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[Bug 1520427] Missing required logs.


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

apport-collect 1520427

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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   drm/fbdev: Return -EBUSY when oopsing

Status in linux package in Ubuntu:

Bug description:
  Between upstream kernel v3.19 to v4.2,when Intel SMEP/SMAP protection was triggered by some wild function call or data access,  the screen would be frozen and never come back,but the system does not hang.

  Generally, an SMEP/SMAP violation should cause the involved process
  killed, an oops from page fault exception generated to the syslog, and
  the system survived.

  One patch from 4.3 kernel fix this issue
  commit c50bfd08d60cefbe1714c4a53b1c325982858549
  Author: Daniel Vetter <daniel.vetter@xxxxxxxx>
  Date:   Tue Jul 28 13:18:40 2015 +0200

      drm/fbdev: Return -EBUSY when oopsing

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