kernel-packages team mailing list archive

[Rafael David Tinoco <rafael.tinoco@xxxxxxxxxxxxx>]

I had positive feedback on the patch I have provided in the PPA:

Ubuntu-3.13.0-53.89 + patch:

commit 682de5f4135f3414ec87bb76ef400de1148393c8
Author: Dan Williams <email address hidden>
Date: Fri May 8 15:23:55 2015 -0400

    ahci: avoton port-disable reset-quirk

    Avoton AHCI occasionally sees drive probe timeouts at driver load time.
    When this happens SCR_STATUS indicates device detected, but no D2H FIS
    reception. Reset the internal link state machines by bouncing
    port-enable in the PCS register when this occurs.

    Cc: <email address hidden>
    Signed-off-by: Dan Williams <email address hidden>
    Signed-off-by: Tejun Heo <email address hidden>

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https://bugs.launchpad.net/bugs/1458617

Title:
  Avoton server occasionally fails to boot when using SSD disks
  connected using ahci driver

Status in linux package in Ubuntu:
  In Progress

Bug description:
  It was brought to my attention the following BUG:

  Avoton server occasionally fails to boot when using SSD disks 
  connected using ahci driver. When this problem occurs, the disk is 
  not recognized by the Linux kernel, and the server fails to boot. 

  * Upstream acceptance information:

  Intel's patch has already been accepted upstream 
  commit dbfe8ef5599a5370abc441fcdbb382b656563eb4 
  Author: Dan Williams <dan.j.williams@xxxxxxxxx> 
  Date: Fri May 8 15:23:55 2015 -0400 
  ahci: avoton port-disable reset-quirk 

  Refer to
  http://permalink.gmane.org/gmane.linux.kernel.commits.head/524068

  * How reproducible: 
  About once per 5000 reboots on one server. However, if the customer 
  has several hundred servers, the frequency isn't negligible. 

  * Steps to Reproduce: 
  Reboot server.

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