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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 1213075

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/1213075

Title:
  Too slow hdd speed after booted up

Status in “linux” package in Ubuntu:
  Incomplete

Bug description:
  Hello. 
  Here a too strange bug report. I'm not really sure that it's kernel bug, but tests showing something like that.
  After Ubuntu 12.04 booted up i have too big problems with all data-storage devices. All of them are working too slow. I tested lastest and oldest kernels and all is ok OLNY on 3.2 kernel. I can't use 12.04 with 3.2 kernel because my ethernet card won't work here. I also TRIED ubuntu 13.04 (LiveCD) and results are the same.

  Here a simple example test by DD:

  Kernel 3.2.37:
  $ dd if=/dev/zero of=/tmp/1
  ^C2694838+0 recieved
  2694838+0 sent
  copied 1379757056 bytes (1,4 GB), 13,2817 sec, 104 MB/c

  Kernel 3.9.11:
  $ dd if=/dev/zero of=/tmp/1
  ^C6721+0 recieved
  6721+0 sent
  copied 3441152 bytes (3,4 MB), 12,56 sec, 274 kB/c

  ALL storage devices working like that, all are slowest. /tmp is not mounted anywhere (mean it's all by default). But in Windows all is ok. 
  Hardware: 
  Motherboard: GigaByte GA-Z87X-UD3H rev1.0
  Chipset: Intel Z87
  Software: UEFI F3 AMI,  Ubuntu 12.04 (tests from it) 

  $ cat /proc/version_signature > version.log
  file doen't exists! O_o
  I attached file logs.7z that contains /proc/version and lspci -vnvn.

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