Bug 13806

Summary: system does not boot due to device-mapper error
Product: IO/Storage Reporter: Roman Shtylman (shtylman)
Component: OtherAssignee: io_other
Severity: high CC: rjw
Priority: P1    
Hardware: All   
OS: Linux   
URL: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/398059
Kernel Version: 2.6.31+ Subsystem:
Regression: Yes Bisected commit-id:
Bug Depends on:    
Bug Blocks: 13615    

Description Roman Shtylman 2009-07-21 00:03:30 UTC
When trying to boot into any 2.6.31+ kernel my system hangs with the error:

"device-mapper: table: 252:0: sda too small for target"

The above error just keeps getting echoed out to the screen. This did not happen prior to the .31 kernel(s).

/ is on two disks in raid 0. Each disk is 32GB making a total of 64GB for root. There is 37GB of free space on root so free space is not the issue. 

I use dmraid for my multidisk setup, and up until this kernel line, have never experience such an error in booting.

A link to the launchpad (Ubuntu) bug with other users experiencing the same problem:

Comment 1 Roman Shtylman 2009-07-23 23:13:22 UTC
I have been pointed to a possible patch for the problem:
Comment 2 Rafael J. Wysocki 2009-07-27 22:35:59 UTC
Handled-By : Mike Snitzer <snitzer@redhat.com>
Patch : http://patchwork.kernel.org/patch/33534/
Comment 3 Rafael J. Wysocki 2009-08-02 21:31:31 UTC
*** Bug 13834 has been marked as a duplicate of this bug. ***
Comment 4 Rafael J. Wysocki 2009-08-02 21:35:22 UTC
Fixed by commit 5dea271b6d87bd1d79a59c1d5baac2596a841c37 .