@foundations & EDM can we have this backported all the way to trusty? Xenial for sure.
** Tags added: rls-mm-incoming ** Information type changed from Public to Public Security ** Also affects: cloud-images Importance: Undecided Status: New ** Changed in: cloud-images Importance: Undecided => Critical -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to e2fsprogs in Ubuntu. https://bugs.launchpad.net/bugs/2036467 Title: superblock checksum mismatch in resize2fs Status in cloud-images: New Status in e2fsprogs package in Ubuntu: Confirmed Bug description: Hi, We run ext4 on EBS volumes on EC2. During provisioning, cloud-init will occasionally report that resize2fs has failed due to a superblock checksum mismatch. We debugged this internally, and were able to come up with the following reproducer: #!/usr/bin/bash set -euxo pipefail while true do parted /dev/nvme1n1 mklabel gpt mkpart primary 2048s 2099200s sleep .5 mkfs.ext4 /dev/nvme1n1p1 mount -t ext4 /dev/nvme1n1p1 /mnt stress-ng --temp-path /mnt -D 4 & STRESS_PID=$! sleep 1 growpart /dev/nvme1n1 1 resize2fs /dev/nvme1n1p1 kill $STRESS_PID wait $STRESS_PID umount /mnt wipefs -a /dev/nvme1n1p1 wipefs -a /dev/nvme1n1 done (This was on a 60gb gp3 volume attached to a c5.4xlarge) We were able to find a fix that works and get the patch accepted upstream. The short explanation is that by switching the superblock read to direct io, we no longer see the problem. The patch is available here, but hasn't been published in a released version of e2fsprogs: https://git.kernel.org/pub/scm/fs/ext2/e2fsprogs.git/commit/?id=43a498e938887956f393b5e45ea6ac79cc5f4b84 A longer thread with the maintainer is available here: https://lore.kernel.org/linux-ext4/20230609042239.ga1436...@mit.edu/ This bug report is to request that Ubuntu backport this patch to the versions of e2fsprogs that are in releases that are available in images on AWS, preferably Focal and Jammy. To manage notifications about this bug go to: https://bugs.launchpad.net/cloud-images/+bug/2036467/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp