apport information

** Attachment added: "OpalElog.tar.gz"
   
https://bugs.launchpad.net/bugs/1773162/+attachment/5143802/+files/OpalElog.tar.gz

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https://bugs.launchpad.net/bugs/1773162

Title:
  4.15.0-22-generic fails to boot on IBM S822LC (POWER8 (raw), altivec
  supported)

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  Upgrading from 16.04 to 18.04 on a IBM S822LC the system does not boot
  with 4.15.0-22-generic and is in a reboot cycle.

  ```
  Exiting petitboot. Type 'exit' to return.
  The system is going down NOW!
  Sent SIGTERM to all processes
  Sent SIGKILL to all processes
  [31775213631,3] OPAL: Trying a CPU re-init with flags: 0x1
  [32097001879,3] OPAL: Trying a CPU re-init with flags: 0x2
  [    2.660186] Bad kernel stack pointer 7fffcd511100 at c00000000000b9ec
  [    2.660382] Oops: Bad kernel stack pointer, sig: 6 [#1]
  [    2.660422] LE SMP NR_CPUS=2048 NUMA PowerNV
  [    2.660462] Modules linked in:
  [    2.660494] CPU: 63 PID: 1201 Comm: modprobe Not tainted 4.15.0-22-generic 
#24-Ubuntu
  [    2.660549] NIP:  c00000000000b9ec LR: 0000000000000000 CTR: 
0000000000000000
  [    2.660603] REGS: c00000003fd0bd40 TRAP: 0300   Not tainted  
(4.15.0-22-generic)
  [    2.660657] MSR:  9000000000001031 <SF,HV,ME,IR,DR,LE>  CR: 00000000  XER: 
00000000
  [    2.660713] CFAR: c00000000000b934 DAR: 00000000000200f0 DSISR: 40000000 
SOFTE: -4611686018408771536 
  [    2.660713] GPR00: 0000000000000000 00007fffcd511100 0000000000000000 
0000000000000000 
  [    2.660713] GPR04: 0000000000000000 0000000000000000 0000000000000000 
0000000000000000 
  [    2.660713] GPR08: 0000000000000000 0000000000000000 0000000000000000 
0000000000000000 
  [    2.660713] GPR12: 000075501b231700 00000000000200f0 0000000000000000 
0000000000000000 
  [    2.660713] GPR16: 0000000000000000 0000000000000000 0000000000000000 
0000000000000000 
  [    2.660713] GPR20: 0000000000000000 0000000000000000 0000000000000000 
0000000000000000 
  [    2.660713] GPR24: 0000000000000000 0000000000000000 0000000000000000 
0000000000000000 
  [    2.660713] GPR28: 0000000000000000 0000000000000000 0000000000000000 
0000000000000000 
  [    2.661203] NIP [c00000000000b9ec] fast_exception_return+0x9c/0x184
  [    2.661249] LR [0000000000000000]           (null)
  [    2.661285] Call Trace:
  [    2.661303] Instruction dump:
  [    2.661331] e84101a0 7c4ff120 e8410170 7c5a03a6 e8010070 e8410080 e8610088 
e8810090 
  [    2.661387] e8210078 7db243a6 7db142a6 7c0004ac <e9ad0000> 63ff0000 
7db242a6 48000010 
  [    2.661445] ---[ end trace b607b09fe6490607 ]---
  […]
  ```

  Please find the full log attached. Selecting Linux 4.4.0-124-generic
  works.

  ```
  $ uname -a
  Linux flughafenberlinbrandenburgwillybrandt 4.4.0-124-generic #148-Ubuntu SMP 
Wed May 2 13:02:22 UTC 2018 ppc64le ppc64le ppc64le GNU/Linux
  $ dpkg -l linux-image-4.15.0-22-generic
  Desired=Unknown/Install/Remove/Purge/Hold
  | Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend
  |/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
  ||/ Name                                               Version                
        Architecture                   Description
  
+++-==================================================-==============================-==============================-=========================================================================================================
  ii  linux-image-4.15.0-22-generic                      4.15.0-22.24           
        ppc64el                        Signed kernel image generic
  $ more /etc/os-release 
  NAME="Ubuntu"
  VERSION="18.04 LTS (Bionic Beaver)"
  ID=ubuntu
  ID_LIKE=debian
  PRETTY_NAME="Ubuntu 18.04 LTS"
  VERSION_ID="18.04"
  HOME_URL="https://www.ubuntu.com/";
  SUPPORT_URL="https://help.ubuntu.com/";
  BUG_REPORT_URL="https://bugs.launchpad.net/ubuntu/";
  
PRIVACY_POLICY_URL="https://www.ubuntu.com/legal/terms-and-policies/privacy-policy";
  VERSION_CODENAME=bionic
  UBUNTU_CODENAME=bionic
  ```
  --- 
  AlsaDevices:
   total 0
   crw-rw---- 1 root audio 116,  1 May 23 16:40 seq
   crw-rw---- 1 root audio 116, 33 May 23 16:40 timer
  AplayDevices: Error: [Errno 2] No such file or directory: 'aplay': 'aplay'
  ApportVersion: 2.20.9-0ubuntu7
  Architecture: ppc64el
  ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord': 
'arecord'
  AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', 
'/dev/snd/timer'] failed with exit code 1:
  DistroRelease: Ubuntu 18.04
  IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig': 'iwconfig'
  Package: linux (not installed)
  PciMultimedia:
   
  ProcFB: 0 astdrmfb
  ProcKernelCmdLine: root=UUID=2c3dd738-785a-469b-843e-9f0ba8b47b0d ro 
rootflags=subvol=@ quiet splash
  ProcLoadAvg: 0.01 0.08 0.04 2/1373 28071
  ProcSwaps: Filename                           Type            Size    Used    
Priority
  ProcVersion: Linux version 4.4.0-124-generic (buildd@bos02-ppc64el-008) (gcc 
version 5.4.0 20160609 (Ubuntu/IBM 5.4.0-6ubuntu1~16.04.9) ) #148-Ubuntu SMP 
Wed May 2 13:02:22 UTC 2018
  ProcVersionSignature: Ubuntu 4.4.0-124.148-generic 4.4.117
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-124-generic N/A
   linux-backports-modules-4.4.0-124-generic  N/A
   linux-firmware                             1.173
  RfKill: Error: [Errno 2] No such file or directory: 'rfkill': 'rfkill'
  Tags:  bionic
  Uname: Linux 4.4.0-124-generic ppc64le
  UpgradeStatus: Upgraded to bionic on 2018-05-23 (0 days ago)
  UserGroups: adm edv libvirtd lxd sudo
  VarLogDump_list: total 0
  _MarkForUpload: True
  cpu_cores: Number of cores present = 20
  cpu_coreson: Number of cores online = 20
  cpu_smt: SMT=8

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