The issue is also present in Jammy distro kernel (linux- image-5.15.0-67-generic) and e2fsprofs 1.46.5-2ubuntu1.1
How to reproduce : * Create an openstack instance and user virtio-scsi as block device controller * Add a Cinder volume (backed by PureStorage/iSCSI) * format the whole volume : mkfs.ext4 /dev/sdb * mount it somewhere : mount /dev/sdb /mnt/test * resize volume from Cinder, check with lsblk that the volume is properly expanded * online resize the volume without unmounting it : resize2fs /mnt/test It works but doing it a second time fails most of the time with the "Superblock checksum does not match superblock" error. Unmounting and doing a fsck fix the problem easily but the "online" feature is severely degraded if you need to do things offline ... -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-aws in Ubuntu. https://bugs.launchpad.net/bugs/2003816 Title: Regression in ext4 during online resize Status in cloud-init package in Ubuntu: Confirmed Status in linux package in Ubuntu: Invalid Status in linux-aws package in Ubuntu: Fix Released Status in linux-azure package in Ubuntu: Fix Released Status in linux-gcp package in Ubuntu: Invalid Status in cloud-init source package in Jammy: Confirmed Status in linux source package in Jammy: Fix Committed Status in linux-aws source package in Jammy: Fix Released Status in linux-azure source package in Jammy: Fix Released Status in linux-gcp source package in Jammy: Fix Released Status in cloud-init source package in Kinetic: Invalid Status in linux source package in Kinetic: Fix Committed Status in linux-aws source package in Kinetic: Fix Committed Status in linux-azure source package in Kinetic: Fix Committed Status in linux-gcp source package in Kinetic: Fix Committed Bug description: 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. FIX: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=a408f33e895e455f16cf964cb5cd4979b658db7b To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/cloud-init/+bug/2003816/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
