<div dir="ltr"><div dir="ltr"> </div><pre style="color:rgb(0,0,0)">Acked-by: Philip Cox <<a href="mailto:philip.cox@canonical.com">philip.cox@canonical.com</a>> </pre> <div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Wed, Mar 22, 2023 at 1:07 PM Tim Gardner <<a href="mailto:tim.gardner@canonical.com">tim.gardner@canonical.com</a>> wrote: </div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">BugLink: <a href="https://bugs.launchpad.net/bugs/2003816" rel="noreferrer" target="_blank">https://bugs.launchpad.net/bugs/2003816</a> Issue resize2fs utility is used to resize the filesystem and is idempotent in nature. But in the 5.15 kernel, successive execution of resize2fs is returning error. Reproduction step (on AWS): Create an AWS instance with AMI ami-056a67ea1b8ffa0fc (Linux 5.15.0-1022-aws) in us-west-2 region and attach an EBS volume. Format and mount the disk - sudo mkfs.ext4 /dev/xvdb, sudo mkdir -p /mnt/ssd0, sudo mount /dev/xvdb /mnt/ssd0 Increase the size of EBS volume. Run sudo resize2fs /dev/xvdb multiple times. The first execution returns - $ sudo resize2fs /dev/xvdb resize2fs 1.45.5 (07-Jan-2020) Filesystem at /dev/xvdb is mounted on /mnt/ssd0; on-line resizing required old_desc_blocks = 2, new_desc_blocks = 3 The filesystem on /dev/xvdb is now 5242880 (4k) blocks long. The following execution returns - $ sudo resize2fs /dev/xvdb resize2fs 1.45.5 (07-Jan-2020) The filesystem is already 5242880 (4k) blocks long. Nothing to do! When you run the same step on the latest image ami-0a1d6d351894df6cc (Linux 5.15.0-1026-aws). The first execution returns - $ sudo resize2fs /dev/xvdb resize2fs 1.45.5 (07-Jan-2020) Filesystem at /dev/xvdb is mounted on /mnt/ssd0; on-line resizing required old_desc_blocks = 2, new_desc_blocks = 3 The filesystem on /dev/xvdb is now 5242880 (4k) blocks long. The following execution returns $ sudo resize2fs /dev/xvdb resize2fs 1.45.5 (07-Jan-2020) resize2fs: Superblock checksum does not match superblock while trying to open /dev/xvdb Couldn't find valid filesystem superblock. This issue has been noted to affect 5.19 kernels as well. A patch set from 5.15.y has been used as a guide for which cherry picks to commit. ------------------------------------------------------------------------ The following changes since commit 78d54428f16c98b741b3190f1c3f6b0ef0430b3e: UBUNTU: Ubuntu-5.19.0-39.40 (2023-03-21 09:35:41 -0700) are available in the Git repository at: git://<a href="http://git.launchpad.net/~timg-tpi/ubuntu/+source/linux/+git/kinetic" rel="noreferrer" target="_blank">git.launchpad.net/~timg-tpi/ubuntu/+source/linux/+git/kinetic</a> lp2003816 for you to fetch changes up to 4b2b6db116cb58b1f0b03db33063e74a72771c49: ext4: fix corrupt backup group descriptors after online resize (2023-03-22 10:32:43 -0600) ---------------------------------------------------------------- Baokun Li (3): ext4: fix bad checksum after online resize ext4: fix corruption when online resizing a 1K bigalloc fs ext4: fix corrupt backup group descriptors after online resize fs/ext4/resize.c | 32 ++++++++++++++++++++------------ 1 file changed, 20 insertions(+), 12 deletions(-) -- ----------- Tim Gardner Canonical, Inc -- kernel-team mailing list <a href="mailto:kernel-team@lists.ubuntu.com" target="_blank">kernel-team@lists.ubuntu.com</a> <a href="https://lists.ubuntu.com/mailman/listinfo/kernel-team" rel="noreferrer" target="_blank">https://lists.ubuntu.com/mailman/listinfo/kernel-team</a> </blockquote></div></div>