kernel-packages team mailing list archive

[dann frazier <dann.frazier@xxxxxxxxxxxxx>]

This fix should flow naturally into utopic via stable. The driver isn't
in upstream 3.13 stable, and the flag code has changed since, so trusty
requires some backporting.

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https://bugs.launchpad.net/bugs/1358498

Title:
  ahci-xgene falsely advertises NCQ support

Status in “linux” package in Ubuntu:
  Incomplete

Bug description:
  [IMPACT]
  ahci-xgene doesn't support NCQ but it sets this flag. This causes SATA failures that surface as a filesystem being remounted read-only due to errors when using a disk that supports NCQ.
  [TEST CASE]
  Do a network boot install on an X-Gene system with an SSD drive that supports NCQ. The install will fail and dmesg will show the filesystem being remounted read-only.
  [Regression Potential]
  Minimal; we're turning off a feature that is known broken.

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