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[Ivan Zakharyaschev <1495116@xxxxxxxxxxxxxxxxxx>]

Perhaps, this combination of hardware and amd64 kernel is simply buggy,
and it would be unstable in a completely amd64 system. I should test
that to be sure.

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https://bugs.launchpad.net/bugs/1495116

Title:
  booting with amd64 kernel and completely i386 userland is unstable
  during the system upstart

Status in linux package in Ubuntu:
  Confirmed
Status in systemd package in Ubuntu:
  Confirmed
Status in udev package in Ubuntu:
  Confirmed
Status in upstart package in Ubuntu:
  Confirmed

Bug description:
  I wanted to run my 14.10 (Utopic) i386 system with the amd64 kernel,
  so I added that architecture and apt-get-installed the amd64 linux-
  image and linux-image-extra (I learned this was possible thanks to the
  advice at http://askubuntu.com/a/635774/19753 ).

  However, the system upstart procedure more often fails than not: it
  fails by rebooting the computer. (Only around 1 time of 4 is
  successful.)

  A limited system start is (probably, always) successful: either with
  init=/bin/bash parameter to the kernel, or choosing the recovery boot
  option. (However, if I "resume" from the recovery menu, or run "exec
  init" in bash, then the upstart procedure is similarly unstable: it
  usually fails/crashes and reboots.)

  I checked my suspection that  the video driver (nouveau) and X might
  be involved, but that turned out not true: the upstart procedure is
  similarly unstable with "nomodesetting" kernel parameter and without,
  booting into runlevel 3 or the default one.

  Perhaps, I'd like to debug the upstart procedure step-by-step to
  detect which step makes the system crash and reboot, but I don't know
  how. As concerns the timing, the moment the reboot happens can be
  different: it can happen rather early (when I see the message about
  activating the swap) or much later.

