[Bug 861281] Re: FSCK on fs with claimed blocks yields Programming Error in process_bad_block

[Theodore Ts'o]

The bad block inode was corrupted in such a way that e2fsck got
confused.  I have implemented a partial protection against which is in
the latest 1.42 pre-release version of e2fsprogs.

The short-term workaround is to use debugfs -w /dev/sdXXX and then use
the command "clri <1>".   That will clear out the bad block inode.

Note that with this kind of corruption, it's likely that the first part
of the inode table has been corrupted, so it's likely the root inode,
and possibly other files, will have been damaged/lost as well.  When
crap gets written into the inode table, there's not much e2fsck can
do....

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https://bugs.launchpad.net/bugs/861281

Title:
  FSCK on fs with claimed blocks yields Programming Error in
  process_bad_block

Status in “e2fsprogs” package in Ubuntu:
  New

Bug description:
  Pass 1: Checking inodes, blocks, and sizes
  Programming error?  block #2013802232 claimed for no reason in process_bad_block.
  Programming error?  block #1648606690 claimed for no reason in process_bad_block.
  Programming error?  block #3170630438 claimed for no reason in process_bad_block.
  Programming error?  block #2013802232 claimed for no reason in process_bad_block.
  Programming error?  block #1648606690 claimed for no reason in process_bad_block.
  Programming error?  block #3170630438 claimed for no reason in process_bad_block.
  Programming error?  block #2013802232 claimed for no reason in process_bad_block.
  Programming error?  block #1648606690 claimed for no reason in process_bad_block.
  Programming error?  block #3170630438 claimed for no reason in process_bad_block.
  Programming error?  block #2013802232 claimed for no reason in process_bad_block.
  Programming error?  block #1648606690 claimed for no reason in process_bad_block.
  Programming error?  block #3170630438 claimed for no reason in process_bad_block.
  Programming error?  block #2013802232 claimed for no reason in process_bad_block.
  Programming error?  block #1648606690 claimed for no reason in process_bad_block.
  Programming error?  block #3170630438 claimed for no reason in process_bad_block.
  Programming error?  block #2013802232 claimed for no reason in process_bad_block.
  Programming error?  block #1648606690 claimed for no reason in process_bad_block.
  Programming error?  block #3170630438 claimed for no reason in process_bad_block.
  Programming error?  block #2013802232 claimed for no reason in process_bad_block.

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