Hi Luke, A kernel bug report was opened against Ubuntu [0]. This bug was fixed by the following commit in v4.7-rc1:
commit 4c63c2454eff996c5e27991221106eb511f7db38 Author: Luke Dashjr <l...@dashjr.org> Date: Thu Oct 29 08:22:21 2015 +0000 btrfs: bugfix: handle FS_IOC32_{GETFLAGS,SETFLAGS,GETVERSION} in btrfs_ioctl However, this commit introduced a new regression. With this commit applied, "btrfs fi show" no longer works and the btrfs snapshot functionality breaks. I was hoping to get your feedback, since you are the patch author. Do you think gathering any additional data will help diagnose this issue, or would it be best to submit a revert request? Thanks, Joe [0] http://pad.lv/1619918 ** Changed in: linux (Ubuntu Yakkety) Status: Fix Released => In Progress ** Changed in: linux (Ubuntu Vivid) Status: Fix Released => In Progress ** Changed in: linux (Ubuntu Vivid) Assignee: Tim Gardner (timg-tpi) => Joseph Salisbury (jsalisbury) ** Also affects: linux (Ubuntu Zesty) Importance: High Assignee: Joseph Salisbury (jsalisbury) Status: In Progress ** Changed in: linux (Ubuntu Yakkety) Assignee: (unassigned) => Joseph Salisbury (jsalisbury) -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1619918 Title: lsattr 32bit does not work on 64bit kernel (Inappropriate ioctl error) Status in linux: Unknown Status in linux package in Ubuntu: In Progress Status in linux source package in Trusty: In Progress Status in linux source package in Vivid: In Progress Status in linux source package in Xenial: In Progress Status in linux source package in Yakkety: In Progress Status in linux source package in Zesty: In Progress Bug description: I run an amd64 kernel on trusty. The e2fsprogs package was still the 32 bit i386 variety. This lead to the following situation (for essentially all files on a btrfs partition). $ lsattr /lib/modules/3.13.0-95-generic/kernel/drivers/staging/lustre/lustre/ptlrpc/ptlrpc.ko lsattr: Inappropriate ioctl for device While reading flags on /lib/modules/3.13.0-95-generic/kernel/drivers/staging/lustre/lustre/ptlrpc/ptlrpc.ko The problem was resolved by installing e2fsprogs:amd64. https://patchwork.kernel.org/patch/7517361/ might be related. To manage notifications about this bug go to: https://bugs.launchpad.net/kernel/+bug/1619918/+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