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[Brad Figg <brad.figg@xxxxxxxxxxxxx>]

This bug is missing log files that will aid in diagnosing the problem.
>From a terminal window please run:

apport-collect 1588467

and then change the status of the bug to 'Confirmed'.

If, due to the nature of the issue you have encountered, you are unable
to run this command, please add a comment stating that fact and change
the bug status to 'Confirmed'.

This change has been made by an automated script, maintained by the
Ubuntu Kernel Team.

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

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https://bugs.launchpad.net/bugs/1588467

Title:
  Mount USB3 KEY of 64 Go

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  New question #293348 on Ubuntu:
  https://answers.launchpad.net/ubuntu/+question/293348

  Bonjour. / Hello.

  Je  peux utiliser ma clé USB3 sur un port USB3 avec windows mais pas avec ubuntu 16.04 sauf à y mettre un prolongateur usb2.
  I use my “USB3-key on a USB3 port with Windows but not with ubuntu 16.04 except to put a USB2 extender.

  u1604btrfs@u1604btrfs:~$ cat /etc/lsb-release
  DISTRIB_ID=Ubuntu
  DISTRIB_RELEASE=16.04
  DISTRIB_CODENAME=xenial
  DISTRIB_DESCRIPTION="Ubuntu 16.04 LTS"
  u1604btrfs@u1604btrfs:~$ 

  La clé USB3 de 64 GO connectée directement à un port USB3 n’a aucun problème avec windows10 avec un débit moyen de 42 MB/s.
  The USB3 64GB connected directly to a USB3 port was no problem with Windows 10 with an average throughput of 42 MB / s.

  La clé USB3 de 64 GO connectée via un càble USB de prolongation  (20 cm)  à un port USB3 fonctionne avec un débit moyen de 26 MB/s avec ubuntu.
  The USB3 64GB connected via an extension USB cable (20 cm) to a USB3 port works with an average throughput of 26 MB / s with ubuntu.

  Un disque USB3 connecté à ce même port USB3 fonctionne avec un débit moyen de 106 MB/s avec ubuntu,
  A USB3 drive connected to the same USB3 port works with an average throughput of 106 MB / s with ubuntu.

  La clé USB3 de 64 GO connectée directement à un port USB3 ne se monte pas  avec ubuntu, Je pense à un problème logiciel. Merci de votre avis.
  The USB 3 64GB connected directly to a USB3 port does not go up with ubuntu. I think to a software problem, Thanks for your review,

  Trace DMESG du branchement direct. 
  Trace DMESG direct connection.
  [15027.934173] usb 3-1: USB disconnect, device number 3
  [15113.908384] usb 4-1: new SuperSpeed USB device number 3 using xhci_hcd
  [15113.949359] usb 4-1: New USB device found, idVendor=0951, idProduct=1666
  [15113.949370] usb 4-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
  [15113.949377] usb 4-1: Product: DataTraveler 3.0
  [15113.949387] usb 4-1: Manufacturer: Kingston
  [15113.949395] usb 4-1: SerialNumber: 60A44C426697FE50C98100E8
  [15118.948235] usb 4-1: Set SEL for device-initiated U2 failed.
  [15118.951961] usb 4-1: Disable of device-initiated U1 failed.
  [15118.955466] usb 4-1: Disable of device-initiated U2 failed.
  [15118.955474] usb-storage 4-1:1.0: USB Mass Storage device detected
  [15118.955648] scsi host9: usb-storage 4-1:1.0
  [15118.959180] usb 4-1: Set SEL for device-initiated U1 failed.
  [15118.962661] usb 4-1: Set SEL for device-initiated U2 failed.
  [15118.962810] usb 4-1: USB disconnect, device number 3
  [15455.620301] perf interrupt took too long (2527 > 2500), lowering kernel.perf_event_max_sample_rate to 50000

  
  Trace DMESG du branchement avec un câble prolongateur.
  Trace DMESG connecting with an extension cable.
  [15455.620301] perf interrupt took too long (2527 > 2500), lowering kernel.perf_event_max_sample_rate to 50000
  [15930.041889] usb 3-1: new high-speed USB device number 4 using xhci_hcd
  [15930.248230] usb 3-1: New USB device found, idVendor=0951, idProduct=1666
  [15930.248237] usb 3-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
  [15930.248241] usb 3-1: Product: DataTraveler 3.0
  [15930.248244] usb 3-1: Manufacturer: Kingston
  [15930.248246] usb 3-1: SerialNumber: 60A44C426697FE50C98100E8
  [15930.248591] usb 3-1: ep 0x81 - rounding interval to 128 microframes, ep desc says 255 microframes
  [15930.248610] usb 3-1: ep 0x2 - rounding interval to 128 microframes, ep desc says 255 microframes
  [15930.249352] usb-storage 3-1:1.0: USB Mass Storage device detected
  [15930.251542] scsi host10: usb-storage 3-1:1.0
  [15932.447123] scsi 10:0:0:0: Direct-Access     Kingston DataTraveler 3.0 1.00 PQ: 0 ANSI: 6
  [15932.447953] sd 10:0:0:0: Attached scsi generic sg2 type 0
  [15932.449447] sd 10:0:0:0: [sdb] 120845300 512-byte logical blocks: (61.9 GB/57.6 GiB)
  [15932.451694] sd 10:0:0:0: [sdb] Write Protect is off
  [15932.451704] sd 10:0:0:0: [sdb] Mode Sense: 4f 00 00 00
  [15932.453308] sd 10:0:0:0: [sdb] Write cache: disabled, read cache: enabled, doesn't support DPO or FUA
  [15932.470160]  sdb: sdb1 sdb2 sdb3 sdb4
  [15932.472853] sd 10:0:0:0: [sdb] Attached SCSI removable disk
  [15933.102257] EXT4-fs (sdb3): mounted filesystem with ordered data mode. Opts: (null)
  [15933.128433] EXT4-fs (sdb2): mounted filesystem with ordered data mode. Opts: (null)
  u1604btrfs@u1604btrfs:~$

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