xfs_growfs fails to allocate new inodes in Ubuntu Trusty

[Greg Burek]

Release:
Description: Ubuntu 14.04.2 LTS
Release: 14.04

Packages:
linux-image-3.13.0-46-generic 3.13.0-46.79
xfsprogs 3.1.9ubuntu2

When using xfs_growfs to grow an xfs filesystem, inodes on the grown portion of the filesystem are not available for writing, leading to ENOSPC errors even when free disk space and unused inodes are reported by df -i and df.

Actual results:
A worker creating many files, will run out of inode space as if the fs was not grown.

Expected results:
A worker creating many files, will continue to create new files for the grown fs.

mount -o remount,inode64 /mnt/point fixes this issue and allows further writes to the grown fs.

More information and reproduction steps can be found in this bug report: https://bugzilla.redhat.com/show_bug.cgi?id=1115201

Also, the LXC FAQ has a description that indicates this bug has been present since kernel 3.7. It also offers the work around I wrote above: http://xfs.org/index.php/XFS_FAQ#Q:_Why_do_I_receive_No_space_left_on_device_after_xfs_growfs.3F

This bug has been fixed upstream in 3.17: https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=9de67c3ba9ea961ba420573d56479d09d33a7587

[Greg Burek (greg-burek)]

Add xfsprogs to packages

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Joseph Salisbury (jsalisbury)]

I built a Trusty test kernel with a cherry pick of commit: 9de67c3. The test kernel can be downloaded from:
http://kernel.ubuntu.com/~jsalisbury/lp1434914/

Can you test this kernel and see if it resolves this bug? If it does, we can request this commit in the upstream stable kernels and SRU to Utopic and Trusty.

Note, you will need to install both the linux-image and linux-image-extra .deb packages.

[Launchpad Janitor (janitor)]

[Expired for linux (Ubuntu Utopic) because there has been no activity for 60 days.]

[Launchpad Janitor (janitor)]

[Expired for linux (Ubuntu Trusty) because there has been no activity for 60 days.]

[Launchpad Janitor (janitor)]

[Expired for linux (Ubuntu) because there has been no activity for 60 days.]