[Bug 1091695] Re: dmraid creates too small of a device (32-bit truncation)

[Carlo de Wolf]

Related to https://bugs.launchpad.net/ubuntu/+source/dmraid/+bug/599255
but the end conclusion there seems to be a controller issue.

-- 
You received this bug notification because you are a member of Ubuntu
Foundations Bugs, which is subscribed to dmraid in Ubuntu.
https://bugs.launchpad.net/bugs/1091695

Title:
  dmraid creates too small of a device (32-bit truncation)

Status in “dmraid” package in Ubuntu:
  New

Bug description:
  Device mapper goes bananas on the provided table:

  [    1.530703] device-mapper: table: 252:4: dm-0 too small for target: start=268699648, len=9792587776, dev_size=2545099264
  [    1.530985] device-mapper: table: 252:4: dm-0 too small for target: start=10061287424, len=1073745408, dev_size=2545099264

  As can be seen, the actual device created is too small:

  # dmraid -r
  /dev/sdc: isw, "isw_dbjcghcgcd", GROUP, ok, 5860533166 sectors, data@ 0
  /dev/sdb: isw, "isw_dbjcghcgcd", GROUP, ok, 5860533166 sectors, data@ 0
  # dmraid -s
  *** Group superset isw_dbjcghcgcd
  --> Active Subset
  name   : isw_dbjcghcgcd_Volume0
  size   : 2545099264
  stride : 256
  type   : stripe
  status : ok
  subsets: 0
  devs   : 2
  spares : 0

  2545099264 = 0x97B32200

  Using the following on dmsetup works:

  0 11135033344 striped 2 256 /dev/sdb 0 /dev/sdc 0

  11135033344 = 0x297B32000

  The GPT partition does not have that last 512 blocks listed and parted
  would complain otherwise.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/dmraid/+bug/1091695/+subscriptions