First of all, thanks everybody for helping me with this problem.
When trying to transfer big files (>1GB) the system freezes until it
finishes. Anyway, speed is really slow comparing to windows:

uname -a

Linux adrian-PC 3.2.0-2-amd64 #1 SMP Tue Mar 20 18:36:37 UTC 2012 x86_64
GNU/Linux

I also attach the two outputs you asked for.

2012/4/2 Ming Lei <500...@bugs.launchpad.net>

> On Mon, Apr 2, 2012 at 10:28 PM, adri58 <500...@bugs.launchpad.net> wrote:
> > In Windows I have no problem at all.
>
> OK, so what is your problem in linux? just you fell that the writing
> is very slow?
> or USB file transfer may cause system freezes?
>
> > So, there must be something wrong with
> > the Linux kernel
>
> Could you post output of the below commands on your effected machine?
>
>        uname -a
>        lsusb -vv           #plug your usb mass storage into machine
>        lcpci -vv -n
>
> Thanks
> --
> Ming Lei
>
> --
> You received this bug notification because you are subscribed to a
> duplicate bug report (477843).
> https://bugs.launchpad.net/bugs/500069
>
> Title:
>  USB file transfer causes system freezes; ops take hours instead of
>  minutes
>
> Status in The Linux Kernel:
>  Confirmed
> Status in “linux” package in Ubuntu:
>  Triaged
> Status in “linux” package in Fedora:
>  Unknown
>
> Bug description:
>  USB Drive is a MP3 Player 2GB
>
>  sbec@Diamant:~$ lsusb
>  Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
>  Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
>  Bus 003 Device 002: ID 046d:c50e Logitech, Inc. MX-1000 Cordless Mouse
> Receiver
>  Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
>  Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
>  Bus 001 Device 004: ID 0402:5661 ALi Corp.
>  Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
>  sbec@Diamant:~$
>
>  Linux Diamant 2.6.31-15-generic #50-Ubuntu SMP Tue Nov 10 14:54:29 UTC
> 2009 i686 GNU/Linux
>  Ubuntu 2.6.31-15.50-generic
>
>  to test, i issued dd command:
>  dd if=/dev/zero of=/media/usb-disk/test-file bs=32
>
>  while dd is running i run dstat.... this is in the log file attached.
>
>  other logs are also in the tar.gz file...
>
>  there is a huge USB performance Bug report #1972262. this Report is
>  something simular
>
> To manage notifications about this bug go to:
> https://bugs.launchpad.net/linux/+bug/500069/+subscriptions
>


** Attachment added: "lspci"
   https://bugs.launchpad.net/bugs/500069/+attachment/2990992/+files/lspci

** Attachment added: "lsusb"
   https://bugs.launchpad.net/bugs/500069/+attachment/2990993/+files/lsusb

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https://bugs.launchpad.net/bugs/500069

Title:
  USB file transfer causes system freezes; ops take hours instead of
  minutes

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