** Also affects: linux-gcp (Ubuntu)
Importance: Undecided
Status: New
** Changed in: linux-gcp (Ubuntu Jammy)
Status: New => Fix Committed
** Changed in: linux-gcp (Ubuntu Jammy)
Importance: Undecided => High
** Changed in: linux-gcp (Ubuntu)
Status: New => Invalid
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https://bugs.launchpad.net/bugs/2003816
Title:
Regression in ext4 during online resize
Status in linux package in Ubuntu:
Invalid
Status in linux-gcp package in Ubuntu:
Invalid
Status in linux source package in Jammy:
Fix Committed
Status in linux-gcp source package in Jammy:
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
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