  If the system upstart procedure has completed successfully, then it
  works in a quite stable manner and doesn't crash/reboot. So, there is
  something bad specifically during the system upstart procedure.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.10
  Package: upstart 1.13.2-0ubuntu2
  ProcVersionSignature: Ubuntu 3.16.0-44.59-generic 3.16.7-ckt14
  Uname: Linux 3.16.0-44-generic x86_64
  ApportVersion: 2.14.7-0ubuntu8.5
  Architecture: i386
  CurrentDesktop: Unity
  Date: Sat Sep 12 18:36:28 2015
  InstallationDate: Installed on 2014-06-04 (464 days ago)
  InstallationMedia: Ubuntu 12.04.4 LTS "Precise Pangolin" - Release i386 (20140204)
  ProcKernelCmdline: BOOT_IMAGE=/boot/vmlinuz-3.16.0-44-generic root=UUID=980299a2-fde5-4f39-acb0-189f528b8485 ro nosplash
  SourcePackage: upstart
  UpgradeStatus: Upgraded to utopic on 2015-09-11 (0 days ago)
  UpstartBugCategory: System
  UpstartRunningSessionVersion: upstart 1.13.2
  UpstartRunningSystemVersion: init (upstart 1.13.2)
  modified.conffile..etc.at.deny: [inaccessible: [Errno 13] Отказано в доступе: '/etc/at.deny']
  modified.conffile..etc.cron.daily.upstart: [modified]
  modified.conffile..etc.cups.cups.browsed.conf: [modified]
  modified.conffile..etc.default.apport: [modified]
  modified.conffile..etc.default.cups: [modified]
  modified.conffile..etc.init.d.binfmt.support: [modified]
  mtime.conffile..etc.X11.Xsession.d.99upstart: 2014-09-30T12:21:08
  mtime.conffile..etc.cron.daily.upstart: 2014-09-30T12:27:13
  mtime.conffile..etc.cups.cups.browsed.conf: 2015-09-06T09:29:16.410097
  mtime.conffile..etc.default.apport: 2014-06-05T12:49:10.316398
  mtime.conffile..etc.default.cups: 2015-09-06T09:20:49.891585
  mtime.conffile..etc.init.d.binfmt.support: 2014-09-30T12:21:08
  mtime.conffile..etc.upstart.xsessions: 2014-09-30T12:21:08
  --- 
  ApportVersion: 2.14.7-0ubuntu8.5
  Architecture: i386
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  marsmorgana   1972 F.... pulseaudio
  CRDA:
   country RU: DFS-UNSET
   	(2402 - 2482 @ 40), (N/A, 20)
   	(5735 - 5835 @ 20), (N/A, 30)
  CurrentDesktop: Unity
  DistroRelease: Ubuntu 14.10
  HibernationDevice: RESUME=UUID=9267c811-3a01-4484-b968-c08582280d81
  InstallationDate: Installed on 2014-06-04 (464 days ago)
  InstallationMedia: Ubuntu 12.04.4 LTS "Precise Pangolin" - Release i386 (20140204)
  MachineType: SAMSUNG ELECTRONICS CO., LTD. R510/P510
  Package: upstart 1.13.2-0ubuntu2
  PackageArchitecture: i386
  ProcFB: 0 nouveaufb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.16.0-44-generic root=UUID=980299a2-fde5-4f39-acb0-189f528b8485 ro nosplash
  ProcKernelCmdline: BOOT_IMAGE=/boot/vmlinuz-3.16.0-44-generic root=UUID=980299a2-fde5-4f39-acb0-189f528b8485 ro nosplash
  ProcVersionSignature: Ubuntu 3.16.0-44.59-generic 3.16.7-ckt14
  RelatedPackageVersions:
   linux-restricted-modules-3.16.0-44-generic N/A
   linux-backports-modules-3.16.0-44-generic  N/A
   linux-firmware                             1.138.1
  Tags: utopic utopic third-party-packages
  Uname: Linux 3.16.0-44-generic x86_64
  UpgradeStatus: Upgraded to utopic on 2015-09-11 (0 days ago)
  UpstartBugCategory: System
  UpstartRunningSessionVersion: upstart 1.13.2
  UpstartRunningSystemVersion: init (upstart 1.13.2)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
  _MarkForUpload: True
  dmi.bios.date: 09/26/2008
  dmi.bios.vendor: Phoenix Technologies Ltd.
  dmi.bios.version: 07LI.MP00.20080926.SCY
  dmi.board.name: R510/P510
  dmi.board.vendor: SAMSUNG ELECTRONICS CO., LTD.
  dmi.board.version: Not Applicable
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: SAMSUNG ELECTRONICS CO., LTD.
  dmi.chassis.version: N/A
  dmi.modalias: dmi:bvnPhoenixTechnologiesLtd.:bvr07LI.MP00.20080926.SCY:bd09/26/2008:svnSAMSUNGELECTRONICSCO.,LTD.:pnR510/P510:pvrNotApplicable:rvnSAMSUNGELECTRONICSCO.,LTD.:rnR510/P510:rvrNotApplicable:cvnSAMSUNGELECTRONICSCO.,LTD.:ct10:cvrN/A:
  dmi.product.name: R510/P510
  dmi.product.version: Not Applicable
  dmi.sys.vendor: SAMSUNG ELECTRONICS CO., LTD.
  modified.conffile..etc.at.deny: [inaccessible: [Errno 13] Отказано в доступе: u'/etc/at.deny']
  modified.conffile..etc.cups.cups.browsed.conf: [modified]
  modified.conffile..etc.default.apport: [modified]
  modified.conffile..etc.default.cups: [modified]
  modified.conffile..etc.init.d.binfmt.support: [modified]
  mtime.conffile..etc.X11.Xsession.d.99upstart: 2014-09-30T12:21:08
  mtime.conffile..etc.cron.daily.upstart: 2014-09-30T12:27:13
  mtime.conffile..etc.cups.cups.browsed.conf: 2015-09-06T09:29:16.410097
  mtime.conffile..etc.default.apport: 2014-06-05T12:49:10.316399
  mtime.conffile..etc.default.cups: 2015-09-06T09:20:49.891586
  mtime.conffile..etc.init.d.binfmt.support: 2014-09-30T12:21:08
  mtime.conffile..etc.upstart.xsessions: 2014-09-30T12:21:08
  --- 
  ApportVersion: 2.17.2-0ubuntu1.4
  Architecture: i386
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  marsmorgana   2343 F.... pulseaudio
  CurrentDesktop: Unity
  DistroRelease: Ubuntu 15.04
  HibernationDevice: RESUME=UUID=9267c811-3a01-4484-b968-c08582280d81
  InstallationDate: Installed on 2014-06-04 (465 days ago)
  InstallationMedia: Ubuntu 12.04.4 LTS "Precise Pangolin" - Release i386 (20140204)
  MachineType: SAMSUNG ELECTRONICS CO., LTD. R510/P510
  Package: upstart
  PackageArchitecture: i386
  ProcFB: 0 nouveaufb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-28-generic root=UUID=980299a2-fde5-4f39-acb0-189f528b8485 ro recovery init=/sbin/upstart
  ProcVersionSignature: Ubuntu 3.19.0-28.30-generic 3.19.8-ckt5
  RelatedPackageVersions:
   linux-restricted-modules-3.19.0-28-generic N/A
   linux-backports-modules-3.19.0-28-generic  N/A
   linux-firmware                             1.143.3
  SystemdDelta:
   [EXTENDED]   /lib/systemd/system/systemd-timesyncd.service → /lib/systemd/system/systemd-timesyncd.service.d/disable-with-time-daemon.conf
   [EXTENDED]   /etc/systemd/system/display-manager.service → /lib/systemd/system/display-manager.service.d/xdiagnose.conf
   
