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[Robert Collins <1233075@xxxxxxxxxxxxxxxxxx>]

interestingly quantal didn't resize, but it didn't lockup either.
Definitely more investigation warranted.

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https://bugs.launchpad.net/bugs/1233075

Title:
  resizefs failure with raring

Status in “linux” package in Ubuntu:
  Confirmed

Bug description:
  Deploying a raring cloud image with a 2.7G filesystem to 2TB hard disk
  crashes in resizefs

  [  143.673885]  0000000000000800 ffff880bd4b87f60 ffff880bca8b7d00 ffffffff8125b
  e47                                                                             
  [  143.673945] Call Trace:                                                      
  [  143.673970]  [<ffffffff8125be47>] ext4_flex_group_add+0x1317/0x1490          
  [  143.674001]  [<ffffffff8125d00a>] ext4_resize_fs+0x74a/0xdc0                 
  [  143.674030]  [<ffffffff8123ae31>] ext4_ioctl+0x971/0xb60                     
  [  143.674060]  [<ffffffff811a4091>] ? do_filp_open+0x41/0xa0                   
  [  143.674089]  [<ffffffff811a61a9>] do_vfs_ioctl+0x99/0x570                    
  [  143.674119]  [<ffffffff8117d00f>] ? kmem_cache_free+0x2f/0x130               
  [  143.674148]  [<ffffffff811a36b2>] ? final_putname+0x22/0x50                  
  [  143.674177]  [<ffffffff811a38b9>] ? putname+0x29/0x40                        
  [  143.674204]  [<ffffffff811a6711>] sys_ioctl+0x91/0xb0                        
  [  143.674233]  [<ffffffff816d59dd>] system_call_fastpath+0x1a/0x1f             
  [  143.674261] Code: 0f 85 f2 fe ff ff 31 c0 48 83 c4 28 5b 41 5c 41 5d 41 5e 41
   5f 5d c3 48 83 c4 28 b8 f4 ff ff ff 5b 41 5c 41 5d 41 5e 41 5f 5d c3 <0f> 0b 90
   66 66 66 66 90 55 48 89 e5 48 83 ec 18 4c 89 65 f0 49                          
  [  143.674584] RIP  [<ffffffff8125a5cd>] set_flexbg_block_bitmap+0x17d/0x180    
  [  143.674618]  RSP <ffff880bca8b7bb0>                                          
  [  143.674643] ---[ end trace 5fa931e218cd3ae5 ]---                             
  2013-09-30 10:07:44,273 - util.py[WARNING]: Failed to resize filesystem (cmd=('r
  esize2fs', '/dev/disk/by-uuid/420927c3-abd7-4b7d-972c-a8b6969d7d53'))           
  2013-09-30 10:07:44,293 - util.py[WARNING]: Running resizefs (<module 'cloudinit
  .config.cc_resizefs' from '/usr/lib/python2.7/dist-packages/cloudinit/config/cc_
  resizefs.pyc'>) failed                    

  Is all the diagnostics I have so far.

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