vendor: Hewlett-Packard

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