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[Bug 1457510] Re: md raid0 w/ fstrim causing data loss


** Changed in: linux (Ubuntu Wily)
     Assignee: (unassigned) => Leann Ogasawara (leannogasawara)

** Changed in: linux (Ubuntu Wily)
       Status: Triaged => In Progress

** Changed in: linux (Ubuntu Wily)
   Importance: Undecided => High

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  md raid0 w/ fstrim causing data loss

Status in linux package in Ubuntu:
  In Progress
Status in linux source package in Utopic:
Status in linux source package in Vivid:
Status in linux source package in Wily:
  In Progress

Bug description:
  Commit 47d68979cc96 ("md/raid0: fix bug with chunksize not a power of
  2.") introduced in v4.1 development has been picked by stable trees,
  and is causing issues (see

  This commit has been dropped from Vivid and Utopic when pulling the
  changes from stable trees 3.19.7 and 3.16.7-ckt11 respectively (bug
  #1454699 and bug #1454202).

  The fix for this issue is not upstream yet, and should be picked by
  stable trees.  Here's the link for the proposed fix:

  break-fix: 47d68979cc968535cb87f3e5f2e6a3533ea48fbd -

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