** Description changed:

  After the grub boot menu time-out my system often locks up with a variety of 
messages or just a blank screen.
  Sometimes boot up is successful, and the system is reasonably stable, but 
there are some signs of instability such as occasional lock-ups.
  I've lived with the problem for several ubuntu releases. I've changed the 
disk but the problem persists.
  
  dmesg reports:
  [ 3711.960540] ata3.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x6
  [ 3711.960546] ata3.00: BMDMA stat 0x26
  [ 3711.960550] ata3.00: failed command: READ DMA EXT
  [ 3711.960558] ata3.00: cmd 25/00:a0:f8:a2:12/00:00:b6:00:00/e0 tag 0 dma 
81920 in
  [ 3711.960559]          res 51/84:2f:f8:a2:12/84:00:b6:00:00/e0 Emask 0x30 
(host bus error)
  [ 3711.960563] ata3.00: status: { DRDY ERR }
  [ 3711.960565] ata3.00: error: { ICRC ABRT }
  [ 3711.960576] ata3: soft resetting link
  [ 3712.160930] ata3.00: configured for UDMA/33
  [ 3712.160949] ata3: EH complete
  [ 4007.818433] ACPI Warning: Incorrect checksum in table [OEMB] - 0x18, 
should be 0x17 (20110112/tbutils-314)
  [ 4007.818608] ACPI Warning: Incorrect checksum in table [OEMB] - 0x18, 
should be 0x17 (20110112/tbutils-314)
+ 
+ Note: The ACPI Warnings don't usually occur - just a one off.
  
  Might be related to bug Bug #591532.
  
  ProblemType: Bug
  DistroRelease: Ubuntu 11.04
  Package: linux-image-2.6.38-8-generic 2.6.38-8.42
  ProcVersionSignature: Ubuntu 2.6.38-8.42-generic 2.6.38.2
  Uname: Linux 2.6.38-8-generic x86_64
  AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23.
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  peter      1907 F.... pulseaudio
   /dev/snd/pcmC0D0p:   peter      1907 F...m pulseaudio
  CRDA: Error: [Errno 2] No such file or directory
  Card0.Amixer.info:
   Card hw:0 'Intel'/'HDA Intel at 0xdfdf8000 irq 19'
     Mixer name : 'Analog Devices AD1988B'
     Components : 'HDA:11d4198b,104381f6,00100400'
     Controls      : 48
     Simple ctrls  : 26
  Date: Sun Jun  5 12:19:30 2011
  HibernationDevice: RESUME=UUID=c5e44593-571e-4d9e-9c70-319e99eafa20
  InstallationMedia: Kubuntu 11.04 "Natty Narwhal" - Beta amd64 (20110413)
  IwConfig:
   lo        no wireless extensions.
  
   eth0      no wireless extensions.
  MachineType: System manufacturer System Product Name
  ProcEnviron:
   LANGUAGE=en_GB:en
   PATH=(custom, user)
   LANG=en_GB.UTF-8
   SHELL=/bin/bash
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.38-8-generic 
root=UUID=16b46e88-b808-427a-92f0-ec688459e515 ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-2.6.38-8-generic N/A
   linux-backports-modules-2.6.38-8-generic  N/A
   linux-firmware                            1.52
  RfKill:
   0: hci0: Bluetooth
    Soft blocked: no
    Hard blocked: no
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 01/29/2008
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: 0302
  dmi.board.asset.tag: To Be Filled By O.E.M.
  dmi.board.name: P5L8L-SE
  dmi.board.vendor: ASUSTeK Computer INC.
  dmi.board.version: Rev 1.xx
  dmi.chassis.asset.tag: Asset-1234567890
  dmi.chassis.type: 3
  dmi.chassis.vendor: Chassis Manufacture
  dmi.chassis.version: Chassis Version
  dmi.modalias: 
dmi:bvnAmericanMegatrendsInc.:bvr0302:bd01/29/2008:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKComputerINC.:rnP5L8L-SE:rvrRev1.xx:cvnChassisManufacture:ct3:cvrChassisVersion:
  dmi.product.name: System Product Name
  dmi.product.version: System Version
  dmi.sys.vendor: System manufacturer

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https://bugs.launchpad.net/bugs/793111

Title:
  ATA - DRDY, ICRC, ACPI Errors On Boot Up

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