On Thu, Jul 07, 2016 at 10:10:40PM +0200, Vegard Nossum wrote:

I ran into a second problem (this time it was num_clusters_in_group()
returning a bogus value) with the same symptoms (random memory
corruptions), the new attached patch fixes both problems by checking the
values at mount time.

Can you give me a dumpe2fs -h of a file system that is causing
num_clusters_in_group() to be bogus?

I want to make sure I'm checking that correct base values, insteda of
doing a brute force loop over all of the block groups and calling
ext4_num_clusters_in_group() and ext4_num_base_meta_clusters() for all
block groups.

Thanks!!

					- Ted