ahci-xgene stability improvements

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

apport-collect 1350087

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.

Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v3.16 kernel[0].

If this bug is fixed in the mainline kernel, please add the following tag 'kernel-fixed-upstream'.

If the mainline kernel does not fix this bug, please add the tag: 'kernel-bug-exists-upstream'.

If you are unable to test the mainline kernel, for example it will not boot, please add the tag: 'kernel-unable-to-test-upstream'.
Once testing of the upstream kernel is complete, please mark this bug as "Confirmed".

Thanks in advance.

[0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.16-rc7-utopic/

Also, It would be helpful to run the apport command mentioned in comment #1. That will tell us which kernel this is against.

Received answers to questions on mailing list:

https://lists.ubuntu.com/archives/kernel-team/2014-July/046890.html

This bug applies to the trusty, utopic and upstream kernels. Some of the patches are queued for 3.17, some others are still under discussion.

I've sent out a pull request for this branch for trusty which resolves it:
http://kernel.ubuntu.com/git?p=dannf/trusty-xgene.git;a=shortlog;h=refs/heads/for-ubuntu-20140729

As patches are accepted upstream, I'll do the same for utopic (providing backports to utopic's 3.16).

This bug was fixed in the package linux - 3.16.0-8.13

---------------
linux (3.16.0-8.13) utopic; urgency=low

  [ Tim Gardner ]

  * Release Tracking Bug
    - LP: #1356403

  [ dann frazier ]

  * [debian] Allow for package revisions condusive for branching

  [ Upstream Kernel Changes ]

  * ahci_xgene: Fix the watermark threshold for the APM X-Gene SATA host controller driver.
    - LP: #1350087
  * ahci_xgene: Use correct OOB tunning parameters for APM X-Gene SoC AHCI SATA Host controller driver.
    - LP: #1350087
  * powerpc/powernv: Enable M64 aperatus for PHB3
    - LP: #1355469
  * powerpc: Fail remap_4k_pfn() if PFN doesn't fit inside PTE
    - LP: #1352994
  * powerpc: Add machine_early_initcall()
    - LP: #1352640
  * powerpc/powernv: Switch powernv drivers to use machine_xxx_initcall()
    - LP: #1352640
  * powerpc/eeh: Avoid event on passed PE
    - LP: #1352640
  * powerpc/eeh: EEH support for VFIO PCI device
    - LP: #1352640
  * powerpc/eeh: sysfs entries lost
    - LP: #1352640
  * powerpc/powernv: Fix IOMMU table for VFIO dev
    - LP: #1352640
  * powerpc/eeh: Fetch IOMMU table in reliable way
    - LP: #1352640
  * powerpc/eeh: Refactor EEH flag accessors
    - LP: #1352640
  * powerpc/eeh: Selectively enable IO for error log
    - LP: #1352640
  * powerpc/eeh: Reduce lines of log dump
    - LP: #1352640
  * powerpc/eeh: Replace pr_warning() with pr_warn()
    - LP: #1352640
  * powerpc/eeh: Make diag-data not endian dependent
    - LP: #1352640
  * powerpc/eeh: Aux PE data for error log
    - LP: #1352640
  * PCI: Support BAR sizes up to 128GB
    - LP: #1352640
  * powerpc/powernv: Allow to freeze PE
    - LP: #1352640
  * powerpc/powernv: Split ioda_eeh_get_state()
    - LP: #1352640
  * powerpc/powernv: Handle compound PE
    - LP: #1352640
  * powerpc/powernv: Handle compound PE for EEH
    - LP: #1352640
  * powerpc/powernv: Handle compound PE in config accessors
    - LP: #1352640
  * mnt: Only change user settable mount flags in remount
    - LP: #1356318
    - CVE-2014-5206
  * mnt: Move the test for MNT_LOCK_READONLY from change_mount_flags into do_remount
    - LP: #1356318
    - CVE-2014-5206
  * mnt: Correct permission checks in do_remount
    - LP: #1356323
    - CVE-2014-5207
  * mnt: Change the default remount atime from relatime to the existing value
    - LP: #1356323
    - CVE-2014-5207
 -- Tim Gardner <email address hidden> Sun, 10 Aug 2014 09:10:51 -0600

This bug is awaiting verification that the kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed-trusty' to 'verification-done-trusty'.

