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[Joseph Salisbury <joseph.salisbury@xxxxxxxxxxxxx>]

** Also affects: linux (Ubuntu Wily)
   Importance: Critical
       Status: Incomplete

** Changed in: linux (Ubuntu Wily)
   Importance: Critical => High

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https://bugs.launchpad.net/bugs/1487662

Title:
  cciss driver crashes kernel during boot with wily kernel

Status in linux package in Ubuntu:
  Incomplete
Status in linux source package in Wily:
  Incomplete

Bug description:
  On a HP Proliant was running trusty with vivid kernel from backports
  originally. Worked fine with userspace upgrade to wily. When I
  rebooted with the wily linux-generic kernel however I got a stack
  dump:

  SW Raid1 on two CCISS based RAID0 disks, and dm_crypt. Kernel boots to
  prompt for cyrptoroot passphrase. After entering it and mounting
  entering the dm mapper init sequence the kernel crashes. I have a
  dropbear instance installed running from initramfs (for remote
  unlocking of root) and this is still runs.

  dmesg attached from server.
  --- 
  AlsaDevices:
   total 0
   crw-rw---- 1 root audio 116,  1 Aug 22 00:52 seq
   crw-rw---- 1 root audio 116, 33 Aug 22 00:52 timer
  AplayDevices: Error: [Errno 2] No such file or directory
  ApportVersion: 2.18-0ubuntu7
  Architecture: amd64
  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:
  DistroRelease: Ubuntu 15.10
  EcryptfsInUse: Yes
  HibernationDevice: RESUME=/dev/mapper/vg0-swap
  MachineType: HP ProLiant BL460c G1
  Package: linux (not installed)
  PciMultimedia:
   
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 radeondrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.19.0-26-generic root=/dev/mapper/vg0-root ro quiet nomdmonddf nomdmonisw
  ProcVersionSignature: Ubuntu 3.19.0-26.28~14.04.1-generic 3.19.8-ckt4
  RelatedPackageVersions:
   linux-restricted-modules-3.19.0-26-generic N/A
   linux-backports-modules-3.19.0-26-generic  N/A
   linux-firmware                             1.146
  RfKill: Error: [Errno 2] No such file or directory
  Tags:  wily uec-images
  Uname: Linux 3.19.0-26-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip libvirtd lpadmin plugdev sambashare sudo
  _MarkForUpload: True
  dmi.bios.date: 05/02/2011
  dmi.bios.vendor: HP
  dmi.bios.version: I15
  dmi.chassis.type: 23
  dmi.chassis.vendor: HP
  dmi.modalias: dmi:bvnHP:bvrI15:bd05/02/2011:svnHP:pnProLiantBL460cG1:pvr:cvnHP:ct23:cvr:
  dmi.product.name: ProLiant BL460c G1
  dmi.sys.vendor: HP

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