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[Adam Conrad <adconrad@xxxxxxx>]

*** This bug is a duplicate of bug 1338706 ***
    https://bugs.launchpad.net/bugs/1338706

** This bug has been marked a duplicate of bug 1338706
   Samsung SSD 840 failed to get NCQ Send/Recv Log Emask 0x1 failed to set xfermode (err_mask=0x40) on upstream kernels >= 3.12

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https://bugs.launchpad.net/bugs/1465663

Title:
  libata Samsung SSD 8 series TRIM blacklist

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  Dear all,

  In order to be able to upgrade one of our servers to the latest LTS (14.04), we need that the Samsung SSD 8 series to be blacklisted from the libata for the TRIM command.
  Due to the bug described here [1],  not having the SSD blacklisted would lead to data corruption which we cannot afford.
  The Samsung SSD was blacklisted with that commit [2].

  I checked, it's not present in current Trusty kernel. Could you please
  backport it?

  With my best regards,

  [1]: https://blog.algolia.com/when-solid-state-drives-are-not-that-solid/
  [2]: https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/drivers/ata/libata-core.c?id=9a9324d3969678d44b330e1230ad2c8ae67acf81

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