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

apport-collect 1625718

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/1625718

Title:
  I/O error after mpt2sas fault_state 0x265d

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  After a write intensive operation (like dd if=/dev/zero of=bigfile) an
  I/O error is issued and the filesystem is mounted read-only. Further
  read attempts from the storage result in more I/O errors.

  The RAID controller is a Dell/LSI SAS2008 FWVersion(06.00.00.00),
  ChipRevision(0x03), BiosVersion(07.07.00.00) managing just one RAID10
  array with four disks.

  The following kernels have been tried and gave the same problem:

  * linux-image-4.4.0-36-generic
  * linux-image-4.7.4-040704-generic
  * linux-image-4.8.0-040800rc7-generic

  All disks are clean when inspected with smartctl.

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