hi,
On Jan 31, 2019, at 1:07 AM, Xiaoguang Wang <xiaoguang.wang@xxxxxxxxxxxxxxxxx> wrote:Anyone can help answer when ext4's backup block group descriptors are updated? I had used blktrace to track the corresponding backup block group descriptor block, but didn't find that any backup blocks were written. Thanks in advance.The ext4 kernel code never updates the backup block group descriptors. That is only done by e2fsck.
I see, thanks very much. Regards, Xiaoguang Wang
Cheers, Andreas
