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[Bug 1529381] Re: Updating 14.04.3 to latest updates renders system unbootable


I got it! If I didn't mess it up but I don't think so.

Side question: do you have to do "fakeroot debian/rules clean" for every
step when bisecting? The guide was a bit unclear on that. I was just
thinking the compile process might be quicker if I didn't do clean in

19114b5458510b757cd2801e64094e4062e4067f is the first bad commit
commit 19114b5458510b757cd2801e64094e4062e4067f
Author: Lv Zheng <lv.zheng@xxxxxxxxx>
Date:   Wed Jul 1 14:43:34 2015 +0800

    ACPICA: Tables: Enable default 64-bit FADT addresses favor
    BugLink: http://bugs.launchpad.net/bugs/1479048
    commit 0ea61381788a37d864f9841b0fe97d40f7058f3b upstream.
    ACPICA commit 4da56eeae0749dfe8491285c1e1fad48f6efafd8
    The following commit temporarily disables correct 64-bit FADT addresses
    favor during the period the root cause of the bug is not fixed:
     Commit: 85dbd5801f62b66e2aa7826aaefcaebead44c8a6
     ACPICA: Tables: Restore old behavor to favor 32-bit FADT addresses.
    With enough protections, this patch re-enables 64-bit FADT addresses by
    default. If regressions are reported against such change, this patch should
    be bisected and reverted.
    Note that 64-bit FACS favor and 64-bit firmware waking vector favor are
    excluded by this commit in order not to break OSPMs. Lv Zheng.
    Link: https://bugzilla.kernel.org/show_bug.cgi?id=74021
    Link: https://github.com/acpica/acpica/commit/4da56eea
    Reported-and-tested-by: Oswald Buddenhagen <ossi@xxxxxxx>
    Signed-off-by: Lv Zheng <lv.zheng@xxxxxxxxx>
    Signed-off-by: Bob Moore <robert.moore@xxxxxxxxx>
    Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx>
    Signed-off-by: Kamal Mostafa <kamal@xxxxxxxxxxxxx>
    Signed-off-by: Luis Henriques <luis.henriques@xxxxxxxxxxxxx>

:040000 040000 0b002dc7d6e5abe0ded978926361d88efd5a0f88
27c36ea102b1622ded7beecbca477f62fa33922a M      include

** Bug watch added: Linux Kernel Bug Tracker #74021

** Changed in: linux (Ubuntu)
       Status: Incomplete => Confirmed

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  Updating 14.04.3 to latest updates renders system unbootable

Status in linux package in Ubuntu:

Bug description:
  To reproduce (on this hardware)

  1) Install 14.04.3 LTS (Ubuntu or XUbuntu)
  2) Install updates
  3) Reboot

  The kernel used after update is 3.19.0-42. Booting with the kernel
  that came with the install image (3.19.0-25) works fine.

  This computer is a HP Compaq 6715s. I have looked at HPs support pages
  for BIOS updates for this model but none was available.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: linux-image-3.19.0-42-generic 3.19.0-42.48~14.04.1
  ProcVersionSignature: Ubuntu 3.19.0-25.26~14.04.1-generic 3.19.8-ckt2
  Uname: Linux 3.19.0-25-generic x86_64
  ApportVersion: 2.14.1-0ubuntu3.19
  Architecture: amd64
  CurrentDesktop: XFCE
  Date: Sat Dec 26 16:36:30 2015
  InstallationDate: Installed on 2015-12-26 (0 days ago)
  InstallationMedia: Xubuntu 14.04.3 LTS "Trusty Tahr" - Beta amd64 (20150805)
  SourcePackage: linux-lts-vivid
  UpgradeStatus: No upgrade log present (probably fresh install)
  ApportVersion: 2.14.1-0ubuntu3.19
  Architecture: amd64
  AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1:
  CurrentDesktop: XFCE
  DistroRelease: Ubuntu 14.04
  HibernationDevice: RESUME=UUID=522810df-638a-412b-9aab-791e2e2bc545
  InstallationDate: Installed on 2015-12-26 (0 days ago)
  InstallationMedia: Xubuntu 14.04.3 LTS "Trusty Tahr" - Beta amd64 (20150805)
  MachineType: Hewlett-Packard HP Compaq 6715s (RU655ET#AK8)
  Package: linux (not installed)
   Socket 0:
     no product info available
   Socket 0:
     no card
  ProcFB: 0 radeondrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-25-generic root=UUID=0dd333f9-6172-41eb-9472-a321d48c04eb ro quiet splash
  ProcVersionSignature: Ubuntu 3.19.0-25.26~14.04.1-generic 3.19.8-ckt2
   linux-restricted-modules-3.19.0-25-generic N/A
   linux-backports-modules-3.19.0-25-generic  N/A
   linux-firmware                             1.127.19
   0: phy0: Wireless LAN
   	Soft blocked: no
   	Hard blocked: no
  Tags:  trusty
  Uname: Linux 3.19.0-25-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
  WifiSyslog: Dec 27 13:38:38 michael wpa_supplicant[815]: wlan1: CTRL-EVENT-SCAN-STARTED
  _MarkForUpload: True
  dmi.bios.date: 03/26/2007
  dmi.bios.vendor: Hewlett-Packard
  dmi.bios.version: 68YTT Ver. F.03
  dmi.board.name: 30C2
  dmi.board.vendor: Hewlett-Packard
  dmi.board.version: KBC Version 71.21
  dmi.chassis.asset.tag: CNU7201T8J
  dmi.chassis.type: 10
  dmi.chassis.vendor: Hewlett-Packard
  dmi.modalias: dmi:bvnHewlett-Packard:bvr68YTTVer.F.03:bd03/26/2007:svnHewlett-Packard:pnHPCompaq6715s(RU655ET#AK8):pvrF.03:rvnHewlett-Packard:rn30C2:rvrKBCVersion71.21:cvnHewlett-Packard:ct10:cvr:
  dmi.product.name: HP Compaq 6715s (RU655ET#AK8)
  dmi.product.version: F.03
  dmi.sys.vendor: Hewlett-Packard

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