Comment 0 for bug 1789653

Hello,

In 16.04 lts (Ubuntu 4.4.0-134.160-generic 4.4.140) with all partitions in ext4 with flag meta_bg :

kernel: [ 1905.799557] EXT4-fs (dm-7): ext4_check_descriptors: Block bitmap for group 0 overlaps block group descriptors
kernel: [ 1905.799858] EXT4-fs (dm-7): group descriptors corrupted!

Go back with the kernel 4.4.0-133-generic and all partitions mount correctly.

It looks like this: https://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4.git/commit/?id=44de022c4382541cebdd6de4465d1f4f465ff1dd

The patch is available in 4.4.147 (https://lwn.net/Articles/762083/)