   2 overridden configuration files found.
  Tags:  vivid vivid
  Uname: Linux 3.19.0-28-generic x86_64
  UpgradeStatus: Upgraded to vivid on 2015-09-13 (0 days ago)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
  _MarkForUpload: True
  dmi.bios.date: 09/26/2008
  dmi.bios.vendor: Phoenix Technologies Ltd.
  dmi.bios.version: 07LI.MP00.20080926.SCY
  dmi.board.name: R510/P510
  dmi.board.vendor: SAMSUNG ELECTRONICS CO., LTD.
  dmi.board.version: Not Applicable
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: SAMSUNG ELECTRONICS CO., LTD.
  dmi.chassis.version: N/A
  dmi.modalias: dmi:bvnPhoenixTechnologiesLtd.:bvr07LI.MP00.20080926.SCY:bd09/26/2008:svnSAMSUNGELECTRONICSCO.,LTD.:pnR510/P510:pvrNotApplicable:rvnSAMSUNGELECTRONICSCO.,LTD.:rnR510/P510:rvrNotApplicable:cvnSAMSUNGELECTRONICSCO.,LTD.:ct10:cvrN/A:
  dmi.product.name: R510/P510
  dmi.product.version: Not Applicable
  dmi.sys.vendor: SAMSUNG ELECTRONICS CO., LTD.
  --- 
  ApportVersion: 2.14.1-0ubuntu3.13
  Architecture: i386
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  imz        2878 F.... pulseaudio
   /dev/snd/controlC0:  imz        2878 F.... pulseaudio
  CurrentDesktop: Unity
  CustomUdevRuleFiles: z80_user.rules
  DistroRelease: Ubuntu 14.04
  HibernationDevice: RESUME=UUID=9574c132-46b1-48be-96d4-785ad470c33e
  InstallationDate: Installed on 2012-02-06 (1323 days ago)
  InstallationMedia: Ubuntu 10.04.3 LTS "Lucid Lynx" - Release i386 (20110720.1)
  MachineType: SAMSUNG ELECTRONICS CO., LTD. R425/R525
  Package: upstart
  PackageArchitecture: i386
  ProcFB: 0 radeondrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-63-generic root=UUID=77b67b8f-a885-42a6-9bf6-6ff3ce2136f0 ro nosplash
  ProcVersionSignature: Ubuntu 3.13.0-63.103-generic 3.13.11-ckt25
  RelatedPackageVersions:
   linux-restricted-modules-3.13.0-63-generic N/A
   linux-backports-modules-3.13.0-63-generic  N/A
   linux-firmware                             1.127.15
  Tags:  trusty trusty
  Uname: Linux 3.13.0-63-generic x86_64
  UpgradeStatus: Upgraded to trusty on 2015-09-15 (6 days ago)
  UserGroups: adm cdrom dialout dip fax floppy fuse plugdev tape video
  _MarkForUpload: True
  dmi.bios.date: 07/03/2010
  dmi.bios.vendor: Phoenix Technologies Ltd.
  dmi.bios.version: 05NS
  dmi.board.name: R425/R525
  dmi.board.vendor: SAMSUNG ELECTRONICS CO., LTD.
  dmi.board.version: Not Applicable
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: SAMSUNG ELECTRONICS CO., LTD.
  dmi.chassis.version: N/A
  dmi.modalias: dmi:bvnPhoenixTechnologiesLtd.:bvr05NS:bd07/03/2010:svnSAMSUNGELECTRONICSCO.,LTD.:pnR425/R525:pvrNotApplicable:rvnSAMSUNGELECTRONICSCO.,LTD.:rnR425/R525:rvrNotApplicable:cvnSAMSUNGELECTRONICSCO.,LTD.:ct10:cvrN/A:
  dmi.product.name: R425/R525
  dmi.product.version: Not Applicable
  dmi.sys.vendor: SAMSUNG ELECTRONICS CO., LTD.

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