Disks - benchmark pops error - Error opening /dev/sdb: Device or resource busy (udisks-error-quark, 0)

[florin]

There are many errors in working with USB (creating USB startup disk was the first to see) and now I cannot benchmark the USB drive as I get the Error opening /dev/sdb: Device or resource busy (udisks-error-quark, 0) error. I tried dozen of times, to make sure it is not something temporary. At some point I could do it on a different thumb drive, I do no know how, but after 2 errors, it worked. The second thumb drive was not that lucky.

There is some other bug, the one that I used before still appears in the list, see screenshot. It is not connected, but appears in Disks application drives list.

ProblemType: Bug
DistroRelease: Ubuntu 13.04
Package: gnome-disk-utility 3.6.1-1ubuntu1
ProcVersionSignature: Ubuntu 3.8.0-31.46-generic 3.8.13.8
Uname: Linux 3.8.0-31-generic x86_64
ApportVersion: 2.9.2-0ubuntu8.3
Architecture: amd64
Date: Tue Oct 8 15:32:11 2013
InstallationDate: Installed on 2013-04-25 (165 days ago)
InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release amd64 (20130424)
MarkForUpload: True
SourcePackage: gnome-disk-utility
UpgradeStatus: No upgrade log present (probably fresh install)

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[leet_linux_user (christopher-lemire)]

This bug also affects Linux Mint 14 x86_64 based on Ubuntu 12.10. See picture attachment.

[Brian Onn (brianonn)]

This bug also affects Linux Mint 16 AMD 64.

[Alex Ordonez (me-nh)]

I have marked that this bug affects me, but I have also somehow resolved this issue for my machine.

Steps I took which resulted in the bug:

1. Plug in new Western Digital My Passport Ultra into USB 3.0 port (running Ubuntu 12.04 LTS).
2. Use Disks utility to prepare for benchmark test.
3. Attempt to start benchmark, receive error.

Steps I took between getting the error and not getting the error:

1. Unplug same Western Digital hard drive from USB 3.0 port.
2. Plug in same Western Digital hard drive into adjacent USB 2.0 port.
3. Use Disks utility to prepare for benchmark test.
4. Attempt to start benchmark. Success.
5. Plug in same Western Digital hard drive into previously used USB 3.0 port.
6. Use Disks utility to prepare for benchmark test.
7. Attempt to start benchmark. Success.

I would like to believe something special happened when I plugged the hard drive into the USB 2.0 port that was not happening with the USB 3.0 port, however, maybe it was necessary that the hard drive go through an extra power cycle.

Hope this helps.