[Bug 84821] Re: "attempt to access beyond end of device" when creating LVM snapshot

[A. Karl Kornel]

Here's a control example, showing the output of lvcreate when there are
no problems reported:

kornelak at npbbz:/home/bugzilla/stage$ dmesg|tail
[17180786.720000] EXT3-fs: mounted filesystem with ordered data mode.
[17180799.652000] kjournald starting.  Commit interval 5 seconds
[17180799.656000] EXT3 FS on dm-41, internal journal
[17180799.656000] EXT3-fs: recovery complete.
[17180799.656000] EXT3-fs: mounted filesystem with ordered data mode.
[17203415.252000] ibm_acpi: ec object not found
[17808026.704000] ibm_acpi: ec object not found
[18412815.972000] ibm_acpi: ec object not found
[19017364.116000] ibm_acpi: ec object not found
[19622027.484000] ibm_acpi: ec object not found
kornelak at npbbz:/home/bugzilla/stage$ cd /var/lib/mysql/main
kornelak at npbbz:/var/lib/mysql/main$ sudo lvs
  LV                  VG         Attr   LSize  Origin Snap%  Move Log Copy%
  Database_Logs       VolGroup00 -wi-ao 10.00G
  Database_Main       VolGroup00 -wi-ao  5.00G
  Database_Stage_Orig VolGroup00 -wi-ao 35.00G
  Database_Transition VolGroup00 -wi-ao 80.00G
  Home                VolGroup00 -wi-a-  3.00G
  Live                VolGroup00 -wi-ao 94.00G
  Root                VolGroup00 -wi-a- 10.00G
  Stage_Orig          VolGroup00 -wi-ao 76.00G
  Swap                VolGroup00 -wi-ao  2.00G
  root                VolGroup00 -wi-ao 15.00G
kornelak at npbbz:/var/lib/mysql/main$ sudo lvcreate --verbose --snapshot --size 5G --name Stage_31743 VolGroup00/Stage_Orig
    Setting chunksize to 16 sectors.
    Finding volume group "VolGroup00"
    Archiving volume group "VolGroup00" metadata (seqno 473).
    Creating logical volume Stage_31743
    Creating volume group backup "/etc/lvm/backup/VolGroup00" (seqno 474).
    Found volume group "VolGroup00"
    Creating VolGroup00-Stage_31743
    Loading VolGroup00-Stage_31743 table
    Resuming VolGroup00-Stage_31743 (254:4)
    Zeroing start of logical volume "Stage_31743"
    Found volume group "VolGroup00"
    Removing VolGroup00-Stage_31743 (254:4)
    Found volume group "VolGroup00"
    Found volume group "VolGroup00"
    Found volume group "VolGroup00"
    Creating VolGroup00-Stage_Orig-real
    Loading VolGroup00-Stage_Orig-real table
    Resuming  (254:4)
    Loading VolGroup00-Stage_Orig table
    Creating VolGroup00-Stage_31743-cow
    Loading VolGroup00-Stage_31743-cow table
    Resuming  (254:8)
    Creating VolGroup00-Stage_31743
    Loading VolGroup00-Stage_31743 table
    Suspending VolGroup00-Stage_Orig (254:5)
    Suspending VolGroup00-Stage_Orig-real (254:4)
    Found volume group "VolGroup00"
    Loading VolGroup00-Stage_Orig-real table
    Suppressed VolGroup00-Stage_Orig-real identical table reload.
    Resuming VolGroup00-Stage_Orig-real (254:4)
    Loading VolGroup00-Stage_31743-cow table
    Suppressed VolGroup00-Stage_31743-cow identical table reload.
    Resuming VolGroup00-Stage_31743 (254:30)
    Resuming VolGroup00-Stage_Orig (254:5)
    Creating volume group backup "/etc/lvm/backup/VolGroup00" (seqno 475).
  Logical volume "Stage_31743" created
kornelak at npbbz:/var/lib/mysql/main$ dmesg|tail
[17180786.720000] EXT3-fs: mounted filesystem with ordered data mode.
[17180799.652000] kjournald starting.  Commit interval 5 seconds
[17180799.656000] EXT3 FS on dm-41, internal journal
[17180799.656000] EXT3-fs: recovery complete.
[17180799.656000] EXT3-fs: mounted filesystem with ordered data mode.
[17203415.252000] ibm_acpi: ec object not found
[17808026.704000] ibm_acpi: ec object not found
[18412815.972000] ibm_acpi: ec object not found
[19017364.116000] ibm_acpi: ec object not found
[19622027.484000] ibm_acpi: ec object not found
kornelak at npbbz:/var/lib/mysql/main$ sudo lvs
  LV                  VG         Attr   LSize  Origin     Snap%  Move Log Copy%
  Database_Logs       VolGroup00 -wi-ao 10.00G
  Database_Main       VolGroup00 -wi-ao  5.00G
  Database_Stage_Orig VolGroup00 -wi-ao 35.00G
  Database_Transition VolGroup00 -wi-ao 80.00G
  Home                VolGroup00 -wi-a-  3.00G
  Live                VolGroup00 -wi-ao 94.00G
  Root                VolGroup00 -wi-a- 10.00G
  Stage_31743         VolGroup00 swi-a-  5.00G Stage_Orig   0.00
  Stage_Orig          VolGroup00 owi-ao 76.00G
  Swap                VolGroup00 -wi-ao  2.00G
  root                VolGroup00 -wi-ao 15.00G
kornelak at npbbz:/var/lib/mysql/main$

-- 
"attempt to access beyond end of device" when creating LVM snapshot
https://bugs.launchpad.net/bugs/84821
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