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["Christopher M. Penalver" <christopher.m.penalver@xxxxxxxxx>]

** Summary changed:

- Reboot sometimes fails on highbank
+ [ARM] Reboot sometimes fails on highbank

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https://bugs.launchpad.net/bugs/1061070

Title:
  [ARM] Reboot sometimes fails on highbank

Status in The Eilt project:
  New
Status in “linux” package in Ubuntu:
  Confirmed

Bug description:
  Reproduced on:

  Linux version 3.2.0-30-highbank (buildd@chort) (gcc version 4.6.3 (Ubuntu/Linaro 4.6.3-1ubuntu5) ) #48-Ubuntu SMP PREEMPT Fri Aug 24 20:04:03 UTC 2012 (Ubuntu 3.2.0-30.48-highbank 3.2.27)
  Linux version 3.2.0-32-highbank (buildd@musimon) (gcc version 4.6.3 (Ubuntu/Linaro 4.6.3-1ubuntu5) ) #51-Ubuntu SMP PREEMPT Thu Sep 27 00:36:21 UTC 2012 (Ubuntu 3.2.0-32.51-highbank 3.2.30)

  Evidently does not affect:

  Linux version 3.5.0-16-highbank (buildd@shedir) (gcc version 4.7.2
  (Ubuntu/Linaro 4.7.2-2ubuntu1) ) #25-Ubuntu SMP PREEMPT Sat Sep 29
  01:44:21 UTC 2012 (Ubuntu 3.5.0-16.25-highbank 3.5.4)

  When I use busybox's reboot command, I usually get:

  Freeing init memory: 176K
  pre-reboot
  sd 2:0:0:0: [sda] Synchronizing SCSI cache
  Restarting system.

  
  U-Boot 2012.07 (Sep 21 2012 - 14:54:04)

  Instead, sometimes I get:

  Freeing init memory: 176K
  pre-reboot
  sd 2:0:0:0: [sda] Synchronizing SCSI cache
  Restarting system.
  Reboot failed -- System halted

  To reproduce, I created an initrd that just has busybox and a simple
  /init sh script that just reboots. I set a node to persistently boot
  "pxe", and constantly served the same kernel and initrd, for a
  constantly cycling test. On affected kernels, this reproduces within
  around five reboots.

  Impact: when this strikes, MAAS fails to deploy nodes. MAAS needs
  three reboots to fully deploy nodes, so the MAAS failure probability
  is higher than a single reboot failure. This will cause great
  difficulty when using nodes at scale.

  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: linux-highbank 3.2.0.32.35
  ProcVersionSignature: User Name 3.2.0-31.50-highbank 3.2.28
  Uname: Linux 3.2.0-31-highbank armv7l
  AcpiTables:
   
  AlsaDevices:
   total 0
   crw-rw---T 1 root audio 116,  1 Oct  3 12:20 seq
   crw-rw---T 1 root audio 116, 33 Oct  3 12:20 timer
  AplayDevices: Error: [Errno 2] No such file or directory
  ApportVersion: 2.0.1-0ubuntu13
  Architecture: armhf
  ArecordDevices: Error: [Errno 2] No such file or directory
  AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1:
  CRDA: Error: [Errno 2] No such file or directory
  CurrentDmesg: eth0: no IPv6 routers present
  Date: Wed Oct  3 12:23:30 2012
  HibernationDevice: RESUME=UUID=c9ff4c94-9a06-45db-9517-811db708d878
  IwConfig: Error: [Errno 2] No such file or directory
  Lsusb: Error: command ['lsusb'] failed with exit code 1: unable to initialize libusb: -99
  PciMultimedia:
   
  ProcFB:
   
  ProcKernelCmdLine: console=ttyAMA0 root=UUID=cd7e02ed-5dad-4dff-ba5d-a5afe52991c1 nosplash
  ProcModules:
   
  RelatedPackageVersions:
   linux-restricted-modules-3.2.0-31-highbank N/A
   linux-backports-modules-3.2.0-31-highbank  N/A
   linux-firmware                             1.79.1
  RfKill: Error: [Errno 2] No such file or directory
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  --- 
  AcpiTables:
   
  AlsaDevices:
   total 0
   crw-rw---T 1 root audio 116,  1 Oct  3 12:20 seq
   crw-rw---T 1 root audio 116, 33 Oct  3 12:20 timer
  AplayDevices: Error: [Errno 2] No such file or directory
  ApportVersion: 2.0.1-0ubuntu13
  Architecture: armhf
  ArecordDevices: Error: [Errno 2] No such file or directory
  AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1:
  CRDA: Error: [Errno 2] No such file or directory
  CurrentDmesg: eth0: no IPv6 routers present
  DistroRelease: Ubuntu 12.04
  HibernationDevice: RESUME=UUID=c9ff4c94-9a06-45db-9517-811db708d878
  IwConfig: Error: [Errno 2] No such file or directory
  Lsusb: Error: command ['lsusb'] failed with exit code 1: unable to initialize libusb: -99
  Package: linux (not installed)
  PciMultimedia:
   
  ProcFB:
   
  ProcKernelCmdLine: console=ttyAMA0 root=UUID=cd7e02ed-5dad-4dff-ba5d-a5afe52991c1 nosplash
  ProcModules:
   
  ProcVersionSignature: User Name 3.2.0-31.50-highbank 3.2.28
  RelatedPackageVersions:
   linux-restricted-modules-3.2.0-31-highbank N/A
   linux-backports-modules-3.2.0-31-highbank  N/A
   linux-firmware                             1.79.1
  RfKill: Error: [Errno 2] No such file or directory
  Tags:  precise
  Uname: Linux 3.2.0-31-highbank armv7l
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo

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