[Bug 1030333] Re: Problem with IMSM Raid

[Dmitrijs Ledkovs]

What is the package version of mdadm? E.g. $ dpkg -l mdadm
Are you using precise or quantal?
If you are using precise, can you try mdadm from precise-proposed?

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Title:
  Problem with IMSM Raid

Status in “mdadm” package in Ubuntu:
  Confirmed
Status in “mdadm” source package in Precise:
  Confirmed
Status in “mdadm” source package in Quantal:
  Confirmed

Bug description:
  I use two 2TB Enterprise WD Disks on a Intel Server Board SK1200KP
  with E3-1220L CPU.

  I created a container array for IMSM metadata.
  mdadm --create --verbose /dev/md/0 /dev/sd[c-d] --raid-devices 2 --metadata imsm

  Then I created an array based on the imsm container.
  mdadm --create /dev/md/1 /dev/md/0 --raid-devices 2 --level 1 -c 128 -z $((1836*1024*1024))

  Then I tried to access /dev/md1 using parted and the kernel panic occured.
  ...
  [ 150.883146] md/raid1:md1: not clean -- starting background reconstruction
  [  150.883150] md/raid1:md1: active with 2 out of 2 mirrors
  [  150.883181] md1: detected capacity change from 0 to 1971389988864
  [  150.885868]  md1: unknown partition table
  [  211.123566] ------------[ cut here ]------------
  [  211.123582] kernel BUG at /build/buildd/linux-3.2.0/drivers/md/md.c:6923!
  [  211.123592] invalid opcode: 0000 [#1] SMP 
  [  211.123602] CPU 1 
  [  211.123607] Modules linked in: snd_hda_codec_hdmi joydev hid_logitech ff_memless bridge stp usbhid nouveau hid psmouse ttm serio_raw drm_kms_helper drm snd_hda_intel snd_hda_codec snd_hwdep snd_pcm snd_timer snd soundcore snd_page_alloc i2c_algo_bit mxm_wmi wmi video mei(C) mac_hid lp parport raid10 raid456 async_pq async_xor xor async_memcpy async_raid6_recov raid6_pq async_tx e1000e raid1 raid0 multipath linear
  [  211.123741] 
  [  211.123747] Pid: 1724, comm: parted Tainted: G         C   3.2.0-27-generic #43-Ubuntu                  /S1200KP
  ...

  # mdadm --detail-platform
         Platform : Intel(R) Matrix Storage Manager
          Version : 11.1.0.1413
      RAID Levels : raid0 raid1 raid10 raid5
      Chunk Sizes : 4k 8k 16k 32k 64k 128k
        Max Disks : 6
      Max Volumes : 2
   I/O Controller : /sys/devices/pci0000:00/0000:00:1f.2 (SATA)
            Port0 : /dev/sda (EL125500W6******)
            Port1 : /dev/sdb (J8400076******)
            Port2 : /dev/sdc (WD-WCAVY7******)
            Port3 : /dev/sdd (WD-WCAVY7******)
            Port4 : - no device attached -
            Port5 : - no device attached -

  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: linux-image-3.2.0-27-generic 3.2.0-27.43
  ProcVersionSignature: Ubuntu 3.2.0-27.43-generic 3.2.21
  Uname: Linux 3.2.0-27-generic x86_64
  AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
  AplayDevices: Error: [Errno 2] No such file or directory
  ApportVersion: 2.0.1-0ubuntu11
  Architecture: amd64
  ArecordDevices: Error: [Errno 2] No such file or directory
  AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/by-path', '/dev/snd/controlC0', '/dev/snd/hwC0D0', '/dev/snd/hwC0D1', '/dev/snd/hwC0D2', '/dev/snd/hwC0D3', '/dev/snd/pcmC0D3p', '/dev/snd/pcmC0D7p', '/dev/snd/pcmC0D8p', '/dev/snd/pcmC0D9p', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1:
  CRDA: Error: [Errno 2] No such file or directory
  Card0.Amixer.info: Error: [Errno 2] No such file or directory
  Card0.Amixer.values: Error: [Errno 2] No such file or directory
  Date: Sat Jul 28 18:05:02 2012
  HibernationDevice: RESUME=UUID=a0c53194-877d-46b4-8c91-bd964e679cb9
  InstallationMedia: Ubuntu-Server 12.04 LTS "Precise Pangolin" - Release amd64 (20120424.1)
  Lsusb:
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
   Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
   Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
   Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
   Bus 002 Device 003: ID 046d:c50c Logitech, Inc. Cordless Desktop S510
  ProcEnviron:
   LANGUAGE=en_GB:en
   TERM=rxvt
   PATH=(custom, no user)
   LANG=en_GB.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 nouveaufb
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.2.0-27-generic root=UUID=a6f09155-f838-44fd-b8db-b30c630649db ro
  RelatedPackageVersions:
   linux-restricted-modules-3.2.0-27-generic N/A
   linux-backports-modules-3.2.0-27-generic  N/A
   linux-firmware                            1.79
  RfKill: Error: [Errno 2] No such file or directory
  SourcePackage: linux
  StagingDrivers: mei
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 05/18/2012
  dmi.bios.vendor: Intel Corp.
  dmi.bios.version: KPC2060H.86B.0022.2012.0518.1049
  dmi.board.asset.tag: To be filled by O.E.M.
  dmi.board.name: S1200KP
  dmi.board.vendor: Intel Corporation
  dmi.board.version: AAG34877-102
  dmi.chassis.type: 3
  dmi.modalias: dmi:bvnIntelCorp.:bvrKPC2060H.86B.0022.2012.0518.1049:bd05/18/2012:svn:pn:pvr:rvnIntelCorporation:rnS1200KP:rvrAAG34877-102:cvn:ct3:cvr:

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