[Bug 398059] Re: system does not boot due to device-mapper error

[Andy Whitcroft]

It seems that a version of this patch has been mainlined since
2.6.31-rc4 and will be in the next rebase of the Karmic kernel which
should occur this week:

  commit 5dea271b6d87bd1d79a59c1d5baac2596a841c37
  Author: Mike Snitzer <snitzer at redhat.com>
  Date:   Thu Jul 23 20:30:42 2009 +0100

    dm table: pass correct dev area size to device_area_is_valid
    
    Incorrect device area lengths are being passed to device_area_is_valid().
    
    The regression appeared in 2.6.31-rc1 through commit
    754c5fc7ebb417b23601a6222a6005cc2e7f2913.
    
    With the dm-stripe target, the size of the target (ti->len) was used
    instead of the stripe_width (ti->len/#stripes).  An example of a
    consequent incorrect error message is:
    
      device-mapper: table: 254:0: sdb too small for target
    
    Signed-off-by: Mike Snitzer <snitzer at redhat.com>
    Signed-off-by: Alasdair G Kergon <agk at redhat.com>

-- 
system does not boot due to device-mapper error
https://bugs.launchpad.net/bugs/398059
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