If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed.

See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you!

This bug was fixed in the package linux - 3.13.0-35.62

---------------
linux (3.13.0-35.62) trusty; urgency=low

  [ Joseph Salisbury ]

  * Release Tracking Bug
    - LP: #1357148

  [ Brad Figg ]

  * Start new release

  [ dann frazier ]

  * SAUCE: (no-up) Fix build failure on arm64
    - LP: #1353657
  * [debian] Allow for package revisions condusive for branching

  [ David Henningsson ]

  * SAUCE: Call broadwell specific functions from the hda driver
    - LP: #1317865

  [ Edward Lin ]

  * SAUCE: (no-up) Add use native backlight quirk for Dell Inspiron
    5547/5447
    - LP: #1332437

  [ Imre Deak ]

  * SAUCE: drm/i915: move power domain init earlier during system resume
    - LP: #1353405

  [ Jani Nikula ]

  * SAUCE: drm/i915: use lane count and link rate from VBT as minimums for
    eDP
    - LP: #1338582
  * SAUCE: drm/i915/dp: force eDP lane count to max available lanes on BDW
    - LP: #1338582
  * SAUCE: drm/i915: provide interface for audio driver to query cdclk
    - LP: #1188091
  * SAUCE: drm/i915: demote opregion excessive timeout WARN_ONCE to
    DRM_INFO_ONCE
    - LP: #1351014

  [ Joseph Salisbury ]

  * [Config] updateconfigs after Linux 3.13.11.6 updates

  [ Luis Henriques ]

  * Revert "[Packaging] linux-udeb-flavour -- standardise on linux prefix"

  [ Ming Lei ]

  * Revert "SAUCE: (no-up) ata: Fix the dma state machine lockup for the
    IDENTIFY DEVICE PIO mode command."
    - LP: #1335645

  [ Paulo Zanoni ]

  * SAUCE: drm/i915: consider the source max DP lane count too
    - LP: #1338582

  [ Tim Gardner ]

  * [Config] CONFIG_GPIO_SYSFS=y
    - LP: #1342153
  * [Config] CONFIG_KEYS_DEBUG_PROC_KEYS=y
    - LP: #1344405
  * [Config] updateconfigs
  * [Config] CONFIG_SCSI_IPR_TRACE=y, CONFIG_SCSI_IPR_DUMP=y
    - LP: #1343109
  * [Config] CONFIG_CONTEXT_TRACKING_FORCE=n
    - LP: #1349028

  [ Timo Aaltonen ]

  * SAUCE: Fix a typo in hda i915_bdw support.
    - LP: #1343140

  [ Upstream Kernel Changes ]

  * Revert "net/mlx4_en: Fix bad use of dev_id"
    - LP: #1347012
  * Revert "ACPI / AC: Remove AC's proc directory."
    - LP: #1356913
  * Revert "mac80211: move "bufferable MMPDU" check to fix AP mode scan"
    - LP: #1356913
  * mm, pcp: allow restoring percpu_pagelist_fraction default
    - LP: #1347088
  * net: Fix permission check in netlink_connect()
    - LP: #1312989
  * netlink: Rename netlink_capable netlink_allowed
    - LP: #1312989
  * net: Move the permission check in sock_diag_put_filterinfo to
    packet_diag_dump
    - LP: #1312989
  * net: Add variants of capable for use on on sockets
    - LP: #1312989
  * net: Add variants of capable for use on netlink messages
    - LP: #1312989
  * net: Use netlink_ns_capable to verify the permisions of netlink
    messages
    - LP: #1312989
  * netlink: Only check file credentials for implicit destinations
    - LP: #1312989
  * igb: fix stats for i210 rx_fifo_errors
    - LP: #1338893
  * HID: use multi input quirk for 22b9:2968
    - LP: #1339567
  * crypto/nx: disable NX on little endian builds
    - LP: #1338666
  * ACPI / video: Add Dell Inspiron 5737 to the blacklist
    - LP: #1250401
  * Input: elantech - deal with clickpads reportin...